JPH0778163B2 - Method for producing resin composite - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a method for producing a resin composite in which a polyamide resin and a specific modified polyolefin are entangled with each other and the modified polyolefin is partially crosslinked.

<Prior Art> In recent years, active studies have been made to improve the impact resistance of polyamide resins and expand their applications. The method usually adopted for this purpose is to first introduce a functional group into EPR or EPDM rubber to prepare a modified polyolefin rubber, and then melt-blend this modified polyolefin rubber into a polyamide resin. , The impact-resistant nylon resin with practical value is actually manufactured and sold. The conventional studies have been mainly on how to modify the polyolefin to improve the compatibility and dispersibility with the polyamide. The selection of modifiers with functional groups was an important point. As a modified polyolefin known so far, Japanese Patent Publication No. 42-1254
Representative examples include modified polyolefins obtained by introducing a compound having a carboxylic acid group or an acid anhydride group by a copolymerization or grafting method as described in JP-B No. 6 and JP-B-55-44108. In these prior examples, a method of blending the modified polyolefin prepared in advance with the polyamide and kneading as described above is disclosed,
In the case of such a method, one of the necessary conditions is that the modified polyolefin rubber is basically not crosslinked because fine dispersion in the polyamide matrix proceeds well (for example, JP-B-55). -44108, modified polyolefin properties).

Further, an unsaturated carboxylic acid or its anhydride and a peroxide are present at the time of kneading the polyamide and the polyolefin,
A method for obtaining a polyamide composition simultaneously with modification of polyolefin (JP-A-60-49018) or a method for melt-kneading a polyamide and an ethylene / unsaturated carboxylic acid copolymer in the presence of a peroxide (JP-A-55) -125153) and the like, and it is described that each is effective as a technology for increasing the viscosity of low water absorption nylon resin and waste fiber products.

<Problems to be Solved by the Invention> However, JP-A-60-49018 and JP-A-55-125153
It has been found that the method disclosed in Japanese Patent Publication increases melt viscosity and often causes cross-linking to deteriorate fluidity during molding. This is one of the reasons that the polyolefin is easily cross-linked by a peroxide as described in JP-A-55-125153, but further, the polyolefin is an unsaturated carboxylic acid or its anhydride. It has been found that when modified, the polyamide is likely to participate in the reaction with the polyolefin, resulting in an extremely low fluidity of the entire composition. Further, in the above method, if the crosslinking of the polyolefin progresses faster than the polyolefin is finely dispersed in the polyamide, the dispersion may be poor and the impact resistance of the molded article may be deteriorated or the appearance may be deteriorated. Is one.

In other words, the method in which a modifier and a peroxide are present at the time of kneading a polyamide and a polyolefin to obtain a composition at the same time as the modification of the polyolefin is effective as a relatively low-cost manufacturing process, but the process stability and molding fluidity are improved. However, a composition excellent in both physical properties such as impact strength has not yet been obtained, and under the present circumstances, technical development of a method for obtaining a resin composition having these properties is desired.

<Means for Solving Problems> In the method of obtaining a composition at the same time as modifying a polyolefin by allowing a modifier and a peroxide to be present at the time of kneading a polyamide and a polyolefin, the inventors of the present invention can improve molding fluidity and physical properties. Examination of stable production of an excellent composition revealed that by using a very limited amount of both an unsaturated amide compound and an unsaturated carboxylic acid or an anhydride thereof as a modifier, it was not previously known. The inventors have found that a resin composite can be obtained in which the molecular chains of polyamide and modified polyolefin are entangled with each other, and have reached the present invention.

That is, the present invention is based on 100 parts by weight of a mixture of (A) 50 to 95% by weight of a polyamide resin having 6 or more carbon atoms per amide group and (B) 5 to 50% by weight of (C) α, β-unsaturated amide compound 0.02 to 5 parts by weight,
(D) 0.01 to 3 parts by weight of α, β-unsaturated carboxylic acid compound or its anhydride and (E) 0.001 to 0.8 of organic peroxide
The present invention provides a method for producing a resin composite, which comprises melt-kneading a mixture of parts by weight.

The features of the present invention are summarized as follows.

(1) When melt kneading a polyamide and a polyolefin, a specific amount of a specific unsaturated amide compound, an unsaturated carboxylic acid compound or an anhydride thereof, and an organic peroxide are present so that mechanical properties such as molding fluidity and impact strength can be improved. A resin composite having excellent physical properties can be stably manufactured.

