US4282139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber-reinforced resin composition containing polyphenylene ether resin
Assignee: Mitsubishi Gas Chemical Co Inc
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Filing: 1979-09-19
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Granted: 1981-08-04
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Expires: 1999-09-19
Abstract
Abstract A fiber-reinforced composition of a polyphenylene ether resin having improved rigidity and dimensional stability, said composition consisting essentially of (a) a polyphenylene ether resin or a mixture of it with a styrene resin, and (b) asbestos fibers.
Inventors
- 👤 Akitoshi Sugio
- 👤 Masanobu Masu
- 👤 Masatugu Matunaga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:49
CPC Classifications
C; C08; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/10; C08K7/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
71 words
A fiber-reinforced resin composition having improved rigidity and dimensional stability, said composition consisting essentially of (a) a resin component which contains at least 30% by weight of a polyphenylene ether resin and, the balance being a styrene resin and (b) chrysotile asbestos fibers which are used in the form of pellets and in the amount of 10 to 100 parts by weight per 100 parts by weight of said resin component.
Claim 2
Dependent Claim
71 words
A fiber-reinforced resin composition having improved rigidity and dimensional stability, said composition consisting essentially of (a) a resin component which contains at least 30% by weight of a polyphenylene ether resin and, the balance being a styrene resin and (b) chrysotile asbestos fibers which are used in the form of pellets and in the amount of 10 to 100 parts by weight per 100 parts by weight of said resin component.
Claim 3
Dependent Claim
12 words
The composition of claim 1 which further contains a phosphoric acid ester.
Claim 4
Dependent Claim
30 words
The composition of claim 2 wherein the amount of the phosphoric acid ester is 2 to 30 parts by weight per 100 parts by weight of the resin component (a).
References Cited (Backward Citations)
US4131598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-03 | 1985-02-02 | 1985-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-03 | 1989-02-02 | 1989-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-03 | 1993-02-02 | 1993-08-04 | $7700.00 | Window Closed / Lapsed |