Process for producing tyres, tyres thus obtained and elastomeric compositions used therein.

Process for producing tyres, in which a composition is crosslinked, this composition comprising: (a) an elastomeric polymer containing carboxylic groups; and (b) an epoxidized elastomeric polymer containing from 0.1 mol% to 20 mol% of epoxide groups relative to the total number of moles of monomers present in the polymer. After heating, the elastomeric material reaches a high degree of crosslinking without addition of conventional crosslinking agents, with crosslinking times contained within limits that are acceptable for industrial use. These compositions are particularly suitable for producing tread bands.