| 摘要 |
The invention concerns a tyre belt comprising at least one elastomer composition based on at least one isoprene elastomer, a reinforcing inorganic filler and a polysulphide silane coupler, characterized in that said polysulphide silane coupler is of formula (I), wherein: the symbols R1 and R2, identical or different, represent each a monovalent hydrocarbon group selected among linear or branched alkyls having 1 to 6 carbon atoms and the phenyl radical; the symbols R3, identical or different, represent each hydrogen or a monovalent hydrocarbon group selected among linear or branched alkyls having 1 to 4 carbon atoms and linear or branched alkoxyalkyls having 2 to 8 carbon atoms; the symbols Z, identical or different, are divalent bond groups comprising 1 to 18 carbon atoms; x is a whole or fractional number not less than 2. |
