JP2979568B2 - Molding material for artificial marble - Google Patents
Molding material for artificial marbleInfo
- Publication number
- JP2979568B2 JP2979568B2 JP2046806A JP4680690A JP2979568B2 JP 2979568 B2 JP2979568 B2 JP 2979568B2 JP 2046806 A JP2046806 A JP 2046806A JP 4680690 A JP4680690 A JP 4680690A JP 2979568 B2 JP2979568 B2 JP 2979568B2
- Authority
- JP
- Japan
- Prior art keywords
- bmc
- artificial marble
- molding material
- molding
- smc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、透明性に優れ、かつ高い白色性を有するSM
C又はBMCからなる人造大理石用成形材料に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an SM having excellent transparency and high whiteness.
The present invention relates to an artificial marble molding material composed of C or BMC.
周知のように、繊維強化熱硬化性樹脂（以下、FRPと
略す）は、金属に比べ軽量で強度，耐蝕性に優れる等、
多くの特徴を有しており、バスタブ，浄化槽，パイプ，
ボート，いす，各種自動車部品等、多岐に亘って使用さ
れている。このようなFRPの成形方法には多くの種類が
あるが、その１つにプレス成形法がある。この方法は、
予め所定の温度に加熱されたプレス用金型内にFRP材料
を投入し、加圧・硬化させる方法であり、FRP材料とし
て、液状樹脂を用いる場合と、SMC,BMC等の成形材料を
用いる場合とがある。このうち、成形材料を用いたプレ
ス成形法は、材料ロスが少ない、生産性が高い、作業環
境が良い等、他のFRP成形法に比べ多くの長所を有し、F
RP成形品の生産に広く用いられている。As is well known, fiber reinforced thermosetting resin (hereinafter abbreviated as FRP) is lighter than metal and has superior strength and corrosion resistance.
It has many features, such as bathtub, septic tank, pipe,
It is widely used in boats, chairs, various automobile parts, and the like. There are many types of such FRP molding methods, and one of them is a press molding method. This method
This is a method in which an FRP material is put into a press mold that has been heated to a predetermined temperature in advance, and then pressurized and cured.When a liquid resin is used as the FRP material, or when a molding material such as SMC or BMC is used. There is. Of these, the press molding method using molding materials has many advantages over other FRP molding methods, such as low material loss, high productivity, and a good working environment.
Widely used in the production of RP molded products.
SMC,BMCはこのように多くの長所を有しているため、
近年、洗面化粧台，バスタブ，台所カウンター等人造大
理石関係の用途にも広く利用されており、高級化，多用
化のニーズに対応するため色，柄等について様々な種類
の製品が開発されている。その中でも白色系の人造大理
石は、基本色であり、台所等のシステム化と相まって、
その主流を占めている。しかしながら、SMC又はBMC製の
白色系人造大理石は透明性が悪いために、外観品質が劣
るという欠点を有している。加えて、台所カウンター等
では、特に清潔感志向が強いため、人造大理石の更なる
白色性の向上が要求されている。一般的にSMC又はBMCの
白色性を高めるためには、白色顔料の添加及び又は増量
を行い、隠ぺい力を更に強くする必要がある。このこと
は当然のことながら、透明性を極端に損なうことにな
り、結果として、その成形品は、大理石特有の透明性に
基づく深みのある外観が得られないという問題を有して
いる。Because SMC and BMC have such many advantages,
In recent years, it has been widely used in artificial marble-related applications such as vanities, bathtubs, kitchen counters, etc., and various types of products with colors and patterns have been developed to meet the needs of upgrading and versatility. . Among them, white artificial marble is the basic color, coupled with the systematization of kitchens,
It occupies the mainstream. However, the white artificial marble made of SMC or BMC has a drawback of poor appearance quality due to poor transparency. In addition, in kitchen counters and the like, since the sense of cleanliness is particularly strong, further improvement in the whiteness of artificial marble is required. Generally, in order to enhance the whiteness of SMC or BMC, it is necessary to add and / or increase the amount of white pigment to further increase the hiding power. As a matter of course, the transparency is extremely impaired, and as a result, the molded article has a problem that a deep appearance based on the transparency peculiar to marble cannot be obtained.
