| 摘要 |
PROBLEM TO BE SOLVED: To heighten an antistatic effect and shelf stability by applying a rubber layer which has a specified specific resistance value and a specified thickness to a designated place of a tire tread rubber having a specified specific resistivity value to form a current-carrying path. SOLUTION: A rubber layer 100μm-1mm thick having a specific resistivity of 10<6>Ω.cm or more is formed as a layer continuous in the circumferential direction in contact extending from the outer surface of a tire tread rubber 1 having a specific resistivity of 10<8>Ω.cm or more to at least a part of a member of the tire tread rubber 1 adjacent to the tread. 'A part' herein means a part seen from the tire cross direction, and it is formed as a continuous layer in the circumferential direction. It is desirable from viewpoint of durability that diene rubber used in a rubber composite for a rubber layer with a specific resistivity of 10<6>Ω.cm or less contains at least one kind of styrene-butadiene rubber(SBR), butadiene rubber(BR), and natural rubber(NR).
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