| 摘要 |
A rubber composition includes a rubber component and particulates of a crystalline syndiotactic-1,2- polybutadiene resin dispersed therein. The particulates have the average particle diameter of 1 to 500 .mu.m, and a melting point of the crystalline syndiotactic-1,2- polybutadiene resin is not less than 110.degree.C. A compounding ratio of the resin is 5 to 60 parts by weight relative to 100 parts by weight of the rubber component. The rubber composition is useful for tires, other rubber articles, etc.
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