Abstract: A tire for vehicles includes a tread having a vulcanized polymeric base including at least one reinforcing filler dispersed in the polymeric base; an amount of extractable residue of at least one vulcanization accelerator, containing at least one carbon atom bound to at least two sulfur atoms, from 0.5% to 1.8% by weight based on a total weight of the tread; an amount of at least one activator, expressed as equivalents of zinc oxide, not higher than 2% by weight based on the total weight of the tread; and an amount of combined sulfur lower than 2.5% by weight based on the total weight of the tread. A tread for vehicle tires, a vulcanizable rubber composition for the manufacture of such a tread, and a vulcanizing system, all related to the tire for vehicles, are also disclosed.

Abstract: An elastomeric composition includes at least one diene elastomeric polymer; at least one reinforcing filler; from 0.05 phr to 10 phr of zinc oxide; from 0.1 phr to 20 phr of at least one fatty acid amide; and from 0.1 phr to 15 phr of at least one zinc salt of a carboxylic acid of formula R—COOH. R is selected from linear or branched C1-C24 alkyl groups, linear or branched C2-C24 alkenyl groups, C5-C24 cycloalkyl groups, C6-C24 aryl groups, C7-C24 alkylaryl or arylalkyl groups. A tyre for a vehicle wheel includes a carcass structure, belt structure, tread band, and pair of sidewalls. At least one tyre structural element includes a crosslinked elastomeric material obtained by crosslinking the elastomeric composition. The at least one structural element including the crosslinked elastomeric material may be the tread band. A related tyre tread band and crosslinked elastomeric manufactured product are also disclosed.

Abstract: A process for producing and storing a semi-finished product includes preparing an elastomeric composition, forming the composition to obtain a semi-finished product in strip form, and winding up the semi-finished product on a storage reel. At least one polyalkenamer is added during preparing the composition. A tyre for a vehicle wheel includes a belt structure, a tread, and a reinforcing layer disposed between the belt structure and tread. The reinforcing layer includes reinforcing cords coated and held together with a crosslinked elastomeric composition including at least one polyalkenamer. A process for producing the tyre includes manufacturing an unvulcanized tyre including at least one element made of crosslinkable elastomeric material, moulding the unvulcanized tyre in a moulding cavity defined in a vulcanizing mould, and crosslinking the elastomeric material by heating the tyre to a given temperature for a given time. The at least one element includes at least one polyalkenamer.

Abstract: A tire for vehicles includes a tread having a vulcanized polymeric base including at least one reinforcing filler dispersed in the polymeric base; an amount of extractable residue of at least one vulcanization accelerator, containing at least one carbon atom bound to at least two sulfur atoms, from 0.5% to 1.8% by weight based on a total weight of the tread; an amount of at least one activator, expressed as equivalents of zinc oxide, not higher than 2% by weight based on the total weight of the tread; and an amount of combined sulfur lower than 2.5% by weight based on the total weight of the tread. A tread for vehicle tires, a vulcanizable rubber composition for the manufacture of such a tread, and a vulcanizing system, all related to the tire for vehicles, are also disclosed.