Patent ID: 6894122
Filing Date: 2005-05-17
Classification: C08C,C08L

Abstract:
1. A tire having at least one component comprised of a rubber composition which comprises, based on parts by weight per 100 parts by weight of rubber (phr): (A) 100 phr of elastomers comprised of (B) about 25 to about 95 phr reinforcing filler selected from carbon black, precipitated silica and silica-containing carbon black having domains of silica on its surface, wherein said precipitated silica and silica domains on said carbon black contain hydroxyl groups on their surfaces; wherein said reinforcing filler is comprised of (C) at least one silica coupling agent having a moiety reactive with hydroxyl on the surface of the said precipitated silica and on the surface of said silica domains on the surface of said silica-containing carbon black, and an additional moiety interactive with the said elastomer(s), wherein said coupling agent is bis(3-triethoxysilylpropyl) polysulfide having an average of from 2 to 2.6 connecting sulfur atoms in its polysulfidic bridge.