| 摘要 |
PROBLEM TO BE SOLVED: To improve durability of a bead part of a tire for high speed/high load, and to enable the rubber for a tire tread part to have both of abrasion resistance and low heat build-up properties. SOLUTION: The rubber composition for the tire comprises 100 pts. wt. dienic rubber comprising 70-20 pts. wt. natural rubber and/or isoprene rubber, and 30-80 pta. wt. butadiene rubber, 0.20-3.0 pts. wt. zinc bis(1-hydroxy-2(1H)-pyridinethionate-O,S) and 60-90 pts. wt. carbon black including an HAF glade and having a particle diameter smaller than it. The rubber composition for the tire comprises 100 pts. wt. dienic rubber, 40-60 pts. wt. carbon black having 110-280 m<SP>2</SP>/g specific surface area measured by CTAB adsorption, and 0.20-3.0 pts. wt. zinc bis(1-hydroxy-2(1H)-pyridinethionate-O,S). COPYRIGHT: (C)2005,JPO&NCIPI
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