Claims
- 1. A polyphenylene ether composition which has enhanced impact strength when initially molded and which resists loss of impact strength upon being thermally recycled at temperatures in the range of 250.degree. C.-350.degree. C., or thermally aged at a temperature of 50.degree. C.-200.degree. C., consisting essentially of by weight, from about 5 to about 400 parts of a diene based rubber, per 100 parts of a polyphenylene ether, which blend of polyphenylene ether and diene based rubber is an extrudate of a mixture selected from the class consisting of,
- (b) a blend of a diene based rubber, a pre-extruded polyphenylene ether and about 1 to about 6 parts by weight of a dialkylamine having a boiling point of at least 150.degree. C., per 100 parts of polyphenylene ether, and
- (c) a blend of a diene based rubber and a preextruded mixture of polyphenylene ether and about 1 to about 6 parts by weight of a dialkylamine having a boiling point of at least 150.degree. C., per 100 parts of polyphenylene ether.
- 2. A polyphenylene ether composition in accordance with claim 1, where the polyphenylene ether is poly(2,6-dimethyl-1,4-phenylene ether).
- 3. A polyphenylene ether composition in accordance with claim 1, which is an extrudate of a styrene-butadiene-styrene copolymer, a polyphenylene ether and dioctylamine.
REFERENCE TO COPENDING APPLICATIONS
This application is a continuation-in-part of copending application, Ser. No. 07/850,606, filed Mar. 13, 1992 now abandoned which is a continuation of application Ser. No. 07/628,811, filed Dec. 17, 1990 now abandoned. Reference also is made to copending applications, Ser. No. 07/628,809, filed Dec. 17, 1990 now abandoned and Ser. No. 07/628,810, filed Dec. 17, 1990 now abandoned.
US Referenced Citations (11)
Foreign Referenced Citations (2)
Number |
Date |
Country |
0305861A |
Mar 1989 |
EPX |
0319339A |
Jun 1989 |
EPX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
628811 |
Dec 1990 |
|
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
850606 |
Mar 1992 |
|