| 摘要 |
<p>A radial tire for heavy load comprising a bead core, a carcass ply layer, an inner liner A-layer, a belt and a tread, which simultaneously satisfies the relationships of the formula: P/G=1.00 (I) (wherein P/G is the oxygen permeation resisting performance of the inner liner A-layer, P is the value of [oxygen permeation rate of the inner liner A-layer at 20°C/65% RH (cm<SUP>3</SUP> cm/cm<SUP>2</SUP> sec cmHg)]x10<SUP>10</SUP>, and G is the product gauge (mm) of the inner liner A-layer), and the formula: D=6.0 (II) (wherein D is the distance (mm) from the tire-radius-direction outside interface of the inner liner A-layer to the coating rubber interface of a crossing belt layer). The radial tire for heavy load is improved in low fuel consumption and simultaneously attains a tire durability and weight saving.</p> |
