Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1993-11-18
1995-11-07
Seccuro, Jr., Carman J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525348, 5253482, 5253486, 525193, 525320, 525322, 525324, C08L 2308, C08L 2316, C08L 2318
Patent
active
054649056
ABSTRACT:
An ethylene/.alpha.-olefin copolymer composition containing a first and second ethylene/.alpha.-olefin copolymer is disclosed. The first ethylene/.alpha.-olefin copolymer is prepared in the prsence of a polymerization catalyst containing an organoaluminum oxy compound and at least two kinds of metallocene compounds (b) and the second ethylene/.alpha.-olefin copolymer, which differs from the first in at least one physical property, is prepared in the presence of a polymerization catalyst containing an organoaluminum oxy compound and a metallocene compound (b'). The ethylene/.alpha.-olefin copolymer composition has excellent moldability and heat stability properties and forms films having high transparency and mechanical strength.
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Database WPI, Section Ch, Week 9043, Derwent Publications Ltd., London, GB; Class A17, AN 90-326155 & JP-A-02 235 947 (Tosoh Corp), 18 Sep. 1990.
Inagaki Hajime
Ohta Seiji
Takahashi Mamoru
Todo Akira
Tsutsui Toshiyuki
Mitsui Petrochemical Industries Ltd.
Seccuro, Jr. Carman J.
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