| abstract |
TIRE. The invention relates to a tire having a tread or tread comprising a rubber composition based on at least one dienic elastomer, a non-black, particularly inorganic reinforcing filler, a coupling agent that ensures bonding. between the diene elastomer and the filler, the composition of which further comprises a pro-photo-oxidizing agent and optionally carbon black at an amount of less than 5 pce (parts by weight to one hundred parts of elastomer). The pro-photo-oxidizing agent is especially a radical or cationic type photoinitiator (or photo-exciter), whether or not activated by the presence of a photosensitizer. Tires involving such a rolling face exhibit a considerable increase in grip on wet roads after photo-oxidation (UV-visible radiation exposure) of the rolling face. |