Title:
UNSATURATED ETHYLENIC COPOLYMER AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3497925
Kind Code:
B2
Abstract:
PURPOSE: To obtain a new unsaturated ethylenic copolymer having excellent weatherability, heat resistance and ozone resistance and high vulcanization rate.
CONSTITUTION: This copolymer is a random copolymer of (i) ethylene, (ii) a 3-20C α-olefin and (iii) at least one kind of straight-chain or branched-chain non-conjugated triene or tetraene having one vinyl group in one molecule. The ratios of (i) the constituent unit derived from ethylene, (ii) the constituent unit derived from the 3-20C α-olefin and (iii) the constituent unit derived from the non-conjugated triene or tetraene are 30-92mol%, 6-70mol% and 0.1-30mol%, respectively. The molar ratio of [(i) the constituent unit derived from ethylene]/[(ii) the constituent unit derived from the 3-20C α-olefin] is 40/60 to 92/8 and the intrinsic viscosity [η] of the copolymer measured in decalin at 135°C is 0.05-10dL/g.
Inventors:
Toshihiro Aine
Kawasaki Masaaki
Hideshi Nakahama
Tatsu Ishida
Katsuya Takahashi
Toshiyuki Tsutsui
Onishi Hitoshi
Masaaki Yasuda
Kihara Noriaki
Kawasaki Masaaki
Hideshi Nakahama
Tatsu Ishida
Katsuya Takahashi
Toshiyuki Tsutsui
Onishi Hitoshi
Masaaki Yasuda
Kihara Noriaki
Application Number:
JP17083995A
Publication Date:
February 16, 2004
Filing Date:
July 06, 1995
Export Citation:
Assignee:
Mitsui Chemicals, Inc.
International Classes:
C08F4/642; C08F4/60; C08F4/64; C08F4/6592; C08F210/16; C08F210/18; C08L23/08; (IPC1-7): C08F210/18; C08F4/64; C08L23/08
Domestic Patent References:
| JP499592A | ||||
| JP5222083A | ||||
| JP8337697A | ||||
| JP8311267A |
Attorney, Agent or Firm:
Shunichiro Suzuki
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