本発明は、前記従来の問題点を解決することにある。
本発明は、この課題を解決するために、可視部領域の光
透過性が大きい性質を有する超微粒子の白色顔料を用い
ることを特徴とするものである。An object of the present invention is to solve the conventional problems.
In order to solve this problem, the present invention is characterized by using an ultrafine white pigment having a property of high light transmittance in a visible region.
すなわち、本発明は比表面積が145〜14m2/g、好まし
くは平均粒子径0.01〜0.1μの白色顔料、好ましくは酸
化チタンを含有する透明性に秀れ、かつ高い白色性を有
するSMC又はBMCからなることを特徴とする人造大理石用
成形材料を提供するものである。That is, the present invention has a specific surface area of 145 to 14 m 2 / g, preferably a white pigment having an average particle size of 0.01 to 0.1 μm, preferably having excellent transparency containing titanium oxide, and having high whiteness SMC or BMC. It is intended to provide a molding material for artificial marble, comprising:
（構 成） 本発明で用いられる白色顔料としては、例えば、酸化
チタン，硫化亜鉛，亜鉛華，硫酸バリウム，硫酸鉛など
で、好ましくは酸化チタンであり、その比表面積が145
〜14m2/g、好ましくは平均粒子径0.01〜0.1μのもの
で、特に好ましくは比表面積71〜24m2/g、平均粒子径0.
02〜0.05μのものがあげられる。本発明のSMC又はBMC
は、熱硬化性樹脂に前述の白色顔料を添加分散したもの
であり、それ以外にたとえば、水酸化アルミニウム，ガ
ラスパウダー，ケイ石粉，マイカ，炭酸カルシウムなど
の無機質充填剤，ステアリン酸亜鉛，ステアリン酸カル
シウムなどの内部離型剤，過酸化ベンゾイル,t−ブチル
パーベンゾエートなどの過酸化物系硬化剤、さらにガラ
スなどの無機質繊維やビニロン，ナイロン等有機質繊維
などの繊維補強材、あるいは必要により、酸化マグネシ
ウム，水酸化マグネシウムなどの増粘剤やその他公知の
添加剤を添加混合することができる。(Constitution) The white pigment used in the present invention is, for example, titanium oxide, zinc sulfide, zinc white, barium sulfate, lead sulfate, etc., preferably titanium oxide, and has a specific surface area of 145.
1414 m 2 / g, preferably having an average particle diameter of 0.01 to 0.1 μm, and particularly preferably having a specific surface area of 71 to 24 m 2 / g and an average particle diameter of 0.
02-0.05μ. SMC or BMC of the present invention
Is obtained by adding and dispersing the above-mentioned white pigment to a thermosetting resin, and further includes, for example, inorganic fillers such as aluminum hydroxide, glass powder, silica stone powder, mica, calcium carbonate, zinc stearate, and calcium stearate. Internal release agents such as benzoyl peroxide, t-butyl perbenzoate, and other peroxide-based curing agents, as well as fiber reinforcing materials such as inorganic fibers such as glass and organic fibers such as vinylon and nylon, or magnesium oxide if necessary. , Magnesium hydroxide and the like and other known additives can be added and mixed.
本発明の熱硬化性樹脂は、例えば、エポキシ樹脂，不
飽和ポリエステル樹脂，ビニルエステル樹脂などであ
り、好ましくは不飽和ポリエステル樹脂，ビニルエステ
ル樹脂である。The thermosetting resin of the present invention is, for example, an epoxy resin, an unsaturated polyester resin, a vinyl ester resin, or the like, and is preferably an unsaturated polyester resin, a vinyl ester resin.
