Rubber-modified styrenic resin composition

Details Rubber-modified styrenic resin composition Rubber-modified styrenic resin composition

1996-08-06

1998-12-22

Warzel, Mark

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

Synthetic resins

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

525314, C08F27902

Patent

active

058521240

ABSTRACT:
A rubber-modified styrenic resin composition which has high falling impact strength, high gloss, high tensile strength and the product produced from which has little or no unpleasant odor is provided by controlling the residual styrenic monomers in the resin composition to a content of below 1500 ppm and the residual 4-vinyl cyclohexene to a content of below 150 ppm. The number average particle size of the butadienic rubber is 0.08 to 0.35 .mu.m, the amount of butadienic rubber particles having a particle size of below 0.1 .mu.m is 19.5 to 99%, the amount of the butadienic rubber particles having a particle size of between 0.1 to 0.25 .mu.m is 0.5 to 60%, and the amount of the butadienic rubber particles having a particle size greater than 0.25 .mu.m is 0.5 to 80%, based on the total number of the butadienic rubber particles.

REFERENCES:
patent: 3991136 (1976-11-01), Dalton et al.

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