Patent ID: 9593226
Date: 2017-03-14
CPC Classifications: B60C,C08C,C08K,C08L,Y02T

Claim:
1. A rubber composition based on one or more functionalized diene elastomers and, as predominant filler, on one or more carbon blacks with a CTAB specific surface varying from 100 to 200 m 2 /g, the functionalized diene elastomer or elastomers being composed: a) of a diene elastomer functionalized, in the middle of the chain, by a tin functional group and corresponding to the following formula: where n and m are integers of greater than 0, such that n+m=2, b) of a content of less than 15% by weight, with respect to the total weight of the functionalized diene elastomer, of a non-tin-functional elastomer corresponding to the following formula: where: A is a diene elastomer, the A blocks being identical to one another, X is a tin-comprising group, the elastomer A exhibits a monomodal distribution of molecular weights before optional functionalization and a polydispersity index before optional functionalization of less than or equal to 1.3.