| abstract |
Conventionally, it has been disclosed to use 1,6-bis (N, N′-dibenzylthiocarbamoyldithio) hexane in a rubber composition in order to improve the heat resistance of the rubber composition. However, this conventional rubber composition has room for improvement in heat resistance and aging resistance. An object of the present invention is to provide a rubber composition and a pneumatic tire using the rubber composition which have greatly improved heat resistance and aging resistance. SOLUTION To 100 parts by mass of a diene rubber, 2-8 parts by mass of a cyclic polysulfide and 0.2-5 parts by mass of 1,6-bis (N, N′-dibenzylthiocarbamoyldithio) hexane are blended. And a pneumatic tire using the rubber composition. [Selection] Figure 1 |