Title:
METHOD FOR PRODUCING CYCLIC OLEFINIC COPOLYMER
Document Type and Number:
Japanese Patent JP3656991
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a cyclic olefinic copolymer in the presence of a catalyst simultaneously satisfying characteristics which comprise not producing a gel-like polymer component or a solvent-insoluble polymer component, having excellent polymerization activity, having high cyclic olefin copolymerization efficiency and giving the copolymer having a narrow mol.wt. distribution.
SOLUTION: This method for producing the cyclic olefinic copolymer comprises copolymerizing an α-olefin with a cyclic olefin in the presence of a catalyst comprising an aluminoxane and a metallocene compound represented by the general formula [1]: H2C(R'mCp)(R"nCp)MX2 [M is Zr or Hf atom; Cp is a group having a cyclopentadienyl skeleton; R', R" are each a 1 to 10C hydrocarbon group; X is a halogen atom, or the like; (m) and (n) are different from each other, and (m)+(n) is an integer of 3 to 6].
Inventors:
Shigeharu Yamamoto
Sakae Kamiyama
Takemori Riu
Yoko Furuyama
Masao Kawahara
Hiroshi Yamazaki
Sakae Kamiyama
Takemori Riu
Yoko Furuyama
Masao Kawahara
Hiroshi Yamazaki
Application Number:
JP2001276496A
Publication Date:
June 08, 2005
Filing Date:
September 12, 2001
Export Citation:
Assignee:
Maruzen Petrochemical Co., Ltd.
International Classes:
C08F4/642; C08F4/6592; C08F210/02; C08F232/00; (IPC1-7): C08F210/02; C08F4/642; C08F232/00
Domestic Patent References:
| JP2001002721A |
Attorney, Agent or Firm:
Kenji Izumina
Toshiharu Ogawa
Ryozo Yamamoto
Toshiharu Ogawa
Ryozo Yamamoto