| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber composition for tire tread capable of improving the rolling resistance, heat deterioration resistance and suppression to heat generation of tire, while maintaining its abrasion resistance and processability. SOLUTION: The rubber composition contains (A) sulfur, (B) 1,6-bis(N,N-dibenzyl thiocarbamoyl dithio)hexane, (C) at least one vulcanization promoter selected from sulfenamide-based vulcanization promoters and (D) at least one vulcanization promoter selected from thiuram-based vulcanization promoters. In this rubber composition, the compounding amounts of the components (A) to (D) are 0.1-2 pts.wt., based on 100 pts.wt. of a diene rubber component, respectively, preferably meeting all of the following relationships (1) to (5): (1) (A)≥(B), (2) (C)≥(D), (3) 1.0≤(A)+(B)≤2.0, (4) 1.0≤(C)+(D)≤2.0, and (5) 0.5≤[(A)+(B)]/[(C)+(D)]≤1.5. COPYRIGHT: (C)2009,JPO&INPIT
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