Polypropylene molding composition and process for its...

Details Polypropylene molding composition and process for its... Polypropylene molding composition and process for its...

C - Chemistry, Metallurgy

08

L

400/4919

C08L 23/12 (2006.01) C08F 297/00 (2006.01) C08F 297/08 (2006.01)

Patent

CA 1052933

POLYPROPYLENE MOLDING COMPOSITION AND PROCESS FOR ITS PREPARATION Abstract of the disclosure A polypropylene molding composition having an excellent impact strength at a temperature down to -60°C and simultane- ously a good hardness contains of from 70 to 90% by weight of a polypropylene, 2 to 10% by weight of an ethylene propylene copolymer and of from 8 to 25% by weight of a polyethylene and is distinguished by a melt index MFI 230/5 lower than that of the polypropylene contained therein and simultaneously super- ior by the coefficient 1.3 to 7.0 to that of a polypropylene prepared in the presence of the same catalyst as the molding composition and having the same RSV(reduced specific viscosity)

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