US4732937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxide-functionalized polyphenylene ethers and method of preparation
Assignee: General Electric Co
•
Filing: 1986-07-14
•
Granted: 1988-03-22
•
Expires: 2006-07-14
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
2026-11-02 00:19
CPC Classifications
C; C08; C08L; C08L63/00; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/4009; C08G18/4018; C08G59/00; C08G59/02; C08G63/00; C08G63/66; C08G65/00; C08G65/34; C08G65/48; C08G65/485; C08G81/00; C08L67/00; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/126; C08L77/00; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
58 words
A resinous composition comprising at least one polyphenylene ether and at least one polyamide, at least a portion of said polyphenylene ether being an epoxidefunctionalized polyphenylene ether having the formula ##STR11## wherein A is a polyphenylene ether moiety, R 2 is a C.sub.(1-4) alkylene radical, R 5 is an aromatic hydrocarbon radical, and p is 1 or 2.
Claim 2
Dependent Claim
58 words
A resinous composition comprising at least one polyphenylene ether and at least one polyamide, at least a portion of said polyphenylene ether being an epoxidefunctionalized polyphenylene ether having the formula ##STR11## wherein A is a polyphenylene ether moiety, R 2 is a C.sub.(1-4) alkylene radical, R 5 is an aromatic hydrocarbon radical, and p is 1 or 2.
Claim 3
Dependent Claim
87 words
A composition according to claim 1, wherein the polyamide is nylon-6 or nylon-66 and 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
23 words
A composition according to claim 2, which also contains an impact modifier in the amount of about 4-25% by weight of resinous components.
Claim 5
Dependent Claim
14 words
A composition according to claim 3, wherein the polyphenylene ether is a poly(2,6-dimethyl-1,4-phenylene ether).
Claim 6
Dependent Claim
16 words
A composition according to claim 4, wherein R 2 is methylene and R 5 is p-phenylene.
Claim 7
Dependent Claim
45 words
A composition according to claim 5, wherein the impact modifying resin is a styrene-conjugated diene or olefin diblock or styrene-conjugated diene or olefin styrene triblock copolymer and is present in an amount up to about 50 parts by weight per 100 parts of polyphenylene ether.
Claim 8
Dependent Claim
11 words
A composition according to claim 5, wherein the polyamide is nylon-66.
References Cited (Backward Citations)
US3375228A
Cited
US3639337A
Cited
US4338421A
Cited
US4315086A
Cited
US4614773A
Cited
US4600741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-22 | 1991-09-21 | 1992-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-22 | 1995-09-21 | 1996-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-22 | 1999-09-21 | 2000-03-22 | $7700.00 | Window Closed / Lapsed |