Title:
VULCANIZABLE RUBBER COMPOSITION
Document Type and Number:
Japanese Patent JP3255686
Kind Code:
B2
Abstract:
PURPOSE: To prepare the title compsn. excellent in strengths, heat resistance, weatherability, vibration-damping properties, etc., by mixing a specific higher α-olefin copolymer with an ethylene-α-olefin copolymer in a specified wt. ratio.
CONSTITUTION: A higher %a-olefin copolymer is produced by copolymerizing a 6-20C higher α-olefin (e.g. octene-1), an α,ω-diene of formula I (wherein n is 1-3; and R1 and R2 are each H or 1-8C alkyl)(e.g. 1,4-hexadiene).and a nonconjugated diene of formula II (wherein n is 1-5; R3 is 1-4C alkyl; and R4 and R5 are each l H or 1-8C alkyl provided that they are not simultaneously H)(e.g. 4-methyl-1,4-hexadiene). The title compsn., suitable as a vibration-damping rubber, is prepd. by mixing the copolymer with an ethylene/3-6C α-olefin copolymer in a wt. ratio of (5:95)-(95:5).
Inventors:
Kazuhiko Murata
Kei Okada
Tetsuo Tojo
Kawasaki Masaaki
Takamasa Toshimasa
Kei Okada
Tetsuo Tojo
Kawasaki Masaaki
Takamasa Toshimasa
Application Number:
JP5000892A
Publication Date:
February 12, 2002
Filing Date:
March 06, 1992
Export Citation:
Assignee:
Mitsui Chemicals, Inc.
International Classes:
C08L19/00; C08L21/00; C08L23/04; C08L23/18; (IPC1-7): C08L23/18; C08L19/00; C08L23/04
Attorney, Agent or Firm:
Shunichiro Suzuki