EP0356194A2
Expired / Lapsed
EP
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Thermoplastic resin composition
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1989-08-22
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Granted: —
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Expires: 2009-08-22
Abstract
Abstract A thermoplastic resin composition which has excellent heat resistance and impact resistance as well as excellent rigidity, chemical resistance and processibility, comprises: (a) a polyphenylene ether resin or a resin composition containing a polyphenylene ether, (b) either a modified propylene polymer grafted with a styrene-based monomer and an unsaturated carboxylic acid or its derivative, or a propylene-based resin composition containing the modified propylene polymer and a propylene polymer, and (c) a rubbery substance. The thermoplastic resin compositions not only have good mold-processibility but also exhibit well-balanced physical properties when molded into articles such as vehicle components.
Inventors
- 👤 Motonobu Furuta
- 👤 Takashi Maruyama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 23:49
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/10; C08L51/00; C08L51/06; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L59/00; C08L63/00; C08L67/00; C08L69/00; C08L77/00; C08L79/00; C08L79/04; C08L79/08; C08L81/00; C08L83/00; C08L83/04; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
57 words
A thermoplastic resin composition comprising: (a) a polyphenylene ether resin or a resin composition containing a polyphenylene ether, (b) (i) a modified propylene polymer grafted with a styrene-based monomer and an unsaturated carboxylic acid or its derivative, or (ii) a propylene-based resin composition containing the modified propylene polymer and a propylene polymer, and (c) a rubbery substance.
Claim 2
Dependent Claim
57 words
A thermoplastic resin composition comprising: (a) a polyphenylene ether resin or a resin composition containing a polyphenylene ether, (b) (i) a modified propylene polymer grafted with a styrene-based monomer and an unsaturated carboxylic acid or its derivative, or (ii) a propylene-based resin composition containing the modified propylene polymer and a propylene polymer, and (c) a rubbery substance.
Claim 3
Dependent Claim
90 words
A thermoplastic resin composition according to claim 1, wherein the proportion of the component (a) to the sum of the components (a) and (b) is 1 to 90% by weight, and the proportion of the component (b) to the sum of the components (a) and (b) is 99 to 10% by weight, and wherein the proportion of the component (c) to the sum of the components (a) and (b) is 1 to 50 parts by weight per 100 parts by weight of the sum of the components (a) and (b).
Claim 4
Dependent Claim
79 words
A thermoplastic resin composition according to claim 1 or claim 2, wherein the modified propylene polymer as the component (b) is a modified propylene polymer comprising 0.2 to 150 parts by weight, per 100 parts by weight of the propylene polymer, of a graft monomer composed of 99 to 1% by weight of the styrene-based monomer and 1 to 99% by weight of the unsaturated carboxylic acid and/or its derivative and attached to the propylene polymer by graft copolymerization.
Claim 5
Dependent Claim
51 words
A thermoplastic resin composition according to claim 1 or claim 2, wherein the modified propylene polymer as the component (b) is (i) a modified propylene polymer grafted with the styrene-based monomer, glycidyl methacrylate and/or glyidyl acrylate, or (ii) a propylene-based resin composition containing the modified propylene polymer and the propylene polymer.
Claim 6
Dependent Claim
27 words
A thermoplastic resin composition according to any of claims 1 to 4, wherein the component (c) is a rubbery substance graft-copolymerized with the or a styrene-based monomer.
Claim 7
Dependent Claim
21 words
A thermoplastic resin composition according to any of claims 1 to 4, wherein the component (c) is an ethylene-α-olefin copolymer rubber.
Claim 8
Dependent Claim
47 words
A thermoplastic resin composition according to claim 6, wherein the ethylene-α-olefin copolymer rubber is an ethylene-α-olefin copolymer rubber having an ethylene content of 15 to 85% by weight, a Mooney viscosity (ML₁₊₄, 121°C) of 5 to 120, and a glass transition temperature of not higher than -10°C.
Claim 9
Dependent Claim
21 words
A thermoplastic resin composition according to any of claims 1 to 4, wherein the component (c) is an epoxy group-containing copolymer.
Claim 10
Dependent Claim
79 words
A thermoplastic resin composition according to any of claims 1 to 8, wherein the polyphenylene ether used as the component (a) is a polyphenylene ether obtainable by oxidative coupling polymerization of at least one phenol compound represented by the general formula (1) wherein R₁, R₂, R₃, R₄ and R₅ each represents a hydrogen atom, a halogen atom, a hydrocarbon group or a substituted hydrocarbon group, provided that one of R₁, R₂, R₃, R₄ and R₅ is a hydrogen atom.
Claim 11
Dependent Claim
16 words
A molded article made from a resin composition according to any of claims 1 to 9.
References Cited (Backward Citations)
No citation records indexed.
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