JP7265960B2 - Transparent resin laminate, transparent substrate material and transparent protective material using the same - Google Patents

Description

TECHNICAL FIELD The present invention relates to a resin laminate used for transparent substrate materials and protective materials. More specifically, the present invention relates to a resin laminate that is excellent in thermoformability at low temperatures, suppresses the occurrence of interference fringes, and has a good appearance.

Acrylic resins are excellent in surface hardness, transparency, scratch resistance and weather resistance. On the other hand, polycarbonate resin is excellent in impact resistance and the like. For this reason, a laminate having an acrylic resin layer and a polycarbonate resin layer is excellent in surface hardness, transparency, scratch resistance, weather resistance, impact resistance, etc. It is used for the display window of

In recent years, with the diversification of design needs, there is a demand for products with enhanced design properties, such as front panels of display devices, that are formed by thermoforming such as vacuum forming and pressure forming. A laminate having an acrylic resin layer and a polycarbonate resin layer has been attempted to be applied to a front panel because of its excellent performance as described above. However, when a laminate having an acrylic resin layer and a polycarbonate resin layer is thermoformed, it is necessary to heat the sheet to a temperature at which the polycarbonate resin is sufficiently stretched, and excessive heat is applied to the acrylic resin. Separation may occur at the interface between the acrylic resin layer and the polycarbonate resin layer, and the surface may become white or crack may occur.

Patent Document 1 discloses a laminate of a styrene-maleic anhydride copolymer/methacrylic resin alloy layer and a polycarbonate resin layer for thermoforming at a temperature of 160°C. Such a laminate does not cause any problems when thermoformed at a temperature of 160°C. However, a resin laminate having a hard coat layer on the surface of the alloy layer of styrene-maleic anhydride copolymer and methacrylic resin of such a laminate causes cracks in the bending portion of the resin laminate when thermoforming is performed at a temperature of 160 ° C. There was a problem that occurred.

International Publication No. 2015/133530

An object of the present invention is to provide a resin laminate that is excellent in thermoformability at low temperatures, suppresses the occurrence of interference fringes, and has a good appearance.

The present inventors completed the present invention as a result of earnest studies to solve the above problems. Specifically, the present invention is as follows.

[1] A layer containing a thermoplastic resin (B) is provided on at least one surface of a layer containing a polycarbonate resin (A), and a hard coat layer is provided on at least one surface of the layer containing the thermoplastic resin (B). A resin laminate having
The polycarbonate-based resin (A) has a glass transition temperature higher than 140° C. and not higher than 170° C.,
The content of the methacrylic resin (C) in the thermoplastic resin (B) is 5 to 70 parts by mass based on the total content of the methacrylic resin (C) and the styrene copolymer (D) of 100 parts by mass. , the content of the styrene copolymer (D) is 95 to 30 parts by mass,
The methacrylic resin (C) contains 80 mol% or more of structural units derived from a methacrylic acid ester monomer,
A copolymer in which the styrene copolymer (D) contains 68 to 84% by mass of vinyl aromatic monomer units (d1) and 16 to 32% by mass of cyclic acid anhydride monomer units (d2) The resin laminate.
[2] The resin laminate according to [1] above, which does not generate cracks after being thermoformed to a radius of 50 mm with a hot press.
[3] The resin laminate according to [1] or [2] above, wherein the thermoplastic resin (B) is a polymer alloy of a methacrylic resin (C) and a styrene copolymer (D).
[4] The resin laminate according to any one of [1] to [3] above, wherein the vinyl aromatic monomer unit (d1) contained in the styrene copolymer (D) is styrene.
[5] The resin laminate according to any one of [1] to [4] above, wherein the cyclic acid anhydride monomer unit (d2) contained in the styrene copolymer (D) is maleic anhydride.
[6] The above [1] to [5], wherein the thickness of the layer containing the thermoplastic resin (B) is 10 to 250 μm, and the total thickness of the resin laminate is in the range of 0.4 to 4.0 mm. The resin laminate according to any one of the above.
[7] Any one of the above [1] to [6], wherein at least one of the layer containing the polycarbonate resin (A), the layer containing the thermoplastic resin (B), and the hard coat layer contains an ultraviolet absorber. The resin laminate according to 1.
[8] The resin laminate according to any one of [1] to [7] above, wherein the hard coat layer is an acrylic hard coat.
[9] At least one of anti-fingerprint treatment, antireflection treatment, antiglare treatment, weather resistance treatment, antistatic treatment and antifouling treatment is applied to one or both surfaces of the resin laminate, above [1] to [8] The resin laminate according to any one of [8].
[10] A thermoformed product obtained by thermally bending the resin laminate according to any one of [1] to [9] above.
[11] A transparent substrate material comprising the resin laminate described in any one of [1] to [9] above or the thermoformed product described in [10] above.
[12] A transparent protective material comprising the resin laminate described in any one of [1] to [9] above or the thermoformed product described in [10] above.
[13] A touch panel front protection plate comprising the resin laminate according to any one of [1] to [9] above or the thermoformed product according to [10] above.
[14] A front panel for car navigation, OA equipment or portable electronic equipment, comprising the resin laminate according to any one of [1] to [9] above or the thermoformed product according to [10] above.

ADVANTAGE OF THE INVENTION According to this invention, the resin laminated body which is excellent in thermoforming at low temperature and can form a thermoformed article in which the occurrence of interference fringes is suppressed is provided. That is, the resin laminate of the present invention is inhibited from whitening and cracking during thermoforming, and a molded article having a good appearance can be obtained.
The resin laminate can be used as a transparent substrate material or a transparent protective material. Specifically, portable display devices such as mobile phone terminals, portable electronic playground equipment, personal digital assistants, and mobile PCs, and stationary display devices such as notebook PCs, desktop PC liquid crystal monitors, car navigation liquid crystal monitors, and liquid crystal televisions. , it can be suitably used, for example, as a front panel for protecting these devices.

Hereinafter, the present invention will be described in detail by exemplifying production examples, examples, etc., but the present invention is not limited to the exemplified production examples, examples, etc., and is within the scope of the present invention. If so, it can be changed to any method.

具体的には、ポリカーボネート系樹脂（Ａ）として、芳香族ポリカーボネート樹脂（例えば、三菱エンジニアリングプラスチックス株式会社から市販されている、ユーピロンＳ－２０００、ユーピロンＳ－１０００、ユーピロンＥ－２０００）等が使用可能である。
本発明に使用されるポリカーボネート系樹脂（Ａ）のガラス転移温度は、１４０℃より高く１７０℃以下が好ましく、１４０℃より高く１６０℃以下がより好ましく、１４０℃より高く１５０℃以下が特に好ましい。
近年、前面板にも曲げ加工を行うような要望が増えていることから、ポリカーボネート系樹脂（Ａ）は、下記一般式（２）で表わされる１価フェノールを末端停止剤として用いて合成することが好ましい。

（式中、Ｒ_１は、炭素数８～３６のアルキル基、又は炭素数８～３６のアルケニル基を表し、
Ｒ_２～Ｒ_５はそれぞれ水素、ハロゲン、又は置換基を有してもよい炭素数１～２０のアルキル基若しくは炭素数６～１２のアリール基を表し、置換基は、ハロゲン、炭素数１～２０のアルキル基、又は炭素数６～１２のアリール基である。） <Polycarbonate resin (A)>
The polycarbonate-based resin (A) used in the present invention is a polycarbonate-based resin (A) containing a polycarbonate resin as a main component. Here, "mainly comprising a polycarbonate resin" means that the content of the polycarbonate resin exceeds 50% by mass. The polycarbonate-based resin (A) preferably contains 75% by mass or more of a polycarbonate resin, more preferably 90% by mass or more of a polycarbonate resin, and further preferably consists essentially of a polycarbonate resin. . The polycarbonate-based resin (A) contains a carbonate ester bond in its molecular main chain. That is, -[OR-OCO]- units (wherein R is an aliphatic group, an aromatic group, or those containing both an aliphatic group and an aromatic group, those having a linear or branched structure is not particularly limited as long as it contains a structural unit of the following formula (1). By using such a polycarbonate, a resin laminate having excellent impact resistance can be obtained.

Specifically, as the polycarbonate-based resin (A), an aromatic polycarbonate resin (eg, Iupilon S-2000, Iupilon S-1000, Iupilon E-2000, commercially available from Mitsubishi Engineering-Plastics Co., Ltd.) is used. It is possible.
The glass transition temperature of the polycarbonate resin (A) used in the present invention is preferably higher than 140°C and 170°C or lower, more preferably higher than 140°C and 160°C or lower, and particularly preferably higher than 140°C and 150°C or lower.
In recent years, there has been an increasing demand for bending the front plate, so that the polycarbonate resin (A) is synthesized using a monohydric phenol represented by the following general formula (2) as a terminal terminator. is preferred.

(wherein R ₁ represents an alkyl group having 8 to 36 carbon atoms or an alkenyl group having 8 to 36 carbon atoms,
R ₂ to R ₅ each represent hydrogen, halogen, or an optionally substituted alkyl group having 1 to 20 carbon atoms or aryl group having 6 to 12 carbon atoms, wherein the substituent is halogen, or 1 to 12 carbon atoms. 20 alkyl groups, or aryl groups having 6 to 12 carbon atoms. )

（式中、Ｒ_１は、炭素数８～３６のアルキル基、又は、炭素数８～３６のアルケニル基を表す。） The monohydric phenol of general formula (2) is more preferably a monohydric phenol represented by the following general formula (3).

(In the formula, R ₁ represents an alkyl group having 8 to 36 carbon atoms or an alkenyl group having 8 to 36 carbon atoms.)

More preferably, the number of carbon atoms in R ₁ in general formula (2) or general formula (3) is within a specific numerical range. Specifically, the upper limit of the number of carbon atoms in R ₁ is preferably 36, more preferably 22, and particularly preferably 18. Moreover, as a lower limit of carbon number of _R1 , 8 is preferable and 12 is more preferable.

Among the monohydric phenols (terminal terminator) represented by general formula (2) or general formula (3), either or both of parahydroxybenzoic acid hexadecyl ester and parahydroxybenzoic acid 2-hexyldecyl ester are terminally terminated. Their use as agents is particularly preferred.

As R ₁ in general formula (2) or general formula (3), for example, when a monohydric phenol (terminal terminator) having an alkyl group having 16 carbon atoms is used, glass transition temperature, melt fluidity, moldability, It is excellent in drawdown resistance and solvent solubility of monohydric phenol during polycarbonate resin production, and is particularly preferable as a terminal terminator used in the polycarbonate resin used in the present invention.

On the other hand, if the number of carbon atoms in R ₁ in general formula (2) or general formula (3) increases too much, the solubility of the monohydric phenol (terminal terminator) in organic solvents tends to decrease, and the Productivity may decrease.
As an example, if the number of carbon atoms in R ₁ is 36 or less, productivity is high and economic efficiency is good in producing a polycarbonate resin. If the number of carbon atoms in R ₁ is 22 or less, the monohydric phenol is particularly excellent in organic solvent solubility, and the productivity in producing polycarbonate resin can be greatly increased, and the economic efficiency is also improved.
If the carbon number of R ₁ in general formula (2) or general formula (3) is too small, the glass transition temperature of the polycarbonate resin will not be sufficiently low, and thermoformability may deteriorate.

Other resins contained in the polycarbonate-based resin (A) include polyester-based resins. The polyester-based resin may contain terephthalic acid as a main component as a dicarboxylic acid component, and may contain a dicarboxylic acid component other than terephthalic acid. For example, polycondensation of a glycol component containing 20 to 40 (molar ratio, total 100) of 1,4-cyclohexanedimethanol to 80 to 60 (molar ratio) of ethylene glycol as the main component and a dicarboxylic acid component. A polyester-based resin, so-called "PETG", is preferred. Moreover, the polycarbonate-based resin (A) may contain a polyester carbonate-based resin having an ester bond and a carbonate bond in the polymer skeleton.

In the present invention, the weight average molecular weight of the polycarbonate resin (A) affects the impact resistance and molding conditions of the resin laminate. In other words, if the weight average molecular weight is too small, the impact resistance of the resin laminate is lowered, which is not preferable. If the weight average molecular weight is too high, an excessive heat source may be required when laminating the layer containing the polycarbonate resin (A), which is not preferred. Moreover, since a high temperature is required depending on the molding method, the polycarbonate resin (A) is exposed to high temperatures, which may adversely affect its thermal stability. The weight average molecular weight of the polycarbonate resin (A) is preferably 15,000 to 75,000, more preferably 20,000 to 70,000. More preferably 25,000 to 65,000.

<Method for measuring weight average molecular weight of polycarbonate resin (A)>
The weight average molecular weight of the polycarbonate-based resin (A) can be measured according to paragraphs 0061 to 0064 of JP-A-2007-179018. Details of the measurement method are shown below.

After measurement using polystyrene (PS) as a standard polymer, the relationship between the elution time and the molecular weight of polycarbonate (PC) is determined by the universal calibration method to obtain a calibration curve. Then, the PC elution curve (chromatogram) is measured under the same conditions as the calibration curve, and each average molecular weight is determined from the elution time (molecular weight) and the peak area (number of molecules) at that elution time. When the number of molecules of the molecular weight Mi is Ni, the weight average molecular weight is expressed as follows. The following formula was used as the conversion formula.
(Weight average molecular weight)
Mw = Σ(NiMi ² )/Σ(NiMi)
(conversion formula)
MPC = 0.47822 MPS ^1.01470
MPC indicates the molecular weight of PC, and MPS indicates the molecular weight of PS.

The glass transition temperature of the polycarbonate-based resin (A) used in the present invention was measured using a differential scanning calorimeter at a heating rate of 10° C./min, and calculated at the intersection of the baseline and the tangent line at the inflection point. temperature.

The melt flow rate of the polycarbonate resin (A) is preferably in the range of 1 to 30 g/10 minutes, more preferably in the range of 4 to 10 g/10 minutes, and in the range of 5 to 8 g/10 minutes. It is more preferable to have When the melt flow rate is in the range of 1 to 30 g/10 minutes, the stability of hot melt molding is good. The melt flow rate of the polycarbonate-based resin (A) in this specification is measured using a melt indexer under conditions of a temperature of 300° C. and a load of 1.2 kg.

The method for producing the polycarbonate-based resin (A) used in the present invention can be appropriately selected from a known phosgene method (interfacial polymerization method), transesterification method (melting method), and the like, depending on the monomers used.

<Thermoplastic resin (B)>
The thermoplastic resin (B) used in the present invention contains methacrylic resin (C) and styrene copolymer (D). Each component is described below.

<Methacrylic resin (C)>
The methacrylic resin (C) contained in the thermoplastic resin (B) according to the present invention includes structural units derived from methacrylic acid ester monomers.

Examples of methacrylic ester monomers of the methacrylic resin (C) include methyl methacrylate, ethyl methacrylate, n-propyl methacrylate, isopropyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, tert-butyl methacrylate, Alkyl methacrylates such as pentyl methacrylate, hexyl methacrylate, heptyl methacrylate, 2-ethylhexyl methacrylate, nonyl methacrylate, decyl methacrylate, and dodecyl methacrylate; 1-methylcyclopentyl methacrylate, cyclohexyl methacrylate, cyclo methacrylate Methacrylic acid cycloalkyl esters such as heptyl, cyclooctyl methacrylate, tricyclo[5.2.1.02,6]dec-8-yl methacrylate; methacrylic acid aryl esters such as phenyl methacrylate; methacrylic acid such as benzyl methacrylate acid aralkyl esters, and from the viewpoint of availability, methyl methacrylate, ethyl methacrylate, n-propyl methacrylate, isopropyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, and tert-butyl methacrylate. Preferred, most preferred is methyl methacrylate.

