Removal of acrylonitrile from latex with oximes

Details Removal of acrylonitrile from latex with oximes Removal of acrylonitrile from latex with oximes

C - Chemistry, Metallurgy

08

F

400/7010, 400/92

C08F 6/16 (2006.01) C08F 6/00 (2006.01) C08F 20/44 (2006.01) C08K 5/33 (2006.01)

Patent

CA 1187227

ABSTRACT OF THE DISCLOSURE Acrylonitrile is a monomer that is widely used in the synthesis of a vast variety of polymers. Undesirable quantities of unpolymerized residual acrylonitrile are often present in these acrylonitrile polymers. This residual or free acrylonitrile dissolved in an acrylo- nitrlle polymer and/or its emulsifier system and the water phase used in its polymerization can be reduced signifi- cantly in concentration by treatment with oximes. Oximes react with acrylonitrile by an oxygen-cyanoethylation react which results in the formation of a cyanoethyl oximino ether linkage.

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