Polymer compositions and a method for enhancement in phase compa

Details Polymer compositions and a method for enhancement in phase compa Polymer compositions and a method for enhancement in phase compa

1978-10-11

1980-11-18

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...

525192, 525222, 525239, C08L 2316

Patent

active

042347033

ABSTRACT:
Thermoplastic compositions are disclosed which contain, as principle ingredients, a relatively rigid polymer, such as polyvinyl chloride and/or chlorinated polyvinyl chloride and an EPM and/or an EPDM type elastomer. In addition to the above components, the composition can have incorporated therein a phase compatibility promotion agent, such as chlorinated polyethylene or poly(ethylene-co-vinyl acetate), or mixtures thereof. This phase compatibility promotion agent helps insure more uniform distribution of the elastomer throughout the relatively rigid polymer and improved cohesion of the resultant composition. Also disclosed are methods for enhancement in the compatibility of relatively rigid polymers and elastomers through the use of such phase compatibility promotion agents.

REFERENCES:
patent: 3085082 (1963-04-01), Baer et al.
patent: 3816347 (1974-06-01), Luh
patent: 3819554 (1974-06-01), Blanchard

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