Process for the preparation of stabilized styrene copolymers containing elastomer particles

摘要

ABS copolymers and similar styrene or alpha -methylstyrene copolymers which contain an elastomer phase are stabilized against light-induced degradation by a) incorporation of a copolymerizable sterically hindered amine in, and b) addition of a non-copolymerizable sterically hindered amine to, the copolymer. Preferred sterically hindered amines are polyalkylpiperidines.