| 摘要 |
A tire belt comprising at least one elastomeric composition based on at least one isoprene elastomer, a reinforcing inorganic filler and a silane polysulfide, characterized in that said silane polysulfide satisfies the formula (I): in which: the symbols R<1 >and R<2>, which may be identical or different, each represent a monovalent hydrocarbon group selected from among alkyls, whether straight-chain or branched, having from 1 to 6 carbon atoms, and the phenyl radical; the symbols R<3>, which may be identical or different, each represent hydrogen or a monovalent hydrocarbon group selected from among alkyls, whether straight-chain or branched, having from 1 to 4 carbon atoms, and alkoxyalkyls, whether straight-chain or branched, having from 2 to 8 carbon atoms; the symbols Z, which may be identical or different, are divalent bond groups comprising from 1 to 18 carbon atoms; and x is equal to or greater than about 2. |
