Modified carboxyl-containing polyphenylene ether resins

Details Modified carboxyl-containing polyphenylene ether resins Modified carboxyl-containing polyphenylene ether resins

1986-11-12

1988-06-14

Pertilla, Theodore E.

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

Synthetic resins

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

525392, 525905, C08L 7104

Patent

active

047512687

ABSTRACT:
A process for the preparation of modified polyphenylene ether resins by grafting fumaric acid, preferably at from 270.degree. to 350.degree. C., onto polyphenylene ethers which are mixed with vinylaromatic polymers, and modified polyphenylene ether resins consisting of from 4.95 to 95 parts by weight of polyphenylene ether, from 95 to 4.95 parts by weight of vinylaromatic polymer and from 0.05 to 10 parts by weight of grafted fumaric acid.

REFERENCES:
patent: 4097556 (1978-06-01), Toyama et al.
patent: 4283511 (1981-08-01), Ueno et al.
patent: 4287321 (1981-09-01), Olander
patent: 4338410 (1982-07-01), Ueno et al.

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