Title:
【発明の名称】弾性α-オレフィン/環式オレフィンコポリマー
Document Type and Number:
Japanese Patent JPH08505898
Kind Code:
A
Abstract:
Rubbery, amorphous cyclic olefin/ alpha -olefin copolymers in a molar ratio from 5/95 to 30/70. The copolymers are rubbery and have the general properties of thermoplastic elastomers, e.g. good elastic recovery, toughness, and high elasticity, and have a relatively low glass transition temperature (Tg) to avoid brittleness and hardness under normal use temperature. The copolymers also have a high molecular weight, a narrow molecular weight distribution and a uniform, random comonomer distribution to impart a rubbery loss modulus plateau over the temperature range from Tg to above 100 DEG C., and are optionally lightly crosslinked or plasticized to further extend their useful temperature range.
Inventors:
Harrington, Bruce Alan
Application Number:
JP51715794A
Publication Date:
June 25, 1996
Filing Date:
January 19, 1994
Export Citation:
Assignee:
Exxon Chemical Patents, Inc.
International Classes:
C08F4/642; C08F210/00; C08F210/02; C08F232/08; C08L23/10; C08L23/16; (IPC1-7): C08F210/00
Attorney, Agent or Firm:
Yuzo Yamazaki (1 person outside)