TYRE FOR A VEHICLE CARRYING HEAVY LOADS

The invention relates to a tyre intended to equip a vehicle carrying heavy loads which comprises a tread, the portion of which intended to be in contact with the ground being driven on consists totally or partly of a rubber composition, which rubber composition comprises more than 50 phr of a highly...

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Bibliographic Details
Main Authors FLEURY, Etienne, CLADIERE, Julien
Format Patent
LanguageEnglish
French
Published 20.06.2024
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Summary:The invention relates to a tyre intended to equip a vehicle carrying heavy loads which comprises a tread, the portion of which intended to be in contact with the ground being driven on consists totally or partly of a rubber composition, which rubber composition comprises more than 50 phr of a highly saturated diene elastomer, which is a random copolymer of ethylene and 1,3-butadiene containing between 55 mol% and 65 mol% of ethylene units, and between 30 phr and 55 phr of a reinforcing filler containing a carbon black in a weight content of greater than 90% of the weight of the reinforcing filler and less than or equal to 100% of the weight of the reinforcing filler. A tyre according to the invention has a good balance between wet grip performance, wear resistance, and rolling resistance. L'invention concerne un pneumatique destiné à équiper un véhicule portant de lourdes charges qui comporte une bande de roulement dont la portion destinée à être au contact avec le sol de roulage est constituée tout ou partie d'une composition de caoutchouc, laquelle composition de caoutchouc comprend plus de 50 pce d'un élastomère diénique fortement saturé qui est un copolymère statistique d'éthylène et de 1,3-butadiène qui contient entre 55% et 65% en mole d'unités éthylène, entre 30 pce et 55 pce d'une charge renforçante qui contient un noir de carbone à un taux massique supérieur à 90% de la masse de la charge renforçante et inférieur ou égal à 100% de la masse de la charge renforçante. Un pneumatique selon l'invention présente un bon compromis entre la performance d'adhérence sur sol mouillé, de la résistance à l'usure et de la résistance au roulement.
Bibliography:Application Number: WO2023EP84255