| 摘要 |
PROBLEM TO BE SOLVED: To provide a high damping rubber composition with a small hysteresis dependence. SOLUTION: A high damping rubber composition comprising 100 pts.wt. of a diene rubber, 25-55 pts.wt. of a resin, 0-50 pts.wt. of a softener and 20-150 pts.wt. of a reinforcement, is formed in such a way that the first step in the rubber kneading comprises the preparing of a master batch which, putting the pts.wt. of the diene rubber=A, those of the resin=B, those of the softener= C, and those of the reinforcement=D, satisfies the relationship shown in formula I (wherein, 20<=A<=100; 0<=B<=55; 0<=C<=5; and 0.16<=D<=150, provided D is 80% or more of a blended amount of the whole reinforcers) and that the second and subsequent steps comprises the blending of the obtained master batch, the remaining diene rubber, reinforcements, and the other additives.
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