Patent ID: 8492475
Filing Date: 2013-07-23
Classification: B60C,C08K,Y10T

Abstract:
1. A tire comprising a rubber composition based on at least one isoprene elastomer, an inorganic filler as reinforcing filler and a polyfunctional organosiloxane coupling agent which provides the bonding between the said reinforcing inorganic filler and the isoprene elastomer, wherein the organosiloxane corresponds to the formula (VII): in which: Z is a divalent bonding group connecting the azodicarbonyl functional group to a silicon atom of the organosiloxane; A represents (i) a monovalent radical which can be unsubstituted or substituted hydrocarbon or a monovalent residue selected from the group consisting of —OR′, —NR′, and —SR′, wherein R′ is a monovalent hydrocarbon radical, or (ii) the group of formula Z′ in which Z′, which is identical to or different from Z, and is a divalent bonding group which makes it possible to connect the azodicarbonyl functional group to a silicon atom (identical to or different from the Si atom connected to Z) of the organosiloxane; A, Z and if applicable Z′, independently, may comprise one or more heteroatoms; a′ represents an integer chosen from 0, 1 and 2; b′ represents an integer chosen from 0, 1 and 2; the sum a′+b′ is equal to 1 or 2 with the condition according to which, when b′=0, then at least one of the G m lies within the range from 1 to 2; n=o=p=0 (zero) and q=1; the G the G the G