Compositions comprising polyphenylene ethers and reactive graft

Details Compositions comprising polyphenylene ethers and reactive graft Compositions comprising polyphenylene ethers and reactive graft

1989-05-01

1990-12-25

Ziegler, Jacob

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525319, 525322, 525324, 525905, C08L 5106, C08L 7112

Patent

active

049804154

ABSTRACT:
Compositions comprising polyphenylene ether copolymers are prepared by blending, preferably in the melt, a functionalized polyphenylene ether with a graft polymer, which is in turn prepared by the free radical reaction of a base polymer such as polyethylene or polypropylene with an olefinic compound containing a tertiary alkyl ester group, which may be a simple carboxylic acid or a carbamic acid ester group. The t-butyl groups are removed by thermal degradation under the reaction conditions to yield a carboxylic acid- or amino-functionalized graft polymer which reacts with the polyphenylene ether.

REFERENCES:
patent: 4604415 (1966-08-01), Hambrecht et al.

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