JPS63146962A - Production of resin composite - Google Patents

Abstract

PURPOSE:To produce a resin composite with polyamide and denatured polyolefin molecular chains entangling each other by kneading polyamide and polyolefin in the presence of an unsaturated amide and specified amounts of denaturant and a peroxide. CONSTITUTION:100pts.wt. of a mixture comprising (A) 50-95wt%, preferably 60-90wt% of polyamide such as nylon 6 and (B) 5-50wt%, preferably 10-40wt% of polyolefin are melt-kneaded with (C) 0.02-5pts.wt. of an alpha,beta-unsaturated amide such as acrylamide, (D) 0.01-3pts.wt. of an alpha,beta-unsaturated carboxylic acid or its anhydride such as acrylic acid and (E) 0.001-0.8pt.wt. of an organic peroxide such as cumene peroxide.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> 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, there has been active research into improving the impact strength of polyamide resins and expanding their applications. The method usually adopted for this purpose is to prepare a modified polyolefin rubber by introducing a functional group into EPR or EPDM rubber, and then melt blend the modified polyolefin rubber with a polyamide resin. Yes, impact-resistant nylon resins that actually have practical value are being manufactured and sold. Previous studies have mainly focused on how to modify polyolefins to improve their compatibility and dispersibility with polyamides. The important point was the selection of a modifier with a functional group. Modified polyolefins known so far include copolymerization or grafting of compounds having carboxylic acid groups or acid anhydride groups, as described in Japanese Patent Publication No. 42-12546 and Japanese Patent Publication No. 55-44108. Typical examples include modified polyolefins introduced by this method. These prior examples disclose a method of blending and kneading a modified polyolefin prepared in advance with polyamide as described above, or in the case of such a method, fine dispersion into the polyamide matrix proceeds successfully. One of the requirements for modified polyolefin rubber is that it is basically not crosslinked (for example, characteristics of modified polyolefin in Japanese Patent Publication No. 55-44108@).

In addition, there is a method in which an unsaturated carboxylic acid or its anhydride and peroxide are present during kneading (of polyamide and polyolefin) to obtain a polyamide composition at the same time as modifying the polyolefin (Japanese Unexamined Patent Publication No. 60-49018). A method of melt-kneading and ethylene/unsaturated carboxylic acid copolymer in the presence of peroxide (Japanese Patent Application Laid-Open No. 12515-1983)
Publication No. 3), etc., are known, and are described as being effective as techniques for increasing the viscosity of low water absorption nylon resins and textile waste products.

〈Problem that the invention seeks to solve〉 However, JP-A! It has been found that the methods disclosed in ``Z60-49018 and JP-A-55-125153 increase the melt viscosity, often causing crosslinking and deteriorating the fluidity during molding. Kaisho 55-12
As stated in Publication No. 5153, this is because polyolefins are easily crosslinked by peroxides, but more commonly polyolefins are modified with unsaturated carboxylic acid moieties or their anhydrides. It has been found that in some cases, the polyamide tends to participate in the reaction with the polyolefin, and as a result, the fluidity of the entire composition is extremely reduced. Furthermore, in the above method, if the crosslinking of the polyolefin progresses faster than the polyolefin is finely dispersed in the polyamide, dispersion may become insufficient, resulting in a decrease in the impact strength and appearance of the molded product, which is also an issue that needs to be resolved. It is one.

In other words, a method in which a modifier and peroxide are present during kneading (of polyamide and polyolefin) to obtain a composition at the same time as modifying the polyolefin is effective as a relatively low-cost manufacturing process. Liquidity,
A composition with excellent physical properties such as impact resistance strength = 2 - has not yet been obtained, and it is desired to develop a method for obtaining a resin composition having both of these properties.

Means for Solving the Problems> The present inventors have developed a method in which a modifier and peroxide are present at the time of mixing polyamide and polyolefin to obtain a composition at the same time as modifying the polyolefin, improving molding fluidity and physical properties. When we investigated how to stably produce an excellent composition, we discovered that by using both an unsaturated amide compound and an unsaturated carboxylic acid or its anhydride as modifiers in very limited quantities, we could create a composition that was previously unknown. The present invention was achieved by discovering that a resin composite in which molecular chains of polyamide and modified polyolefin are entangled with each other can be obtained.

