Patent US4879360A successfully refreshed from Google Patents.
US4879360A
Expired / Lapsed
US
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Polyphenylene ether resin composition
Assignee: Mitsubishi Chemical Corp
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Filing: 1988-03-11
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Granted: 1989-11-07
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Expires: 2008-03-11
Abstract
Abstract A polyphenylene ether resin composition comprising (a) a polyphenylene ether resin, (b) a polyester resin, and (c) from 0.1 to 10 parts by weight, per 100 parts by weight of the total of the components (a) and (b), an epoxidized liquid polybutadiene having an oxirane oxygen content of at least 0.07% by weight. The composition is excellent in solvent resistance and mechanical strength.
Inventors
- 👤 Yoshinobu Kobayashi
- 👤 Tosio Itou
- 👤 Takayuki Inoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:39
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L71/126; C08L63/00; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
82 words
A polyphenylene ether resin composition consisting essentially of (a) a polyphenylene ether resin, (b) a polyester resin, and (c) from 0.1 to 10 parts by weight, per 100 parts by weight of the total of the components (a) and (b), of an epoxideized liquid polybutadiene having an oxirane oxygen content of at least 0.07% by weight, said polyester resin being present in an amount of from 10 to 95% by weight based on the total amount of the components (a) and (b).
Claim 2
Dependent Claim
82 words
A polyphenylene ether resin composition consisting essentially of (a) a polyphenylene ether resin, (b) a polyester resin, and (c) from 0.1 to 10 parts by weight, per 100 parts by weight of the total of the components (a) and (b), of an epoxideized liquid polybutadiene having an oxirane oxygen content of at least 0.07% by weight, said polyester resin being present in an amount of from 10 to 95% by weight based on the total amount of the components (a) and (b).
Claim 3
Dependent Claim
37 words
A polyphenylene ether resin composition as claimed in claim 1, wherein the polyester resin is present in an amount of from 20 to 90% by weight based on the total amount of the components (a) and (b).
Claim 4
Dependent Claim
37 words
A polyphenylene ether resin composition as claimed in claim 1, wherein the polyester resin is present in an amount of from 30 to 85% by weight based on the total amount of the components (a) and (b).
Claim 5
Dependent Claim
37 words
A polyphenylene ether resin composition as claimed in claim 1, wherein the polyester resin is present in an amount of from 35 to 80% by weight based on the total amount of the components (a) and (b).
Claim 6
Dependent Claim
47 words
A polyphenylene ether resin composition as claimed in claim 1, wherein the epoxidized liquid polybutadiene having an oxirane oxygen atom is present in an amount of from 0.5 to 5 parts by weight per 100 parts by weight of the total of the components (a) and (b).
Claim 7
Dependent Claim
27 words
A polyphenylene ether resin composition as claimed in claim 1, wherein the epoxidized liquid polybutadiene has an oxirane oxygen content of from 0.07 to 20% by weight.
Claim 8
Dependent Claim
27 words
A polyphenylene ether resin composition as claimed in claim 1, wherein the epoxidized liquid polybutadiene has an oxirane oxygen content of from 1 to 15% by weight.
Claim 9
Dependent Claim
24 words
A polyphenylene ether resin composition as claimed in claim 1, wherein the epoxidized liquid polybutadiene has a molecular weight of from 500 to 10,000.
Claim 10
Dependent Claim
24 words
A polyphenylene ether resin composition as claimed in claim 1, wherein the epoxidized liquid polybutadiene has a molecular weight of from 700 to 5,000.
Claim 11
Dependent Claim
31 words
A polyphenylene ether resin composition as claimed in claim 1, wherein the polyphenylene ether resin has an intrinsic viscosity of from 0.20 to 0.70 as measured in chloroform at 30° C.
Claim 12
Dependent Claim
31 words
A polyphenylene ether resin composition as claimed in claim 1, wherein the polyphenylene ether resin has an intrinsic viscosity of from 0.25 to 0.55 as measured in chloroform at 30° C.
References Cited (Backward Citations)
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Cited
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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) | 1992-11-06 | 1993-05-08 | 1993-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-06 | 1997-05-08 | 1997-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-06 | 2001-05-08 | 2001-11-07 | $7700.00 | Window Closed / Lapsed |