US4339376A
Expired / Lapsed
US
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Highly heat-resistant thermoplastic resin composition having high oil-resistance
Assignee: Asahi Kasei Corp
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Filing: 1981-07-28
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Granted: 1982-07-13
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Expires: 2001-07-28
Abstract
Abstract A highly heat resistant thermoplastic resin composition having high oil-resistance which contains (a) polyphenylene ether resin, (b) a copolymer comprising a vinyl aromatic compound and an α,β-unsaturated dicarboxylic acid anhydride as components, or a copolymer comprising a vinyl aromatic compound and an imide compound of an α,β-unsaturated dicarboxylic acid as components, and (c) polyamide, and, if desired, (d) an impact-resistant-reinforcing agent.
Inventors
- 👤 Hideo Kasahara
- 👤 Kunio Fukuda
- 👤 Hiroshi Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:47
CPC Classifications
C; C08; C08L; C08L51/00; C08L51/04; C08L35/00; C08L35/06; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L77/00
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
51 words
A thermoplastic resin composition having high oil-resistance which comprises (a) polyphenylene ether resin, (b) a copolymer comprising a vinyl aromatic compound and an α,β-unsaturated dicarboxylic acid anhydride as components, or a copolymer comprising a vinyl aromatic compound and an imide compound of an α,β-unsaturated dicarboxylic acid as components, and (c) polyamide.
Claim 2
Dependent Claim
51 words
A thermoplastic resin composition having high oil-resistance which comprises (a) polyphenylene ether resin, (b) a copolymer comprising a vinyl aromatic compound and an α,β-unsaturated dicarboxylic acid anhydride as components, or a copolymer comprising a vinyl aromatic compound and an imide compound of an α,β-unsaturated dicarboxylic acid as components, and (c) polyamide.
Claim 3
Dependent Claim
14 words
The resin composition of claim 1 which additionally comprises (d) an impact-resistant reinforcing agent.
Claim 4
Dependent Claim
29 words
The resin composition of claim 1 wherein the component (a) is 10-70 wt. %, the component (b) is 2-50 wt. % and the component (c) is 5-70 wt. %.
Claim 5
Dependent Claim
23 words
The resin composition of claim 2 wherein the component (d) is 70 wt. % at the highest, on the basis of the composition.
Claim 6
Dependent Claim
15 words
The resin composition of claim 1 or 2 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 or 2 wherein the polyphenylene ether is vinyl aromatic compound-grafted-poly(2,6-dimethylphenylene-1,4-ether).
Claim 8
Dependent Claim
51 words
The resin composition of claim 1 or 2 wherein the copolymer comprising a vinyl aromatic compound and an α,β-unsaturated dicarboxylic acid anhydride contains 60-99 mole % of the vinyl aromatic compound and 1-40 mole % of the α,β-unsaturated dicarboxylic acid anhydride and has a molecular weight in the range of 10,000-300,000.
Claim 9
Dependent Claim
60 words
The resin composition of claim 1 or 2 wherein the copolymer comprising a vinyl aromatic compound and an α,β-unsaturated dicarboxylic acid anhydride contains 60-96 mole % of the vinyl aromatic compound, 2-30 mole % of the α,β-unsaturated dicarboxylic acid anhydride and 2-20 mole % of a methacrylate or an acrylate, and has a molecular weight in the range of 10,000-300,000.
Claim 10
Dependent Claim
39 words
The resin composition of claim 1, 2, 7 or 8 wherein the copolymer comprising a vinyl aromatic compound and an α,β-unsaturated dicarboxylic acid anhydride is a rubber-reinforced copolymer comprising a vinyl aromatic compound and an α,β-unsaturated dicarboxylic acid anhydride.
Claim 11
Dependent Claim
57 words
The resin composition of claim 1 or 2 wherein the copolymer comprising a vinyl aromatic compound and an imide compound of an α,β-unsaturated dicarboxylic acid contains 70-99 mole % of the vinyl aromatic compound and 1-30 mole % of the imide compound of an α,β-unsaturated dicarboxylic acid, and has a molecular weight in the range of 10,000-300,000.
