| abstract |
The present invention provides a rubber composition having both low heat build-up and good processability, and a pneumatic tire using the rubber composition. A rubber component containing a specific modified polymer composed of a conjugated diene polymer and / or a conjugated diene-aromatic vinyl copolymer, a reinforcing filler composed of carbon black alone or carbon black and silica, and a specific specification A rubber composition containing the alkoxysilane compound and a pneumatic tire using the rubber composition. [Selection] Figure 1 |