Polypropylene composition

Details Polypropylene composition Polypropylene composition

C - Chemistry, Metallurgy

08

L

400/3079

C08L 51/00 (2006.01) C08K 3/00 (2006.01) C08L 51/06 (2006.01) C08L 53/00 (2006.01)

Patent

CA 2002506

ABSTRACT The present invention relates to a polypropylene composition comprising a crystalline ethylene-propylene block copolymer having an ethylene content of 5-20% by weight and a melt flow index of 11-90, a thermoplastic elastomer, an amorphous propylene-.alpha. -olefin random copolymer having a number-average molecular weight of 1,000-20,000 and a propylene content of 40-95% by weight and an inorganic filler. This composition can be made into a molded article having no flow mark on the surface. The molded article is superior in rigidity, heat deformation resistance, low temperature impact resistance and coatability, has appearance free from waviness, voids, etc., and is suitable for use particularly in high quality bumper for automobiles.

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