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Title:
METHOD FOR PRODUCING CYCLIC OLEFIN-BASED ADDITION COPOLYMER, CYCLIC OLEFIN-BASED ADDITION COPOLYMER AND ITS USE
Document Type and Number:
Japanese Patent JP2006052347
Kind Code:
A
Abstract:

To provide a method for producing a cyclic olefin-based addition polymer, with which addition polymerization is readily carried out up to a high polymerization conversion ratio even if an alkyl substituent group-containing bicyclo[2.2.1]hept-2-ene with a coexisting stereoisomer, especially an alkyl substituent group-containing bicyclo[2.2.1]hept-2-ene comprising a large amount of endo isomer is used as a monomer, molecular weight is controlled by a molecular weight modifier, an obtained addition polymer has transparency in a form such as sheet, film, etc., and has flexibility and toughness and to obtain a cyclic olefin-based addition polymer and a film or sheet composed of the cyclic olefin-based addition polymer.

The method for producing the cyclic olefin-based addition copolymer comprises subjecting a monomer composition having 20-80 mol% of an alkyl substituent group-containing bicyclo[2.2.1]hept-2-ene compound and a specific cyclic olefin-based compound in all monomers to addition copolymerization in the presence of a palladium-based catalyst.


Inventors:
Oshima, Noboru
Yamazaki, Daisuke
Imamura, Takashi
Hayashi, Toshihito
Okita, Kenzo
Application Number:
JP2004000235882
Publication Date:
February 23, 2006
Filing Date:
August 13, 2004
Export Citation:
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Assignee:
JSR CORP
International Classes:
C08F232/04; C08F4/70
Domestic Patent References:
JP2002179875A
JP2003048998A
JP2002012624A
JPH08198919A
JP2002519487A
JPH08176205A
Attorney, Agent or Firm:
鈴木 俊一郎
牧村 浩次
高畑 ちより
鈴木 亨