(2) The point of the present technology is that both the amide compound and the carboxylic acid derivative are used as the modifier of the polyolefin in limited amounts, and the purpose cannot be achieved with either modifier.

(3) A method of using at least two kinds of modifiers and kneading and blending with a polyamide at the same time as modifying the polyolefin has not been known.

(4) In this method, the polyolefin is partially cross-linked, but in the process of kneading with the polyamide, the crosslinking progresses in parallel with the modification, so that the dispersion in the polyamide matrix is not hindered, resulting in fine phase separation. A structure is obtained. The partially crosslinked modified polyolefin falls into the category that has been excluded as ineffective in the prior art and is specific from this viewpoint, and the novelty and effectiveness of the present method are in this respect.

(5) Since the partial crosslinking of the above-mentioned polyolefin proceeds in the polyamide matrix, the polyamide molecular chain and the polyolefin molecular chain are entangled with each other, but in this method, the modification of the polyolefin is mainly made with an amide compound, so that the reaction with the polyamide is suppressed. There is an advantage that overall liquidity does not deteriorate.

(6) That is, the resin composite as referred to in the present invention means not a mixture but a structure in which the molecular chains of polyamide and polyolefin are intertwined with each other with almost no reaction, and a so-called interpenetrating polymer network structure ( In
terpenetrating Polymer Networks). Therefore, it is considered that mechanical properties such as impact strength are improved while maintaining good fluidity. This resin composite offers a new concept in the field of polyamides and modified polyolefins. The polyamide (A) used in the present invention is not particularly limited as long as it has 6 or more carbon atoms per amide group, and means any melt-moldable polymer composed of amino acid, lactam or diamine and dicarboxylic acid. Examples of constituent components include amino acids such as 6-aminocaproic acid, 11-aminoundecanoic acid, 12-aminododecanoic acid and para-aminomethylbenzoic acid, ε-caprolactam, ω-laurolactam and the like lactams, tetramethylenediamine and hexamethylene. Diamine, undecamethylenediamine, dodecamethylenediamine, 2,2,4- / 2,4,4-trimethylhexamethylenediamine, 5-methylnonamethylenediamine, methixylylenediamine, paraxylylenediamine, 1,3- Bis (aminomethyl) cyclohexane, 1,4-
Bis (aminomethyl) cyclohexane, 1-amino-3
-Aminomethyl-3,5,5-trimethylcyclohexane,
Bis (4-aminocyclohexyl) methane, bis (3-
Methyl-4-aminocyclohexyl) methane, 2,2-bis (4-aminocyclohexyl) propane, bis (aminopropyl) piperazine, aminoethylpiperazine and other diamines and adipic acid, suberic acid, azelaic acid,
Sebacic acid, dodecadioic acid, terephthalic acid, isophthalic acid, 2-chloroterephthalic acid, 2-methylterephthalic acid, 5-methylisophthalic acid, 5-sodiumsulfoisophthalic acid, hexahydroterephthalic acid, hexahydroisophthalic acid, diglycolic acid Can be selected from dicarboxylic acids such as Polyamides particularly useful in the present invention include polycaproamide (nylon 6), polyhexamethylene adipamide (nylon 66), polyhexamethylene sebacamide (nylon 610), polyhexamethylene dodecamide (nylon 612), Examples include undecane amide (nylon 11), polydodecane amide (nylon 12), copolyamides of these, and mixed polyamides. There is no limitation on the degree of polymerization of the polyamide used here, and a polyamide having a relative viscosity within the range of 1.5 to 5.0 can be arbitrarily selected. There is also no particular limitation on the method for producing the polyamide,
It can be prepared by a conventionally known method such as melt polymerization or solid phase polymerization.

The (B) polyolefin used in the present invention is basically a non-polar polymer having no functional group and has an α of 2 to 20 carbon atoms.
-Olefins and dienes such as ethylene, propylene, butene-1, pentene-1, 4-methylpentene-
1, isobutylene, 1,4-hexadiene, dicyclopentadiene, 2,5-norbornadiene, 5-ethyl-2,5-
Norbornadiene, 5-ethylidene norbornene, 5
It is a polymer having (1'-propenyl) -2-norbornene, butanediene, isoprene, chloroprene and the like as main constituent components.

