Compagnie Générale Des Etablissements Michelin-Michelin & Cie

Michelin & Cie

Michelin Recherche Et Technique S.a.

Compagnie Generale Des Establissements Michelin - Michelin & Cie

Gerard Labauze

Didier Vasseur

Jean-Luc Cabioch

Jean-Noel Gorce

The present invention relates to a cross-linkable or cross-linked rubber composition which is usable to constitute a tire tread having improved wear resistance, to such a tread and to a tire incorporating this tread. A rubber composition according to the invention comprises a diene elastomer of a number-average molecular weight Mn of less than 2000 g/mol which has a glass transition temperature Tg of greater than &#x2212;25&#xb0; C., and it is such that said elastomer comprises one or more units resulting from the polymerisation of a vinylaromatic monomer, such as styrene. The invention applies in particular to tires of passenger-vehicle type.

Rubber composition for tire treads

The invention relates to a cross-linked rubber composition for a tire tread having a Shore A hardness greater than 45 and less than 57, measured in accordance with Standard ASTM D 2240, wherein the composition comprises

Rubber composition for a tire tread

A rubber composition of improved hysteretic and physical properties which make it suitable for forming a tire tread, notably a tire tread of reduced rolling resistance, the rubber composition including carbon black having silica fixed to its surface as the majority portion of reinforcing filler and at least one functionalized diene polymer having at the end of its chain a silanol function or a polysiloxane block including a silanol end or a diene polymer modified along its chain by silanol functions.

Rubber composition based on carbon black having silica fixed to its

A rubber composition which has a reduced hysteresis making it particularly suitable for use as a tread of a tire having reduced rolling resistance, including silica as predominant reinforcing filler and at least one diene polymer bearing, as a chain end, a silanol functional group or a polysiloxane block which has a silanol end.

Rubber composition based on silica and on functionalized diene polymer

A rubber composition having improved hysteretic and physical properties which make it particularly suitable for forming a tire tread of reduced rolling resistance, comprising carbon black having silica fixed to its surface as the majority portion of reinforcing filler and at least one diene polymer functionalized by means of a functionalizing agent of general formula:

A sulfur-vulcanizable rubber composition which in vulcanized state is of roved hysteresis, comprising silica as reinforcing filler and a polymer which is coupled and/or starred by means of an agent having the general formula:

Silica-filled elastomer compositions which can be used for tires

The present invention relates to a rubber composition reinforced by carbon lack and possibly silica, including at least one diene polymer functionalized or modified by an alkoxysilane derivative and at least one organosilane compound having a primary or secondary amine function or an imine function, which can be used for the manufacture of tires having, in particular, improved hysteresis properties.

Silylated rubber diene polymer containing organosilane

The present invention relates to a sulfur-vulcanizable rubber composition mprising, by way of reinforcing filler, carbon black or a mixture of carbon black and silica, at least one functionalized diene polymer bearing at the chain end a silanol function or a polysiloxane block having a silanol end, or modified along the chain by silanol functions and at least one organosilane compound comprising an amine or imine function, which can be used for the manufacture of tires having, in particular, improved hysteresis properties.

Rubber composition having a base of a diene polymer having a silanol

A sulfur-vulcanizable rubber composition of improved hysteresis, comprising ilica as reinforcing filler as well as a diene polymer functionalized with a functionalizing agent having the general formula (Y).sub.m --R.sup. --Si(OR.sup.2).sub.3-n --R.sup.3 n and suitable to be used for the manufacture of tires of reduced resistance to rolling. The functionalized diene polymers are prepared by addition to the living diene polymer under suitable mixing conditions of an amount of functionalizing agent such that the molar ratio of functionalizing agent to the number of active sites is equal to or greater than 1.

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Clermont-Ferrand, France

Gerard Labauze