From the viewpoint of heat resistance, the methacrylic resin (C) preferably contains 80 mol% or more, more preferably 90 mol% or more, of a structural unit derived from a methacrylic acid ester monomer. % or more is more preferable. When the methacrylic resin (C) contains 80 mol % or more of structural units derived from methacrylic acid ester monomers, the compatibility with the styrene copolymer (D) is improved, which is preferable. On the other hand, if the structural unit derived from the methacrylic acid ester monomer is less than 80 mol %, the polymer may not be compatible with the styrene copolymer (D) and may become cloudy.

Moreover, the methacrylic resin (C) may contain a structural unit derived from a monomer other than the methacrylic acid ester. Such other monomers include methyl acrylate, ethyl acrylate, n-propyl acrylate, isopropyl acrylate, n-butyl acrylate, isobutyl acrylate, tert-butyl acrylate, hexyl acrylate, acrylic acid 2 -ethylhexyl, nonyl acrylate, decyl acrylate, dodecyl acrylate, stearyl acrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, 4-hydroxybutyl acrylate, cyclohexyl acrylate, 2-methoxyethyl acrylate , 3-methoxybutyl acrylate, trifluoromethyl acrylate, trifluoroethyl acrylate, pentafluoroethyl acrylate, glycidyl acrylate, allyl acrylate, phenyl acrylate, toluyl acrylate, benzyl acrylate, isobornyl acrylate, Acrylic esters such as 3-dimethylaminoethyl acrylate, and from the viewpoint of availability, methyl acrylate, ethyl acrylate, n-propyl acrylate, isopropyl acrylate, n-butyl acrylate, isobutyl acrylate, Acrylic esters such as tert-butyl acrylate are preferred, methyl acrylate and ethyl acrylate are more preferred, and methyl acrylate is most preferred. The total content of structural units derived from these other monomers in the methacrylic resin (C) is preferably 20 mol % or less, more preferably 10 mol % or less, and even more preferably 5 mol % or less.

The lower limit of the syndiotacticity (rr) of the methacrylic resin (C) in triad representation is preferably 50 mol% or more, more preferably 51% mol or more, and 52% mol or more. is more preferred. When the lower limit of the content of such a structure is 50 mol% or more, excellent heat resistance can be obtained.

Here, syndiotacticity (rr) in triad notation (hereinafter sometimes simply referred to as "syndiotacticity (rr)") is a chain of three consecutive structural units (triad ) are both racemo (denoted as rr). In addition, in a chain (diad) of structural units in a polymer molecule, those having the same configuration are called meso, and those having the opposite configuration are called racemo, and are denoted by m and r, respectively.
The syndiotacticity (rr) (%) of the methacrylic resin (C) was obtained by measuring the ¹ H-NMR spectrum at 30°C in deuterated chloroform, and tetramethylsilane (TMS) was taken as 0 ppm from the spectrum. Measure the area (X) of the region of 0.6 to 0.95 ppm and the area (Y) of the region of 0.6 to 1.35 ppm, and calculate by the formula: (X / Y) × 100 be able to.

The weight average molecular weight of the methacrylic resin (C) is determined by the ease of mixing (dispersion) with the styrene copolymer (D) and the ease of production of these thermoplastic resins (B). That is, if the weight average molecular weight of the methacrylic resin (C) is too large, the melt viscosity difference between the styrene copolymer (D) and the styrene copolymer (D) becomes too large, and the mixing (dispersion) of the two becomes poor, resulting in the thermoplastic resin (B ), or problems such as the inability to continue stable melt-kneading may occur. Conversely, if the weight average molecular weight of the methacrylic resin (C) is too small, the strength of the thermoplastic resin (B) is reduced, which may cause a problem of reduced impact resistance of the resin laminate. The weight average molecular weight of the methacrylic resin (C) is preferably in the range of 50,000 to 700,000, more preferably in the range of 60,000 to 500,000. More preferably, it is in the range of 70,000 to 200,000. The weight average molecular weight is a standard polystyrene-equivalent weight average molecular weight measured by gel permeation chromatography (GPC).

The glass transition temperature of the methacrylic resin (C) is preferably 100° C. or higher, more preferably 105° C. or higher, and even more preferably 108° C. or higher. When the glass transition temperature is 100° C. or higher, the laminate provided by the present invention is less likely to be deformed or cracked in a thermal environment. The glass transition temperature of the methacrylic resin (C) in this specification is measured using a differential scanning calorimeter at a heating rate of 10° C./min, and calculated at the intersection of the baseline and the tangent line at the inflection point. temperature.

The melt flow rate of the methacrylic resin (C) is preferably in the range of 1 to 10 g/10 minutes. The lower limit of such melt flow rate is more preferably 1.2 g/10 minutes or more, more preferably 1.5 g/10 minutes or more. Moreover, the upper limit of the melt flow rate is more preferably 7.0 g/10 minutes or less, more preferably 4.0 g/10 minutes or less. When the melt flow rate is in the range of 1 to 10 g/10 minutes, the stability of hot melt molding is good. The melt flow rate of the methacrylic resin (C) in this specification is a value measured using a melt indexer at a temperature of 230° C. under a load of 3.8 kg.

<Styrene copolymer (D)>
The styrene copolymer (D) contained in the thermoplastic resin (B) according to the present invention contains a vinyl aromatic monomer unit (d1) and a cyclic acid anhydride monomer unit (d2). The total ratio of the group monomer unit (d1) and the cyclic acid anhydride monomer unit (d2) is 92 to 100% by mass based on the total of all monomer units in the styrene copolymer (D) It is characterized by being

The vinyl aromatic monomer unit (d1) of the styrene copolymer (D) is not particularly limited, and any known aromatic vinyl monomer can be used. From the point of view, styrene, α-methylstyrene, o-methylstyrene, m-methylstyrene, p-methylstyrene, t-butylstyrene and the like can be mentioned. Among these, styrene is particularly preferred from the viewpoint of compatibility. Two or more of these aromatic vinyl monomers may be mixed.

Examples of the cyclic acid anhydride monomer unit (d2) of the styrene copolymer (D) include acid anhydrides such as maleic acid, itaconic acid, citraconic acid, and aconitic acid. maleic anhydride is preferred from the viewpoint of Two or more of these unsaturated dicarboxylic acid anhydride monomers may be mixed.

In the styrene copolymer (D) used in the present invention, the total ratio of the vinyl aromatic monomer unit (d1) and the cyclic acid anhydride monomer unit (d2) is the same as the styrene copolymer ( It is 92 to 100% by mass, preferably 95 to 100% by mass, more preferably 98 to 100% by mass, based on the sum of all monomer units in D).
That is, the styrene copolymer (D) contains the vinyl aromatic monomer unit (d1) and the cyclic acid anhydride monomer in a range of 8% by mass or less with respect to the total of all monomer units. It may contain a monomer unit other than the unit (d2). Examples of monomer units other than the vinyl aromatic monomer unit (d1) and the cyclic acid anhydride monomer unit (d2) include a methacrylic acid ester monomer unit and an N-substituted maleimide monomer. body, etc.
The methacrylate ester monomer units in the styrene copolymer (D) include methyl methacrylate, ethyl methacrylate, n-propyl methacrylate, isopropyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, and tert methacrylate. - Methacrylate alkyl esters such as butyl, pentyl methacrylate, hexyl methacrylate, heptyl methacrylate, 2-ethylhexyl methacrylate, nonyl methacrylate, decyl methacrylate, dodecyl methacrylate; 1-methylcyclopentyl methacrylate, cyclohexyl methacrylate, cycloalkyl methacrylates such as cycloheptyl methacrylate, cyclooctyl methacrylate, tricyclo[5.2.1.02,6]dec-8-yl methacrylate; aryl methacrylates such as phenyl methacrylate; benzyl methacrylate methacrylic acid aralkyl esters, etc., and methyl methacrylate is preferred from the viewpoint of compatibility with methacrylic resins. Two or more of these methacrylic acid ester monomers may be mixed.
Examples of the N-substituted maleimide monomer in the styrene copolymer (D) include N-phenylmaleimide, N-chlorophenylmaleimide, N-methylphenylmaleimide, N-naphthylmaleimide, N-hydroxyphenylmaleimide, N-methoxy Examples include N-arylmaleimides such as phenylmaleimide, N-carboxyphenylmaleimide, N-nitrophenylmaleimide, N-tribromophenylmaleimide, etc. N-phenylmaleimide is preferred from the viewpoint of compatibility with methacrylic resins. Two or more of these N-substituted maleimide monomers may be mixed.

The proportion of the vinyl aromatic monomer unit (d1) is 68 to 84% by mass, preferably 70 to 82% by mass, based on the total of all monomer units in the styrene copolymer (D). , more preferably 74 to 80% by mass, still more preferably 76 to 79% by mass. The proportion of the cyclic acid anhydride monomer unit (d2) is 16 to 32% by mass, preferably 18 to 30% by mass, based on the total of all monomer units in the styrene copolymer (D). %, more preferably 20 to 26 mass %, still more preferably 21 to 24 mass %.
When the ratio of the vinyl aromatic monomer unit (d1) to the total of all monomer units in the styrene copolymer (D) is other than 68 to 84% by mass, the phase with the methacrylic resin (C) poor solubility. Further, when the ratio of the cyclic acid anhydride monomer unit (d2) to the total of all monomer units in the styrene copolymer (D) is other than 16 to 32% by mass, the methacrylic resin (C) and compatibility of becomes worse.

The weight average molecular weight of the styrene copolymer (D) is not particularly limited, but from the viewpoint of compatibility with the methacrylic resin (C), it is preferably from 30,000 to 400,000, more preferably from 40,000 to 40,000. 300,000 is more preferred, and 50,000 to 200,000 is particularly preferred. The weight average molecular weight is a standard polystyrene-equivalent weight average molecular weight measured by gel permeation chromatography (GPC).

The glass transition temperature of the styrene copolymer (D) is preferably in the range of 120 to 190°C, more preferably in the range of 130 to 170°C. Since the glass transition temperature is 120° C. or higher, the laminate provided by the present invention hardly deforms or cracks in a thermal environment. Further, since the temperature is 190° C. or less, it is excellent in workability such as continuous thermal shaping with mirror-finished rolls or shaping rolls, or batch-type thermal shaping with mirror-finished dies or shaping dies. The glass transition temperature of the styrene copolymer (D) in this specification is measured using a differential scanning calorimeter at a heating rate of 10 ° C./min, and is the intersection of the baseline and the tangent line at the inflection point. It is the temperature when calculated.

The melt flow rate of the styrene copolymer (D) is preferably in the range of 1 to 10 g/10 minutes, more preferably in the range of 4 to 9 g/10 minutes, and 6 to 8 g/10 minutes. is more preferred. When the melt flow rate is in the range of 1 to 10 g/10 minutes, the stability of hot melt molding is good. The melt flow rate of the styrene copolymer (D) in this specification is a value measured using a melt indexer at a temperature of 230° C. under a load of 3.8 kg.

The method for producing the styrene copolymer (D) is not particularly limited, but can be appropriately selected from known solution polymerization methods, bulk polymerization methods, suspension polymerization methods, and the like.

The styrene copolymer (D) is a binary or multi-component copolymer containing a vinyl aromatic monomer unit (d1) and a cyclic acid anhydride monomer unit (d2). , By using the methacrylic resin (C) in combination, the resin has a higher hardness than the case of using the styrene copolymer (D) alone and has excellent thermoformability than the case of using the methacrylic resin (C) alone. A laminate is obtained.

In the present invention, the mass ratio of the methacrylic resin (C) and the styrene copolymer (D) is based on the total content of 100 parts by mass of the methacrylic resin (C) and the styrene copolymer (D). It is preferable that the methacrylic resin (C) is 5 to 70 parts by mass and the styrene copolymer (D) is 95 to 30 parts by mass. More preferably, the methacrylic resin (C) is 10 to 65 parts by mass, and the styrene copolymer (D) is 90 to 35 parts by mass. The styrene copolymer (D) is 85 to 40 parts by mass based on parts by mass, and particularly preferably the styrene copolymer (D) is added to 20 to 55 parts by mass of the methacrylic resin (C). 80 to 45 parts by mass. By setting the mass ratio within this range, an excellent thermoplastic resin (B) having excellent heat resistance, a high refractive index, and a good appearance can be obtained while maintaining transparency.

The glass transition temperature of the thermoplastic resin (B) is preferably in the range of 120 to 165°C, more preferably in the range of 120 to 155°C. Since the glass transition temperature is 120° C. or higher, the laminate provided by the present invention hardly deforms or cracks in a thermal environment. Further, since the temperature is 165° C. or less, it is excellent in workability such as continuous thermal shaping with mirror-finished rolls or shaping rolls, or batch-type thermal shaping with mirror-finished dies or shaping dies. The glass transition temperature of the thermoplastic resin (B) in this specification is measured using a differential scanning calorimeter at a heating rate of 10° C./min, and calculated at the intersection of the baseline and the tangent line at the inflection point. is the temperature when

The melt flow rate of the thermoplastic resin (B) is preferably in the range of 1 to 10 g/10 minutes, more preferably in the range of 1.5 to 7 g/10 minutes, and 2 to 5 g/10 minutes. It is even more preferable to have When the melt flow rate is in the range of 1 to 10 g/10 minutes, the stability of hot melt molding is good. The melt flow rate of the thermoplastic resin (B) in this specification is a value measured using a melt indexer at a temperature of 230° C. under a load of 3.8 kg.

In the present invention, the method for producing the thermoplastic resin (B) is not particularly limited, and the necessary components are mixed in advance using a mixer such as a tumbler, Henschel mixer, or super mixer, and then the Banbury mixer. , a roll, a Brabender, a single-screw extruder, a twin-screw extruder, a pressure kneader, or other known method of melt-kneading can be applied.

The glass transition temperature of the thermoplastic resin (B) used in the present invention is relatively high, and the difference from the glass transition temperature of the polycarbonate resin (A) is small. Even if the temperature is close to the glass transition temperature of (A), there is an advantage that there is little problem that the layer containing the thermoplastic resin (B) has poor appearance. The difference between the glass transition temperature of the polycarbonate resin (A) and the glass transition temperature of the thermoplastic resin (B) is preferably in the range of 0 to 30°C, more preferably in the range of 0 to 20°C. .

<Hard coat layer>
Further layers may be present between the hard coat layer according to the present invention and the layer containing the thermoplastic resin (B), but preferably the hard coat layer is formed on the surface or both sides of the layer containing the thermoplastic resin (B). is laminated to The hard coat layer is preferably an acrylic hard coat. As used herein, the term "acrylic hard coat" means a coating formed by polymerizing a monomer, oligomer or prepolymer containing a (meth)acryloyl group as a polymerizable group to form a crosslinked structure. The composition of the acrylic hard coat preferably contains 2 to 98% by mass of a (meth)acrylic monomer, 2 to 98% by mass of a (meth)acrylic oligomer, and 0 to 15% by mass of a surface modifier. It is preferable to include 0.001 to 7 parts by mass of a photopolymerization initiator with respect to 100 parts by mass of the total of the (meth)acrylic monomer, the (meth)acrylic oligomer and the surface modifier.

