The present invention relates to a tire for vehicles bearing heavy loads. The tread of said tire contains a composition made of at least one elastomer matrix containing a first diene elastomer and a thermoplastic styrene elastomer. Said thermoplastic styrene elastomer is at most 50 wt% of the elastomer matrix and contains at least one rigid styrene segment and at least one flexible diene segment. The at least one flexible diene segment contains at least 20 wt% combined diene units. The combined diene units can be totally or partially hydrogenated. Said first diene elastomer is at least 50 wt% of the elastomer matrix and is selected from among the group made up of polybutadienes, butadiene copolymers, and the mixtures thereof. Said composition is also made of: at least one reinforcing filler that contains a carbon black, which is more than 50 wt% of the reinforcing filler; and a cross-linking system. Such a tire has enhanced resistance to crack propagation.
PNEUMATIQUE POUR VEHICULES DESTINES A PORTER DE LOURDES CHARGES
2017-04-28
Patent
Elektronische Ressource
Französisch
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
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