Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1978-08-30
1980-07-08
Seccuro, Carman J.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
525 88, 525 89, C08L 5300, C08L 2312, C08L 2308, C08L 2314
Patent
active
042116902
ABSTRACT:
The present invention provides polypropylene resin compositions of excellent gloss, impact resistance and rigidity comprising (A) 100 parts by weight of propylene homopolymer having an intrinsic viscosity in tetraline at 135.degree. C. of no less than 1.9, (B) 40-150 parts by weight of ethylene/propylene copolymer having an intrinsic viscosity in tetralin at 135.degree. C. of 1.4-1.7 and an ethylene content of 2-15 molar % and (C) 40-150 parts by weight of ethylene/propylene copolymer having an intrinsic viscosity in tetralin at 135.degree. C. of no less than 1.9 and an ethylene content of 2-20 molar % or comprising above components (A) through (C) and (D) 5-120 parts by weight of a powdery inorganic filler of an average particle diameter of no more than 0.8 .mu.m, and moldings, i.e. molded articles, prepared from these compositions.
REFERENCES:
patent: 3262992 (1966-07-01), Holzer et al.
patent: 3562790 (1971-02-01), Coover et al.
patent: 3632674 (1972-01-01), Aishima et al.
patent: 3634546 (1972-01-01), Hagemeyer et al.
patent: 3689595 (1972-09-01), Gwinn
patent: 4153587 (1979-05-01), Yui
Asano Hideki
Kokaku Hiroyoshi
Saida Kenichi
Suzuki Katsuhito
Hitachi , Ltd.
Seccuro Carman J.
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