Process for producing propylene resin composition

摘要: Disclosed are processes for producing polypropylene resin compositions including two or three sorts of propylene-based polymeric materials, the a first step melt-kneading at least propylene-α-olefin block copolymer containing polymer portion composed mainly propylene and having relatively high intrinsic viscosity second product with propylene-ethylene low viscosity. In composition produced by these processes, no substantially fish eyes develop.