Rubber-modified styrene resin composition

Details Rubber-modified styrene resin composition Rubber-modified styrene resin composition

1986-12-18

1988-04-19

Schofer, Joseph L.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524269, 525 64, 525 83, 525 84, C08K 524, C08L 5100

Patent

active

047390018

ABSTRACT:
A rubber-modified styrene resin composition is disclosed, comprising (A) a rubber-modified styrene resin having dispersed therein from 1 to 15% by weight of a rubbery polymer having an average particle size of from 0.1 to 2.5 .mu.m, (B) an organopolysiloxane in an amount of from 0.01 to 0.2% by weight on silicon conversion based on the rubber-modified styrene resin, and (C) an ethylene-unsaturated carboxylic acid ester copolymer in an amount of from 0.05 to 10% by weight based on the rubber-modified styrene resin. The composition exhibits markedly improved areal impact strength while retaining other physical properties and is, therefore, useful for exterior parts.

REFERENCES:
patent: 3686356 (1972-08-01), Saam
patent: 4631307 (1986-12-01), Hosada
Kobunshi ("High Polymer"), vol. 6, No. 6, pp. 431-438, (1977).
Esbrite/Sumibrite brochure.

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