Toyota Jidosha Kabushiki Kaisha

Ube Industries, Inc.

Yasufumi Takasaki

Takao Nomura

Takeyoshi Nishio

Ikunori Sakai

Tomohiko Akagawa

Osamu Fukui

Kouhei Ueno

Toshio Yokoi

Saburo Hinenoya

Yoshihiro Inuizawa

The polypropylene resin composition of the present invention can be obtained by melt mixing:

Impact-resistant polypropylene resin compositions

A modified polyolefin composition useful for producing a shaped article having an excellent bonding property and an enhanced impact resistance comprises a modified olefin polymer material prepared by melting a mixture of an olefin polymer material comprising at least one crystalline ethylene-propylene random copolymer containing from 0.5 to 5% by weight of copolymerized ethylene and having a melt flow index of from 0.2 to 5 with a modifying agent consisting of at least one unsaturated dicarboxylic anhydride and a radical reaction initiator at a temperature of from 170.degree. C. to 270.degree. C. at which the mixture is melted; and a polyolefin rubber having a Mooney viscosity ML.sub.1+4 (100.degree. C.) of 10 to 100 and mixed in an amount of from 5% to 40% based on the sum of the weight of the modified olefin polymer material and the polyolefin rubber with the modified olefin polymer material at a temperature at which the mixture is melted.

Modified polyolefin composition and process for producing the same

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Sakai, Japan

Yasufumi Takasaki