Polymer composition containing a polypropylene polymerized using a high-activitycatalyst

摘要

Polymer composition comprising a polypropylene polymerized using a high-activity catalyst, which polymer composition contains an elastomer phase originating from a propylene-ethylene block copolymer, which elastomer phase contains a high-molecular weight ethylene polymer with an intrinsic viscosity (Decalin, 135 DEG C) of at least 3.0 dl/g. The polypropylene polymerized using a high-activity catalyst has preferably been polymerized using a supported Ziegler-Natta catalyst.