| 摘要 |
PROBLEM TO BE SOLVED: To obtain a vibrationproof rubber composition causing no drop-off of friction-reducing effect with the lapse of time, suppressed in allophone generation, and useful for stabilizer bushes, etc., by incorporating a rubber component containing a specified amount of butadiene rubber with a curing agent and an unsaturated fatty acid amide. SOLUTION: This vibrationproof rubber composition is obtained by incorporating 100 pts.wt. of a rubber component containing >=78wt.% of butadiene rubber with pref. 2-8 pts.wt. of a curing agent such as sulfur and pref. 10-50 pts.wt. of an unsaturated fatty acid amide such as oleamide. This rubber composition has a crosslink density of 2.9×10<4> to 7.0×10<4> mol/cm<3> and the unsaturated fatty acid amide bloom film thickness growth of >=25μm after left to stand for 6 days at 40 deg.C.
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