As the copolymerization component, an unsaturated amide compound, a functional group-containing component other than unsaturated carboxylic acid and unsaturated acid anhydride can be used, and examples thereof include acrylic acid ester, methacrylic acid ester, acrylic acid metal salt, and meta. Acrylic acid metal salts and the like can be generally mentioned.

Specific examples of the polyolefin particularly useful in the present invention include polyethylene, polypropylene, polybutene, poly (4-
Methyl pentene-1), poly (ethylene / propylene), poly (ethylene / butene-1), poly (ethylene / propylene / 1,4-hexadiene), poly (ethylene /
Propylene / dicyclopentadiene), poly (ethylene / propylene / 2,5-norbornadiene), poly (ethylene / propylene / 5-ethylidene norbornene) and the like. The degree of polymerization of the polyolefin is not particularly limited, and one having a melt index within the range of 0.05 to 50 g / 10 minutes can be arbitrarily selected. The method for producing the polyolefin is also not limited, and known methods such as a high pressure radical polymerization method, a low pressure catalyst method and a solution polymerization method can be adopted.

In the present invention, (A) polyamide resin 50 to 95% by weight, preferably 55 to 93% by weight, more preferably 60 to 90% by weight and (B) polyolefin 5 to 50% by weight, preferably 7 to
It is used in a proportion of 45% by weight, more preferably 10-40% by weight. If the compounding ratio is out of this range, the desired balance of physical properties such as impact strength and rigidity cannot be achieved, which is not preferable.

Examples of the (C) α, β-unsaturated amide compound used in the present invention include acrylamide, N-methyl acrylamide, N-ethyl acrylamide, N-propyl acrylamide, N-butyl acrylamide, N-octyl acrylamide and N-. Stearyl acrylamide, N-methylol acrylamide, N-hydroxymethyl acrylamide, N-cyanoethyl acrylamide, N-phenyl acrylamide, N-tolyl acrylamide, N, N
-Dimethyl acrylamide, N, N-diethyl acrylamide, N-methyl-N-ethyl acrylamide, diacetone acrylamide, methacrylamide, N-methyl methacrylamide, N-ethyl methacrylamide,
N-propylmethacrylamide, N-butylmethacrylamide, N-stearylmethacrylamide, N-
Examples include methylol methacrylamide, N-hydroxymethyl methacrylamide, N-cyanoethyl methacrylamide, N-phenyl methacrylamide, N-benzyl methacrylamide, N, N-dimethyl methacrylamide, and N, N-diethyl methacrylamide. The unsaturated amide compound that can be preferably used in the present invention has a melting point of
Those having a temperature of 180 ° C. or lower and a boiling point of 200 ° C. or higher at atmospheric pressure are preferable, and acrylamide and methacrylamide are particularly suitable compounds.

Examples of the (D) α, β-unsaturated carboxylic acid compound or its anhydride used in the present invention include acrylic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, crotonic acid, methylmaleic acid and methylfumaric acid. Acids, mesaconic acid, citraconic acid, glutaconic acid, methyl hydrogen maleate, ethyl hydrogen maleate, butyl hydrogen maleate, methyl hydrogen itaconate, ethyl hydrogen itaconate, maleic anhydride, itaconic anhydride, citraconic anhydride, etc. . The unsaturated carboxylic acid derivative also has a melting point of 180 ° C. or lower, and a boiling point of 200 ° C. or higher at normal pressure can be preferably used, and particularly acrylic acid, methacrylic acid, maleic acid, fumaric acid, methyl hydrogen maleate, anhydrous Suitable compounds are maleic acid and itaconic anhydride.

Examples of the (E) organic peroxide used in the present invention include cumene hydroperoxide, t-butyl cumyl peroxide, di-t-butyl peroxide, and 2,5-dimethyl-2,5-di ( t-butylperoxy) hexane, 2,5-
Dimethyl-2,5-di (t-butylperoxy) hexyne- (3), 2,5-dimethylhexane-2,5-dihydroperoxide, t-butyl hydroperoxide, di-isopropylbenzene hydroperoxide , P-methane hydroperoxide, 1,1-bis-t-butylperoxy-3,3,5-trimethylcyclohexane, n-butyl-4,4-bis-t-butylperoxyvalerate, t-
Butyl peroxybenzoate and the like.