次に上記の本発明のSMC又はBMCは、加熱圧縮して成形
を行う。この成形操作は、プレス機械を用いて行われる
が、そのプレス成形条件は、通常のSMC又はBMCのプレス
成形条件と同様に、温度が40〜180℃、圧力が10〜200kg
/cm2、加圧時間が１〜60分間の範囲である。しかし、使
用するSMC又はBMCの組成内容や成形品の形状、大きさな
どにより、適宜条件を選択すればよい。この操作によ
り、透明性に秀れ、かつ高い白色性を有する成形品が得
られる。Next, the above-described SMC or BMC of the present invention is molded by heating and compressing. This molding operation is performed using a press machine, and the press molding conditions are the same as those for ordinary SMC or BMC press molding, with a temperature of 40 to 180 ° C and a pressure of 10 to 200 kg.
/ cm 2 , and pressurization time is in the range of 1 to 60 minutes. However, conditions may be appropriately selected depending on the composition of the SMC or BMC used, the shape and size of the molded product, and the like. By this operation, a molded article having excellent transparency and high whiteness can be obtained.
本発明の成形材料は、可視部領域の光透過性が大きい
性質を有する超微粒子の白色顔料を含有しているため、
高い白色性を有しながら、かつ透明性に秀れる成形品を
得ることができ、洗面化粧台，バスタブ，台所カウンタ
ーなど人造大理石関係の用途に好適である。Since the molding material of the present invention contains an ultrafine white pigment having a property that light transmittance in the visible region is large,
A molded article having high whiteness and excellent transparency can be obtained, and is suitable for artificial marble-related applications such as a vanity table, a bathtub, and a kitchen counter.
以下、本発明を実施例により具体的に説明する。 Hereinafter, the present invention will be described specifically with reference to examples.
（実施例１） 平均粒子径0.02μの超微粒子酸化チタン（比表面積71
m2/g）を含有するBMCを作製し、300×300mm寸法の平均
成形用金型を用いて、プレス成形を行い、板厚10mmの平
板成形品を得た。この実施例のBMCの組成は表−１に示
した。成形条件は、金型（コマ）140℃、金型（キャ
ビ）145℃、成形圧力100kgf/cm2、成形時間８分間とし
た。(Example 1) Ultrafine titanium oxide having an average particle diameter of 0.02 µ (specific surface area: 71
to prepare a BMC containing m 2 / g), using the average mold of 300 × 300 mm size and pressed molding to obtain a plate molded article having a thickness of 10 mm. The composition of the BMC of this example is shown in Table 1. The molding conditions were a mold (coma) of 140 ° C., a mold (cavity) of 145 ° C., a molding pressure of 100 kgf / cm 2 , and a molding time of 8 minutes.
（実施例２） 平均粒子径0.05μの超微粒子酸化チタン（比表面積24
m2/g）を含有するBMCを作製し、実施例１と同様にして
板厚10mmの平板成形品を得た。本実施例のBMCの組成は
表−１に示した。(Example 2) Ultrafine titanium oxide having an average particle diameter of 0.05μ (specific surface area 24
to prepare a BMC containing m 2 / g), in the same manner as in Example 1 to obtain a plate thickness 10mm flat plate molded article. The composition of the BMC of this example is shown in Table 1.
（実施例３） 平均粒子径0.05μの超微粒子硫酸バリウム（比表面積
24m2/g）を含有するBMCを作製し、実施例１と同様にし
て板厚10mmの平板成形品を得た。本実施例のBMCの組成
は表−１に示した。(Example 3) Ultrafine barium sulfate having an average particle diameter of 0.05 μm (specific surface area)
A BMC containing 24 m 2 / g) was prepared, and a flat plate having a thickness of 10 mm was obtained in the same manner as in Example 1. The composition of the BMC of this example is shown in Table 1.
