Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PRODUCTION OF CYCLOOLEFIN COPOLYMER
Document Type and Number:
Japanese Patent JP3703525
Kind Code:
B2
Abstract:

PURPOSE: To obtain a thermoplastic cycloolefin copolymer having excellent tensile strength and transparency and a high viscosity number by polymerizing a cycloolefin with an acryclic olefin in the presence of a specified catalyst.
CONSTITUTION: At least one cycloolefin is polymerized with at least one acyclic olefin in the presence of a catalyst containing at least one metallocene represented by the formula [wherein M is a metal of group IVb, Vb or VIb in the periodic table; R1 and R2 are each a 1-10C alkyl, a 1-10C alkoxy, a 6-10C aryl, a 6-10C aryloxy, a 2-10C alkenyl, a 7-40C arylalkyl, a 7-40C alkylaryl, an 8-40C arylalkenyl, a halogen, or trifluoromethylsulfo; R3 and R4 are each a mono(poly)cyclic hydrocarbon which together with the transition metal can form a sandwich structure; R5 and R6 are each H, R1 (except trifluoromethylsulfo), a 1-10C haloalkyl, -SiR73, -NR72, -PR72, or the like (wherein R7 is R1) and at least one cocatalyst.


Inventors:
Weller, Dr. Thomas
Osan, Frank
Kueber, Dr. Frank
Aulbach, Michael
Application Number:
JP1995000159084
Publication Date:
October 05, 2005
Filing Date:
June 26, 1995
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HOECHST AG
MITSUI PETROCHEM IND LTD
International Classes:
C08F4/60; C08F4/64; C08F4/642; C08F4/645; C08F4/6592; C08F4/76; C08F4/78; C08F32/00; C08F32/02; C08F210/00; C08F210/02; C08F210/14; C08F232/00; C08F4/659; (IPC1-7): C08F210/02; C08F4/645; C08F232/00
Domestic Patent References:
JP5017530A
JP5262821A
JP62252406A
Attorney, Agent or Firm:
社本 一夫
今井 庄亮
増井 忠弐
栗田 忠彦
小林 泰
細川 伸哉