US3708455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced polyphenylene ether compositions
Assignee: Asahi Kasei Corp
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Filing: 1971-06-29
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Granted: 1973-01-02
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Expires: 1991-06-29
Abstract
Abstract Polyphenylene ether compositions reinforced with glass fiber, are excellent in shaping processability. They are prepared by blending from 10 to 50 percent by weight of glass fiber and from 90 to 50 percent by weight of a basic resin composition, said basic resin composition consisting of from 95 to 50 percent by weight based on the basic composition of polyphenylene ether and from 5 to 50 percent by weight of based on the basic composition of amorphous polymer, e.g. styrene-acrylonitrile polymer. A 1 : 1 mixture of polyphenylene ether with polystyrene, for example, may be used in place of the polyphenylene ether.
Inventors
- 👤 K Toyama
- 👤 A Nakanishi
- 👤 S Izawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:09
CPC Classifications
C; C08; C08L; C08L25/00; C08J; C08J5/00; C08J5/04; C08J5/0405; C08J5/043; C08J5/06; C08J5/08; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/14; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08J2371/00; C08J2371/08; C08J2371/10; C08J2371/12; C08L69/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
20 words
A composition according to claim 1, wherein the amount of glass fiber is from 20 to 40 percent by weight.
Claim 2
Dependent Claim
13 words
A composition according to claim 1, wherein the polyphenylene ether is poly(2,6-dimethylphenylene-1, 4-ether).
Claim 3
Dependent Claim
31 words
A composition according to claim 1, wherein (a) is a mixture of 90 to 10 percent by weight of a polyphenylene ether and 10 to 90 percent by weight of styrenepolymer.
Claim 4
Dependent Claim
15 words
A composition according to claim 1, wherein the amorphous polymer is a styrene-acrylonitrile copolymer resin.
Claim 5
Dependent Claim
55 words
A composition according to claim 1 wherein the amorphous polymer is at least one resin selected from the group consisting of styrene-acrylonitrile copolymer containing 10 to 90 percent styrene, styrene-methyl methacrylate copolymer containing 10 to 90 percent styrene, methyl methacrylate polymer containing up to 10 percent of a copolymerizable vinyl compound, and an aromatic polycarbonate.
Claim 6
Dependent Claim
19 words
A composition according to claim 6 wherein the polyphenylene ether is poly(2,6-dimethylphenylene-1, 4-ether) and the amorphous polymer is styrene-acrylonitrile.
Claim 7
Dependent Claim
20 words
A composition according to claim 6 wherein the polyphenylene ether is poly(2,6-dimethylphenylene-1, 4-ether) and the amorphous polymer is polymethyl methacrylate.
Claim 8
Dependent Claim
19 words
A composition according to claim 6 wherein the polyphenylene ether is poly(2,6-dimethylphenylene-1,4-ether) and the amorphous polymer is aromatic polycarbonate.
Claim 9
Dependent Claim
21 words
A composition according to claim 6 wherein the polyphenylene ether is poly(2,6-dimethylphenylene -1,4-ether) and the amorphous polymer is styrene-methyl methacrylate copolymer.
Claim 10
Dependent Claim
105 words
A process for the production of a composition as claimed in claim 1 which comprises blending from 10- 50 percent by weight of glass fiber and from 90 to 50 percent by weight of a resin composition, said resin composition having been prepared by dispersing from 50 to 5 percent by weight of an amorphous polymer Of from 0.1 to 10 micron size in from 50 to 95 percent by weight of polyphenylene ether alone or with up to 90 percent of styrene polymer which is a homopolymer or styrene copolymer with a copolymerizable unsaturated compound, said copolymer containing at least 90 percent of styrene.
Claim 11
Dependent Claim
20 words
A process according to claim 11 wherein the polyphenylene ether is poly (2,6-dimethylphenylene-1, 4-ether) and the amorphous polymer is styrene-acrylonitrile.
Claim 12
Dependent Claim
21 words
A process according to claim 11 wherein the polyphenylene ether is poly (2,6-dimethylphenylene-1, 4-ether) and the amorphous polymer is polymethyl methacrylate.
Claim 13
Dependent Claim
20 words
A process according to claim 11 wherein the polyphenylene ether is poly (2,6-dimethylphenylene-1,4-ether) and the amorphous polymer is aromatic polycarbonate.
Claim 14
Dependent Claim
22 words
A process according to claim 11 wherein the polyphenylene ether is poly (2,6-dimethylphenylene-1, 4-ether) and the amorphous polymer is styrene-methyl methacrylate copolymer.
References Cited (Backward Citations)
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US3660531A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |