Compagnie Generale Des Etablissements Michelin

Sylvain Mayer

Nicolas Seeboth

Anne-Frédérique Salit Salit

Fabien Hellot

Pablo Barreiro

Benigno A Janeiro

José Manuel Antelo Miguez

Florian Dulong

The invention relates to an alkoxysilane polysulfide, of formula (I):(RO)(R)Si&#x2014;CH&#x2014;(R)CH&#x2014;Z&#x2014;S&#x2014;Z&#x2014;HC(R)&#x2014;CH&#x2014;Si(R)(OR)&#x2003;&#x2003;(I),in which: R, which are identical or different, each represent a monovalent hydrocarbon group having from 1 to 18 carbon atoms; R, which are identical or different, each represent a monovalent hydrocarbon group having from 1 to 4 carbon atoms; R, which are identical or different, each represent a monovalent hydrocarbon group having from 1 to 12 carbon atoms, preferably from 1 to 6 carbon atoms; Z, which are identical or different, each represent a divalent hydrocarbon bonding group comprising from 1 to 16 carbon atoms; x is an integral or fractional number greater than or equal to 2; and n is an integer equal to 0, 1 or 2.

Alkoxysilane polysulphide

An elastomeric composition is based on at least a diene elastomer, an inorganic filler as reinforcing filler and a monohydroxysilane polysulfide as coupling agent of formula (I): (HO)(R)Si&#x2014;CH&#x2014;(R)CH&#x2014;Z&#x2014;S&#x2014;Z&#x2014;HC(R)&#x2014;CH&#x2014;Si(R)(OH) (I), in which: each Rrepresents a monovalent hydrocarbon group having from 1 to 18 carbon atoms and can be the same or different from one another; each Rrepresents a monovalent hydrocarbon group having from 1 to 4 carbon atoms and can be the same or different from one another; each Z represents a divalent hydrocarbon bonding group comprising from 1 to 16 carbon atoms can be the same or different from one another; and x is an integral or fractional number greater than or equal to 2.

Rubber composition comprising a monohydroxysilane polysulfide coupling agent

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Clermont-Ferrand, France

Sylvain Mayer