| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pneumatic tire, in which internal pressure drop of the tire and crack growth of an inner liner by repeated bending deformation accompanying tire traveling are alleviated, and whose rolling resistance is further reduced. <P>SOLUTION: The pneumatic tire 1 is provided with an inner liner 9 comprising a first layer located on the inner tire side and a second layer located to be in contact with a rubber layer of a carcass ply 6, the first layer being formed of a thermoplastic elastomer composition which comprises, as the main component, a styrene-isobutylene-styrene block copolymer, and the second layer being formed of a styrene-based thermoplastic elastomer composition, wherein: (a) the thermoplastic elastomer composition(s) of the first layer and/or the second layer contain 0.1-100 pts.mass of a tackifier per 100 pts.mass of the thermoplastic elastomer; or (b) the second layer contains 10-80 mass%, of the thermoplastic elastomer component, of a styrene-isobutylene-styrene block copolymer. <P>COPYRIGHT: (C)2012,JPO&INPIT |
