Rubber composition comprising a monohydroxysilane polysulfide coupling agent

Abstract

An elastomeric composition is based on at least a diene elastomer, an inorganic filler as reinforcing filler and a monohydroxysilane polysulfide as coupling agent of formula (I): (HO)(R1)2Si—CH2—(R2)CH—Z—Sx—Z—HC(R2)—CH2—Si(R1)2(OH) (I), in which: each R1 represents a monovalent hydrocarbon group having from 1 to 18 carbon atoms and can be the same or different from one another; each R2 represents a monovalent hydrocarbon group having from 1 to 4 carbon atoms and can be the same or different from one another; each Z represents a divalent hydrocarbon bonding group comprising from 1 to 16 carbon atoms can be the same or different from one another; and x is an integral or fractional number greater than or equal to 2.

Dependencies are inferred from the claim text.