| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject composition having a low dynamic ratio and excellent in vulcanizing adhesion and vibrationproof characteristics and useful for automotive rubber vibration isolators, etc., by including an acrylate-based polyfunctional monomer and a thiourea-based vulcanization accelerator in a chloroprene-based rubber. SOLUTION: This composition is obtained by including (B) an acrylate-based polyfunctional monomer (e.g. ethylene dimethacrylate) and (C) a thiourea-based vulcanization accelerator (e.g. trimethylurea) in (A) a chloroprene-based rubber (e.g. a xanthogen-modified chloroprene-based rubber). The amounts of the components based on 100 pts.wt. of the component A are preferably 0.3-20 pts.wt. of the component B and 0.5-5 pts.wt. of the component C. An additive such as a reinforcing agent (e.g. carbon black), a softening agent (e.g. a lubricating oil), a processing aid (e.g. stearic acid) or an antioxidant (e.g. a metal carbamate) may be compounded with the above composition.
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