| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber composition for a tire, of which the low heat generation property can be improved while the rubber composition maintains hardness, and to provided a pneumatic tire using the composition.SOLUTION: A rubber composition for a tire comprises 5 to 100 pts.mass of silica, 0.5 to 10 pts.mass of triallyl isocyanurate and 0.5 to 10 pts.mass of a hydroxy acid having 8 or more carbon atoms such as 12-hydroxystearic acid, based on 100 pts.mass of diene rubber. A pneumatic tire uses the rubber composition for a tire, particularly in a cap tread of the tire. |