The hard coat layer more preferably contains 5 to 50% by mass of a (meth)acrylic monomer, 50 to 95% by mass of a (meth)acrylic oligomer and 1 to 10% by mass of a surface modifier, particularly preferably , 20 to 40% by mass of (meth)acrylic monomer, 60 to 80% by mass of (meth)acrylic oligomer, and 2 to 5% by mass of surface modifier.
The amount of the photopolymerization initiator is more preferably 0.01 to 5 parts by mass with respect to 100 parts by mass of the total amount of the (meth)acrylic monomer, the (meth)acrylic oligomer and the surface modifier, 0.1 to 3 parts by mass is particularly preferred.

Any monomer having a (meth)acryloyl group as a functional group in the molecule can be used as the (meth)acrylic monomer, and may be a monofunctional monomer, a bifunctional monomer, or a trifunctional or higher monomer.
Examples of monofunctional monomers include (meth)acrylic acid and (meth)acrylic acid esters, and specific examples of bifunctional and/or trifunctional or higher (meth)acrylic monomers include diethylene glycol di(meth)acrylate, di Propylene glycol di(meth)acrylate, tripropylene glycol di(meth)acrylate, 1,6-hexanediol di(meth)acrylate, bisphenol A diglycidyl ether di(meth)acrylate, tetraethylene glycol di(meth)acrylate, hydroxy Neopentyl glycol pivalate diacrylate, neopentyl glycol di(meth)acrylate, 1,4-butanediol diacrylate, 1,3-butylene glycol di(meth)acrylate, dicyclopentanyl di(meth)acrylate, polyethylene glycol Diacrylate, 1,4-butanediol oligoacrylate, neopentyl glycol oligoacrylate, 1,6-hexanediol oligoacrylate, trimethylolpropane tri(meth)acrylate, trimethylolpropane ethoxy tri(meth)acrylate, trimethylolpropanepropoxy tri(meth)acrylate, pentaerythritol tri(meth)acrylate, glycerylpropoxy tri(meth)acrylate, trimethylolpropane trimethacrylate, trimethylolpropane ethylene oxide adduct triacrylate, glycerin propylene oxide adduct triacrylate, pentaerythritol tetraacrylate, etc. can be exemplified.
The hard coat layer may contain one or more (meth)acrylic monomers.

Examples of (meth)acrylic oligomers include bifunctional or higher polyfunctional urethane (meth)acrylate oligomers (hereinafter also referred to as polyfunctional urethane (meth)acrylate oligomers), bifunctional or higher polyfunctional polyester (meth)acrylate oligomers (hereinafter referred to as , polyfunctional polyester (meth)acrylate oligomer], bifunctional or higher polyfunctional epoxy (meth)acrylate oligomer [hereinafter also referred to as polyfunctional epoxy (meth)acrylate oligomer], and the like. The hard coat layer may contain one or more (meth)acrylic oligomers.
Polyfunctional urethane (meth)acrylate oligomers include a urethanized reaction product of a (meth)acrylate monomer having at least one (meth)acryloyloxy group and hydroxyl group in one molecule and a polyisocyanate; and a urethanized reaction product of an isocyanate compound obtained by reacting with and a (meth)acrylate monomer having at least one (meth)acryloyloxy group and hydroxyl group in one molecule.

The (meth)acrylate monomers having at least one (meth)acryloyloxy group and hydroxyl group in one molecule used in the urethanization reaction include 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 2-hydroxybutyl (meth)acrylate, 2-hydroxy-3-phenoxypropyl (meth)acrylate, glycerin di(meth)acrylate, trimethylolpropane di(meth)acrylate, pentaerythritol tri(meth)acrylate, dipentaerythritol penta (Meth)acrylates are mentioned.

Polyisocyanates used in the urethanization reaction include hexamethylene diisocyanate, lysine diisocyanate, isophorone diisocyanate, dicyclohexylmethane diisocyanate, tolylene diisocyanate, xylylene diisocyanate, and diisocyanates obtained by hydrogenating aromatic isocyanates among these diisocyanates. (for example, diisocyanates such as hydrogenated tolylene diisocyanate and hydrogenated xylylene diisocyanate), di- or tri-polyisocyanates such as triphenylmethane triisocyanate and dimethylene triphenyl triisocyanate, or polyisocyanates obtained by increasing the amount of diisocyanates. is mentioned.

Polyols used in the urethanization reaction generally include aromatic, aliphatic and alicyclic polyols, as well as polyester polyols and polyether polyols. Aliphatic and cycloaliphatic polyols typically include 1,4-butanediol, 1,6-hexanediol, neopentyl glycol, ethylene glycol, propylene glycol, trimethylolethane, trimethylolpropane, dimethylolheptane, di Methylolpropionic acid, dimethylolbutyric acid, glycerin, hydrogenated bisphenol A and the like.

Polyester polyols include those obtained by a dehydration condensation reaction between the above-described polyols and polycarboxylic acids. Specific compounds of polycarboxylic acids include succinic acid, adipic acid, maleic acid, trimellitic acid, hexahydrophthalic acid, phthalic acid, isophthalic acid, and terephthalic acid. These polycarboxylic acids may be anhydrides. Examples of polyether polyols include polyalkylene glycols as well as polyoxyalkylene-modified polyols obtained by reacting the aforementioned polyols or phenols with alkylene oxides.

A polyfunctional polyester (meth)acrylate oligomer is obtained by a dehydration condensation reaction using (meth)acrylic acid, polycarboxylic acid and polyol. Polycarboxylic acids used in the dehydration condensation reaction include succinic acid, adipic acid, maleic acid, itaconic acid, trimellitic acid, pyromellitic acid, hexahydrophthalic acid, phthalic acid, isophthalic acid and terephthalic acid. These polycarboxylic acids may be anhydrides. Polyols used in the dehydration condensation reaction include 1,4-butanediol, 1,6-hexanediol, diethylene glycol, triethylene glycol, propylene glycol, neopentyl glycol, dimethylolheptane, dimethylolpropionic acid, and dimethylol. butyric acid, trimethylolpropane, ditrimethylolpropane, pentaerythritol, dipentaerythritol and the like.

Polyfunctional epoxy (meth)acrylate oligomers are obtained by an addition reaction between polyglycidyl ether and (meth)acrylic acid. Examples of polyglycidyl ethers include ethylene glycol diglycidyl ether, propylene glycol diglycidyl ether, tripropylene glycol diglycidyl ether, 1,6-hexanediol diglycidyl ether and bisphenol A diglycidyl ether.

The surface modifier used in the present invention is an agent that changes the surface properties of the hard coat layer, such as leveling agents, antistatic agents, surfactants, water and oil repellents, inorganic particles, and organic particles.
Examples of leveling agents include polyether-modified polyalkylsiloxanes, polyether-modified siloxanes, polyester-modified hydroxyl-containing polyalkylsiloxanes, polyether-modified polydimethylsiloxanes having alkyl groups, modified polyethers, silicon-modified acrylics, and the like.

Antistatic agents include, for example, glycerin fatty acid ester monoglyceride, glycerin fatty acid ester organic acid monoglyceride, polyglycerin fatty acid ester, sorbitan fatty acid ester, cationic surfactant, anionic surfactant and the like.
Examples of inorganic particles include silica particles, alumina particles, zirconia particles, silicon particles, silver particles, and glass particles.
Examples of organic particles include acrylic particles and silicon particles.
Surfactants and water and oil repellents include fluorine-containing surfactants such as fluorine-containing group/lipophilic group-containing oligomers and fluorine-containing group/hydrophilic group/lipophilic group/UV reactive group-containing oligomers. and water and oil repellents.

The hard coat layer may contain a photopolymerization initiator. As used herein, a photopolymerization initiator refers to a photoradical generator.

Monofunctional photopolymerization initiators that can be used in the present invention include, for example, 4-(2-hydroxyethoxy)phenyl(2-hydroxy-2-propyl)ketone [Darocur 2959: manufactured by Merck &Co.]; -α,α'-dimethylacetophenone [Darocure 1173: manufactured by Merck &Co.]; acetophenone-based initiators such as methoxyacetophenone, 2,2'-dimethoxy-2-phenylacetophenone [Irgacure-651], 1-hydroxy-cyclohexylphenyl ketone benzoin ether initiators such as benzoin ethyl ether and benzoin isopropyl ether; and halogenated ketones, acylphosphinates, acylphosphonates and the like.

The method for forming the hard coat layer is not particularly limited. For example, the hard coat layer can be formed by applying a hard coat liquid onto a layer located below the hard coat layer and then photopolymerizing the hard coat liquid.

A method for applying the hard coat liquid (polymerizable composition) is not particularly limited, and a known method can be used. Examples include spin coating, dipping, spraying, slide coating, bar coating, roll coating, gravure coating, meniscus coating, flexographic printing, screen printing, beat coating, and picking. .

As a lamp used for light irradiation in photopolymerization, a lamp having a light emission distribution at a light wavelength of 420 nm or less is used, and examples thereof include low pressure mercury lamps, medium pressure mercury lamps, high pressure mercury lamps, ultra high pressure mercury lamps, chemical lamps, and black light lamps. , microwave-excited mercury lamps, metal halide lamps, and the like. Among them, the high-pressure mercury lamp or metal halide lamp efficiently emits light in the active wavelength region of the initiator, and emits short-wave light that reduces the viscoelastic properties of the resulting polymer by crosslinking, and heats the reaction composition. This is preferable because it does not emit a large amount of long-wavelength light that evaporates.

The irradiation intensity of the lamp is a factor that influences the degree of polymerization of the resulting polymer, and is appropriately controlled for each performance of the target product. When a usual cleavage-type initiator having an acetophenone group is blended, the illuminance is preferably in the range of 0.1 to 300 mW/cm ² . In particular, it is preferable to use a metal halide lamp and set the illuminance to 10 to 40 mW/cm ² .

The photopolymerization reaction is inhibited by oxygen in the air or dissolved in the reactive composition. Therefore, it is desirable to carry out light irradiation using a technique that can eliminate reaction inhibition by oxygen. One such method is to cover the reactive composition with a film made of polyethylene terephthalate or Teflon to cut off contact with oxygen, and irradiate the reactive composition with light through the film. Alternatively, the composition may be irradiated with light through a light-transmitting window in an inert atmosphere in which oxygen is replaced with an inert gas such as nitrogen gas or carbon dioxide gas.

When light irradiation is performed in an inert atmosphere, a constant amount of inert gas is always introduced in order to keep the atmosphere oxygen concentration at a low level. By introducing this inert gas, an air current is generated on the surface of the reactive composition, and the monomer vaporizes. In order to suppress the level of monomer evaporation, the air velocity of the inert gas is preferably 1 m/sec or less relative to the laminated body coated with the hard coating liquid moving under the inert gas atmosphere. It is more preferably 0.1 m/sec or less. By setting the airflow velocity within the above range, the evaporation of the monomer due to the airflow is substantially suppressed.

For the purpose of improving the adhesion of the hard coat layer, the surface to be coated may be subjected to pretreatment. Examples of treatment include known methods such as sandblasting, solvent treatment, corona discharge treatment, chromic acid treatment, flame treatment, hot air treatment, ozone treatment, ultraviolet treatment, and primer treatment with a resin composition. mentioned.

The hard coat layer preferably has a pencil hardness of 2H or more when irradiated with UV light (254 nm) using a metal halide lamp with an irradiation output of 20 mW/cm ² .

The film thickness of the hard coat layer is desirably 1 μm or more and 40 μm or less, more desirably 2 μm or more and 10 μm or less. Sufficient hardness can be obtained when the film thickness is 1 μm or more. Moreover, since the film thickness is 40 μm or less, it is possible to suppress the occurrence of cracks during bending. The film thickness of the hard coat layer can be measured by observing the cross section with a microscope or the like and actually measuring from the coating film interface to the surface.

For the purpose of improving the adhesion of the hard coat, the surface to be coated is sometimes pretreated before the hard coat. Examples of treatment include known methods such as sandblasting, solvent treatment, corona discharge treatment, chromic acid treatment, flame treatment, hot air treatment, ozone treatment, ultraviolet treatment, and primer treatment with a resin composition. mentioned.

<Haze>
The resin laminate before having the hard coat layer of the present invention preferably has Haze≦1.0%, more preferably Haze≦0.8%, and particularly preferably Haze≦0.7%. If the haze exceeds 1.0%, the resin laminate may appear whitish to the naked eye.

<Resin laminate>
In the present invention, the thickness of the layer containing the thermoplastic resin (B) affects the surface hardness and impact resistance of the resin laminate. In other words, if the thickness of the layer containing the thermoplastic resin (B) is too thin, the surface hardness will be low, which is not preferable. If the thickness of the layer containing the thermoplastic resin (B) is too large, the impact resistance will deteriorate, which is not preferred. The thickness of the layer containing the thermoplastic resin (B) is preferably 10-250 μm, more preferably 20-200 μm. More preferably, it is 30 to 150 μm.

In the present invention, if the total thickness of the layer containing the polycarbonate resin (A), the layer containing the thermoplastic resin (B) and the hard coat layer is too thin or too thick, molding will be difficult. The overall thickness of the resin laminate is preferably 0.4 to 4.0 mm, more preferably 0.5 to 3.5 mm, still more preferably 0.5 to 3.0 mm.

In the present invention, the difference in refractive index between the polycarbonate resin (A) and the thermoplastic resin (B) is preferably in the range of 0 to 0.07, more preferably in the range of 0 to 0.06. More preferably, it is in the range of 0 to 0.05. When the refractive index difference between the polycarbonate resin (A) and the thermoplastic resin (B) is greater than 0.07, the reflected light intensity at the interface between the layer containing the polycarbonate resin (A) and the layer containing the thermoplastic resin (B) is large, and problems such as interference fringes may occur.

One or more of anti-fingerprint treatment, antireflection treatment, antifouling treatment, antistatic treatment, weather resistance treatment and antiglare treatment can be applied to one or both surfaces of the resin laminate of the present invention. Methods for antireflection treatment, antifouling treatment, antistatic treatment, weather resistance treatment and antiglare treatment are not particularly limited, and known methods can be used. For example, a method of applying a reflection-reducing paint, a method of vapor-depositing a dielectric thin film, a method of applying an antistatic paint, and the like can be used.

<Optional additives>
In the present invention, the polycarbonate-based resin (A) forming the substrate layer and/or the thermoplastic resin (B) forming the surface layer may contain components other than the main components described above.

