EP0639616A1
Expired / Lapsed
EP
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High-impact polystyrene resin compositions
Assignee: Idemitsu Kosan Co Ltd
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Filing: 1994-03-02
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Granted: —
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Expires: 2014-03-02
Abstract
Abstract A high-impact polystyrene resin composition comprising a syndiotactic styrene polymer (A) and a polar rubbery elastomer (B), and another high-impact polystyrene resin composition comprising a rubbery elastomer (C) and/or polyphenylene ether (D) in addition to the above composition. These compositions are excellent in thermal resistance, elastic modulus, impact resistance and elongation, thus being utilizable in molding various industrial materials such as electrical and electronics components, industrial structural materials, automative parts, household electric appliances and, machine parts.
Inventors
- 👤 Akihiko Okada
- 👤 Noboyuki Sato
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 19:07
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/06; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L53/00; C08L53/02; C08L9/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
35 words
An impact resistant polystyrene composition which comprises 100 parts by weight of an (A) styrenic polymer having syndiotactic configuration and 1 to 100 parts by weight of a (B) rubbery elastomer having a polar group.
Claim 2
Dependent Claim
46 words
An impact resistant polystyrene composition which comprises 100 parts by weight of an (A) styrenic polymer having syndiotactic configuration, 1 to 100 parts by weight of a (B) rubbery elastomer having a polar group and 1 to 100 parts by weight of a (C) rubbery elastomer.
Claim 3
Dependent Claim
46 words
An impact resistant polystyrene composition which comprises 100 parts by weight of an (A) styrenic polymer having syndiotactic configuration, 1 to 100 parts by weight of a (B) rubbery elastomer having a polar group and 0.1 to 5 parts by weight of a (D) poly(phenylene ether).
Claim 4
Dependent Claim
57 words
An impact resistant polystyrene composition which comprises 100 parts by weight of an (A) styrenic polymer having syndiotactic configuration, 1 to 100 parts by weight of a (B) rubbery elastomer having a polar group, 1 to 100 parts by weight of a (C) rubbery elastomer and 0.1 to 5 parts by weight of a (D) poly(phenylene ether).
Claim 5
Dependent Claim
34 words
The impact resistant polystyrene composition according to any of Claims 1 to 4 wherein the rubbery elastomer having a polar group as the component (B) is a rubbery elastomer having a maleic anhydride group.
Claim 6
Dependent Claim
33 words
The impact resistant polystyrene composition according to any of Claims 1 to 4 wherein the rubbery elastomer having a polar group as the component (B) is a rubbery elastomer having an epoxy group.
Claim 7
Dependent Claim
35 words
The impact resistant polystyrene composition according to any of Claims 1 to 4 wherein the rubbery elastomer having a polar group as the component (B) is a hydrogenated styrene/butadiene/styrene copolymer rubber having an epoxy group.
Claim 8
Dependent Claim
23 words
The impact resistant polystyrene composition according to Claim 2 wherein the rubbery elastomer as the component (C) is a hydrogenated styrene/butadiene/styrene copolymer rubber.
Claim 9
Dependent Claim
23 words
The impact resistant polystyrene composition according to Claim 4 wherein the rubbery elastomer as the component (C) is a hydrogenated styrene/butadiene/styrene copolymer rubber.
References Cited (Backward Citations)
No citation records indexed.
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