METHOD FOR IMPROVING THE AGING RESISTANCE OF THE SIDEWALLS OF RETREADED TIRES

摘要

A method for improving the aging resistance of the sidewalls of retreaded tires is provided. The method involves the steps of treating the surface of the sidewalls of the worn tire to be retreaded with an aqueous solution or dispersion containing a film-forming polymer and an antiozonant, retreading the treated tire and then curing the treated retreaded tire thereby causing the antioxidant to migrate into the inner portion of the sidewall. The method of the invention is particularly useful for improving the aging resistance of the sidewalls of worn truck and bus tires which are conventionally retreaded several times.