US4831088A
Expired / Lapsed
US
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Epoxide-functionalized polyphenylene ethers and method of preparation
Assignee: General Electric Co
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Filing: 1987-10-01
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Granted: 1989-05-16
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Expires: 2007-10-01
Abstract
Abstract Epoxide-functionalized polyphenylene ethers, which may be prepared by the reaction of various acid-functionalized polyphenylene ethers with functionalized epoxides, are useful in the preparation of polyphenylene ether copolymers. These copolymers are, in turn, useful for the compatibilization of blends of polyphenylene ethers with such other polymers as polyesters and polyamides.
Inventors
- 👤 Paul D. Sybert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:08
CPC Classifications
C; C08; C08L; C08L67/00; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/4009; C08G18/4018; C08G63/00; C08G63/66; C08G65/00; C08G65/34; C08G65/48; C08G65/485; C08G81/00; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
44 words
An epoxide-functionalized polyphenylene ether composition having the formula ##STR11## wherein A is a polyphenylene ether moiety, R 2 is a c 1-4 alkylene radical, R 5 is a divalent aliphatic, alicyclic or aromatic hydrocarbon or substituted hydrocarbon radical and p is 1 or 2.
Claim 2
Dependent Claim
44 words
An epoxide-functionalized polyphenylene ether composition having the formula ##STR11## wherein A is a polyphenylene ether moiety, R 2 is a c 1-4 alkylene radical, R 5 is a divalent aliphatic, alicyclic or aromatic hydrocarbon or substituted hydrocarbon radical and p is 1 or 2.
Claim 3
Dependent Claim
80 words
A composition according to claim 1 wherein the polyphenylene ether comprises a plurality of structural units having the formula ##STR12## and in each of said units independently, each Q 1 is independently halogen, primary or secondary lower alkyl, phenyl, haloalkyl, aminoalkyl, hydrocarbonoxy, or halohydrocarbonoxy wherein at least two carbon atoms separate the halogen and oxygen atoms; and each Q 2 is independently hydrogen, halogen, primary or secondary lower alkyl, phenyl, haloalkyl, hydrocarbonoxy or halohydrocarbonoxy as defined for Q 1 .
Claim 4
Dependent Claim
14 words
A composition according to claim 2 wherein the polyphenylene ether is a poly(2,6-dimethyl-1,4-phenylene ether).
Claim 5
Dependent Claim
14 words
A composition according to claim 3 wherein R 5 is an aromatic hydrocarbon radical.
Claim 6
Dependent Claim
11 words
A composition according to claim 4 wherein R 2 is methylene.
Claim 7
Dependent Claim
11 words
A composition according to claim 4 wherein R 5 is p-phenylene.
References Cited (Backward Citations)
US4315086A
Cited
US4614773A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-15 | 1992-11-14 | 1993-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-15 | 1996-11-14 | 1997-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-15 | 2000-11-14 | 2001-05-16 | $7700.00 | Window Closed / Lapsed |