C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/488
C08F 212/00 (2006.01) C08F 212/10 (2006.01)
Patent
CA 1161993
ABSTRACT A process for reducing the color of styrene- -acrylonitrile polymers comprising polymerizing a feed- stream of styrene and acrylonitrile monomers, optionally admixed with a diluent, in the presence of an unsymmetrical tertiary-aliphatic azoalkane catalyst, said feedstream being substantially oxygen-free and said feedstream being maintained within a polymerization zone for a limited time. 27,467-F
367921
Smart & Biggar
The Dow Chemical Company
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