For example, the polycarbonate resin (A) and/or the thermoplastic resin (B) may be mixed with an ultraviolet absorbent. In addition, in the present invention, the hard coat layer may contain an ultraviolet absorber. If the content of the ultraviolet absorber is too high, depending on the molding method, the excess ultraviolet absorber may scatter due to the high temperature, contaminating the molding environment and causing problems. For this reason, the content of the ultraviolet absorber is preferably 0 to 5% by mass, more preferably 0 to 3% by mass, and still more preferably 0 to 1% by mass. UV absorbers include, for example, 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-n-octoxybenzophenone, 2-hydroxy-4-dodecyloxybenzophenone, 2-hydroxy -4-octadecyloxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2,2',4,4'-tetrahydroxybenzophenone, etc. Benzophenone UV absorbers, 2-(2-hydroxy-5-methylphenyl)benzotriazole, 2-(2-hydroxy-3,5-di-t-butylphenyl)benzotriazole, 2-(2-hydroxy-3 -t-butyl-5-methylphenyl)benzotriazole, (2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol and other benzotriazole UV absorbers, salicylic acid Benzoate UV absorbers such as phenyl, 2,4-di-t-butylphenyl-3,5-di-t-butyl-4-hydroxybenzoate, bis(2,2,6,6-tetramethylpiperidine-4 -yl) hindered amine UV absorbers such as sebacate, 2,4-diphenyl-6-(2-hydroxy-4-methoxyphenyl)-1,3,5-triazine, 2,4-diphenyl-6-(2- hydroxy-4-ethoxyphenyl)-1,3,5-triazine, 2,4-diphenyl-(2-hydroxy-4-propoxyphenyl)-1,3,5-triazine, 2,4-diphenyl-(2- hydroxy-4-butoxyphenyl)1,3,5-triazine, 2,4-diphenyl-6-(2-hydroxy-4-butoxyphenyl)-1,3,5-triazine, 2,4-diphenyl-6- (2-hydroxy-4-hexyloxyphenyl)-1,3,5-triazine, 2,4-diphenyl-6-(2-hydroxy-4-octyloxyphenyl)-1,3,5-triazine, 2, 4-diphenyl-6-(2-hydroxy-4-dodecyloxyphenyl)-1,3,5-triazine, 2,4-diphenyl-6-(2-hydroxy-4-benzyloxyphenyl)-1,3, triazine-based UV absorbers such as 5-triazine, 2-[2-(6-hydroxybenzo[1,3]dioxol-5-yl)-2H-benzotriazol-5-yl]ethyl methacrylate, 2-[2- (6-Hydroxybenzo[1,3]dioxol-5-yl)-2H-benzotriazol-5-yl]ethyl acrylate, 3-[2-(6-hydroxybenzo[1,3]dioxol-5-yl) -2H-benzotriazol-5-yl]propyl methacrylate, 3-[2-(6-hydroxybenzo[1,3]dioxol-5-yl)-2H-benzotriazol-5-yl]propyl acrylate, 4-[ 2-(6-hydroxybenzo[1,3]dioxol-5-yl)-2H-benzotriazol-5-yl]butyl methacrylate, 4-[2-(6-hydroxybenzo[1,3]dioxol-5- yl)-2H-benzotriazol-5-yl]butyl acrylate, 2-[2-(6-hydroxybenzo[1,3]dioxol-5-yl)-2H-benzotriazol-5-yloxy]ethyl methacrylate, 2 -[2-(6-hydroxybenzo[1,3]dioxol-5-yl)-2H-benzotriazol-5-yloxy]ethyl acrylate, 2-[3-{2-(6-hydroxybenzo[1,3 ]dioxol-5-yl)-2H-benzotriazol-5-yl}propanoyloxy]ethyl methacrylate, 2-[3-{2-(6-hydroxybenzo[1,3]dioxol-5-yl)-2H -benzotriazol-5-yl}propanoyloxy]ethyl acrylate, 4-[3-{2-(6-hydroxybenzo[1,3]dioxol-5-yl)-2H-benzotriazol-5-yl}propane noyloxy]butyl methacrylate, 4-[3-{2-(6-hydroxybenzo[1,3]dioxol-5-yl)-2H-benzotriazol-5-yl}propanoyloxy]butyl acrylate, 2-[ 3-{2-(6-hydroxybenzo[1,3]dioxol-5-yl)-2H-benzotriazol-5-yl}propanoyloxy]ethyl methacrylate, 2-[3-{2-(6-hydroxy benzo[1,3]dioxol-5-yl)-2H-benzotriazol-5-yl}propanoyloxy]ethyl acrylate, 2-(methacryloyloxy)ethyl 2-(6-hydroxybenzo[1,3]dioxole- 5-yl)-2H-benzotriazole-5 carboxylate, 2-(acryloyloxy)ethyl 2-(6-hydroxybenzo[1,3]dioxol-5-yl)-2H-benzotriazole-5-carboxylate, 4-(methacryloyloxy)butyl 2-(6-hydroxybenzo[1,3]dioxol-5-yl)-2H-benzotriazole-5-carboxylate, 4-(acryloyloxy)butyl 2-(6-hydroxybenzo [1,3]dioxol-5-yl)-2H-benzotriazole-5-carboxylate and other sesamol-type benzotriazole ultraviolet absorbers. The mixing method is not particularly limited, and a method of compounding the entire amount, a method of dry blending the masterbatch, a method of dry blending the entire amount, and the like can be used.

In the present invention, the polycarbonate-based resin (A) forming the substrate layer and/or the thermoplastic resin (B) forming the surface layer may be mixed with various additives in addition to the above ultraviolet absorbers. can be done. Such additives include, for example, antioxidants, anti-colorants, antistatic agents, release agents, lubricants, dyes, pigments, plasticizers, flame retardants, resin modifiers, compatibilizers, organic fillers, Examples include reinforcing materials such as inorganic fillers. The mixing method is not particularly limited, and a method of compounding the entire amount, a method of dry blending the masterbatch, a method of dry blending the entire amount, and the like can be used.

Each material of the layer containing the polycarbonate resin (A), the layer containing the thermoplastic resin (B) and the hard coat layer in the present invention, for example, the polycarbonate resin (A) and the thermoplastic resin (B) are filtered. It is preferably filtered and purified by By forming or laminating through a filter, it is possible to obtain a resin laminate with less appearance defects such as foreign matter and defects. The filtration method is not particularly limited, and melt filtration, solution filtration, or a combination thereof can be used.

The filter to be used is not particularly limited, and a known one can be used, and is appropriately selected according to the use temperature, viscosity and filtration accuracy of each material. The filter material of the filter is not particularly limited, but may be polypropylene, cotton, polyester, viscose rayon or glass fiber nonwoven fabric or roving yarn roll, phenolic resin impregnated cellulose, metal fiber nonwoven fabric sintered body, metal powder sintered body, breaker plate, Alternatively, any combination thereof can be used. In particular, considering heat resistance, durability, and pressure resistance, a type obtained by sintering metal fiber nonwoven fabric is preferable.

The filtration accuracy is 50 µm or less, preferably 30 µm or less, and more preferably 10 µm or less for polycarbonate resin (A) and thermoplastic resin (B). In addition, the filtration accuracy of the hard coating agent is 20 μm or less, preferably 10 μm or less, more preferably 2 μm or less, because it is applied to the outermost layer of the resin laminate.

For filtering the polycarbonate-based resin (A) and the thermoplastic resin (B), it is preferable to use a polymer filter that is used, for example, for thermoplastic resin melt filtration. Polymer filters are classified into leaf disk filters, candle filters, pack disk filters, cylindrical filters, etc., depending on their structure, and leaf disk filters are particularly suitable because they have a large effective filtration area.

<Thermal bending>
The thermal bending of the resin laminate of the present invention is not particularly limited. For example, "hot press molding" is performed by attaching a convex (male) mold and a concave (female) mold to a pressing machine and sandwiching a heat-softened laminated sheet between the two molds. "Vacuum forming" is a method in which the laminated sheet is brought into close contact with the mold by putting the (male) mold into a vacuum state, and the desired shape is finished. There is "compressed air molding" in which a laminated sheet is brought into close contact with a mold by applying a large amount of pressure to finish it into the desired shape.

<Thermoformed body>
A resin laminate having a layer containing a thermoplastic resin on a layer containing a polycarbonate resin and a hard coat layer on the surface of the layer containing the thermoplastic resin is heat-press molded at a low temperature of 120 ° C. to 130 ° C. If this is done, cracks may occur in the bent portion of the resin laminate.

On the other hand, since the resin laminate of the embodiment of the present invention uses a specific thermoplastic resin (B), when thermal bending is performed at a low temperature (for example, 120 to 130 ° C.), bending of the resin laminate It is possible to obtain a thermoformed article with excellent design properties at low temperatures without cracks occurring in the part.

<Application>
A molded article (for example, a thermoformed article) of the embodiment is a molded article including the resin laminate of the present invention including the various preferred forms and configurations described above. The shape, pattern, color, size, etc. of the molded product are not limited and may be arbitrarily set according to the application.
The resin laminates and thermoformed articles of the embodiments are excellent in thermoformability at low temperatures (for example, 120 to 130° C.) and can suppress the generation of interference fringes. Therefore, it can be suitably used as a transparent substrate material, a transparent protective material, and the like. Specifically, portable display devices such as mobile phone terminals, portable electronic playground equipment, personal digital assistants, and mobile PCs, and stationary display devices such as notebook PCs, desktop PC liquid crystal monitors, car navigation liquid crystal monitors, and liquid crystal televisions. It can be used as a transparent substrate material and a transparent protective material (for example, a front plate) such as, among others, a touch panel front protective plate that requires high designability, for car navigation, for OA equipment, or for portable electronic equipment. Suitable for use as a face plate.

EXAMPLES The present embodiment will be described in more detail below with reference to Examples, but the present embodiment is not limited to these Examples.

<Composition ratio of monomer units in styrene copolymer>
It was calculated from the measured values of ¹ H-NMR and ¹³ C-NMR (400 MHz, solvent: CDCl ₃ ) using JNM-AL400 manufactured by JEOL Ltd.

<Glass transition temperature>
A differential scanning calorimeter DSC6200 manufactured by Seiko Instruments Inc. was used. 30 ml/min of nitrogen flow, 10°C/min. from 30° C. to 200° C., then at 50° C./min. from 200° C. to 30° C., and again at 10° C./min. was raised from 30°C to 200°C. The intersection point of the baseline and the tangent line at the point of inflection in the second heating was used as the glass transition temperature.

<Appearance of pellet>
At the time of pellet production, the pellet appearance was visually evaluated. Appearance of the pellet was judged according to the following criteria, and ◯ was regarded as passed.
○: Transparent ×: Translucent or cloudy

<Refractive index>
A test piece was prepared by an injection molding machine and cut into a length of 40 mm, a width of 10 mm and a thickness of 3 mm. The refractive index of this sample was measured with a multi-wavelength Abbe refractometer DR-M2 manufactured by Atago Co., Ltd. The measurement temperature was 20° C., the measurement wavelength was 589 nm, and monobromonaphthalene was used as the intermediate liquid.

<Total light transmittance>
Using a reflection/transmittance meter HR-100 (manufactured by Murakami Color Research Laboratory), the total light transmittance of the resin laminate was measured according to JIS K7361-1.

<Haze>
The haze of the resin laminate was measured according to JIS K7136 using a reflection/transmittance meter HR-100 (manufactured by Murakami Color Research Laboratory).

<Pencil hardness>
In accordance with JIS K 5600-5-4, the angle with respect to the surface of the layer containing the thermoplastic resin (B) near the center of the resin laminate or the surface of the hard coat layer on the layer containing the thermoplastic resin (B) A pencil was pressed against the surface at 45 degrees and a load of 750 g with gradually increasing hardness, and the hardness of the hardest pencil that did not leave a scar was evaluated as the pencil hardness.

<Interference fringes>
A black tape (black vinyl tape model number 117BLA manufactured by 3M Japan Co., Ltd.) is attached to the layer side containing the polycarbonate resin (A) or the layer side containing the thermoplastic resin (B) of the resin laminate, and the thermoplastic resin (B ) was illuminated from the surface with a three-wavelength fluorescent lamp (Technica Inverter Light 60 AL-60231) to evaluate the interference fringes. Interference fringes were evaluated according to the following criteria, and ◯ was regarded as a pass.
○: No interference fringes visible or weak interference fringes ×: Strong interference fringes visible

<Heat press molding processability>
A convex type (male type) and a concave type (female type) were produced in which a 1 mmt resin laminate is bent to a radius of 50 mm. The resin laminate was preheated at 90°C for 1 minute before molding, and placed in a mold so that the surface of the thermoplastic resin (B) was convex before the hard coat was applied and the hard coat surface was convex after the hard coat was applied. , press at a mold temperature of 120°C for 3 minutes, and cool naturally to prepare a hot-press molded product.

<Cracks in bent parts>
Cracks in the bent portion of the hot press molded body were visually evaluated. Cracks in the bent portion were judged according to the following criteria, and ◯ was regarded as passed.
○: Cracks are not visible in the bent portion of the hot-press molded body ×: Cracks are visible in the bent portion of the hot-press molded body

For Examples, polycarbonate resin (A-1), thermoplastic resins (B-1) to (B-4), methacrylic resins (C-1) to (C-2), styrene copolymer (D -1) and hard coat (J-1), the materials shown below were used, but are not limited to these. On the other hand, for comparative examples, thermoplastic resins (G-1) to (G-16), styrene copolymers (E-1) to (E-2), and thermoplastic resins before hard coating are shown below. Resins (I-1) to (I-30) and thermoplastic resins (L-1) to (L-30) after hard coating were used.

<Polycarbonate resin (A-1), methacrylic resin (C-1) to (C-2), styrene copolymer (D-1), and styrene copolymer (E-1) to (E-2) ＞
Polycarbonate resin (A-1): Mitsubishi Engineering-Plastics Co., Ltd. Iupilon S-1000 (weight average molecular weight: 33,000, glass transition temperature: 147 ° C., temperature 300 ° C., melt flow rate under 1.2 kg load: 7.5 g/10 minutes, refractive index 1.59)
Methacrylic resin (C-1): ALTUGLAS (registered trademark) V020 manufactured by Arkema Co., Ltd. (weight average molecular weight: 127,000, glass transition temperature: 109°C, temperature: 230°C, melt flow rate under 3.8 kg load: 1. 8 g/10 min, methyl methacrylate/methyl acrylate = 95.5 mol%/4.5 mol%, refractive index 1.49, mm/mr/rr = 7.4 mol%/37.4 mol%/55 .2 mol %)
Methacrylic resin (C-2): ALTUGLAS (registered trademark) V040 manufactured by Arkema Co., Ltd. (weight average molecular weight: 84,100, glass transition temperature: 111°C, temperature: 230°C, melt flow rate under 3.8 kg load: 3. 5 g/10 min, methyl methacrylate/methyl acrylate = 98.3 mol%/1.7 mol%, refractive index 1.49)
Styrene copolymer (D-1): XIBOND160 manufactured by Polyscope ((d1)/(d2) = styrene/maleic anhydride = 78 mass%/22 mass%, weight average molecular weight: 69,500, glass transition temperature: 143 ° C., temperature 230 ° C., melt flow rate under 3.8 kg load: 7.6 g / 10 minutes, refractive index 1.58)
Styrene copolymer (E-1): XIBOND140 manufactured by Polyscope ((d1)/(d2) = styrene/maleic anhydride = 85 mass%/15 mass%, weight average molecular weight: 134,000, glass transition temperature: 129 ° C., temperature 230 ° C., melt flow rate under 3.8 kg load: 6.9 g / 10 min, refractive index 1.59)
Styrene copolymer (E-2): XIBOND180 manufactured by Polyscope ((d1)/(d2) = styrene/maleic anhydride = 67 mass%/33 mass%, weight average molecular weight: 50,100, glass transition temperature: 157 ° C., temperature 230 ° C., melt flow rate under 3.8 kg load: 1.0 g / 10 minutes, refractive index 1.59)

Synthesis Example 1 [Production of methacrylic resin (F-1)]
As monomer components, purified methyl methacrylate (manufactured by Mitsubishi Gas Chemical Co., Ltd.) 75.000 mol%, and purified styrene (manufactured by Wako Pure Chemical Industries, Ltd.) 24.998 mol%, and t- amyl peroxy as a polymerization initiator -A monomer composition containing 0.002 mol% of 2-ethylhexanoate (manufactured by Arkema Yoshitomi Co., Ltd., trade name: Luperox 575) was continuously supplied at 1 kg/h to a 10 L complete mixing tank with helical ribbon blades, Continuous polymerization was carried out at an average residence time of 2.5 hours and a polymerization temperature of 150°C. The polymer was continuously withdrawn from the bottom so that the liquid level of the polymerization vessel was constant, and introduced into a solvent removal apparatus to obtain a copolymer in the form of pellets. The ratio of (meth)acrylic acid ester monomer units derived from methyl methacrylate in the obtained copolymer was 73 mol %. Also, the weight average molecular weight (converted to standard polystyrene) measured by gel permeation chromatography was 124,000. This copolymer was dissolved in methyl isobutyrate (manufactured by Kanto Kagaku Co., Ltd.) to prepare a 10% by mass methyl isobutyrate solution. A 1000 mL autoclave apparatus was charged with 500 parts by mass of a 10% by mass methyl isobutyrate solution of this copolymer and 1 part by mass of 10% by mass Pd/C (manufactured by NE Chemcat) as a hydrogenation catalyst, hydrogen pressure 9 MPa, 200 ° C. for 15 hours to hydrogenate the aromatic double bond of the styrene portion of the copolymer. The hydrogenation reaction rate of the styrene site was 99%. Further, in the obtained methacrylic resin (F-1), the ratio of structural units derived from methyl methacrylate was 73 mol%, and the methacrylic resin (F-1) had a glass transition temperature of 116°C and a refractive index of 1.49. Met.

