US5262478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition of polyphenylene ether, polyamide, modified copolymer rubber and epoxy compound
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1992-10-23
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Granted: 1993-11-16
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Expires: 2012-10-23
Abstract
Abstract A thermoplastic resin composition suitable for shaped articles comprises (A) 100 parts by weight of a composition consisting of (a) from 5-95% by weight of a polyphenylene ether and (b) from 95-5% by weight of a polyamide, (B) from 5-100 parts by weight of a reactive group-modified copolymer rubber, and (C) from 0.01-30 parts by weight of a copolymer of unsaturated epoxy compound/ethylene/(/ethylenically unsaturated compound).
Inventors
- 👤 Taichi Nishio
- 👤 Takashi Sanada
- 👤 Satoru Hosoda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:44
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L77/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
204 words
A thermoplastic resin composition consisting essentially of 100 parts by weight of a composition (A) defined below; 5-100 parts by weight of (B), a modified copolymer rubber selected from the group consisting of ethylene/propylene copolymer rubber and ethylene/propylene/diene copolymer rubber said copolymer rubber being modified with maleic anhydride; and 0.01-30 parts by weight of (C), a copolymer of unsaturated epoxy compound/ethylene or a copolymer of unsaturated epoxy compound/ethylene/ethylenically unsaturated compound other than ethylene, said unsaturated epoxy compound being selected from unsaturated glycidyl ester and unsaturated glycidyl ether having the formulas (1) and (2) below: ##STR6## wherein R is a C 2 -C 18 hydrocarbon group containing ethylenically unsaturated bond and X is --CH 2 --O-- or ##STR7## and said composition (A) consists of (a) 5-95% by weight of polyphenylene ether obtained by oxidation polymerization of at least one phenol compound of the formula: ##STR8## wherein R 1 , R 2 , R 3 , R 4 and R 5 each represents a hydrogen atom, a halogen atom or a hydrocarbon residue substituted or not and at least one of R 1 , R 2 , R 3 , R 4 and R 5 is a hydrogen atom, and (b) 95-5% by weight of polyamide.
Claim 2
Dependent Claim
204 words
A thermoplastic resin composition consisting essentially of 100 parts by weight of a composition (A) defined below; 5-100 parts by weight of (B), a modified copolymer rubber selected from the group consisting of ethylene/propylene copolymer rubber and ethylene/propylene/diene copolymer rubber said copolymer rubber being modified with maleic anhydride; and 0.01-30 parts by weight of (C), a copolymer of unsaturated epoxy compound/ethylene or a copolymer of unsaturated epoxy compound/ethylene/ethylenically unsaturated compound other than ethylene, said unsaturated epoxy compound being selected from unsaturated glycidyl ester and unsaturated glycidyl ether having the formulas (1) and (2) below: ##STR6## wherein R is a C 2 -C 18 hydrocarbon group containing ethylenically unsaturated bond and X is --CH 2 --O-- or ##STR7## and said composition (A) consists of (a) 5-95% by weight of polyphenylene ether obtained by oxidation polymerization of at least one phenol compound of the formula: ##STR8## wherein R 1 , R 2 , R 3 , R 4 and R 5 each represents a hydrogen atom, a halogen atom or a hydrocarbon residue substituted or not and at least one of R 1 , R 2 , R 3 , R 4 and R 5 is a hydrogen atom, and (b) 95-5% by weight of polyamide.
Claim 3
Dependent Claim
35 words
A thermoplastic resin composition according to claim 1 wherein the polyphenylene ether (a) is homopolymer of 2,6-dimethylphenol or 2,6-diphenylphenol, or copolymer of a large amount of 2,6-dimethylphenol and a small amount of 3-methyl-6-t-butylphenol or 2,3,6-trimethylphenol.
Claim 4
Dependent Claim
34 words
A thermoplastic resin composition according to claim 1 wherein the polyamide (b) is a condensation-polymerization product of three or more membered lactam, ω-amino acid or a copolymer of a dicarboxylic acid and a diamine.
Claim 5
Dependent Claim
18 words
A thermoplastic resin composition according to claim 1, wherein the modified copolymer rubber (B) is ethylene/propylene copolymer rubber.
Claim 6
Dependent Claim
31 words
A thermoplastic resin composition according to claim 1 wherein an amount of the modified copolymer rubber (B) is 10-80 parts by weight every 100 parts by weight of the composition (A).
Claim 7
Dependent Claim
21 words
A thermoplastic resin composition according to claim 1 wherein (C) is a copolymer containing 0.1-50% by weight of unsaturated epoxy compound.
Claim 8
Dependent Claim
19 words
A thermoplastic resin composition according to claim 6 wherein an amount of unsaturated epoxy compound is 1-30% by weight.
Claim 9
Dependent Claim
28 words
A thermoplastic resin composition according to claim 1, wherein the amount of copolymer (C) is 0.01-20 parts by weight per 100 parts by weight of the composition (A).
Claim 10
Dependent Claim
20 words
A thermoplastic resin composition according to claim 1 wherein said resin composition is reinforced with inorganic fillers and/or flame retardants.
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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) | 1996-11-15 | 1997-05-17 | 1997-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-15 | 2001-05-17 | 2001-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-15 | 2005-05-17 | 2005-11-16 | $7700.00 | Window Closed / Lapsed |