（比較例１） 平均粒子径0.2μの従来の酸化チタン（比表面積7m2/
g）を含有するBMCを作製し、実施例１と同様にして板厚
10mmの平板成形品を得た。本実施例のBMCの組成は表−
１に示した。(Comparative Example 1) Conventional titanium oxide having an average particle size of 0.2 μm (specific surface area: 7 m 2 /
g) containing BMC was prepared, and the plate thickness was changed in the same manner as in Example 1.
A flat molded product of 10 mm was obtained. The composition of the BMC of this example is shown in Table 1.
1 is shown.
（比較例２） 平均粒子径が0.2μの従来の酸化チタン（比表面積7m2
/g）を極めて少量含有するBMCを作製し、実施例１と同
様にして板厚10mmの平板成形品を得た。本比較例のBMC
の組成は表−１に示した。(Comparative Example 2) Conventional titanium oxide having an average particle diameter of 0.2 μm (specific surface area: 7 m 2
/ g) was prepared, and a flat molded product having a thickness of 10 mm was obtained in the same manner as in Example 1. BMC of this comparative example
Is shown in Table 1.
実施例1,2,3及び比較例1,2の平板成形品の白色性及び
透明性について評価を行い、結果は表−２に示した。The whiteness and transparency of the flat molded products of Examples 1, 2, 3 and Comparative Examples 1, 2 were evaluated, and the results are shown in Table 2.
表−２から明らかなように、本発明は従来両立できな
かった成形品の白色性と透明性を共に満足することが確
認された。As is evident from Table 2, it was confirmed that the present invention satisfies both whiteness and transparency of a molded product which has been incompatible with the prior art.
フロントページの続き (56)参考文献 特開 昭59−66426（ＪＰ，Ａ) 特開 昭61−36338（ＪＰ，Ａ) 特開 平１−252525（ＪＰ，Ａ) 特開 昭62−197309（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) C08L 67/06 - 67/07 C04B 26/02 C04B 14/02,14/30 Continuation of the front page (56) References JP-A-59-66426 (JP, A) JP-A-61-36338 (JP, A) JP-A-1-252525 (JP, A) JP-A-62-197309 (JP) , A) (58) Field surveyed (Int. Cl. 6 , DB name) C08L 67/06-67/07 C04B 26/02 C04B 14 / 02,14 / 30
Claims (3)
含有するSMC又はBMCからなる事を特徴とする人造大理石
用成形材料。1. A molding material for artificial marble, comprising SMC or BMC containing a white pigment having a specific surface area of 145 to 14 m 2 / g.
ることを特徴とする請求項１の人造大理石用成形材料。2. The molding material for artificial marble according to claim 1, wherein the white pigment has an average particle diameter of 0.01 to 0.1 μm.
する請求項１の人造大理石用成形材料。3. The molding material for artificial marble according to claim 1, wherein the white pigment is titanium oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2046806A JP2979568B2 (en) | 1990-02-27 | 1990-02-27 | Molding material for artificial marble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2046806A JP2979568B2 (en) | 1990-02-27 | 1990-02-27 | Molding material for artificial marble |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03247653A JPH03247653A (en) | 1991-11-05 |
| JP2979568B2 true JP2979568B2 (en) | 1999-11-15 |
Family
ID=12757577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2046806A Expired - Fee Related JP2979568B2 (en) | 1990-02-27 | 1990-02-27 | Molding material for artificial marble |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2979568B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05201732A (en) * | 1991-11-08 | 1993-08-10 | Dainichiseika Color & Chem Mfg Co Ltd | Fine particle rutile-type composite oxide pigment and method for producing the same |
| JP2001115046A (en) * | 1999-10-15 | 2001-04-24 | Takeda Chem Ind Ltd | Sheet-like molding material from which molded article having high transparency can be obtained, and the same molded article |
| JP2002361646A (en) * | 2001-06-07 | 2002-12-18 | Torimu:Kk | Artificial marble and its manufacturing method |
-
1990
- 1990-02-27 JP JP2046806A patent/JP2979568B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03247653A (en) | 1991-11-05 |
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