C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 53/00 (2006.01) C08K 3/00 (2006.01) C08L 23/10 (2006.01) C08L 23/16 (2006.01)
Patent
CA 2175118
A thermoplastic resin composition with improved low-temperature impact strength and rigidity against heat, comprising (I) 10-40% by weight of a mixture of (a) 10-50% by weight of a propylene homo- polymer and/or an ethylene-propylene block copolymer (an isotactic pentad fraction of a propylene homopolymer portion being 0.98 or above) and (b) 50-90% by weight of an olefin-based copolymer rubber, said mixture having been dynamically heat treated in the presence of an organic peroxide and a crosslinking agent, (II) 20-85% by weight of a propylene homopolymer and/or an ethylene- propylene block copolymer (an isotactic pentad fraction of a propylene homopolymer portion being 0.98 or above and a melt index of the propylene homopolymer portion being 30-150 g/10 min), and (III) 5-40% by weight of an inorganic filler.
Miyake Yuichi
Nishio Takeyoshi
Nomura Takao
Sadatoshi Hajime
Suzuki Haruyuki
Marks & Clerk
Sumitomo Chemical Co. Ltd.
Toyota Jidosha Kabushiki Kaisha
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