Patent ID: 6140407
Filing Date: 2000-10-31
Classification: B60C,C08K

Abstract:
A pneumatic tire comprising; a tread made of a rubber composition having a high electrical resistance, a member adjacent to the tread and made of a rubber composition having a low electrical resistance, and a water-based electrically conductive coating extended from an outer surface of the tread to an outer surface of the member, said water-based electrically conductive coating comprises a rubber ingredient, carbon black and a surface active agent, the carbon black having a nitrogen absorption specific surface area (N.sub.2 SA) of 70 m.sup.2 /g-180 m.sup.2 /g and a dibutyl phthalate (DBP) absorption of 70 ml/100 g-180 ml/100 g and being at least one selected from the group consisting of N100S, N200S, N300S and N600S in accordance with the ASTM classification.