US4914153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solvent-resistant polyphenylene ether resin composition
Assignee: Mitsubishi Gas Chemical Co Inc
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Filing: 1987-11-17
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Granted: 1990-04-03
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Expires: 2007-11-17
Abstract
Abstract A polyphenylene ether resin composition having improved solvent resistance comprising (A) a modified polyphenylene ether obtained by modifying a polyphenylene ether with a modifier such as maleic anhydride and (B) a modified polyolefin obtained by modifying a polyolefin with both a modifier such as maleic anhydride and a vinyl or vinylidene compound such as styrene, and optionally (C) a binder such as phenylenediamine.
Inventors
- 👤 Shizuo Togo
- 👤 Akikazu Amagai
- 👤 Yoshinori Kondo
- 👤 Toshiaki Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:18
CPC Classifications
C; C08; C08L; C08L51/00; C08L51/06; C08L51/08; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/126; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
95 words
A solvent-resistant polyphenylene ether resin composition comprising (A) a modified polyphenylene ether obtained by modifying a polyphenylene ether with a modifier selected from the group consisting of maleic anhydride, glycidyl methacrylate and glycidyl acrylate in the absence of a radical initiator, (B) a modified polyolefin obtained by modifying a polyolefin with styrene and a modifier selected from the group consisting of maleic anhydride, glycidyl mathacrylate and glyoidyl acrylate in the presence of a radical initiator, and (C) a binder selected from the group consisting of phenylenediamine, aminobenzoic acid, bisphenol A, terephthalic acid and diepoxy compounds.
Claim 2
Dependent Claim
95 words
A solvent-resistant polyphenylene ether resin composition comprising (A) a modified polyphenylene ether obtained by modifying a polyphenylene ether with a modifier selected from the group consisting of maleic anhydride, glycidyl methacrylate and glycidyl acrylate in the absence of a radical initiator, (B) a modified polyolefin obtained by modifying a polyolefin with styrene and a modifier selected from the group consisting of maleic anhydride, glycidyl mathacrylate and glyoidyl acrylate in the presence of a radical initiator, and (C) a binder selected from the group consisting of phenylenediamine, aminobenzoic acid, bisphenol A, terephthalic acid and diepoxy compounds.
Claim 3
Dependent Claim
32 words
The composition of claim 1 wherein the modifier for the polyphenylene ether is maleic anhydride and the modifier for the polyolefin is glycidyl methacrylate or glycidyl acrylate, and the binder is p-phenylenediamine.
Claim 4
Dependent Claim
14 words
The composition of claim 1 wherein the polyphenylene ether is poly(2,3-dimethyl-1,4-phenylene)ether or 2,6-dimethylphenol/2,3,6-trimethylphenol copolymer.
Claim 5
Dependent Claim
10 words
The composition of claim 1 wherein the polyolefin is polypropylene.
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) | 1993-04-02 | 1993-10-02 | 1994-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-02 | 1997-10-02 | 1998-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-02 | 2001-10-02 | 2002-04-03 | $7700.00 | Window Closed / Lapsed |