Patent EP0345094A1 successfully refreshed from Google Patents.
EP0345094A1
Expired / Lapsed
EP
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Polyphenylene sulfide composition
Assignee: Toray Industries Inc
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Filing: 1989-06-02
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Granted: —
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Expires: 2009-06-02
Abstract
Abstract Disclosed is a polyphenylene sulfide composition having excellent impact characteristics, melt flow characteristics and flexibility which comprises, as indispensable components, (A) a polyphenylene sulfide, (B) an epoxy group-containing olefinic polymer, and (C) at least one elastomer selected from ethylene/propylene copolymers, ethylene/butene copolymers, ethylene/propylene/diene copolymers, hydrogenated styrene/ butadiene/styrene block copolymers, copolymers of ethylene with a monomer selected from acrylic acid, methacrylic acid and alkyl esters and metal salts thereof, and polyamide elastomers.
Inventors
- 👤 Sho Kadoi
- 👤 Norio Shimasaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 03:47
CPC Classifications
C; C08; C08L; C08L81/00; C08L81/04; C08L81/02; C08L63/00; C08L23/00; C08L23/02; C08L53/00; C08L53/02; C08L77/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
53 words
A polyethylene sulfide composition comprising (A) polyphenylene sulfide, (B) epoxy group-containing olefinic polymer, and (C) at least one elastomer selected from ethylene/propylene copolymers, ethylen/butene copolymers, ethylene/propylene/diene copolymers, hydrogenated styrene/butadiene/ styrene blocks copolymers, copolymers of ethylene with monomer selected from acrylic acid, methacrylic acid and alkyl esters and metal salts thereof, and polyamide elastomers.
Claim 2
Dependent Claim
53 words
A polyethylene sulfide composition comprising (A) polyphenylene sulfide, (B) epoxy group-containing olefinic polymer, and (C) at least one elastomer selected from ethylene/propylene copolymers, ethylen/butene copolymers, ethylene/propylene/diene copolymers, hydrogenated styrene/butadiene/ styrene blocks copolymers, copolymers of ethylene with monomer selected from acrylic acid, methacrylic acid and alkyl esters and metal salts thereof, and polyamide elastomers.
Claim 3
Dependent Claim
22 words
A composition according to claim 1 wherein the polyphenylene sulfide (A) has been subjected to deionizing purification treatment to remove ionic comprises.
Claim 4
Dependent Claim
28 words
A composition according to claim 2 wherein the polyphenylene sulfide (A) has been washed [a] with acid or hot water or organic solvent and then [b] with water.
Claim 5
Dependent Claim
27 words
A composition according to claim 1, 2 or 3 wherein the epoxy group-containing olefinic polymer (B) comprises olefinic polymer containing 0.1 to30% by weight of epoxy group.
Claim 6
Dependent Claim
19 words
A composition according to claim 4 wherein the epoxy group-containing olefinic polymer (B) comprises ethylene/glycidyl acrylate or methacrylate copolymer.
Claim 7
Dependent Claim
29 words
A composition according to any preceding claim wherein elastomer (C) comprises ethyelene/pro- pylene copolymer, ethylene/butene copolymer or copolymer of methylene with acrylic acid, methacrylic acid or alkyl ester thereof.
Claim 8
Dependent Claim
46 words
A composition according to any preceding claim wherein the weights of polyphenylene sulfide (A), epoxy group-containing olefinic copolymers (B) and elastomer (C) are such that the (A)/[(B) + (C)] weight ratio is from 55/45 to 99/1 and the (B)/(C) weight ratio is from 5/95 to 95/5.
Claim 9
Dependent Claim
28 words
A composition according to claim 7 wherein the (A)/[(B) + (C)] weight ratio is from 70/30 to 95/5 and the (B)/(C) weight ratio is free 10/90 to 80/20.
Claim 10
Dependent Claim
21 words
A composition according to any preceding claim which further contains at least one member selected from fibrous reinforcers and inorganic fillers.
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