TYRE FOR VEHICLE CARRYING HEAVY LOADS COMPRISING A NOVEL TREAD

摘要

The invention concerns a tyre intended to equip a vehicle carrying heavy loads, said tyre comprising a tread having at least one rubber composition made from at least: - an elastomer matrix comprising, for the most part, a styrene-butadiene copolymer having a glass transition temperature Tg strictly greater than -65 °C and less than or equal to -30 °C, - a reinforcing filler comprising, for the most part, silica, - a chemical cross-linking system, - a coupling agent, and - a plasticising system comprising between 0 and 15 phr, preferably between 0 and 9 phr, of at least one plasticising resin having a glass transition temperature Tg greater than or equal to 20 °C, the total amount of the plasticising system in the composition being between 0 and 17 phr.