Compagnie Generale Des Etablissements Michelin

Michelin Recherche Et Technique S.a.

Lionel Belin

Jean-Marc Marechal

Nathalie Salgues

Sébastien Noel

Auriane Frisch

Eve-Anne Filiol

Emmanuel Landreau

Fabien Bonnette

Odile Tadjoa

Marine Balorin

Claire Dalliere

Eric Jordery

Philippe Laubry

A rubber composition is based on at least an elastomeric matrix comprising at most 70 parts by weight, per hundred parts by weight of elastomer, phr, of a polyisoprene and at least 30 phr of a butadiene/styrene copolymer, the butadiene/styrene copolymer exhibiting a content of styrene units of between 20% and 40% by weight, with respect to the total weight of the butadiene/styrene copolymer, a content of trans-1,4-butadiene unit of greater than 65% by weight, with respect to the total weight of the butadiene units, a content of vinyl unit of less than 8% by weight, with respect to the total weight of the butadiene units, and a glass transition temperature of between &#x2212;60&#xb0; C. and &#x2212;35&#xb0; C.; from 35 to 75 phr of a carbon black exhibiting a BET specific surface of between 90 and 100 m/g and a COAN absorption index of between 90 and 100 ml/100 g; and a crosslinking system.

Rubber composition having improved properties in the raw state and in the cooked state

A cord rubberized in situ (C) comprising: an internal layer of the cord (CT), an external layer of the cord (CT), a rubber composition () positioned between the internal layer of the cord and the external layer of the cord. The rubber composition () comprises a compound of formula (I): in which X and Y represent, independently of each other, an alkali metal or alkaline earth metal cation.

Cable rubberized in situ comprising a rubberizing composition comprising a corrosion inhibitor

A cord rubberized in situ (C). Internal layer of the cord (CT1) comprises N1 internal thread(s). External layer of the cord (CT3) comprises N3 external threads wound helically around the internal layer of the cord. Rubber composition (20) is positioned between the internal layer of the cord and the external layer of the cord, and comprises a compound of formula (I) or a salt of this compound: in which: each R1, R2 and R3 group represents, independently of one another, an alkylene, arylene, arylalkylene, alkylarylene or cycloalkylene group, each Xand Xgroup represents, independently of each other, &#x2014;COOH, &#x2014;CO&#x2014;NH&#x2014;OH, &#x2014;SOOH, &#x2014;PO(OR)(R') or &#x2014;PO(OR)(OR&#x2032;) with R and R&#x2032; representing, independently of each other, hydrogen or an alkyl group, and Xcomprises at least one &#x2014;COOH, &#x2014;CO&#x2014;NH&#x2014;OH, &#x2014;SOOH, &#x2014;PO(OR)(R&#x2032;) or &#x2014;PO(OR)(OR&#x2032;) group with R and R&#x2032; representing, independently of each other, hydrogen or an alkyl group.

Cable gummed in situ and containing a gumming composition that contains a corrosion inhibitor

A semi-finished product or tire comprises a metal reinforcing element embedded in a rubber composition comprising a compound of formula (I): where X and Y represent, independently of one another, an alkali metal or alkaline earth metal cation.

Semi-finished product and tire comprising a composition containing a corrosion inhibitor

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Clermont-Ferrand, France

Lionel Belin