IN-REACTOR POLYMER BLENDS

摘要

This invention relates to in-reactor polymer blends comprising at least 60 mole % of propylene and from 0.01 to 10 mole% of at least one diene selected from the group of C6 to C12 a,?-diene, norbornadiene, vinyl norbornene and mixtures thereof with the balance being ethylene. The blend comprises first and second polymers having different crystallinities and or different Tg's.