Thermoplastic rubber blends of polycarbonates and block copolymers

摘要

Mixtures of (1) 99 to 1% of one or more segment copolymers of alternating linear or branched segments A and B wherein A are polymer blocks of aromatic vinyl compounds with Tg>20 DEG C. (hard segment) and B are polymer blocks containing polymerized conjugated dienes with Tg>0 DEG C. (soft segment), and (2) 1 to 99% of one or more aromatic polycarbonates in which the linear chains consist to an extent of at least 50% of structural units of the formula <IMAGE> (1) wherein X=C1-C5 alkylene or alkylidene.