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.
TIRE FOR VEHICLE BEARING HEAVY LOADS
PNEUMATIQUE POUR VEHICULES DESTINES A PORTER DE LOURDES CHARGES
2015-06-25
Patent
Electronic Resource
English