Posttreatment of copolymer of styrene and acrylonitrile

Details Posttreatment of copolymer of styrene and acrylonitrile Posttreatment of copolymer of styrene and acrylonitrile

1975-02-27

1976-12-21

Wong, Jr., Harry

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

Synthetic resins

Treating polymer containing material or treating a solid...

260880R, 526 19, 526 23, 526 30, 526 47, 526342, C08F22044

Patent

active

039987973

ABSTRACT:
A process for producing a copolymer of styrene and acrylonitrile substantially free of acrylonitrile which comprises copolymerizing styrene and acrylonitrile and treating the resulting copolymer with an aqeuous solution of a sulphur compound selected from the group consisting of alkaline sulfides and alkaline disulfides.

REFERENCES:
patent: 3491071 (1970-01-01), Lanzo
patent: 3780006 (1973-12-01), Zweigle

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