Patent US4386176A successfully refreshed from Google Patents.
US4386176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic resin composition having high heat resistance
Assignee: Asahi Kasei Corp
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Filing: 1981-07-07
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Granted: 1983-05-31
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Expires: 2001-07-07
Abstract
Abstract A thermoplastic resin composition which has high heat resistance, high impact resistance and high molding processability and comprises 5-95% by wt. of a copolymer of a vinyl aromatic compound and an imide compound of an α,β-unsaturated dicarboxylic acid and 5-95% by wt. of a polyphenylene ether resin together with or without up to 90% by wt. of an impact resistance reinforcing agent.
Inventors
- 👤 Kunio Fukuda
- 👤 Hideo Kasahara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:31
CPC Classifications
C; C08; C08L; C08L53/00; C08L53/02; C08L35/00; C08L35/06; C08L51/00; C08L51/04; C08L53/025; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
59 words
A thermoplastic resin composition which has high heat resistance and comprises 5-95 wt.% of a copolymer of a vinyl aromatic compound and an imide compound of an α,β-unsaturated dicarboxylic acid having a phenyl group at N-position or a nuclear-substituted phenyl group at N-position, 5-95 wt.% of a polyphenylene ether resin and 0-90 wt.% of an impact resistance reinforcing agent.
Claim 2
Dependent Claim
59 words
A thermoplastic resin composition which has high heat resistance and comprises 5-95 wt.% of a copolymer of a vinyl aromatic compound and an imide compound of an α,β-unsaturated dicarboxylic acid having a phenyl group at N-position or a nuclear-substituted phenyl group at N-position, 5-95 wt.% of a polyphenylene ether resin and 0-90 wt.% of an impact resistance reinforcing agent.
Claim 3
Dependent Claim
45 words
The resin composition of claim 1 wherein the copolymer of a vinyl aromatic compound and an imide compound of an α,β-unsaturated dicarboxylic acid is a compolymer of 2-40 wt.% of the imide compound of α,β-unsaturated dicarboxylic acid and 60-98 wt.% of the vinyl aromatic compound.
Claim 4
Dependent Claim
29 words
The resin composition of claim 1 or 2 wherein the copolymer of a vinyl aromatic compound and an imide compound of an α,β-unsaturated dicarboxylic acid is a styrene-N-phenylmaleimide copolymer.
Claim 5
Dependent Claim
30 words
The resin composition of claim 1 or 2 wherein the copolymer of a vinyl aromatic compound and an imide compound of an α,β-unsaturated dicarboxylic acid is a rubber-reinforced styrene-N-phenylmaleimide copolymer.
Claim 6
Dependent Claim
13 words
The resin composition of claim 1 wherein the polyphenylene ether resin is poly(2,6-dimethylphenylene-1,4-ether).
Claim 7
Dependent Claim
16 words
The resin composition of claim 1 wherein the polyphenylene ether resin is a vinyl aromatic compound-grafted-poly(2,6-dimethylphenylene-1,4-ether).
Claim 8
Dependent Claim
33 words
The resin composition of claim 1 wherein the impact resistance reinforcing agent is a graftcopolymer obtained by graft-copolymerization of a monomer whose main component is a vinyl aromatic compound to a rubber-like polymer.
Claim 9
Dependent Claim
19 words
The resin composition of claim 7 wherein the graftcopolymer contains a rubber-like polymer in an amount exceeding 12 wt.%.
Claim 10
Dependent Claim
29 words
The resin composition of claim 1 wherein the impact resistance reinforcing agent is at least one of styrene-butadiene block-copolymer, hydrogenated styrene-butadiene block-copolymer, ethylene-propylene elastomer, styrene-grafted-ethylene-propylene elastomer and polyester elastomer.
Claim 11
Dependent Claim
44 words
The resin composition of claim 1 wherein it comprises 10-80 wt.% of the copolymer of a vinyl aromatic compound and an imide compound of an α,β-unsaturated dicarboxylic acid, 20-70 wt.% of the polyphenylene ether resin and 0-60 wt.% of the impact resistant reinforcing agent.
References Cited (Backward Citations)
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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) | 1986-05-30 | 1986-11-29 | 1987-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-30 | 1990-11-29 | 1991-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-30 | 1994-11-29 | 1995-05-31 | $7700.00 | Window Closed / Lapsed |