Production Example 1A [Production of pellets of thermoplastic resin (B-1)]
50 parts by mass of methacrylic resin (C-1) and 50 parts by mass of styrene copolymer (D-1) for a total of 100 parts by mass, phosphorus-based additive PEP-36 (manufactured by ADEKA Co., Ltd.) 500 ppm, And stearic acid monoglyceride (product name: H-100, manufactured by Riken Vitamin Co., Ltd.) 0.2% by mass was added, mixed in a blender for 20 minutes, and then a twin-screw extruder with a screw diameter of 26 mm equipped with a polymer filter with an opening of 10 μm. (manufactured by Toshiba Machine Co., Ltd., TEM-26SS, L/D≈40), the mixture was melt-kneaded at a cylinder temperature of 240° C., extruded into strands, and pelletized with a pelletizer. Pellets of the thermoplastic resin (B-1) could be stably produced.
Pellets of thermoplastic resin (B-1) have an appearance of ◯ (transparent), a glass transition temperature of 121° C., a melt flow rate of 230° C. under a load of 3.8 kg, and a refractive index of 2.5 g/10 min. was 1.54.

Production Example 2A [Production of pellets of thermoplastic resin (B-2)]
25 parts by mass of the methacrylic resin (C-1) and 75 parts by mass of the styrene copolymer (D-1), for a total of 100 parts by mass, 500 ppm of the phosphorus-based additive PEP-36 and 0.5 parts of stearic acid monoglyceride. 2% by mass was added and mixed and pelletized in the same manner as in Production Example 1A. Pellets of the thermoplastic resin (B-2) could be stably produced.
Pellets of thermoplastic resin (B-2) have an appearance of ◯ (transparent), a glass transition temperature of 132° C., a melt flow rate of 230° C. under a load of 3.8 kg, and a refractive index of 3.5 g/10 min. was 1.56.

Production Example 3A [Production of pellets of thermoplastic resin (B-3)]
50 parts by mass of methacrylic resin (C-2) and 50 parts by mass of styrene copolymer (D-1), for a total of 100 parts by mass, 500 ppm of phosphorus-based additive PEP-36 and 0.00 ppm of stearic acid monoglyceride. 2% by mass was added and mixed and pelletized in the same manner as in Production Example 1A. Pellets of the thermoplastic resin (B-3) could be stably produced.
Pellets of thermoplastic resin (B-3) have an appearance of ◯ (transparent), a glass transition temperature of 125° C., a melt flow rate of 230° C. under a load of 3.8 kg, and a refractive index of 4.0 g/10 min. was 1.54.

Production Example 4A [Production of pellets of thermoplastic resin (B-4)]
25 parts by mass of the methacrylic resin (C-2) and 75 parts by mass of the styrene copolymer (D-1), for a total of 100 parts by mass, 500 ppm of the phosphorus-based additive PEP-36, and 0.5 parts by mass of stearic acid monoglyceride. 2% by mass was added and mixed and pelletized in the same manner as in Production Example 1A. Pellets of the thermoplastic resin (B-4) could be stably produced.
Pellets of thermoplastic resin (B-4) have an appearance of ◯ (transparent), a glass transition temperature of 136° C., a melt flow rate of 230° C. under a load of 3.8 kg, and a refractive index of 4.6 g/10 min. was 1.56.

Comparative Production Example 1A [Production of pellets of thermoplastic resin (G-1)]
75 parts by mass of the methacrylic resin (C-1) and 25 parts by mass of the styrene copolymer (D-1), for a total of 100 parts by mass, were added with 500 ppm of the phosphorus additive PEP-36 and 0.5 parts by mass of stearic acid monoglyceride. 2% by mass was added and mixed and pelletized in the same manner as in Production Example 1A. Pellets of the thermoplastic resin (G-1) could be stably produced.
Pellets of thermoplastic resin (G-1) have an appearance of ◯ (transparent), a glass transition temperature of 113° C., a melt flow rate of 230° C. under a load of 3.8 kg, and a refractive index of 2.0 g/10 min. was 1.51.

Comparative Production Example 2A [Production of pellets of thermoplastic resin (G-2)]
75 parts by mass of the methacrylic resin (C-2) and 25 parts by mass of the styrene copolymer (D-1), for a total of 100 parts by mass, 500 ppm of the phosphorus additive PEP-36 and 0.5 parts of stearic acid monoglyceride. 2% by mass was added and mixed and pelletized in the same manner as in Production Example 1A. Pellets of the thermoplastic resin (G-2) could be stably produced.
Pellets of thermoplastic resin (G-2) have an appearance of ◯ (transparent), a glass transition temperature of 117° C., a melt flow rate of 230° C. under a load of 3.8 kg, and a refractive index of 3.7 g/10 min. was 1.51.

Comparative Production Example 3A [Pellet production of thermoplastic resin (G-3)]
Phosphorus-based additive PEP-36 500 ppm and stearic acid monoglyceride 0.2% by mass were added to 100 parts by mass of methacrylic resin (C-1), and mixed and pelletized in the same manner as in Production Example 1A. Pellets of the thermoplastic resin (G-3) could be stably produced.
Pellets of thermoplastic resin (G-3) have an appearance of ◯ (transparent), a glass transition temperature of 109° C., a melt flow rate of 230° C. under a load of 3.8 kg: 1.8 g/10 min, and a refractive index. was 1.49.

Comparative Production Example 4A [Production of pellets of thermoplastic resin (G-4)]
Phosphorus-based additive PEP-36 500 ppm and stearic acid monoglyceride 0.2% by mass were added to 100 parts by mass of methacrylic resin (C-2), and mixed and pelletized in the same manner as in Production Example 1A. Pellets of thermoplastic resin (G-4) could be stably produced.
Pellets of thermoplastic resin (G-4) have an appearance of ◯ (transparent), a glass transition temperature of 111° C., a melt flow rate of 230° C. under a load of 3.8 kg, and a refractive index of 3.5 g/10 min. was 1.49.

Comparative Production Example 5A [Production of pellets of thermoplastic resin (G-5)]
Phosphorus-based additive PEP-36 500 ppm and stearic acid monoglyceride 0.2% by mass were added to 100 parts by mass of the styrene copolymer (D-1), and mixed and pelletized in the same manner as in Production Example 1A. rice field. Pellets of thermoplastic resin (G-5) could be stably produced.
Pellets of thermoplastic resin (G-5) have an appearance of ◯ (transparent), a glass transition temperature of 143° C., a melt flow rate of 230° C. under a load of 3.8 kg, and a refractive index of 7.6 g/10 min. was 1.58.

Comparative Production Example 6A [Pellet production of thermoplastic resin (G-6)]
50 parts by mass of the methacrylic resin (C-1) and 50 parts by mass of the styrene copolymer (E-1), for a total of 100 parts by mass, 500 ppm of the phosphorus additive PEP-36 and 0.00 ppm of the stearic acid monoglyceride. 2% by mass was added and mixed and pelletized in the same manner as in Production Example 1A. Pellets of thermoplastic resin (G-6) could be stably produced.
Pellets of thermoplastic resin (G-6) had an appearance of × (translucent).

Comparative Production Example 7A [Production of pellets of thermoplastic resin (G-7)]
50 parts by weight of the methacrylic resin (C-2) and 50 parts by weight of the styrene copolymer (E-1), 500 ppm of the phosphorus-based additive PEP-36 and 0.5 parts by weight of the stearic acid monoglyceride. 2% by mass was added and mixed and pelletized in the same manner as in Production Example 1A. Pellets of thermoplastic resin (G-7) could be stably produced.
Pellets of thermoplastic resin (G-7) had an appearance of × (translucent).

Comparative Production Example 8A [Production of pellets of thermoplastic resin (G-8)]
50 parts by mass of methacrylic resin (C-1) and 50 parts by mass of styrene copolymer (E-2), for a total of 100 parts by mass, 500 ppm of phosphorus-based additive PEP-36, and 0.5 parts by mass of stearic acid monoglyceride. 2% by mass was added and mixed and pelletized in the same manner as in Production Example 1A. Pellets of thermoplastic resin (G-8) could be stably produced.
Pellets of thermoplastic resin (G-8) had an appearance of × (white turbidity).

Comparative Production Example 9A [Production of pellets of thermoplastic resin (G-9)]
50 parts by weight of methacrylic resin (C-2) and 50 parts by weight of styrene copolymer (E-2), for a total of 100 parts by weight, 500 ppm of phosphorus-based additive PEP-36, and 0.5 parts by weight of stearic acid monoglyceride. 2% by mass was added and mixed and pelletized in the same manner as in Production Example 1A. Pellets of thermoplastic resin (G-9) could be stably produced.
Pellets of thermoplastic resin (G-9) had an appearance of × (white turbidity).

Comparative Production Example 10A [Production of pellets of thermoplastic resin (G-10)]
50 parts by mass of methacrylic resin (F-1) and 50 parts by mass of styrene copolymer (D-1), for a total of 100 parts by mass, 500 ppm of phosphorus-based additive PEP-36, and 0.5 parts by mass of stearic acid monoglyceride. 2% by mass was added and mixed and pelletized in the same manner as in Production Example 1A. Pellets of thermoplastic resin (G-10) could be stably produced.
Pellets of thermoplastic resin (G-10) had an appearance of × (white turbidity).

Comparative Production Example 11A [Production of pellets of thermoplastic resin (G-11)]
75 parts by mass of the methacrylic resin (F-1) and 25 parts by mass of the styrene copolymer (E-1), for a total of 100 parts by mass, 500 ppm of the phosphorus-based additive PEP-36, and 0.5 parts by mass of stearic acid monoglyceride. 2% by mass was added and mixed and pelletized in the same manner as in Production Example 1A. Pellets of thermoplastic resin (G-11) could be stably produced.
Pellets of the thermoplastic resin (G-11) had an appearance of ◯ (transparent), a glass transition temperature of 128° C., and a refractive index of 1.52.

Comparative Production Example 12A [Production of pellets of thermoplastic resin (G-12)]
50 parts by mass of methacrylic resin (F-1) and 50 parts by mass of styrene copolymer (E-1), for a total of 100 parts by mass, 500 ppm of phosphorus-based additive PEP-36, and 0.5 parts of stearic acid monoglyceride. 2% by mass was added and mixed and pelletized in the same manner as in Production Example 1A. Pellets of thermoplastic resin (G-12) could be stably produced.
Pellets of the thermoplastic resin (G-12) had an appearance of ◯ (transparent), a glass transition temperature of 121° C., and a refractive index of 1.54.

Comparative Production Example 13A [Production of pellets of thermoplastic resin (G-13)]
25 parts by mass of methacrylic resin (F-1) and 75 parts by mass of styrene copolymer (E-1), for a total of 100 parts by mass, 500 ppm of phosphorus-based additive PEP-36, and 0.5 parts by mass of stearic acid monoglyceride. 2% by mass was added and mixed and pelletized in the same manner as in Production Example 1A. Pellets of thermoplastic resin (G-13) could be stably produced.
Pellets of the thermoplastic resin (G-13) had an appearance of ◯ (transparent), a glass transition temperature of 119° C., and a refractive index of 1.57.

Comparative Production Example 14A [Production of pellets of thermoplastic resin (G-14)]
50 parts by mass of methacrylic resin (F-1) and 50 parts by mass of styrene copolymer (E-2), for a total of 100 parts by mass, 500 ppm of phosphorus-based additive PEP-36, and 0.5 parts by mass of stearic acid monoglyceride. 2% by mass was added and mixed and pelletized in the same manner as in Production Example 1A. Pellets of thermoplastic resin (G-14) could be stably produced.
Pellets of thermoplastic resin (G-14) had an appearance of × (white turbidity).

Comparative Production Example 15A [Production of pellets of thermoplastic resin (G-15)]
Phosphorus-based additive PEP-36 500 ppm and stearic acid monoglyceride 0.2% by mass were added to 100 parts by mass of the styrene copolymer (E-1), and mixed and pelletized in the same manner as in Production Example 1A. rice field. Pellets of thermoplastic resin (G-15) could be stably produced.
Pellets of thermoplastic resin (G-5) had an appearance of ◯ (transparent), a glass transition temperature of 129° C., and a refractive index of 1.59.

Comparative Production Example 16A [Production of pellets of thermoplastic resin (G-16)]
Phosphorus-based additive PEP-36 500 ppm and stearic acid monoglyceride 0.2% by mass were added to 100 parts by mass of methacrylic resin (F-1), and the mixture was mixed and pelletized in the same manner as in Production Example 1A. Pellets of thermoplastic resin (G-16) could be stably produced.
Pellets of the thermoplastic resin (G-16) had an appearance of ◯ (transparent), a glass transition temperature of 116° C., and a refractive index of 1.49.

Production Example 1B [Production of resin laminate (H-1)]
A multi-layer extruder having a single screw extruder with a shaft diameter of 32 mm, a single screw extruder with a shaft diameter of 65 mm, a feed block connected to all the extruders, and a T-die of 650 mm width connected to the feed block. A multilayer extrusion apparatus having a multi-manifold die coupled to the extruder was used to form the resin laminate. The thermoplastic resin (B-1) obtained in Production Example 1A was continuously introduced into a single-screw extruder with a shaft diameter of 32 mm, and extruded under conditions of a cylinder temperature of 240° C. and a discharge rate of 2.0 kg/h. Further, the polycarbonate resin (A-1) was continuously introduced into a single-screw extruder with a shaft diameter of 65 mm, and extruded at a cylinder temperature of 280° C. and a discharge rate of 31.8 kg/h. A feed block connected to all the extruders was equipped with a distribution pin of two types and two layers, and the temperature was set to 270° C., and the thermoplastic resin (B-1) and the polycarbonate resin (A-1) were introduced and laminated.
It is extruded into a sheet form with a T-die connected to the end at a temperature of 270°C, and cooled while transferring the mirror surface with three mirror-finishing rolls set at temperatures of 130°C, 140°C, and 180°C from the upstream side to form a thermoplastic resin. A resin laminate (H-1) of (B-1) and polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the resulting resin laminate (H-1) was 1000 μm, and the thickness of the surface layer (the layer containing the thermoplastic resin (B)) was 60 μm. This resin laminate (H-1) has a total light transmittance of 90.9%, a haze of 0.3%, a pencil hardness of H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Example 2B [Production of resin laminate (H-2)]
The resin laminate of Production Example 1B (H A resin laminate (H-2) of a thermoplastic resin (B-1) and a polycarbonate resin (A-1) was obtained in the same manner as in -1). The overall thickness of the central portion of the obtained resin laminate (H-2) was 1000 μm, and the surface layer thickness was 100 μm. This resin laminate (H-2) has a total light transmittance of 90.9%, a haze of 0.5%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Example 3B [Production of resin laminate (H-3)]
The discharge rate of the single screw extruder with a shaft diameter of 32 mm was changed to 3.9 kg / h, and the discharge rate of the single screw extruder with a shaft diameter of 65 mm was changed to 28.1 kg / h. The resin laminate of Production Example 1B (H- A resin laminate (H-3) of a thermoplastic resin (B-1) and a polycarbonate resin (A-1) was obtained in the same manner as in 1). The overall thickness of the central portion of the obtained resin laminate (H-3) was 1000 μm, and the surface layer thicknesses were 60 μm and 60 μm. This resin laminate (H-3) has a total light transmittance of 90.9%, a haze of 0.5%, a pencil hardness of H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Example 4B [Production of resin laminate (H-4)]
The thermoplastic resin (B-2) was prepared in the same manner as the resin laminate (H-1) of Production Example 1B, except that the thermoplastic resin (B-2) was used instead of the thermoplastic resin (B-1). A resin laminate (H-4) of the polycarbonate resin (A-1) was obtained. The resulting resin laminate (H-4) had an overall thickness of 1000 μm at the central portion and a surface layer thickness of 60 μm. This resin laminate (H-4) has a total light transmittance of 90.7%, a haze of 0.5%, a pencil hardness of H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Example 5B [Production of resin laminate (H-5)]
The thermoplastic resin (B-2) was prepared in the same manner as the resin laminate (H-2) of Production Example 2B, except that the thermoplastic resin (B-2) was used instead of the thermoplastic resin (B-1). A resin laminate (H-5) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the resulting resin laminate (H-5) was 1000 μm, and the surface layer thickness was 100 μm. This resin laminate (H-5) has a total light transmittance of 90.5%, a haze of 0.6%, a pencil hardness of H, interference fringes of ◯, and cracks in the bending portion of heat press molding processability of ◯. there were.

Production Example 6B [Production of resin laminate (H-6)]
The thermoplastic resin (B-2) was prepared in the same manner as the resin laminate (H-3) of Production Example 3B, except that the thermoplastic resin (B-2) was used instead of the thermoplastic resin (B-1). A resin laminate (H-6) of the polycarbonate resin (A-1) was obtained. The total thickness of the central portion of the obtained resin laminate (H-6) was 1000 μm, and the surface layer thicknesses were 60 μm and 60 μm. This resin laminate (H-6) had a total light transmittance of 90.5%, a haze of 0.6%, a pencil hardness of H, an interference fringe of ◯, and cracks in the bent portion of heat press molding processability. .

Production Example 7B [Production of resin laminate (H-7)]
The thermoplastic resin (B-3) was prepared in the same manner as the resin laminate (H-1) of Production Example 1B, except that the thermoplastic resin (B-3) was used instead of the thermoplastic resin (B-1). A resin laminate (H-7) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the resulting resin laminate (H-7) was 1000 μm, and the surface layer thickness was 60 μm. This resin laminate (H-7) had a total light transmittance of 90.9%, a haze of 0.3%, a pencil hardness of H, an interference fringe of ◯, and cracks in the bent portion of heat press molding processability. .

Production Example 8B [Production of resin laminate (H-8)]
The thermoplastic resin (B-3) was prepared in the same manner as the resin laminate (H-2) of Production Example 2B, except that the thermoplastic resin (B-3) was used instead of the thermoplastic resin (B-1). A resin laminate (H-8) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the resulting resin laminate (H-8) was 1000 μm, and the surface layer thickness was 100 μm. This resin laminate (H-8) has a total light transmittance of 90.9%, a haze of 0.5%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Example 9B [Production of resin laminate (H-9)]
The thermoplastic resin (B-3) was prepared in the same manner as the resin laminate (H-3) of Production Example 3B, except that the thermoplastic resin (B-3) was used instead of the thermoplastic resin (B-1). A resin laminate (H-9) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the obtained resin laminate (H-9) was 1000 μm, and the surface layer thicknesses were 60 μm and 60 μm. This resin laminate (H-9) has a total light transmittance of 90.9%, a haze of 0.5%, a pencil hardness of H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Example 10B [Production of resin laminate (H-10)]
The thermoplastic resin (B-4) was prepared in the same manner as the resin laminate (H-1) of Production Example 1B, except that the thermoplastic resin (B-4) was used instead of the thermoplastic resin (B-1). A resin laminate (H-10) of the polycarbonate resin (A-1) was obtained. The resulting resin laminate (H-10) had an overall thickness of 1000 μm at the central portion and a surface layer thickness of 60 μm. This resin laminate (H-10) has a total light transmittance of 90.7%, a haze of 0.5%, a pencil hardness of H, interference fringes of ◯, and cracks in the bending portion of heat press molding processability of ◯. there were.

Production Example 11B [Production of resin laminate (H-11)]
The thermoplastic resin (B-4) was prepared in the same manner as the resin laminate (H-2) of Production Example 2B, except that the thermoplastic resin (B-4) was used instead of the thermoplastic resin (B-1). A resin laminate (H-11) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the resin laminate (H-11) obtained was 1000 μm, and the thickness of the surface layer was 100 μm. This resin laminate (H-11) has a total light transmittance of 90.5%, a haze of 0.6%, a pencil hardness of H, interference fringes of ◯, and cracks in the bending portion of heat press molding processability of ◯. there were.

Production Example 12B [Production of resin laminate (H-12)]
The thermoplastic resin (B-4) was prepared in the same manner as the resin laminate (H-3) of Production Example 3B, except that the thermoplastic resin (B-4) was used instead of the thermoplastic resin (B-1). A resin laminate (H-12) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the obtained resin laminate (H-12) was 1000 μm, and the surface layer thicknesses were 60 μm and 60 μm. This resin laminate (H-12) has a total light transmittance of 90.5%, a haze of 0.6%, a pencil hardness of H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Comparative Example 1B [Production of Resin Laminate (I-1)]
The thermoplastic resin (G-1) was prepared in the same manner as the resin laminate (H-1) of Production Example 1B, except that the thermoplastic resin (G-1) was used instead of the thermoplastic resin (B-1). A resin laminate (I-1) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the obtained resin laminate (I-1) was 1000 μm, and the surface layer thickness was 60 μm. This resin laminate (I-1) has a total light transmittance of 91.2%, a haze of 0.5%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Comparative Example 2B [Production of resin laminate (I-2)]
The thermoplastic resin (G-1) was prepared in the same manner as the resin laminate (H-2) of Production Example 2B, except that the thermoplastic resin (G-1) was used instead of the thermoplastic resin (B-1). A resin laminate (I-2) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the obtained resin laminate (I-2) was 1000 μm, and the surface layer thickness was 100 μm. This resin laminate (I-2) has a total light transmittance of 91.1%, a haze of 0.6%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Comparative Example 3B [Production of Resin Laminate (I-3)]
The thermoplastic resin (G-1) was prepared in the same manner as the resin laminate (H-3) of Production Example 3B, except that the thermoplastic resin (G-1) was used instead of the thermoplastic resin (B-1). A resin laminate (I-3) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the obtained resin laminate (I-3) was 1000 μm, and the surface layer thicknesses were 60 μm and 60 μm. This resin laminate (I-3) has a total light transmittance of 91.1%, a haze of 0.6%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Comparative Example 4B [Production of resin laminate (I-4)]
The thermoplastic resin (G-2) was prepared in the same manner as the resin laminate (H-1) of Production Example 1B, except that the thermoplastic resin (G-2) was used instead of the thermoplastic resin (B-1). A resin laminate (I-4) of the polycarbonate resin (A-1) was obtained. The resulting resin laminate (I-4) had a total central thickness of 1000 μm and a surface layer thickness of 60 μm. This resin laminate (I-4) has a total light transmittance of 91.2%, a haze of 0.5%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bending part of heat press molding processability of ◯. there were.

Production Comparative Example 5B [Production of resin laminate (I-5)]
The thermoplastic resin (G-2) was prepared in the same manner as the resin laminate (H-2) of Production Example 2B, except that the thermoplastic resin (G-2) was used instead of the thermoplastic resin (B-1). A resin laminate (I-5) of the polycarbonate resin (A-1) was obtained. The resulting resin laminate (I-5) had an overall thickness of 1000 μm at the central portion and a surface layer thickness of 100 μm. This resin laminate (I-5) has a total light transmittance of 91.1%, a haze of 0.6%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Comparative Example 6B [Production of resin laminate (I-6)]
The thermoplastic resin (G-2) was prepared in the same manner as the resin laminate (H-3) of Production Example 3B, except that the thermoplastic resin (G-2) was used instead of the thermoplastic resin (B-1). A resin laminate (I-6) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the obtained resin laminate (I-6) was 1000 μm, and the surface layer thicknesses were 60 μm and 60 μm. This resin laminate (I-6) has a total light transmittance of 91.1%, a haze of 0.6%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Comparative Example 7B [Production of resin laminate (I-7)]
The thermoplastic resin (G-3) was prepared in the same manner as the resin laminate (H-1) of Production Example 1B, except that the thermoplastic resin (G-3) was used instead of the thermoplastic resin (B-1). A resin laminate (I-7) of the polycarbonate resin (A-1) was obtained. The resulting resin laminate (I-7) had a total central thickness of 1000 μm and a surface layer thickness of 60 μm. This resin laminate (I-7) has a total light transmittance of 91.6%, a haze of 0.2%, a pencil hardness of 3H, interference fringes of x, and cracks in the bending portion of heat press molding processability of ◯. there were.

Production Comparative Example 8B [Production of resin laminate (I-8)]
The thermoplastic resin (G-3) was prepared in the same manner as the resin laminate (H-2) of Production Example 2B, except that the thermoplastic resin (G-3) was used instead of the thermoplastic resin (B-1). A resin laminate (I-8) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the resulting resin laminate (I-8) was 1000 μm, and the surface layer thickness was 100 μm. This resin laminate (I-8) has a total light transmittance of 91.6%, a haze of 0.2%, a pencil hardness of 3H, interference fringes of x, and cracks in the bending portion of heat press molding processability of ◯. there were.

Production Comparative Example 9B [Production of resin laminate (I-9)]
The thermoplastic resin (G-3) was prepared in the same manner as the resin laminate (H-3) of Production Example 3B, except that the thermoplastic resin (G-3) was used instead of the thermoplastic resin (B-1). A resin laminate (I-9) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the obtained resin laminate (I-9) was 1000 μm, and the surface layer thicknesses were 60 μm and 60 μm. This resin laminate (I-9) has a total light transmittance of 91.6%, a haze of 0.2%, a pencil hardness of 3H, interference fringes of x, and cracks in the bending portion of heat press molding processability of ◯. there were.

Production Comparative Example 10B [Production of Resin Laminate (I-10)]
The thermoplastic resin (G-4) was prepared in the same manner as the resin laminate (H-1) of Production Example 1B, except that the thermoplastic resin (G-4) was used instead of the thermoplastic resin (B-1). A resin laminate (I-10) of the polycarbonate resin (A-1) was obtained. The resulting resin laminate (I-10) had a total central thickness of 1000 μm and a surface layer thickness of 60 μm. This resin laminate (I-10) has a total light transmittance of 91.6%, a haze of 0.2%, a pencil hardness of 3H, interference fringes of x, and cracks in the bent portion of heat press molding workability of ◯. there were.

Production Comparative Example 11B [Production of Resin Laminate (I-11)]
The thermoplastic resin (G-4) was prepared in the same manner as the resin laminate (H-2) of Production Example 2B, except that the thermoplastic resin (G-4) was used instead of the thermoplastic resin (B-1). A resin laminate (I-11) of the polycarbonate resin (A-1) was obtained. The resulting resin laminate (I-11) had an overall thickness of 1000 μm at the central portion and a surface layer thickness of 100 μm. This resin laminate (I-11) has a total light transmittance of 91.6%, a haze of 0.2%, a pencil hardness of 3H, interference fringes of x, and cracks in the bent portion of heat press molding workability of ◯. there were.

Production Comparative Example 12B [Production of resin laminate (I-12)]
The thermoplastic resin (G-4) was prepared in the same manner as the resin laminate (H-3) of Production Example 3B, except that the thermoplastic resin (G-4) was used instead of the thermoplastic resin (B-1). A resin laminate (I-12) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the obtained resin laminate (I-12) was 1000 μm, and the surface layer thicknesses were 60 μm and 60 μm. This resin laminate (I-12) has a total light transmittance of 91.6%, a haze of 0.2%, a pencil hardness of 3H, interference fringes of x, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Comparative Example 13B [Production of resin laminate (I-13)]
The thermoplastic resin (G-5) was prepared in the same manner as the resin laminate (H-1) of Production Example 1B, except that the thermoplastic resin (G-5) was used instead of the thermoplastic resin (B-1). A resin laminate (I-13) of the polycarbonate resin (A-1) was obtained. The total thickness of the central portion of the resin laminate (I-13) obtained was 1000 μm, and the thickness of the surface layer was 60 μm. This resin laminate (I-13) has a total light transmittance of 90.6%, a haze of 0.6%, a pencil hardness of F, an interference fringe of ◯, and cracks in the bent part of heat press molding processability of x. there were.

Production Comparative Example 14B [Production of resin laminate (I-14)]
The thermoplastic resin (G-5) was prepared in the same manner as the resin laminate (H-2) of Production Example 2B, except that the thermoplastic resin (G-5) was used instead of the thermoplastic resin (B-1). A resin laminate (I-14) of the polycarbonate resin (A-1) was obtained. The resulting resin laminate (I-14) had a total central thickness of 1000 μm and a surface layer thickness of 100 μm. This resin laminate (I-14) has a total light transmittance of 90.5%, a haze of 0.7%, a pencil hardness of H, interference fringes of ◯, and cracks in the bending part of heat press molding processability of x. there were.

Production Comparative Example 15B [Production of resin laminate (I-15)]
The thermoplastic resin (G-5) was prepared in the same manner as the resin laminate (H-3) of Production Example 3B, except that the thermoplastic resin (G-5) was used instead of the thermoplastic resin (B-1). A resin laminate (I-15) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the obtained resin laminate (I-15) was 1000 μm, and the surface layer thicknesses were 60 μm and 60 μm. This resin laminate (I-15) has a total light transmittance of 90.5%, a haze of 0.7%, a pencil hardness of F, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of x. there were.

