Process for the preparation of mixes of acrylic rubbers with sty

Details Process for the preparation of mixes of acrylic rubbers with sty Process for the preparation of mixes of acrylic rubbers with sty

1983-05-31

1985-03-05

Bleutge, John C.

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

Synthetic resins

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

525119, C08L 6302

Patent

active

045031908

ABSTRACT:
The impact-resistance characteristics of styrene/acrylonitrile copolymers (SAN) are improved by the admixture to them of acrylic rubbers consisting of either copolymers or terpolymers of ethyl and/or butyl acrylate with acrylic and/or methacrylic acid, by carrying out said mixing in the presence of from 0.05 to 2% by weight of a halide chosen out from among: ZnCl.sub.2, FeCl.sub.3, AlCl.sub.3, CdCl.sub.2, BF.sub.3.(C.sub.2 H.sub.5).sub.2 O; and of 0.5-5 mols, on 100 mols of acrylic rubber, of an epoxy cross-linking compound, at temperatures comprised between the glass transition temperature of the SAN copolymer and 220.degree. C.

REFERENCES:
patent: 3183281 (1965-05-01), Clemens
patent: 3249564 (1966-05-01), Haskell

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