To provide a pneumatic tire that prevents the accumulation of static electricity produced at a ground contact surface of the tire or in a region where the tire comes in contact with a rim during tire traveling, and reduces rolling resistance.
The pneumatic tire includes: a sidewall internal conductive layer connected to a clinch and disposed between a carcass and a sidewall; a tread internal conductive layer connected to the sidewall internal conductive layer and disposed between a breaker and a tread; and a conducting part connected to the tread internal conductive layer and disposed to be exposed on the surface of the tread. A rubber composition used for the tread internal conductive layer contains, as a filler, 10 to 50 pts.mass of silica and 9.5 to 25 pts.mass of carbon black having DBP oil absorption of 120 cm3/100 g or higher and a N2SA of 150 m2/g or larger and/or a volatile content of 1.0 mass% or smaller with respect to 100 pts.mass of a rubber component.
HATTORI TAKAYUKI
| JP2008308083A | 2008-12-25 | |||
| JP2007008269A | 2007-01-18 | |||
| JP2006124504A | 2006-05-18 |
Yousuke Fujimori
Seiji Tani