| 摘要 |
1. A process for the manufacture of a moldable polypropylene composition comprising 90 to 60% by weight of polypropylene, 4 to 30% by weight of polyethylene and 6 to 30% by weight of a rubber-elastic ethylene-propylene copolymer by mixing and homogenizing the polyethylene with the ethylene-propylene copolymer to give a rubber mixture, mixing the rubber mixture with the polypropylene with subsequent granulation, which comprises mixing a rubber mixture and a polypropylene, the melt indices MFI (230/5) of rubber mixture (RM) to MFI (230/5) of propylene (PP) of which are in a relation of MFI (230/5) - PP/MFI (230/5) - RM = 2 to 15. |