That is, the present invention provides 0.02 to 0.02 to 100 parts by weight of (C) α,β-unsaturated amide compound to 100 parts by weight of a mixture of (8) 50 to 95% by weight of polyamide resin and (B) 5 to 50% by weight of polyolefin. 5 parts by weight, (D) = 4 - α, β-unsaturated carboxylic acid compound or its anhydride 0.
01-3 parts by weight and ([)organic peroxide 01001-
The present invention provides a method for producing a resin composite, which comprises melting and kneading 0.8 parts by weight of a mixture.

The features of the present invention are summarized as follows.

(1) The presence of a specific amount of a specific unsaturated amide compound, unsaturated carboxylic acid compound or its anhydride, and organic peroxide during melt-kneading of polyamide and polyolefin improves mechanical properties such as molding fluidity and impact strength. Resin composites with excellent physical properties can be produced stably.

(2) The key point of the present technology is that both an amide compound and a carboxylic acid derivative are used in limited amounts as modifiers for polyolefins, and the purpose cannot be achieved using only one modifier.

(3) A method of kneading and blending at least two types of modifiers into a polyamide at the same time as modifying the polyolefin has not been known so far.

(4) In this method, the polyolefin is partially crosslinked, or crosslinking progresses simultaneously with modification during the kneading process with the polyamide, resulting in fine phase separation without hindering dispersion into the polyamide matrix. You can get a structure.

Partially crosslinked modified polyolefins fall into a category that has been excluded as ineffective in the prior art, and from this point of view, the deviation is specific, and the novelty and effectiveness of the present method lies in this point.

(5) Partial crosslinking of the polyolefin proceeds in the polyamide matrix, so that the polyamide molecular chains and polyolefin molecular chains become entangled; however, in this method, the polyolefin is modified mainly with an amide compound, so the reaction with the polyamide is suppressed. This has the advantage that overall liquidity does not deteriorate.

(6) In the present invention, the resin composite is not just a mixture, but also a structure in which the molecular chains of polyamide and polyolefin are intertwined with each other with almost no reaction, a so-called interpenetrating polymer network structure. Body (I
inter'-penetrating Polymer
It is estimated that it is similar to ``Networks''. This is thought to improve mechanical properties such as impact strength while maintaining good fluidity. This resin composite provides a novel concept in the field of polyamides and modified polyolefins.

(A) Polyamide used in the present invention is not particularly limited,
Refers generally to melt-formable polymers composed of amino acids, lactams, or diamines and dicarboxylic acids.

Examples of constituent components are 6-aminocaproic acid, 11-
Amino acids such as aminoundecanoic acid, 12-aminododecanoic acid, para-aminomethylbenzoic acid, lactams thereof such as ε-caprolactam, ω-21 larolactam, tetramethylenediamine, hexamethylenediamine, undecamethylenediamine, dodecamethylenediamine, 2.2 .4-
/2,4.4-trimethylhexamethylenediamine,
5-methylnonamethylenediamine, metaxylylenediamine, para-7=xylylenediamine, 1,3-bis(amitumedel)cyclohexane, 1. /l-bis(amitumedel)cyclohexane, 1-amino-3-amitumedel-3,5,5
-trimethylcyclohexane, bis(4-aminocyclohexyl)methane, bis(3-methyl-4-aminocyclohexyl)methane, 2,2-bis(4-aminocyclohexyl)propane, bis(aminopropyl)piperazine, amino Diamines such as ethylpiperazine and adipic acid, suberononic acid, azelaic acid, sebacic acid, dodecadionic acid, terephthalic acid, isophthalic acid, 2-talolothyrephthalic acid, 2-methylterephthalic acid, 5-methylisophthalic acid, 5-sodium sulfonate It can be selected from dicarboxylic acids such as isophthalic acid, hexahydroterephthalic acid, hexadidroisophthalic acid, diglycolic acid and the like. Polyamides particularly useful in the present invention include polycaproamide (nylon 6), polyhexamethylene diamine (nylon 66), polyhexamethylene diamine (nylon 6-ρ-10), polyhexamethylene diamine (nylon 612).
>, polyundecaneamide (nylon 11), polydodecanamide (nylon 12), copolyamides thereof, and mixed polyamides. There is no limit to the degree of polymerization of the polyamide used here, and the relative viscosity is 1.5.
5.0 can be arbitrarily selected.

There is no particular restriction on the method for producing polyamide, and it can be prepared by conventionally known methods such as melt polymerization and solid phase polymerization.

