| 主权项 |
1. A rubber composition for tire treads, of which the temperature of the peak position of the temperature curve of tan δ is −16.0° C. or higher and −6.0° C. or lower, tan δ at the peak position is larger than 1.13, tan δ at 0° C. is 0.95 or more, and the value obtained by dividing the absolute value of the difference between tan δ at −5° C. and tan δ at 5° C. by the temperature difference between −5° C. and 5° C. {|(tan δ at −5° C.)−(tan δ at 5° C.)|/10} (/° C.) is smaller than 0.0451° C.[Method for measurement of tan δ Using a dynamic tensile viscoelasticity measuring testing machine, the value of tan δ at a frequency of 52 Hz, at an initial strain of 2%, at a dynamic strain of 1% and at a heating rate of 3° C./min is measured in a range of from −25° C. to 80° C.] |
