Posttreatment of copolymer of styrene and acrylonitrile

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

1976-01-09

1977-03-22

Wong, Jr., Harry

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

526234, 526342, C08L 900

Patent

active

040137392

ABSTRACT:
A process for producing a copolymer of styrene and acrylonitrile substantially free of acrylonitrile which comprises copolymerizing styrene and acrylonitrile, and optionally in the presence of an elastomer, and treating the resulting copolymer with an aqueous 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
patent: 3855355 (1974-12-01), Moore
patent: 3912794 (1975-10-01), Bracke
patent: 3917748 (1975-11-01), Vincent et al.

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