| 摘要 |
<p>Provided are: a rubber composition for sidewalls that is capable of providing a highly cut-resistant pneumatic tire in which, even after a sidewall part is cut and damaged, the expansion of said damage, which progresses toward the inner surface of the tire, is prevented advantageously; and a pneumatic tire comprising highly cut-resistant sidewall parts. This rubber composition for pneumatic-tire sidewalls comprises hollow particles, the rubber composition for pneumatic-tire sidewalls being characterized in that: the proportion of the hollow particles in the rubber composition is from 3 vol% to 30 vol% inclusive; the modal particle diameter of the hollow particles is from 1 µm to 100 µm inclusive; and the particle size distribution index of the hollow particles is below or equal to 1.70. Also disclosed is a pneumatic tire in which said rubber composition is employed for the sidewall parts thereof.</p> |