Production Comparative Example 16B [Production of resin laminate (I-16)]
The thermoplastic resin (G-11) was prepared in the same manner as the resin laminate (H-1) of Production Example 1B, except that the thermoplastic resin (G-11) was used instead of the thermoplastic resin (B-1). A resin laminate (I-16) of the polycarbonate resin (A-1) was obtained. The resulting resin laminate (I-16) had a total central thickness of 1000 μm and a surface layer thickness of 60 μm. This resin laminate (I-16) has a total light transmittance of 91.3%, a haze of 0.2%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Comparative Example 17B [Production of resin laminate (I-17)]
The thermoplastic resin (G-11) was prepared in the same manner as the resin laminate (H-2) of Production Example 2B, except that the thermoplastic resin (G-11) was used instead of the thermoplastic resin (B-1). A resin laminate (I-17) of the polycarbonate resin (A-1) was obtained. The resulting resin laminate (I-17) had an overall thickness of 1000 μm at the central portion and a surface layer thickness of 100 μm. This resin laminate (I-17) has a total light transmittance of 91.2%, a haze of 0.3%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Comparative Example 18B [Production of resin laminate (I-18)]
The thermoplastic resin (G-11) was prepared in the same manner as the resin laminate (H-3) of Production Example 3B, except that the thermoplastic resin (G-11) was used instead of the thermoplastic resin (B-1). A resin laminate (I-18) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the obtained resin laminate (I-18) was 1000 μm, and the surface layer thicknesses were 60 μm and 60 μm. This resin laminate (I-18) has a total light transmittance of 91.2%, a haze of 0.3%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Comparative Example 19B [Production of resin laminate (I-19)]
The thermoplastic resin (G-12) was prepared in the same manner as the resin laminate (H-1) of Production Example 1B, except that the thermoplastic resin (G-12) was used instead of the thermoplastic resin (B-1). A resin laminate (I-19) of the polycarbonate resin (A-1) was obtained. The resulting resin laminate (I-19) had a total central thickness of 1000 μm and a surface layer thickness of 60 μm. This resin laminate (I-19) has a total light transmittance of 91.2%, a haze of 0.2%, a pencil hardness of H, interference fringes of ◯, and cracks in the bent part of heat press molding processability of ◯. there were.

Production Comparative Example 20B [Production of resin laminate (I-20)]
The thermoplastic resin (G-12) was prepared in the same manner as the resin laminate (H-2) of Production Example 2B, except that the thermoplastic resin (G-12) was used instead of the thermoplastic resin (B-1). A resin laminate (I-20) of the polycarbonate resin (A-1) was obtained. The resulting resin laminate (I-20) had an overall thickness of 1000 μm at the central portion and a surface layer thickness of 100 μm. This resin laminate (I-20) has a total light transmittance of 91.2%, a haze of 0.3%, a pencil hardness of H, interference fringes of ◯, and cracks in the bending portion of heat press molding processability of ◯. there were.

Production Comparative Example 21B [Production of resin laminate (I-21)]
The thermoplastic resin (G-12) was prepared in the same manner as the resin laminate (H-3) of Production Example 3B, except that the thermoplastic resin (G-12) was used instead of the thermoplastic resin (B-1). A resin laminate (I-21) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the obtained resin laminate (I-21) was 1000 μm, and the surface layer thicknesses were 60 μm and 60 μm. This resin laminate (I-21) has a total light transmittance of 91.2%, a haze of 0.3%, a pencil hardness of H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Comparative Example 22B [Production of resin laminate (I-22)]
The thermoplastic resin (G-13) was prepared in the same manner as the resin laminate (H-1) of Production Example 1B, except that the thermoplastic resin (G-13) was used instead of the thermoplastic resin (B-1). A resin laminate (I-22) of the polycarbonate resin (A-1) was obtained. The resulting resin laminate (I-22) had a total central thickness of 1000 μm and a surface layer thickness of 60 μm. This resin laminate (I-22) has a total light transmittance of 91.0%, a haze of 0.4%, a pencil hardness of H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Comparative Example 23B [Production of resin laminate (I-23)]
The thermoplastic resin (G-13) was prepared in the same manner as the resin laminate (H-2) of Production Example 2B, except that the thermoplastic resin (G-13) was used instead of the thermoplastic resin (B-1). A resin laminate (I-23) of the polycarbonate resin (A-1) was obtained. The resulting resin laminate (I-23) had an overall thickness of 1000 μm at the central portion and a surface layer thickness of 100 μm. This resin laminate (I-23) has a total light transmittance of 91.0%, a haze of 0.4%, a pencil hardness of H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Comparative Example 24B [Production of resin laminate (I-24)]
The thermoplastic resin (G-13) was prepared in the same manner as the resin laminate (H-3) of Production Example 3B, except that the thermoplastic resin (G-13) was used instead of the thermoplastic resin (B-1). A resin laminate (I-24) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the obtained resin laminate (I-24) was 1000 μm, and the surface layer thicknesses were 60 μm and 60 μm. This resin laminate (I-24) has a total light transmittance of 91.0%, a haze of 0.4%, a pencil hardness of H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Production Comparative Example 25B [Production of resin laminate (I-25)]
The thermoplastic resin (G-15) was prepared in the same manner as the resin laminate (H-1) of Production Example 1B, except that the thermoplastic resin (G-15) was used instead of the thermoplastic resin (B-1). A resin laminate (I-25) of the polycarbonate resin (A-1) was obtained. The resulting resin laminate (I-25) had a total central thickness of 1000 μm and a surface layer thickness of 60 μm. This resin laminate (I-25) has a total light transmittance of 90.8%, a haze of 0.3%, a pencil hardness of F, an interference fringe of ◯, and cracks in the bent part of heat press molding processability of x. there were.

Production Comparative Example 26B [Production of resin laminate (I-26)]
The thermoplastic resin (G-15) was prepared in the same manner as the resin laminate (H-2) of Production Example 2B, except that the thermoplastic resin (G-15) was used instead of the thermoplastic resin (B-1). A resin laminate (I-26) of the polycarbonate resin (A-1) was obtained. The resulting resin laminate (I-26) had an overall thickness of 1000 μm at the central portion and a surface layer thickness of 100 μm. This resin laminate (I-26) has a total light transmittance of 90.8%, a haze of 0.3%, a pencil hardness of F, an interference fringe of ◯, and cracks in the bent portion of heat press molding processability of x. there were.

Production Comparative Example 27B [Production of resin laminate (I-27)]
The thermoplastic resin (G-15) was prepared in the same manner as the resin laminate (H-3) of Production Example 3B, except that the thermoplastic resin (G-15) was used instead of the thermoplastic resin (B-1). A resin laminate (I-27) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the obtained resin laminate (I-27) was 1000 μm, and the surface layer thicknesses were 60 μm and 60 μm. This resin laminate (I-27) has a total light transmittance of 90.8%, a haze of 0.3%, a pencil hardness of F, an interference fringe of ◯, and cracks in the bending portion of heat press molding processability of x. there were.

Production Comparative Example 28B [Production of resin laminate (I-28)]
The thermoplastic resin (G-16) was prepared in the same manner as the resin laminate (H-1) of Production Example 1B, except that the thermoplastic resin (G-16) was used instead of the thermoplastic resin (B-1). A resin laminate (I-28) of the polycarbonate resin (A-1) was obtained. The resulting resin laminate (I-28) had a total central thickness of 1000 μm and a surface layer thickness of 60 μm. This resin laminate (I-28) has a total light transmittance of 91.5%, a haze of 0.3%, a pencil hardness of 2H, interference fringes of x, and cracks in the bending portion of heat press molding processability of ◯. there were.

Production Comparative Example 29B [Production of resin laminate (I-29)]
The thermoplastic resin (G-16) was prepared in the same manner as the resin laminate (H-2) of Production Example 2B, except that the thermoplastic resin (G-16) was used instead of the thermoplastic resin (B-1). A resin laminate (I-29) of the polycarbonate resin (A-1) was obtained. The resulting resin laminate (I-29) had an overall thickness of 1,000 μm at the central portion, and a surface layer thickness of 100 μm. This resin laminate (I-29) has a total light transmittance of 91.5%, a haze of 0.3%, a pencil hardness of 2H, interference fringes of x, and cracks in the bending portion of heat press molding workability of ◯. there were.

Production Comparative Example 30B [Production of resin laminate (I-30)]
A thermoplastic resin (G-16) was prepared in the same manner as the resin laminate (H-3) of Production Example 3B, except that the thermoplastic resin (G-16) was used instead of the thermoplastic resin (B-1). A resin laminate (I-30) of the polycarbonate resin (A-1) was obtained. The overall thickness of the central portion of the obtained resin laminate (I-30) was 1000 μm, and the surface layer thicknesses were 60 μm and 60 μm. This resin laminate (I-30) has a total light transmittance of 91.5%, a haze of 0.3%, a pencil hardness of 2H, interference fringes of x, and cracks in the bending portion of heat press molding processability of ◯. there were.

Example 1 [Production of resin laminate (K-1)]
Hexafunctional urethane acrylate oligomer (product name: U6HA, manufactured by Shin-Nakamura Chemical Co., Ltd.) 60 parts by mass, PEG200 # diacrylate (product name: 4EG-A, manufactured by Kyoeisha Chemical Co., Ltd.) 35 parts by mass, and fluorine-containing group ・A photopolymerization initiator (product name: I-184) is added to a total of 100 parts by weight of 5 parts by weight of an oligomer containing a hydrophilic group, a lipophilic group, and a UV-reactive group (product name: RS-90, manufactured by DIC Corporation). [Compound name: 1-hydroxy-cyclohexylphenyl ketone] manufactured by BASF Corporation) was added to the thermoplastic resin (B-1) of the resin laminate (H-1) obtained in Production Example 1B. A bar coater was used to apply the hard coat to the surface of the resin laminate (K-1), and a metal halide lamp (20 mW/cm ² ) was applied for 5 seconds to cure the hard coat, thereby producing a resin laminate (K-1). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (K-1) has a total light transmittance of 90.8%, a haze of 0.3%, a pencil hardness of 3H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Example 2 [Production of resin laminate (K-2)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (B-1) of the resin laminate (H-2) obtained in Production Example 2B with a bar coater, and hard coating was performed in the same manner as in Example 1. was cured to produce a resin laminate (K-2). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (K-2) has a total light transmittance of 90.8%, a haze of 0.5%, a pencil hardness of 3H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Example 3 [Production of resin laminate (K-3)]
The same paint as in Example 1 was applied to one side surface of the thermoplastic resin (B-1) of the resin laminate (H-3) obtained in Production Example 3B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (K-3). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (K-3) has a total light transmittance of 90.8%, a haze of 0.5%, a pencil hardness of 3H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Example 4 [Production of resin laminate (K-4)]
The same paint as in Example 1 is applied to the surface of the thermoplastic resin (B-2) of the resin laminate (H-4) obtained in Production Example 4B with a bar coater, and hard coating is performed in the same manner as in Example 1. was cured to produce a resin laminate (K-4). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (K-4) has a total light transmittance of 90.6%, a haze of 0.5%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bent part of heat press molding processability of ◯. there were.

Example 5 [Production of resin laminate (K-5)]
The same paint as in Example 1 is applied to the surface of the thermoplastic resin (B-2) of the resin laminate (H-5) obtained in Production Example 5B with a bar coater, and hard coating is performed in the same manner as in Example 1. was cured to produce a resin laminate (K-5). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (K-5) has a total light transmittance of 90.4%, a haze of 0.6%, a pencil hardness of 3H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Example 6 [Production of resin laminate (K-6)]
The same paint as in Example 1 was applied to one side surface of the thermoplastic resin (B-2) of the resin laminate (H-6) obtained in Production Example 6B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (K-6). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (K-6) has a total light transmittance of 90.4%, a haze of 0.6%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Example 7 [Production of resin laminate (K-7)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (B-3) of the resin laminate (H-7) obtained in Production Example 7B with a bar coater, and hard coating was performed in the same manner as in Example 1. was cured to produce a resin laminate (K-7). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (K-7) has a total light transmittance of 90.8%, a haze of 0.3%, a pencil hardness of 3H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Example 8 [Production of resin laminate (K-8)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (B-3) of the resin laminate (H-8) obtained in Production Example 8B with a bar coater, and hard coating was performed in the same manner as in Example 1. was cured to produce a resin laminate (K-8). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (K-8) has a total light transmittance of 90.8%, a haze of 0.5%, a pencil hardness of 3H, interference fringes of ◯, and cracks in the bent part of heat press molding processability of ◯. there were.

Example 9 [Production of resin laminate (K-9)]
The same paint as in Example 1 was applied to one side surface of the thermoplastic resin (B-3) of the resin laminate (H-9) obtained in Production Example 9B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (K-9). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (K-9) has a total light transmittance of 90.8%, a haze of 0.5%, a pencil hardness of 3H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Example 10 [Production of resin laminate (K-10)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (B-4) of the resin laminate (H-10) obtained in Production Example 10B with a bar coater, and hard coating was performed in the same manner as in Example 1. was cured to produce a resin laminate (K-10). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (K-10) has a total light transmittance of 90.6%, a haze of 0.5%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Example 11 [Production of resin laminate (K-11)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (B-4) of the resin laminate (H-11) obtained in Production Example 11B with a bar coater, and hard coating was performed in the same manner as in Example 1. was cured to produce a resin laminate (K-11). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (K-11) has a total light transmittance of 90.4%, a haze of 0.6%, a pencil hardness of 3H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of ◯. there were.

Example 12 [Production of resin laminate (K-12)]
The same paint as in Example 1 was applied to one side surface of the thermoplastic resin (B-4) of the resin laminate (H-12) obtained in Production Example 12B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (K-12). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (K-12) has a total light transmittance of 90.4%, a haze of 0.6%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bending portion of heat press molding processability of ◯. there were.

Comparative Example 1 [Production of resin laminate (L-1)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-1) of the resin laminate (I-1) obtained in Comparative Production Example 1B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-1). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-1) has a total light transmittance of 91.1%, a haze of 0.5%, a pencil hardness of 3H, interference fringes of ◯, and cracks in the bending portion of heat press molding processability of x. there were.

Comparative Example 2 [Production of resin laminate (L-2)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-1) of the resin laminate (I-2) obtained in Comparative Production Example 2B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-2). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-2) has a total light transmittance of 91.0%, a haze of 0.6%, a pencil hardness of 4H, interference fringes of ◯, and cracks in the bending portion of heat press molding processability of x. there were.

Comparative Example 3 [Production of resin laminate (L-3)]
The same paint as in Example 1 was applied to one side surface of the thermoplastic resin (G-1) of the resin laminate (I-3) obtained in Comparative Production Example 3B with a bar coater, and in the same manner as in Example 1. The hard coat was cured to produce a resin laminate (L-3). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-3) has a total light transmittance of 91.0%, a haze of 0.6%, a pencil hardness of 3H, interference fringes of ◯, and cracks in the bending part of heat press molding processability of x. there were.

Comparative Example 4 [Production of resin laminate (L-4)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-2) of the resin laminate (I-4) obtained in Comparative Production Example 4B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-4). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-4) has a total light transmittance of 91.1%, a haze of 0.5%, a pencil hardness of 3H, interference fringes of ◯, and cracks in the bending portion of heat press molding processability of x. there were.

Comparative Example 5 [Production of resin laminate (L-5)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-2) of the resin laminate (I-5) obtained in Comparative Production Example 5B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-5). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-5) has a total light transmittance of 91.0%, a haze of 0.6%, a pencil hardness of 4H, interference fringes of ◯, and cracks in the bent portion of heat press molding processability of x. there were.

Comparative Example 6 [Production of resin laminate (L-6)]
The same paint as in Example 1 was applied to one side surface of the thermoplastic resin (G-2) of the resin laminate (I-6) obtained in Comparative Production Example 6B with a bar coater, and in the same manner as in Example 1. The hard coat was cured to produce a resin laminate (L-6). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-6) has a total light transmittance of 91.0%, a haze of 0.6%, a pencil hardness of 3H, interference fringes of ◯, and cracks in the bending portion of heat press molding processability of x. there were.

Comparative Example 7 [Production of resin laminate (L-7)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-3) of the resin laminate (I-7) obtained in Comparative Production Example 7B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-7). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-7) has a total light transmittance of 91.5%, a haze of 0.2%, a pencil hardness of 4H, interference fringes of x, and cracks in the bending portion of heat press molding workability of x. there were.

