Blends of polystyrene/polypropylene grafted polymers and elastomeric block copolymers

摘要

Compositions comprising a polypropylene grafted with polystyrene and a selectively hydrogenated monoalkenyl aromatic/conjugated diene block copolymer have improved melt viscosity and toughness when the block copolymer component is designed to have weak monoalkenyl aromatic domains.