US4556685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyphenylene ether resin composition
Assignee: Mitsubishi Gas Chemical Co Inc
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Filing: 1984-10-10
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Granted: 1985-12-03
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Expires: 2004-10-10
Abstract
Abstract A polyphenylene ether resin composition comprising (A) a polyphenylene ether resin, (B) a polystyrene resin, (C) an acrylonitrile/conjugated diene elastomeric copolymer, (D) a graft copolymer obtained by reacting butyl rubber and an unsaturated polyolefin in a bifunctional phenol as a reaction medium, and (E) an aromatic phosphate.
Inventors
- 👤 Akitoshi Sugio
- 👤 Masanobu Masu
- 👤 Toshihiko Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:26
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08F; C08F283/00; C08F283/06; C08F283/08; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L87/00; C08L9/00; C08L9/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
107 words
A polyphenylene ether resin composition comprising (A) a polyphenylene ether resin, (B) a polystyrene resin, (C) an acrylonitrile/conjugated diene elastomeric copolymer, (D) a graft copolymer obtained by reacting butyl rubber and an unsaturated polyolefin in a bifunctional phenol as a reaction medium, and (E) an aromatic phosphate wherein the resin composition comprises 60 to 90% by weight of component (A), 10 to 30% by weight of component (B), 2 to 15% by weight of component (C), 2 to 10% by weight of component (D) and 5 to 20 parts by weight of component E per 100 parts by weight of components (A), (B), (C) and (D) combined.
Claim 2
Dependent Claim
107 words
A polyphenylene ether resin composition comprising (A) a polyphenylene ether resin, (B) a polystyrene resin, (C) an acrylonitrile/conjugated diene elastomeric copolymer, (D) a graft copolymer obtained by reacting butyl rubber and an unsaturated polyolefin in a bifunctional phenol as a reaction medium, and (E) an aromatic phosphate wherein the resin composition comprises 60 to 90% by weight of component (A), 10 to 30% by weight of component (B), 2 to 15% by weight of component (C), 2 to 10% by weight of component (D) and 5 to 20 parts by weight of component E per 100 parts by weight of components (A), (B), (C) and (D) combined.
Claim 3
Dependent Claim
28 words
The resin composition of claim 1 wherein the polyphenylene ether resin is a homopolymer of phenylene ether, a copolymer of phenylene ether or a grafted polyphenylene ether polymer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-02 | 1989-06-03 | 1989-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-02 | 1993-06-03 | 1993-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-02 | 1997-06-03 | 1997-12-03 | $7700.00 | Window Closed / Lapsed |