| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve rolling resistance and low-temperature endurance in a pneumatic tire equipped with an inner liner. <P>SOLUTION: The pneumatic tire includes an inner liner formed on the inside of the tire in a carcass ply stretched between a pair of beads. The inner liner includes a polymer laminate comprising: (A) a first layer of 0.05-0.6 mm thick comprising a styrene-isobutylene-styrene triblock copolymer; (B) and a second layer including either one of the styrene-isoprene-styrene triblock copolymer and a styrene-isobutylene diblock copolymer, and having the thickness of 0.01-0.3 mm. The second layer is arranged in contact with a rubber layer of the carcass ply. In the inner liner, the thickness Ge at a shoulder position Pe is thicker than the thickness Gc at a crown center position Pc. <P>COPYRIGHT: (C)2012,JPO&INPIT |
