Poly(phenylene ether)poly(vinyl aromatic) compositions

Details Poly(phenylene ether)poly(vinyl aromatic) compositions Poly(phenylene ether)poly(vinyl aromatic) compositions

1979-12-10

1981-09-01

Welsh, Maurice J.

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

Synthetic resins

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

528 86, 528205, C08G 6540, C08G 6544

Patent

active

042873215

ABSTRACT:
Polyphenylene ether-poly(vinyl aromatic) compositions are prepared by oxidatively coupling a phenol dissolved in a basic reaction medium comprising a vinyl aromatic compound in the presence of a manganese chelate catalyst, selectively liquid-liquid extracting base-reactive by-products, then thermally polymerizing the vinyl aromatic compound.

REFERENCES:
patent: 3383435 (1968-05-01), Cizek
patent: 3700750 (1972-10-01), Yamanouchi et al.
patent: 3781382 (1973-12-01), Izawa et al.
patent: 3956242 (1976-05-01), Olander
patent: 4075174 (1978-02-01), Olander
patent: 4207406 (1980-06-01), Olander

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