Propylene resin compositions

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United States of America Patent

PATENT NO 5391618
SERIAL NO

08135553

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Abstract

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A propylene resin composition comprising: 50 to 97% by weight of component (A) which is a propylene polymer having an MFR of 5 to 200 g/10 min, and 50 to 3% by weight of component (B) which is an ethylene-.alpha.-olefin copolymer of an .alpha.-olefin content of 10 to 60% by weight and of an .alpha.-olefin having 4 to 18 carbon atoms, said ethylene-.alpha.-olefin copolymer having the following properties (a) to (c): (a): a density of 0.913 g/cm.sup.3 or less, (b): an MFR of 0.01 to 20 g/10 min, and (c): a flexural rigidity according to ASTM D747 of 2,000 kg/cm.sup.2 or less. The composition has improved impact resistance at both room temperature and low temperatures, a good property balance between rigidity and impact resistance, and high moldability.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI PETROCHEMICAL COMPANY LIMITED5-2 MARUNOUCHI 2-CHOME CHIYODA-KU TOKYO-TO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ikeno, Hajime Yokkaichi, JP 9 171
Shichijo, Keiko Yokkaichi, JP 8 173
Yamamoto, Koji Yokkaichi, JP 384 3625

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