Elastomer compositions with improved properties
AssigneeCompagnie Generale Des Etablissements Michelin
InventorsETIENNE FLEURY, STEPHANE BADAIRE
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Abstract
The invention relates to an elastomer composition for heavy-duty tyres based on at least one elastomeric matrix, fillers including graphite and a reinforcing filler, and a vulcanization system, characterized in that: the elastomeric matrix comprises at least 50 phr of a diene elastomer chosen from the group consisting of isoprene elastomers, butadiene elastomers and mixtures of these diene elastomers, the reinforcing filler predominantly comprises a carbon black, the graphite has a crystallite size Lc in a range from 80 to 500 nm, more preferentially from 90 to 400 nm, more preferentially from 100 to 300 nm, the total filler content is less than or equal to 65 phr.
Claims15
-14. (canceled)
An elastomer composition for heavy-duty tires based on at least one elastomeric matrix, fillers including graphite and a reinforcing filler, and a vulcanization system,
- wherein the at least one elastomeric matrix comprises at least 50 phr of a diene elastomer selected from the group consisting of isoprene elastomers, butadiene elastomers and mixtures thereof,
- wherein the reinforcing filler predominantly comprises a carbon black,
- wherein the graphite has a crystallite size Lc in a range from 80 to 500 nm, and
- wherein a total filler content is less than or equal to 65 phr.
Dependencies are inferred from the claim text.