摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method for a rubber composition capable of enhancing heat release characteristic by enhancing heat conductivity without impairing breaking characteristic, a rubber composition obtained by it, and a tire using it. SOLUTION: In the manufacturing method for the rubber composition containing (A) a diene based rubber, (B) a diene based rubber being same as the diene based rubber (A) or different from it, (C) a reinforcement filler, and (D) a crosslinking agent, after a high aspect ratio filler (C1), i.e., a part of the reinforcement filler (C) is added to the diene based rubber (A) to obtain a masterbatch, the diene based rubber (B), a low aspect ratio filler (C2), i.e., a remained part of the reinforcement filler (C), and the crosslinking agent (D) are kneaded in the obtained masterbatch. COPYRIGHT: (C)2009,JPO&INPIT
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