C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 13/02 (2006.01) B60C 1/00 (2006.01) B60C 9/00 (2006.01) B60C 9/18 (2006.01) C08K 3/00 (2006.01) C08K 3/34 (2006.01) C08K 5/548 (2006.01) C08L 21/00 (2006.01)
Patent
CA 2501390
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 R?1¿ and R?2¿, 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 R?3¿, 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.
Ceinture de pneumatique comportant au moins une composition élastomérique à base d'au moins un élastomère isoprénique, une charge inorganique renforçante et un silane-polysulfure, caractérisée en ce que ledit silane~-polysulfure répond à la formule (I) dans laquelle: - les symboles R1 et R2, identiques ou différents, représentent chacun un groupe hydrocarboné monovalent choisi parmi les alkyles, linéaires ou ramifiés, ayant de 1 a 6 atomes de carbone et le radical phényle ; - les symboles R3, identiques ou différents, représentent chacun l'hydrogène ou un groupe hydrocarboné monovalent choisi parmi les alkyles, linéaires ou ramifiés, ayant de 1 a 4 atomes de carbone et les alkoxyalkyles, linéaires ou ramifiés, ayant de 2 a 8 atomes de carbone ; - les symboles Z, identiques ou différents, sont des groupes de liaison divalents comportant de 1 a 18 atomes de carbone ; - x est un nombre entier ou fractionnaire égal ou supérieur à 2.
Michelin Recherche Et Technique S.a.
Robic
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