Propylene polymer, propylene copolymer, and propylene elastomer prepared using novel bridged indenyl containing metallocenes

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United States of America Patent

PATENT NO 5504172
SERIAL NO

08255713

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Abstract

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The novel transition metal compound of the invention is represented by the following formula (I): ##STR1## wherein M is a transition metal; R.sup.1 and R.sup.2 are each a hydrogen atom, a hydrocarbon group or the like; R.sup.3 is an alkyl group of 2 to 20 carbon atoms; R.sup.4 is an alkyl group of 2 to 20 carbon atoms; X.sup.1 and X.sup.2 are each a halogen atom or the like; and Y is a divalent hydrocarbon group, a divalent silicon-containing group or the like. The transition metal compound is useful for an olefin polymerization catalyst with which a propylene (co)polymer having specific structure is prepared.

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Patent Owner(s)

  • MITSUI CHEMICALS, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hashimoto, Mikio Waki, JP 98 3207
Imuta, Junichi Waki, JP 36 914
Kawasaki, Masaaki Waki, JP 72 1498
Kiso, Yoshihisa Waki, JP 28 813
Mizuno, Akira Waki, JP 94 1253
Ueda, Takashi Waki, JP 323 4089

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