| abstract |
utility vehicle tires with a tread The present invention relates to a utility vehicle tire with a tread, in which at least the part of the tread in contact with the road is made up of a mixture of vulcanized rubbers with sulfur. for a high-level solution of the conflicts of objectives between abrasion, rolling resistance and wet grip, it consists at least in the parts that come into contact with the road by a mixture of vulcanized rubbers with sulfur, which comprises 90 to 50 parts in one hundred (parts by weight referred to 100 parts by weight of all rubbers present in the mixture) of natural rubber, 10 to 50 parts by weight of at least one polybutadiene with a glass transition temperature tg of -110 to -65ºc and 5 to 50 parts per hundred of at least one aliphatic and / or aromatic hydrocarbon resin, with a softening point (rim and sphere test according to astm e 28) from 0 to 150ºc and an average molecular weight min 2000 g / mol, as well as with a polydispersity d = mw / mn from 1 to 5. |