Compagnie Generale Des Etablissements Michelin

Michelin Recherche Et Technique S.a.

Marc Sevignon

Cecile Belin

Benoit De Gaudemaris

Damien Thomasson

Aurélie Joseph

Cécile Belin

The invention relates to a rubber composition based on at least one diene elastomer, a reinforcing filler including at least carbon black, having a specific surface area CTAB greater than or equal to 130 m/g, a plasticizing hydrocarbon resin, the vitreous transition temperature of which, Tg, is greater than 20&#xb0; C., and the softening point of which is less than 170&#xb0; C., and a cross linking system, the dispersion of the filler in the elastomeric matrix having a Z score greater than or equal to 70.

Elastomer composition having a very good dispersion of the charge in the elastomer matrix

The invention relates to a rubber composition based on at least one diene elastomer, a reinforcing filler including at least carbon black, having a specific surface area CTAB greater than or equal to 130 m/g, a plasticizing hydrocarbon resin, the vitreous transition temperature of which, Tg, is greater than 20&#xb0; C. and the softening point of which is less than 170&#xb0; C., and a cross linking system, the dispersion of the filler in the elastomeric matrix having a Z score greater than or equal to 70.

The invention relates to a rubber composition based on at least one diene elastomer, a reinforcing filler comprising at least carbon black having a CTAB specific surface of greater than or equal to 130 m/g, a plasticizing oil and also a crosslinking system, the dispersion of the filler in the elastomeric matrix having a Z score of greater than or equal to 70.

Elastomeric composition having a very good dispersion of the filler in the elastomeric matrix

The invention relates to a rubber composition based on at least one diene elastomer, a reinforcing filler comprising at least carbon black and an inorganic filler with an inorganic filler content of less than or equal to 50 parts by weight per hundred parts of elastomer, characterized in that the composition is obtained from a first masterbatch comprising at least one first diene elastomer and carbon black, and having a dispersion of the carbon black in the elastomeric matrix that has a Z value of greater than or equal to 90, added to which is the inorganic filler and at least one second elastomer, identical to or different from the first elastomer, and also to the process for preparing such a composition.

Elastomeric composition exhibiting good dispersion of the filler in the elastomeric matrix

A rubber composition based on at least one diene elastomer, a filler that contains carbon black and an inorganic filler, and a crosslinking system, wherein the inorganic filler content is greater than or equal to 5 parts by weight per hundred parts by weight of elastomer, phr, and represents at most 50% as a weight fraction of the whole of the total filler of the composition, and wherein the carbon black includes at least one acetylene-derived carbon black, with a content of greater than 3 phr, the amount of acetylene-derived carbon black representing more than 50% of the carbon black present in the composition as a weight fraction, and wherein the composition contains a plasticizing oil or a plasticizing resin with a total content of plasticizing oil and plasticizing resin of less than 30 phr.

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Clermont-Ferrand, France

Marc Sevignon