The polyolefin (B) used in the present invention is basically a non-polar polymer without functional groups, and is an α-olefin or diene having 2 to 20 carbon atoms, such as ethylene, propylene, butene-1, pentene-1,4 -Methylpentene-
1, isobutylene, 1,4-hexadiene, dicyclopentadiene, 2,5-norbornadiene, 5-ethyl-
It is a polymer whose main constituents include 2,5-norbornadiene, 5-ethylidenenorbornene, 5-(1-propenyl>-2-norbornene, butanediene, isoprene, and polypropylene).

Functional group-containing components other than unsaturated amide compounds, unsaturated carboxylic acids, and unsaturated acid anhydrides can be used as copolymerization components, and examples of these include acrylic esters, methacrylic esters, and -1' metal acrylates. Salts, methacrylic acid metal salts, etc. can be generally mentioned.

Specific examples of polyolefins particularly useful in the present invention include polyethylene, polypropylene, polybutene, poly(4-
Methylpentene-1), poly(ethylene/propylene)
, poly(ethylene/butene-1), poly(ethylene/propylene/1,4-hexadiene), poly(ethylene/butene-1),
Examples include poly(ethylene/propylene/2,5-norporin), poly(ethylene/propylene 15-ethylidene norbornene), and the like.

There is no particular restriction on the degree of polymerization of the polyolefin, and polyolefins having a melt index usually within the range of 0.05 to 509/10 minutes can be arbitrarily selected.

Furthermore, there are no restrictions on the method for producing polyolefin, and known methods such as high-pressure radical polymerization, low-pressure catalysis, and solution polymerization can be employed.

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

Examples of the α,β-unsaturated amide compound (C) used in the present invention are acrylamide, N-methylacrylamide, N-ethylacrylamide, N-propylacrylamide, N-butylacrylamide, N-octylacrylamide, N- Stearylacrylamide, N-methylolacrylamide, N-hydroxymethylacrylamide, N-cyanoedylacrylamide, N-phenylacrylamide, N-tolylacrylamide 1, N
, N-dimethylacrylamide, N,N-diethylacrylamide, N-methyl-N-ethylacrylamide,
Diacetone acrylamide, methacrylamide, N-
Methylmethacrylamide, N-ethylmethacrylamide, N-propylmethacrylamide, N-butylmethacrylamide, N-stearylmethacrylamide, N-medyrolmethacrylamide, N-hydroxymethylmethacrylamide, N-cyanoethylmethacrylamide, N -phenylmethacrylamide, N-benzylmethacrylamide, N,N-dimethylmethacrylamide, N,N-diethylmethacrylamide, etc. The unsaturated amide compound preferably used in the present invention has a melting point of 180'C or less and a boiling point of 20'C or less at normal pressure.
0'C or higher is preferable, and acrylamide, methacrylamide, etc. are particularly suitable compounds.

-191 Examples of (D) α,β-unsaturated carbonic acid compounds or anhydrides thereof used in the present invention include acrylic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, crotonic acid, and methylmaleic acid. acid, methyl fumaric acid, mesaconic acid, silaconic acid, glutaconic acid, methyl hydrogen maleate, ethyl hydrogen maleate, butyl hydrogen maleate,
These include methyl hydrogen itaconate, ethyl hydrogen itaconate, maleic anhydride, itaconic anhydride, and citraconic anhydride. The melting point of unsaturated carboxylic acid derivatives is also 180'.
C or less and whose boiling point is 200'C or more at normal pressure can be preferably used, and acrylic acid, methacrylic acid, maleic acid, fumaric acid, methyl hydrogen maleate, maleic anhydride, itaconic anhydride, etc. are particularly suitable. It is a compound.

Examples of the organic peroxide (E) used in the present invention include cumene hydroperoxide, ↑-butylcumyl peroxide, Z-butyl peroxide, 2,5-dimethyl-2,5-di(1 -butylperoxy)hexadi,
2,5-dimethyl-2,5-di(t-butylperoxy)hexyne-(3), 2,5-dimethylhexane-2
, 5-cybidroba-oxide, t-butyl hydroperoxide, di-isopropylbenzene hydroperoxide, p-methane hydroperoxide, 1,1-his-t-butylperoxy-3,3゜5- These include trimethylcyclohexane, n-butyl-4,4-bis-t-butylperoxyvalerate, and t-butylperoxybenzoate.