In the present invention, it is necessary to rapidly decompose at the melt-kneading temperature, and an organic peroxide having a half-life of 1 minute in the range of 150 to 250 ° C. is preferably used. When the decomposition temperature is out of the above range, the handling risk is too high, and the modification of the polyolefin is not effective, which is not preferable.

In the present invention, 0.02 to 5 parts by weight of (C) α, β-unsaturated amide compound is added to 100 parts by weight of (A) polyamide resin having 6 or more carbon atoms per amide group and (B) polyolefin resin. Part, preferably 0.05 to 3 parts by weight, more preferably 0.07 to 1 part by weight, 0.01 to 3 parts by weight, preferably 0.02 to 1 part by weight of (D) α, β-unsaturated carboxylic acid compound or its anhydride, More preferably 0.05 to 0.8
Parts by weight and 0.001 to 0.8 parts by weight of (E) organic peroxide,
Preferably 0.004 to 0.5 parts by weight, more preferably 0.008
Approximately 0.2 parts by weight is added and the mixture is melt-kneaded. α, β-Unsaturated amide compound and α, β-
When the addition amount of the modifier of the unsaturated carboxylic acid derivative is less than the lower limit value described above, the compatibility between the polyamide and the polyolefin is poor and the physical properties such as impact strength are deteriorated, which is not preferable. On the other hand, when the amount of the modifier added exceeds the above upper limit, not all of it is consumed for modification of the polyolefin, and the residue bleeds out on the surface of the molded article to impair the appearance, and the stability of the polyolefin decreases. Undesirable phenomena occur. In particular, one feature of the present invention is that (C) α, β-unsaturated amide compound and (D) α, β-unsaturated carboxylic acid compound or their anhydrides are used in combination. The unsaturated amide compound is effective in improving the compatibility of the polyolefin with the polyamide, and has the effect of suppressing the crosslinking of the entire composite and not deteriorating the molding fluidity. The unsaturated carboxylic acid derivative is involved in the reaction between the polyolefin and the polyamide, and if the fixation of the polyolefin in the polyamide matrix is not sufficient, the spinnability of the melt-kneading gut is poor and the production operability is deteriorated. When the amount of the acid derivative added is too large, the polyolefin and the polyamide react with each other to crosslink the polyolefin, resulting in extremely poor fluidity as a whole. Therefore, α, β-unsaturated amide compound and α,
The β-unsaturated carboxylic acid compound or its anhydride has different role expectations, and a valuable product can be produced only when both exist.

The resin composite as referred to in the present invention is a structure of a concept different from a composition in which a mixture of a polyamide and a polyolefin or a modified polyolefin and a polyamide are partially reacted as described above, and a molecular chain of the polyamide and the polyolefin. It is called a complex because it is a structure that is intertwined with each other. However, the details of the structure are not always clear, but only by the method of the present invention, that is, the method of modifying the polyolefin with a peroxide using at least two specific modifiers and at the same time blending with the polyamide. It is created.
The proof of the existence of the complex structure can be shown by the solubility in a solvent. For example, when the infrared absorption spectrum of the residue was examined by dissolving and removing the polyamide part of the extruder kneaded product obtained by the method of the present invention with a solvent such as metacresol, the residue was both a polyolefin and a polyamide. It was found that there is a polyamide which is not dissolved and removed by this operation. That is, this residue is considered to have a structure in which polyamide molecular chains and polyolefin molecular chains are entangled with each other.

In the method of the present invention, the polyolefin is partially crosslinked during the kneading process. The degree of crosslinking can also be represented by the solubility in a solvent. Even a poly (ethylene / propylene) copolymer completely soluble in a solvent such as toluene before melt-kneading with a polyamide has a crosslinked product having a solvent-insoluble portion when dispersed in a polyamide matrix by the method of the present invention. It was found from the next experiment that That is, the poly (ethylene / propylene) copolymer remaining after hydrolyzing and removing the polyamide with hydrochloric acid is not completely dissolved in toluene, and a crosslink insoluble portion exists. According to the method of the present invention, it has become possible to finely disperse a partially crosslinked modified polyolefin, which has not been considered in the conventional common sense, in a polyamide matrix. By cross-linking the rubber component, the impact resistance and the rigidity are further improved, and a material having extremely high practical value is obtained.

