Process for the production of ethylene graft copolymers containi

Details Process for the production of ethylene graft copolymers containi Process for the production of ethylene graft copolymers containi

1981-08-24

1982-08-31

Seccuro, Carman J.

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

Synthetic resins

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

525244, 525285, 525329, 525378, 525374, 525379, 525384, 5253295, C08F26304, C08F25502

Patent

active

043473415

ABSTRACT:
A process for the production of ethylene graft copolymers containing anhydride or carboxyl groups in homogeneous or heterogeneous phase in tert.-butanol or methylene chloride wherein (A) from 5 to 70% by weight of a monomer mixture of: (a) from 10 to 80% by weight of a vinyl ester of an aliphatic C.sub.1 -C.sub.18 -monocarboxylic acid; and (b) from 90 to 30% by weight of maleic acid anhydride and/or its C.sub.1 -C.sub.20 -alkyl semiesters; are radically polymerized in the presence of (B) from 95 to 30% by weight of an ethylene homopolymer or an ethylene/vinyl ester copolymer as the graft substrate.

REFERENCES:
patent: 3949019 (1976-04-01), Zeitler et al.
patent: 4157362 (1979-06-01), Morishita et al.

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