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 within the range of 150 to 250'C is preferably used. If the decomposition temperature is outside the above range, it is not preferable because the danger during handling is too high or the polyolefin may not be effectively modified.

In the present invention, (C) α, β-
0.02 to 5 parts by weight of an unsaturated amide compound, preferably 0.05 to 3 parts by weight, more preferably 0.07 to 1 part by weight, (D) an α,β-unsaturated carboxylic acid compound or its anhydride; 0.01 to 3 parts by weight, preferably 0.02 to 3 parts by weight
1 part by weight, more preferably 0.05 to 0.8 parts by weight, and (E) 0.001 to 0.8 parts by weight of organic peroxide,
It is preferable to add 4 to 0.5 parts by weight of O9O, preferably 0.008 to 0.2 parts by weight, and then melt-knead the mixture. If the amount of the modifier of α,β-unsaturated amide compound and α,β-unsaturated carboxylic acid derivative is less than the above lower limit, the compatibility between polyamide and polyolefin will be poor and physical properties such as impact strength will be low. This is not desirable. On the other hand, if the amount of modifier added exceeds the above upper limit, not all of the modifier will be consumed for modifying the polyolefin, and the residual material will bleed out onto the surface of the molded product, impairing the appearance or reducing the stability of the polyolefin. An undesirable phenomenon occurs. In particular, the present invention provides (C) α
, a β-unsaturated amide compound and ([)) α,β-unsaturated silubonic acid compound or anhydride thereof are used together. The unsaturated amide compound is effective in improving the compatibility of polyolefin with polyamide, and has the effect of suppressing crosslinking of the entire composite so as not to deteriorate molding fluidity. Unsaturated carboxylic acid derivatives are involved in the reaction between polyolefin and polyamide, and if the polyolefin is not sufficiently fixed in the polyamide matrix, the spinnability of melt-kneaded cuts will be poor and production operability will deteriorate. If the amount of acid derivative added is too large, crosslinking of the polyolefin will occur as the polyolefin and polyamide react, resulting in extremely poor overall fluidity. Therefore, an α,β-unsaturated amide compound and an α,β-unsaturated carbonic acid compound or its anhydride each have different expected roles, and a valuable product can only be produced if both are present.

As mentioned above, the resin composite referred to in the present invention is a structure with a different concept from simply a mixture of polyamide and polyolefin or a composition in which modified polyolefin and polyamide are partially reacted. The name composite comes from the meaning of a structure in which polyamide and polyolefin molecular chains are intertwined with each other. However, although the details of its structure are not necessarily clear, the method of the present invention,
That is, it can only be produced by a method in which polyolefin is modified with at least two specific modifiers using a peroxide and simultaneously blended with polyamide.

The existence of a composite structure can be proven by its solubility in a solvent. For example, when the polyamide part of the extruder kneaded product obtained by the method of the present invention is dissolved and removed using a solvent such as metacresol and the infrared absorption spectrum of the residue is examined, the residue is found to be both polyolefin and polyamide. It was found that there was a polyamide that showed a characteristic spectrum of , and could not be dissolved and removed by this operation.

In other words, this residue is considered to have a structure in which polyamide molecular chains and polyolefin molecular chains are entangled.

In addition, in the method of the present invention, the polyolefin is partially crosslinked during the kneading process. The degree of crosslinking can also be expressed in terms of solubility in solvents.

A poly(ethylene/propylene) copolymer that is completely soluble in a solvent such as toluene before melt-kneading with polyamide can be cross-linked with portions that are insoluble in the solvent when dispersed in a polyamide matrix by the method of the present invention. The next experiment revealed that it was a body. In other words, the poly(ethylene/propylene) copolymer remaining in the wheat after hydrolyzing polyamide with hydrochloric acid is not completely dissolved in toluene, and a crosslinked insoluble portion exists. According to the method of the present invention, it has become possible to finely disperse a partially crosslinked modified polyolefin in a polyamide matrix, which was previously unthinkable.

By crosslinking the rubber component, impact resistance and rigidity are further improved, resulting in a material with extremely high practical value.

