Patent ID: 6520229
Filing Date: 2003-02-18
Classification: B60C,Y02T,Y10S

Abstract:
A pneumatic tire comprising a tread and a conductive thin film provided on the surface of said tread continuously in the circumferential direction of the tire,wherein said conductive thin film is made from a rubber composition comprising a rubber and at least 10 parts by weight of carbon black per 100 parts by weight of said rubber, said carbon black has an average particle size of at most 40 nm and a DBP oil absorption of at least 150 ml/100 g, and said conductive thin film has a thickness of 0.1 to 0.5 mm and a volume resistivity of not more than 105 &OHgr;Â·cm, and said conductive thin film is provided on at least both edge portions of said tread, and the width in the direction from one edge toward the center of said tread of said conductive thin film located on one side of the tread is from 10 to 50% of the full width of said tread; and said tread is made from a rubber composition comprising a diene rubber and 40 to 100 parts by weight of silica having a BET specific surface area of 100 to 300 m2/g per 100 parts by weight of said diene rubber, the content of said silica being at least 50% by weight based on the whole filler incorporated in said composition.