The resin composite produced by the method of the present invention comprises polyamide and polyolefin pellets, powders, flakes, etc.
-Unsaturated amide compound, α, β-unsaturated carboxylic acid compound or anhydride thereof, and organic peroxide are pre-mixed and supplied by a single-screw or multi-screw extruder having sufficient kneading power and melted. The most common method is kneading. The physical properties of the resin composite of the present invention, other components unless impairing the moldability, such as pigments, dyes, reinforcing materials, fillers,
Heat-resistant agents, antioxidants, weathering agents, lubricants, crystal nucleating agents, anti-blocking agents, release agents, plasticizers, flame retardants, antistatic agents,
The resin composite produced by the method of the present invention to which other polymer or the like can be added and introduced should be subjected to molding used for ordinary thermoplastic resins such as injection molding, extrusion molding, suction molding, and compression molding. Thus, a molded product having a good balance of mechanical properties can be obtained, and these molded products are useful as various automobile parts, mechanical parts, electric / electronic parts, general sundries and the like.

<Examples> The present invention will be described in more detail with reference to Examples.

The properties of the polymers and molded articles described in Examples and Comparative Examples were evaluated by the following methods.

(1) Relative viscosity of polyamide: JIS K6810 (2) Melt index: JIS K7210 (3) Tensile property: ASTM D638 (4) Bending property: ASTM D790 (5) Izod impact strength: ASTM D256 (6) Injection molding fluidity Example 1 Evaluated by spiral flow length Example 1 ε-caprolactam was melt-polymerized to prepare nylon 6 having a relative viscosity of 3.10. 75 mol% ethylene and propylene
Polymerization of 25 mol% mixture melt index 7g / 10
Min poly (ethylene / = propylene) copolymer was prepared. 0.5 parts by weight of acrylamide, 0.3 parts by weight of maleic anhydride and 100 parts by weight of nylon 6 75% by weight and poly (ethylene / propylene) copolymer 25% by weight, and
After adding 0.1 parts by weight of 2,5-dimethyl-2,5-di (t-butylpaoxy) hexyne- (3) and premixing the whole, melt kneading at 250 ° C using a twin-screw extruder with a diameter of 60 mm. And pelletized. The spinnability of the gut discharged from the extruder was extremely stable, and the gut was hardly broken even after continuous operation for a long time.

The pellets obtained here were processed by the following two methods and subjected to infrared absorption spectrum analysis and dissolution test.

(1) The pellet was treated with hydrochloric acid to hydrolyze the nylon portion, and the infrared absorption spectrum of the residue was shown in FIG. The residue is 1,460cm ^-1, 1,380cm ^-1, absorption was observed at 710 cm ^-1, modified poly found to be (ethylene / propylene) copolymer. In addition, since this residual modified poly (ethylene / propylene) copolymer was not completely dissolved in toluene, it was found that it was partially crosslinked in the compounding process. It was separately confirmed that the polymer was completely dissolved in toluene and that partial crosslinking did not occur due to the treatment with hydrochloric acid.

(2) An attempt was made to dissolve and remove the nylon portion by treating the pellet with meta-cresol. This operation was repeated many times, and the infrared absorption spectrum of the residue was shown in FIG.
This residue is 3,300 cm ^-1 , which is the characteristic absorption of nylon 6,
1,640cm ^-1, 1,460cm ^-1 which is the characteristic absorption of an 1,550Cm ^-1 and polyolefins, 1,380cm ^-1, the absorption of 710 cm ^-1 is observed. That is, there was a nylon 6 portion that could not be completely removed by dissolving this meta-cresol, and it was speculated that this was a composite structure in which the nylon 6 molecular chain and the polyolefin molecular chain were entangled with each other.

Next, after vacuum-drying the pellets obtained here, a test piece was molded with an injection molding machine, and the fluidity at the time of molding and the physical properties of the obtained test piece were measured. It turned out to be a material with high practical value.

Comparative Example 1 Based on 100 parts by weight of the poly (ethylene / propylene) copolymer used in Example 1, 2.0 parts by weight of acrylamide, 1.2 parts by weight of maleic anhydride and 2,5-dimethyl-2,5-di (t-
After adding 0.4 parts by weight of butylperoxy) hexyne (3) and mixing, the mixture was kneaded at 250 ° C. using an extruder having a diameter of 40 mm. Modified poly (ethylene / propylene) obtained here
It was found that the copolymer was not completely dissolved in toluene and was crosslinked.