The resin composite produced by the method of the present invention is composed of polyamide and polyolefin pellets, powders, strips, etc.
- An unsaturated amide compound, an α, β-unsaturated carboxylic acid compound or its anhydride, and an organic peroxide are premixed and then fed to a single-screw or multi-screw extruder with sufficient kneading power and melted. The most common method is kneading. The resin composite of the present invention may contain ingredients such as pigments, dyes, reinforcing materials, fillers, heat resistant agents, antioxidants, weathering agents, lubricants, crystal nucleating agents, blocking agents, etc., as long as they do not impair its physical properties and moldability. Inhibitors, mold release agents, plasticizers, flame retardants, antistatic agents, other polymers, and the like can be added and introduced.

The resin composite produced by the method of the present invention can be molded with well-balanced mechanical properties by subjecting it to injection molding, extrusion molding, blow molding, compression molding, etc., which are commonly used for thermoplastic resins. These molded products are useful as various automobile parts, mechanical parts, electrical/electronic parts, general miscellaneous goods, etc.

<Example> −1q　− The present invention will be explained in more detail with reference to Examples below.

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

(1) Relative viscosity of polyamide: JIS (2) Melt index: JIS K7210 (3
) Tensile properties: ASTM D638 (4)
Bending properties: ASTM D790 (5) Izot impact strength: ASTM D256 (6) Injection molding fluidity: Evaluated by spiral flow length Example 1 Nylon 6 with a relative viscosity of 3.10 was obtained by melt polymerizing ε-caprolactam. was prepared. A poly(ethylene/propylene) copolymer with a melt index of 1/10 minutes was prepared by polymerizing a mixture of 75 mol% ethylene and 25 mol% propylene. 0.5 parts by weight of acrylamide, 0.3 parts by weight of maleic anhydride and 2,5-dimethyl-2,5- for a total of 100 parts by weight of 675% by weight of nylon and 25% by weight of poly(ethidine/propylene) copolymer. Ji(t
-Butylpaoxy)hexyne-(3) 0.1 part by weight was added, the whole was premixed, and then melt-kneaded at 250'C using a twin screw extruder with a diameter of 60 mm to pelletize.

The stringability of the cut discharged from the extruder was extremely stable, and almost no cut breakage occurred even after continuous long-term operation.

The pellets obtained here were treated by the following two methods and subjected to infrared absorption spectroscopy and dissolution tests.

(1) The pellets were treated with hydrochloric acid to hydrolyze the nylon portion, and the infrared absorption spectrum of the residue is shown in FIG. This remnant is 1,460 cm”, 1.380 c
Absorption was observed at m-', 710 cm-1, indicating that it was a modified poly(ethylene/propylene) copolymer. In addition, since this residual modified poly(ethylene/propylene) copolymer was not completely dissolved in 1-helene, it was found that it was partially crosslinked during the above-mentioned compounding process. ) It was separately confirmed that the copolymer was completely dissolved in toluene and that no partial crosslinking had occurred due to the hydrochloric acid treatment.

(2) An attempt was made to treat the pellet with metacresol to dissolve and remove the nylon portion. This operation was repeated many times, and the infrared absorption spectrum of the residue is shown in FIG.

This residue is 3,300c, which is the characteristic absorption of nylon 6.
m-1,1゜640cm'', 1.550cm-1 and 1,460cm-1 which is the characteristic absorption of polyolefin.
, 1,380cm'', 71011:/711 absorption is observed.In other words, there is a nylon 6 part that cannot be completely removed by this metacresol dissolution, and this is a composite structure in which nylon 6 molecular chains and polyolefin molecular chains are entangled with each other. I guessed it was the body.

Next, after vacuum drying the pellets obtained here, a test piece was molded using an injection molding machine, and the fluidity during molding and the physical properties of the obtained test piece were measured, as shown in Table 1. It turned out to be a material with high practical value.

Comparative Example 1 2.0 parts by weight of acrylamide, 1.2 parts by weight of maleic anhydride and 2,5-dimethyl-2 were added to 100 parts by weight of the poly(ethylene/propylene) copolymer used in Example 1.
, 5-di(t-butylperoxy)hexyne (3) 0.
After adding and mixing 4 parts by weight, the mixture was kneaded at 250'C using a 40#φ diameter extruder. The modified poly(
It was found that the ethylene/propylene copolymer was not completely dissolved in toluene and was crosslinked.

After adding and mixing 25% by weight of this crosslinked modified poly(ethylene/propylene) copolymer to the nylon 6 used in Example 1, compounding was performed under the same conditions as in Example 1,
Next, the physical properties of the injection molded test pieces were evaluated. The results are shown in Table 1, and it was found that the method of mixing and kneading cross-linked polyolefin with nylon resulted in poor dispersion of the polyolefin, unsatisfactory impact strength, and poor surface appearance of the molded product. As shown in Example 1, it was found that crosslinking was inappropriate unless it proceeded simultaneously with modification during compounding with nylon.

