| 摘要 |
PROBLEM TO BE SOLVED: To reduce the charged quantity without raising any problems in manufacture and quality even when a cap layer of low conductivity in which a large volume of filling agent such as silica is blended is provided. SOLUTION: A pneumatic tire is provided with a double structure comprising a cap layer 1 in which a tread part is on a tire tread part side and a base layer 2 adjacent to its inner side. The cap layer 1 is made of the rubber composition of low conductivity whose volume resistivity exceeds 10<8>Ω.cm, and the base layer 2 is made of the rubber composition of high conductivity whose volume resistivity is <=10<8>Ω.cm, and a part 2a of the base layer is exposed on a tire tread part forming at least one strip in the circumferential direction of the tire.
|
