Title:
CYCLIC OLEFIN-DIENE COPOLYMER AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
Japanese Patent JP2008239982
Kind Code:
A
Abstract:
To provide a cyclic olefin-diene copolymer excellent in heat resistance, and to provide a method for producing the same.
The present invention relates to a copolymer comprising units represented by formula (1) and cyclic olefin units, and to a method for producing the copolymer. In the formula, X1 to X4 are each independently the group 16 atom of the periodic table; R1 and R2 are each independently H or a 1 to 20C hydrocarbon; and A1 to A10 are each independently H, a halogen atom, an alkyl, an aralkyl, an aryl, a substituted silyl, an alkoxy, an aralkyloxy, an aryloxy, a disubstituted amino, or a hydrocarbonthio.
Inventors:
KOSAKATA KOTARO
TAKEUCHI DAISUKE
PARK SEHOON
UEMURA MAKOTO
FUJITA MASAYUKI
TAKEUCHI DAISUKE
PARK SEHOON
UEMURA MAKOTO
FUJITA MASAYUKI
Application Number:
JP2008047964A
Publication Date:
October 09, 2008
Filing Date:
February 28, 2008
Export Citation:
Assignee:
TOKYO INST TECH
SUMITOMO CHEMICAL CO
SUMITOMO CHEMICAL CO
International Classes:
C08F4/70; C08F232/04; C08F236/20
Domestic Patent References:
| JP2005060664A | 2005-03-10 | |||
| JPH09302020A | 1997-11-25 |
Foreign References:
| WO2003031487A1 | 2003-04-17 | |||
| WO2007119804A1 | 2007-10-25 |
Attorney, Agent or Firm:
Toru Nakayama
Toru Sakamoto
Toru Sakamoto