To the nylon 6 used in Example 1, 25% by weight of this crosslinked modified poly (ethylene / propylene) copolymer was added and mixed, and then compounded under the same conditions as in Example 1, and then the injection molded test piece was prepared. The physical properties were evaluated. The result is first
As shown in the table, in the method of mixing and kneading the crosslinked polyolefin with nylon, it was found that the dispersibility of the polyolefin was poor, the impact strength was unsatisfactory, and the surface appearance of the molded product was not good. As shown in the figure, it was found to be inappropriate unless compounding with nylon proceeded in parallel with denaturation.

Comparative Examples 2 to 5 Extruder kneading and evaluation of physical properties of injection molded test pieces were carried out in the same manner as in Examples except that the amounts of acrylamide and maleic anhydride used in Example 1 were changed as shown in Table 1. It has been found that when the addition amount of the modifier is out of the range specified in the present invention, the ejection stability from the extruder is poor, and the injection molding fluidity and mechanical properties are deteriorated, which is not preferable.

Examples 2 to 15 Polyamide, polyolefin, modifier, type of peroxide and peroxide, compounding amount and the like are changed, and the same operation as in Example 1 is performed to perform discharge stability from an extruder, injection molding fluidity and molding test piece. Was evaluated and the results shown in Table 2 were obtained. It was found that in any of the cases described in Table 2, a composite having excellent extrusion workability, injection molding fluidity and physical properties was obtained.

Note) a) Polyamide N-6: Polycaproamide, N-66: Polyhexamethylene adipamide, N-610: Polyhexamethylene sebacamide,
N-612: polyhexamethylene dodecamide, N-12: polydodecanamide, N-6 / 66 (85/15): poly (caproamide / hexamethylene adipamide) copolymer (% by weight), N-6 / 66 (10/90): Same as above, N-6 / 12 (80/20):
Poly (caproamide / dodecane amide) copolymer (% by weight), N-6I: polyhexamethylene isophthalamide,
N-MXD6: Polymeta-xylylene adipamide, N-PACM12:
Polybis (4-aminocyclohexyl) methane dodecamide, N-TMDT: polytrimethylhexamethylene terephthalamide, N-12T: polydodecamethylene terephthalamide, N-6I / PACMT (50/50): poly (hexamethylene isophthalamide / Bis (4-aminocyclohexyl) methane terephthalamide) copolymer (wt%).

b) Polyolefin E / PP: poly (ethylene / propylene) copolymer (80/20 mol%), PP: polypropylene, PMP: poly (4-methylpentene-1), PE: polyethylene, E / BT: poly ( Ethylene / butene-1) copolymer (85/15 mol%), E / PP / DCPD:
Poly (ethylene / propylene / dicyclopentadiene)
Copolymer (70/20/10 mol%), E / PP / ND: poly (ethylene / propylene / nobornadiene) copolymer (65/25/10 mol%), E / PP / EN: poly (ethylene / Propylene / 5-ethyldennorbornene) copolymer (70/25/5 mol%).

<Effect of the Invention> According to the present invention, injection molding fluidity and mechanical properties are improved by performing melt-kneading with a polyamide at the same time as modifying a polyolefin in the presence of at least two kinds of specific modifiers and an organic peroxide. It has become possible to produce excellent materials.
Moreover, the material obtained by the method of the present invention is that the cross-linked polyolefin is uniformly and finely dispersed in the polyamide matrix, and the modification and cross-linking of the polyolefin proceed in the presence of the polyamide, so that the molecular chain of the polyamide and the molecule of the polyolefin are Two points that a complex structure in which chains are entangled with each other are formed have not been known so far. In this regard, the present invention can provide a method of manufacturing a new concept material.

[Brief description of drawings]

FIG. 1 is an infrared absorption spectrum diagram of the hydrochloric acid-treated residue of the pellet obtained in Example 1, and FIG. 2 is an infrared spectrum diagram of the meta-cresol-treated residue of the pellet.

Claims (1)

[Claims] 1. A mixture of 50 to 95% by weight of polyamide resin having 6 or more carbon atoms per amide group and 5 to 50% by weight of (B) polyolefin (C) α, β.
-Unsaturated amide compound 0.02 to 5 parts by weight, (D) α, β-
A process for producing a resin composite, which comprises melt-kneading a mixture of 0.01 to 3 parts by weight of an unsaturated carboxylic acid compound or an anhydride thereof and 0.001 to 0.8 parts by weight of (E) an organic peroxide.