Comparative Example 8 [Production of resin laminate (L-8)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-3) of the resin laminate (I-8) obtained in Comparative Production Example 8B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-8). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-8) has a total light transmittance of 91.5%, a haze of 0.2%, a pencil hardness of 4H, interference fringes of x, and cracks in the bending portion of heat press molding workability of x. there were.

Comparative Example 9 [Production of resin laminate (L-9)]
The same paint as in Example 1 was applied to one side surface of the thermoplastic resin (G-3) of the resin laminate (I-9) obtained in Comparative Production Example 9B with a bar coater, and in the same manner as in Example 1. The hard coat was cured to produce a resin laminate (L-9). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-9) has a total light transmittance of 91.5%, a haze of 0.2%, a pencil hardness of 4H, interference fringes of x, and cracks in the bending portion of heat press molding workability of x. there were.

Comparative Example 10 [Production of resin laminate (L-10)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-4) of the resin laminate (I-10) obtained in Comparative Production Example 10B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-10). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-10) has a total light transmittance of 91.5%, a haze of 0.2%, a pencil hardness of 4H, an interference fringe of x, and cracks in the bent portion of heat press molding processability of x. there were.

Comparative Example 11 [Production of resin laminate (L-11)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-4) of the resin laminate (I-11) obtained in Comparative Production Example 11B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-11). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-11) has a total light transmittance of 91.5%, a haze of 0.2%, a pencil hardness of 4H, interference fringes of x, and cracks in the bending part of heat press molding workability of x. there were.

Comparative Example 12 [Production of resin laminate (L-12)]
The same paint as in Example 1 was applied to one side surface of the thermoplastic resin (G-4) of the resin laminate (I-12) obtained in Comparative Production Example 12B with a bar coater, and in the same manner as in Example 1. The hard coat was cured to produce a resin laminate (L-12). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-12) has a total light transmittance of 91.5%, a haze of 0.2%, a pencil hardness of 4H, interference fringes of x, and cracks in the bending portion of heat press molding workability of x. there were.

Comparative Example 13 [Production of resin laminate (L-13)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-5) of the resin laminate (I-13) obtained in Comparative Production Example 13B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-13). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-13) has a total light transmittance of 90.5%, a haze of 0.6%, a pencil hardness of H, interference fringes of ◯, and cracks in the bending part of heat press molding processability of x. there were.

Comparative Example 14 [Production of resin laminate (L-14)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-5) of the resin laminate (I-14) obtained in Comparative Production Example 14B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-14). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-14) has a total light transmittance of 90.4%, a haze of 0.7%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bending portion of heat press molding processability of x. there were.

Comparative Example 15 [Production of resin laminate (L-15)]
The same paint as in Example 1 was applied to one side surface of the thermoplastic resin (G-5) of the resin laminate (I-15) obtained in Comparative Production Example 15B with a bar coater, and in the same manner as in Example 1. The hard coat was cured to produce a resin laminate (L-15). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-15) has a total light transmittance of 90.4%, a haze of 0.7%, a pencil hardness of H, interference fringes of ◯, and cracks in the bending part of heat press molding processability of x. there were.

Comparative Example 16 [Production of resin laminate (L-16)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-11) of the resin laminate (I-16) obtained in Comparative Production Example 16B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-16). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-16) has a total light transmittance of 91.2%, a haze of 0.2%, a pencil hardness of 3H, interference fringes of ◯, and cracks in the bent part of heat press molding processability of x. there were.

Comparative Example 17 [Production of resin laminate (L-17)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-11) of the resin laminate (I-17) obtained in Comparative Production Example 17B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-17). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-17) has a total light transmittance of 91.1%, a haze of 0.3%, a pencil hardness of 3H, interference fringes of ◯, and cracks in the bending portion of heat press molding processability of x. there were.

Comparative Example 18 [Production of resin laminate (L-18)]
The same paint as in Example 1 was applied to one side surface of the thermoplastic resin (G-11) of the resin laminate (I-18) obtained in Comparative Production Example 18B with a bar coater, and in the same manner as in Example 1. The hard coat was cured to produce a resin laminate (L-18). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-18) has a total light transmittance of 91.1%, a haze of 0.3%, a pencil hardness of 3H, interference fringes of ◯, and cracks in the bent part of heat press molding processability of x. there were.

Comparative Example 19 [Production of resin laminate (L-19)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-12) of the resin laminate (I-19) obtained in Comparative Production Example 19B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-19). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-19) has a total light transmittance of 91.1%, a haze of 0.2%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bent part of heat press molding processability of x. there were.

Comparative Example 20 [Production of resin laminate (L-20)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-12) of the resin laminate (I-20) obtained in Comparative Production Example 20B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-20). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-20) has a total light transmittance of 91.1%, a haze of 0.3%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bending portion of heat press molding processability of x. there were.

Comparative Example 21 [Production of resin laminate (L-21)]
The same paint as in Example 1 was applied to one side surface of the thermoplastic resin (G-12) of the resin laminate (I-21) obtained in Comparative Production Example 21B with a bar coater, and in the same manner as in Example 1. The hard coat was cured to produce a resin laminate (L-21). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-21) has a total light transmittance of 91.1%, a haze of 0.3%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bending portion of heat press molding processability of x. there were.

Comparative Example 22 [Production of resin laminate (L-22)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-13) of the resin laminate (I-22) obtained in Comparative Production Example 22B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-22). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-22) has a total light transmittance of 90.9%, a haze of 0.4%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bending portion of heat press molding processability of x. there were.

Comparative Example 23 [Production of resin laminate (L-23)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-13) of the resin laminate (I-23) obtained in Comparative Production Example 23B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-23). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-23) has a total light transmittance of 90.9%, a haze of 0.4%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bending portion of heat press molding processability of x. there were.

Comparative Example 24 [Production of resin laminate (L-24)]
The same paint as in Example 1 was applied to one side surface of the thermoplastic resin (G-13) of the resin laminate (I-24) obtained in Comparative Production Example 24B with a bar coater, and in the same manner as in Example 1. The hard coat was cured to produce a resin laminate (L-24). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-24) has a total light transmittance of 90.9%, a haze of 0.4%, a pencil hardness of 2H, interference fringes of ◯, and cracks in the bending portion of heat press molding processability of x. there were.

Comparative Example 25 [Production of resin laminate (L-25)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-15) of the resin laminate (I-25) obtained in Comparative Production Example 25B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-25). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-25) has a total light transmittance of 90.7%, a haze of 0.3%, a pencil hardness of H, an interference fringe of ◯, and cracks in the bending portion of heat press molding processability of x. there were.

Comparative Example 26 [Production of resin laminate (L-26)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-15) of the resin laminate (I-26) obtained in Comparative Production Example 26B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-26). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-26) has a total light transmittance of 90.7%, a haze of 0.3%, a pencil hardness of H, interference fringes of ◯, and cracks in the bending part of heat press molding processability of x. there were.

Comparative Example 27 [Production of resin laminate (L-27)]
The same paint as in Example 1 was applied to one side surface of the thermoplastic resin (G-15) of the resin laminate (I-27) obtained in Comparative Production Example 27B with a bar coater, and in the same manner as in Example 1. The hard coat was cured to produce a resin laminate (L-27). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-27) has a total light transmittance of 90.7%, a haze of 0.3%, a pencil hardness of H, interference fringes of ◯, and cracks in the bending portion of heat press molding processability of x. there were.

Comparative Example 28 [Production of resin laminate (L-28)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-16) of the resin laminate (I-28) obtained in Comparative Production Example 28B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-28). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-28) has a total light transmittance of 91.4%, a haze of 0.3%, a pencil hardness of 3H, interference fringes of x, and cracks in the bending portion of heat press molding processability of x. there were.

Comparative Example 29 [Production of resin laminate (L-29)]
The same paint as in Example 1 was applied to the surface of the thermoplastic resin (G-16) of the resin laminate (I-29) obtained in Comparative Production Example 29B with a bar coater, and hardened in the same manner as in Example 1. The coat was cured to produce a resin laminate (L-29). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-29) has a total light transmittance of 91.4%, a haze of 0.3%, a pencil hardness of 3H, interference fringes of x, and cracks in the bending portion of heat press molding workability of x. there were.

Comparative Example 30 [Production of resin laminate (L-30)]
The same paint as in Example 1 was applied to one side surface of the thermoplastic resin (G-16) of the resin laminate (I-30) obtained in Comparative Production Example 30B with a bar coater, and in the same manner as in Example 1. The hard coat was cured to produce a resin laminate (L-30). The thickness of the hard coat layer (J-1) was 6 μm.
This resin laminate (L-30) has a total light transmittance of 91.4%, a haze of 0.3%, a pencil hardness of 3H, an interference fringe of x, and cracks in the bent portion of heat press molding processability of x. there were.

As described above, by satisfying the conditions of the present invention, it is possible to obtain an advantageous effect that it is possible to obtain a resin laminate that is excellent in thermoformability at low temperatures and suppresses the occurrence of interference fringes and has a good appearance.

That is, as shown in Table 2, for the pelletized thermoplastic resin (B), Production Examples 1A to 4A in which the methacrylic resin (C) and the specific styrene copolymer (D) were blended, and the methacrylic resin (C ) When compared with Comparative Production Examples 3A-4A, the refractive indices of Production Examples 1A-4A were higher.
Further, when comparing Production Examples 1A to 4A with Comparative Production Examples 6A to 9A in which the methacrylic resin (C) and the styrene copolymer (E) other than the specific styrene copolymer (D) were blended, the results of Production Example 1A to 4A were more transparent and had a better appearance.
Furthermore, when Production Examples 1A to 4A are compared with Comparative Production Example 10A in which a methacrylic resin (F) other than the methacrylic resin (C) is blended with a specific styrene copolymer (D), the results of Production Examples 1A to 4A was more transparent and had a better appearance.

As shown in Table 3, for the resin laminate before hard coating, a methacrylic resin (C) characterized by a high refractive index and a specific styrene copolymer (D) are blended and pelletized. Production examples 1B to 12B in which the plastic resin (B) and the polycarbonate resin (A) are laminated, and production in which the thermoplastic resin obtained by pelletizing the methacrylic resin (C) alone and the specific polycarbonate resin (A) are laminated. When compared with Comparative Examples 7B to 12B, the interference fringes were better in the resin laminates of Production Examples 1B to 12B.
In addition, when comparing Production Examples 1B to 12B with Comparative Production Examples 13B to 15B in which a thermoplastic resin obtained by pelletizing a specific styrene copolymer (D) alone and a polycarbonate resin (A) are laminated, Production Examples The resin laminates of 1B to 12B suppressed cracks at the bending portion during hot press molding.

As shown in Table 4, for the resin laminate after hard coating, a thermoplastic resin (B) obtained by blending a methacrylic resin (C) and a specific styrene copolymer (D) and pelletizing and a polycarbonate resin (A) and Examples 1 to 12 having a hard coat on one side surface of the thermoplastic resin (B), and a thermoplastic resin obtained by pelletizing the methacrylic resin (C) alone and the polycarbonate resin (A) is laminated and compared with Comparative Examples 7 to 12 having a hard coat on one side surface of the thermoplastic resin, the resin laminates of Examples 1 to 12 have good interference fringes as before the hard coat is applied. there were.
In addition, comparison between Examples 1 to 12 and a laminate of a thermoplastic resin obtained by pelletizing a specific styrene copolymer (D) alone and a polycarbonate resin (A), and having a hard coat on one side surface of the thermoplastic resin When compared with Examples 13 to 15, the resin laminates of Examples 1 to 12 suppressed cracks in the bending portion during hot press molding, as before the hard coat was applied.
Furthermore, Examples 1 to 12, a methacrylic resin (C) and a specific styrene copolymer (D) are blended at a ratio other than the specific ratio, and the pelletized thermoplastic resin and the polycarbonate resin (A) are laminated. However, when compared with Comparative Examples 1 to 6 having a hard coat on one side surface of the thermoplastic resin, the resin laminates of Examples 1 to 12 are different from before the hard coat is applied, and the bending during hot press molding processing It was suppressing the crack of the part.

Moreover, a thermoplastic resin obtained by blending Examples 1 to 12, a methacrylic resin (F) other than the methacrylic resin (C), and a styrene copolymer (E) other than the specific styrene copolymer (D), and pelletized When comparing with Comparative Examples 16 to 24 in which a resin and a polycarbonate resin (A) are laminated and a hard coat is provided on one side surface of the thermoplastic resin, the resin laminates of Examples 1 to 12 are coated with a hard coat. Unlike before, cracks in the bent portion during hot press molding were suppressed.

Claims (14)

Resin lamination having a layer containing a thermoplastic resin (B) on at least one surface of a layer containing a polycarbonate resin (A) and a hard coat layer on at least one surface of the layer containing the thermoplastic resin (B) being a body,
The polycarbonate-based resin (A) has a glass transition temperature higher than 140° C. and not higher than 170° C.,
The content of the methacrylic resin (C) in the thermoplastic resin (B) is 5 to 70 parts by mass based on the total content of the methacrylic resin (C) and the styrene copolymer (D) of 100 parts by mass. , the content of the styrene copolymer (D) is 95 to 30 parts by mass,
The methacrylic resin (C) contains 80 mol% or more of structural units derived from a methacrylic acid ester monomer,
A copolymer in which the styrene copolymer (D) contains 68 to 84% by mass of vinyl aromatic monomer units (d1) and 16 to 32% by mass of cyclic acid anhydride monomer units (d2) The resin laminate. 2. The resin laminate according to claim 1, wherein no cracks occur after thermoforming of 50 mmR with a hot press. 3. The resin laminate according to claim 1, wherein the thermoplastic resin (B) is a polymer alloy of methacrylic resin (C) and styrene copolymer (D). 4. The resin laminate according to any one of claims 1 to 3, wherein the vinyl aromatic monomer unit (d1) contained in the styrene copolymer (D) is styrene. 5. The resin laminate according to claim 1, wherein the cyclic acid anhydride monomer unit (d2) contained in the styrene copolymer (D) is maleic anhydride. The resin according to any one of claims 1 to 5, wherein the thickness of the layer containing the thermoplastic resin (B) is 10 to 250 µm, and the total thickness of the resin laminate is in the range of 0.4 to 4.0 mm. laminate. The resin laminate according to any one of claims 1 to 6, wherein at least one of the layer containing the polycarbonate resin (A), the layer containing the thermoplastic resin (B), and the hard coat layer contains an ultraviolet absorber. . The resin laminate according to any one of claims 1 to 7, wherein the hard coat layer is an acrylic hard coat. 9. The resin laminate according to any one of claims 1 to 8, wherein at least one of anti-fingerprint treatment, antireflection treatment, antiglare treatment, weather resistance treatment, antistatic treatment and antifouling treatment is applied to one or both surfaces of the resin laminate. The resin laminate according to 1. A thermoformed body obtained by thermally bending the resin laminate according to any one of claims 1 to 9. A transparent substrate material comprising the resin laminate according to any one of claims 1 to 9 or the thermoformed body according to claim 10. A transparent protective material comprising the resin laminate according to any one of claims 1 to 9 or the thermoformed body according to claim 10. A touch panel front protection plate comprising the resin laminate according to any one of claims 1 to 9 or the thermoformed body according to claim 10. A front panel for car navigation, OA equipment or portable electronic equipment, comprising the resin laminate according to any one of claims 1 to 9 or the thermoformed product according to claim 10.