Vibration damping rubber composition

摘要

A vibration damping rubber composition having an excellent vibration damping performance includes the following (A) to (C) as essential components: (A) a diene-based rubber; (B) a vulcanizing agent of a bismaleimide compound represented by the following formula (1): [wherein X denotes a substituted or unsubstituted aliphatic saturated hydrocarbon group; and R¹ to R⁴ may be the same or different and each denote a hydrogen atom, an alkyl group, -NH₂, or -NO₂, provided that the bismaleimide compound represented by formula (1) excludes a compound in which X is -(CH₂)n- (n is an integer of 4 to 12) and all R¹ to R⁴ are hydrogen atoms], wherein the vulcanizing agent is sulfur-free; and (C) a vulcanization accelerator.