CYCLOOLEFIN ADDITION COPOLYMER, PROCESS FOR PRODUCING THE SAME AND MOLDING MATERIAL

Japanese Patent JP2007119660

A

To provide a cycloolefin addition copolymer excellent in heat resistance, transparency, low water absorption and moldability and capable of forming an optical material having a high linear expansion coefficient (high in temperature response), to provide a process for producing the cycloolefin addition copolymer and to provide a molding material comprising the cycloolefin addition copolymer.

The cycloolefin addition copolymer comprises a monomer unit of (A) a cycloolefin and a monomer unit of (B) a 4-12C α-olefin and has a linear expansion coefficient of 80×10-6/°C or more. The process for producing the cycloolefin addition copolymer comprises copolymerizing a monomer of (A) a cycloolefin and a monomer of (B) a 4-12C α-olefin in the presence of (a) a specific transition metal compound belonging to group IV of the periodic table. The molding material comprises the cycloolefin addition copolymer.

WO/1998/056837	METHOD FOR THE PREPARATION OF COPOLYMERS OF ETHYLENE/NORBORNENE-TYPE MONOMERS WITH NICKEL CATALYSTS
JP4665043	Photoresist pattern formation method
WO/2020/241288	CYCLIC OLEFIN RESIN COMPOSITION, MOLDED ARTICLE AND OPTICAL COMPONENT

NISHII KEI
TSUNOKAI YASUO

JP2005315774A

May 17, 2007

October 31, 2005

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NIPPON ZEON CO

C08F232/00; C08F4/6192

JP2004059639A	2004-02-26
JPH09124737A	1997-05-13
JP2002284820A	2002-10-03
JP2005320420A	2005-11-17
JP2000264925A	2000-09-26
JPH11281351A	1999-10-15
JP2004059639A	2004-02-26
JPH09124737A	1997-05-13
JP2002284820A	2002-10-03
JP2005320420A	2005-11-17
JP2000264925A	2000-09-26
JPH11281351A	1999-10-15

Iwao Yamaguchi
Yoshihide Komada
Kiyoshi Matsuzaki

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