Comparative Examples 2 to 5 Extruder kneading and evaluation of physical properties of injection molded test pieces were carried out in exactly the same manner as in Example 1, 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 amount of the modifier added is out of the range specified in the present invention, the stability of extrusion from the extruder is poor, and the fluidity of injection molding and mechanical properties are deteriorated, which is undesirable.

(A) N-6: Nylon 6, (B) EPR: Poly(ethylene/propylene) copolymer, (C) AA Niacrylamide, (D) MLA: Maleic anhydride, (E) DBP
+-1: 2,5-dimethyl-2,5-di(t-butylperoxy)hexyne-(3) Injection molding fluidity: Temperature 25
0°C, indexing pressure 1.000 to 3/cm, specimen thickness 1
．． 0 Physical properties: 23°C1 absolutely dry Examples 2 to 15 The same operation as in Example 1 was performed with different types and amounts of polyamide, polyolefin, modifier, and peroxide, and the stability of extrusion from the extruder was evaluated. The injection molding fluidity and physical properties of the molded test pieces were evaluated and the results shown in Table 2 were obtained. It was found that in all cases listed in Table 2, composites exhibiting excellent extrusion workability, injection molding fluidity, and physical properties were obtained.

Note) a) Polyamide N-6: polycaproamide, N-66: polyhexamethylene adipamide, N-610: polyhexamethylene sebacamide, N-612: polyhexamethylene adipamide,
N-12: Polydodecanamide, N-6/66 (B5
/15): Poly(caproamide/hexamethyleneadipamide) copolymer (wt%>, N-6/66 (10/9
0): Same as above, N-6/12 (B0/20): Poly(caproamide/dodecanamide) copolymer (wt%), N-
6I: Polyhexamethylene terephthalamide, N-MX
D6: Polymethaxylylene adipamide, N-PACMl
2: Polybis(4-aminocyclohexyl)methandodecamide, N-TMDT: Polytrimethylhexamethylene terephthalamide, N-12T: Polytodecamethylene terephthalamide, If-6/PACMT (50
150): Poly(hexamethylene isophthalamide/bis(4-aminocyclohexyl)methane terephthalamide) copolymer (wt%).

b) Polyolefin E/PP: Poly(ethylene/propylene) copolymer (
B0/20 mol%), PP: polypropylene, PMP:
Poly(4-methylpentene-1>, PE: polyethylene, E/BT: poly(ethylene/butene-1) copolymer (
B5/15 mol%>, E/PP/DCPD: Poly(ethylene/propylene/dicyclopentadiene) copolymer (70/20/10 mol%>, E/PP/ND: Poly(ethylene/propylene/nofornadiene) ) copolymer (
65/25/10 mol%>, E/PP/EN: Poly(
ethylene/propylene 15-ethylidene norhorne)
Copolymer (70/2515 mol%).

<Effects of the Invention> According to the present invention, injection molding fluidity and mechanical properties are improved by simultaneously modifying polyolefin and melt-kneading it with polyamide in the presence of at least two specific modifiers and an organic peroxide. It has become possible to produce superior materials.

Moreover, in the material obtained by the method of the present invention, the crosslinked polyolefin is uniformly and finely dispersed in the polyamide matrix, and the modification and crosslinking of the polyolefin proceed in the presence of the polyamide. Two points were previously unknown: a composite structure in which chains are intertwined with each other is generated.

In this regard, the present invention can provide a method for manufacturing materials with a new concept.

[Brief explanation of the drawing]

FIG. 1 is an infrared absorption spectrum diagram of the hydrochloric acid treatment residue of the pellet obtained in Example 1, and FIG. 2 is an infrared absorption spectrum diagram of the metacresol treatment residue of the same pellet. Patent application Daitoshi Co., Ltd.

Claims (1)

[Claims] (C) 0.02 to 5 parts by weight of an α,β-unsaturated amide compound; 0.01 to 3 parts by weight of α,β-unsaturated carboxylic acid compound or its anhydride and 0.001 parts by weight of organic peroxide
A method for producing a resin composite, comprising melt-kneading a mixture of 0.8 parts by weight.