Title:
VIBRATIONPROOF RUBBER MOLDING AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3255688
Kind Code:
B2
Abstract:
PURPOSE: To produce the title molding excellent in resistances to thermal aging and dynamic fatigue by molding and vulcanizing a specific higher α-olefin copolymer rubber obtd. from a higher α-olefin, an α,ω-diene, and a nonconjugated diene.
CONSTITUTION: A 6-20C higher α-olefin (e.g. hexene-1)(A), an α,ω-diene (B) 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 (C) of formula II (wherein n is 1-5; R3 is 1-4C alkyl; and R4 and R5 are each H or 1-8C alkyl provided that they are not simultaneously H)(e.g. 4-methyl-1,4-hexadiene) are copolymerized in a wt. ratio of monomer A to monomer B of (95:5)-(50:50) and in a molar ratio of monomer C to the sum of the three monomers of 0.01-30%, giving a higher α-olefin copolymer rubber having an intrinsic viscosity at 135°C in decalin of 1-10 dl/g. The rubber is molded and vulcanized to give the title molding.
Inventors:
Kazuhiko Murata
Kei Okada
Tetsuo Tojo
Kawasaki Masaaki
Takamasa Toshimasa
Kei Okada
Tetsuo Tojo
Kawasaki Masaaki
Takamasa Toshimasa
Application Number:
JP5001092A
Publication Date:
February 12, 2002
Filing Date:
March 06, 1992
Export Citation:
Assignee:
Mitsui Chemicals, Inc.
International Classes:
C08F210/14; C08F36/00; C08F210/00; C08F236/20; C08J5/00; C08L23/18; (IPC1-7): C08F210/14; C08F236/20; C08J5/00
Attorney, Agent or Firm:
Shunichiro Suzuki