摘要:
The higher .alpha.-olefin copolymers obtained in accordance with the present invention are copolymers derived from higher .alpha.-olefin and non-conjugated diene represented by the following general formula [I], and (a) the non-conjugated diene content thereof is from 0.01 to 30 mol %, and (b) the intrinsic viscosity [.eta.], as measured in decahydronaphthalene at 135.degree. C., of said copolymer is from 1.0 to 10.0 dl/g. ##STR1## The invention also provides a process for preparing such higher .alpha.-olefin copolymers as illustrated above, and vulcanization products obtained from said copolymers.Furthermore, the invention provides vulcanizable compositions containing rubber comprising of the above-mentioned higher .alpha.-olefin copolymers and a specific diene rubber or a specific ethylene/.alpha.-olefin copolymer rubber.
摘要:
Disclosed is a semiconductive rubber foam having a volume resistivity that can be controlled to a practical level and retaining an initial softness (hardness) even after the lapse of time. This semiconductor rubber foam is composed of a molded article obtained by curing and foaming a rubber composition comprising (A) 100 parts by weight of a chlorinated ethylene/.alpha.-olefin copolymer rubber and (B) 10 to 50 parts by weight of carbon black. The volume resistivity of this semiconductive rubber foam has is in the range of from 10.sup.5 to 10.sup.11 .OMEGA.-cm.
摘要:
A vulcanizable rubber composition containing (i) (A) a chlorine-containing rubber and (B) a triazinethiol.amine salt or (ii) (a) a chlorine-containing rubber, (b) a triazinethiol as a vulcanization agent, and (c), as a vulcanization agent, (c-1) an aromatic carboxylic acid amine salt, (c-2) an aliphatic carboxylic acid amine salt, and (c-3) a phenolamine salt.