| abstract |
Provided is a pneumatic tire that can keep rolling resistance low, prevent generation of static electricity during running of the tire, and improve crack resistance. An internal conductive layer disposed between a carcass and a sidewall rubber, a conductive rubber disposed in contact with the internal conductive layer and in a lower region at both ends of a breaker, the conductive Covering rubber 5 which has a contact area with rubber 4 and is arranged to cover the upper part of breaker 9 part, energization embedded in the tread part so as to be in contact with the covering rubber 5 and partially exposed on the surface of the tread The rubber 6 includes a bead rubber disposed in a region in contact with the inner conductive layer 14 and in contact with the rim flange of the bead. The inner conductive layer 14 is 30 to 90% by mass of natural rubber and 70 to 10 of epoxidized natural rubber. It is produced using a rubber composition for an internal conductive layer containing 10 to 50 parts by mass of carbon black and 10 to 50 parts by mass of silica with respect to 100 parts by mass of a rubber component containing 5% by mass. [Selection] Figure 1 |