A rubber composition

Abstract

A rubber composition, which allows a sufficient scorch time while maintaining or improving the curing time and the breaking energy performance, is based on at least an elastomer matrix, a reinforcing filler, and a crosslinking system. The crosslinking system comprises a vulcanizing agent. The vulcanizing agent comprises more than 0.0 phr and less than 10 phr of a sulfur donor comprising N,N′-Caprolactam disulfide, and the vulcanizing agent comprises neither a soluble sulfur nor an insoluble sulfur, or the vulcanizing agent further comprises less than 0.4 phr of sulfur selected from a soluble sulfur, an insoluble sulfur and a combination thereof.

Dependencies are inferred from the claim text.