US Patent 7268196 Process for producing cycloolefin addition polymer

Patent 7268196 was granted and assigned to JSR Corporation on September, 2007 by the United States Patent and Trademark Office.

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Patent Inventor Names

Michitaka Kaizu0

Noboru Oshima0

Satoshi Ebata0

Takashi Imamura0

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Patent abstract

A process for producing a cycloolefin addition polymer in which one or more cycloolefin monomers can be (co)polymerized by addition polymerization with a small palladium catalyst amount to produce a cycloolefin addition (co)polymer while attaining high catalytic activity. The process for cycloolefin addition polymer production is characterized by addition-polymerizing one or more cycloolefin monomers comprising a cycloolefin compound represented by a specific formula in the presence of a multi-component catalyst comprising (a) a palladium compound and (b) a specific phosphorus compound.

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