Claim 12
Dependent Claim
66 words
The resin composition of claim 1 or 2 wherein the copolymer comprising a vinyl aromatic compound and an imide compound of an α,β-unsaturated dicarboxylic acid contains 70-98 mole % of the vinyl aromatic compound, 1-30 mole % of the imide compound of an α,β-unsaturated dicarboxylic acid and 1-20 mole % of a methacrylate or an acrylate, and has a molecular weight in the range of 10,000-300,000.
Claim 13
Dependent Claim
45 words
The resin composition of claim 1, 2, 10 or 11 wherein the copolymer comprising a vinyl aromatic compound and an imide compound of an α,β-unsaturated dicarboxylic acid is a rubber-reinforced copolymer comprising a vinyl aromatic compound and an imide compound of an α,β-unsaturated dicarboxylic acid.
Claim 14
Dependent Claim
22 words
The resin composition of claim 1 or 2 wherein the polyamide is polycaprolactam having a molecular weight in the range of 5,000-50,000.
Claim 15
Dependent Claim
22 words
The resin composition of claim 1 or 2 wherein the polyamide is polyhexamethyleneadipamide having a molecular weight in the range of 5,000-50,000.
Claim 16
Dependent Claim
31 words
The resin composition of claim 1 or 2 wherein the impact-resistant reinforcing agent is a graftcopolymer obtained by graft-copolymerization of monomers mainly composing a vinyl aromatic compound to a rubber-like polymer.
Claim 17
Dependent Claim
20 words
The resin composition of claim 15 wherein the graftcopolymer contains not less than 10 wt. % of the rubber-like polymer.
Claim 18
Dependent Claim
32 words
The resin composition of claim 1 or 2 wherein the impact-resistant reinforcing agent is one or more of styrene-butadiene block-copolymer, hydrogenated styrene-butadiene block-copolymer, ethylene-propylene elastomer, styrene-grafted-ethylene-propylene elastomer, polyester elastomer or ethylenic ionomer.
Claim 19
Dependent Claim
30 words
A thermoplastic resin composition which comprises the resin composition of claim 1 or 2 and additionally a polymer comprising a vinyl aromatic compound in not less than 80 wt. %.
Claim 20
Dependent Claim
23 words
The resin composition of claim 18 wherein the polymer comprising a vinyl aromatic compound in not less than 80 wt. % is polystyrene.
Claim 21
Dependent Claim
19 words
A thermoplastic resin composition which comprises the resin composition of claim 1 or 2 and additionally a phosphorous compound.
Claim 22
Dependent Claim
18 words
The resin composition of claim 20 wherein the phosphorous compound is a phosphoric ester or a phosphorous ester.
Claim 23
Dependent Claim
88 words
The resin composition of claim 20 wherein the phosphorous compound is one represented by the following general formulae (A) or (B): ##STR6## wherein X represents hydrogen, hydroxyl group, amino group, an alkyl group having 1-10 carbon atoms, an alkoxy group having 1-10 carbon atoms or an allyloxy group having 1-10 carbon atoms; Y 1 and Y 2 represent an alkyl group having 1-8 carbon atoms or an alkoxy group having 1-8 carbon atoms, respectively; Z represents oxygen or sulfur and n and p are integers of 0-4, respectively.
Claim 24
Dependent Claim
28 words
A highly heat-resistant glass fiber-reinforced resin composition which comprises the resin composition of claim 1 or 2 in 40-95 wt. % and glass fibers in 5-60 wt. %.
Claim 25
Dependent Claim
26 words
A carbon fiber-reinforced resin composition which comprises the resin composition of claim 1 or 2 in 40-95 wt. % and carbon fibers in 5-60 wt. %.
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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) | 1985-07-12 | 1986-01-11 | 1986-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-12 | 1990-01-11 | 1990-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-12 | 1994-01-11 | 1994-07-13 | $7700.00 | Window Closed / Lapsed |