TIRE USING APEX RUBBER COMPOUND CONTAINING IN-SITU FORMED RESIN

摘要

PROBLEM TO BE SOLVED: To obtain a substitute for a resorcinol-methylene donor system in order to prevent the harm of volatilization of resorcinol in tire vulcanization at the latter step in a resorcinol-methylene donor system conventionally adopted in an apex compound in the production of tire. SOLUTION: This pneumatic tire has an apex in the region of the carcass ply turnup. The apex region of the tire is composed of a rubber containing 2.2-2.5 phr of the reaction product of a partially polymerized cashew nutshell oil resin and a methylene donor.