| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pneumatic tire having an inner liner for improving air permeation resistance, bending fatigue performance and crack resistance. <P>SOLUTION: The inner liner 9 of this pneumatic tire 1 is constituted of a polymer laminate body constituted of a first layer having a thickness of 0.05-0.6 mm constituted of a polymer composition including an organizing treatment viscosity mineral by 0.1-50 mass% to a polymer mixture of 100 pts.mass including SIBS of 99-60 mass% and a polyamide-based polymer of 1-40 mass% including polyamide in a molecular chain and having Shore D hardness of 70 or less and a second layer having a thickness of 0.01-0.3 mm including at least any of SIS and SIB. The second layer is arranged so as to contact with a rubber layer of a carcass ply 6, and the inner liner 9 is thinner in an average thickness of a buttress area Rs ranging over a corresponding position Lu of the belt layer end from a tire maximum width position Le than an average thickness of a bead area Rb ranging over a bead toe Lt from the tire maximum width position Le. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
