TYRE FOR VEHICLE WHEELS Russian patent published in 2018 - IPC C08L9/06 B60C1/00 C08K5/372 C08L21/00 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to tires for vehicle wheels, in particular, tires with high and ultra-high performance characteristics along with a process for the manufacturing thereof. Tyre for vehicle wheels wherein at least one component of said tyre comprises a vulcanised elastomeric composition obtained by vulcanising a vulcanisable elastomeric composition comprising at least one elastomeric polymer P₁, at least one reinforcement filler a) at least one vulcanizing agent b) and at least one co-vulcanising composition c) obtained by mixing c1) at least one elastomeric polymer P₂, c2) at least one zinc complex obtained by interaction between c3) from 20 to 80 phr with respect to 100 phr P₂ of at least one zinc compound, and c4) from 20 to 80 phr with respect to 100 phr P₂ of at least one lower (di)thiodicarboxylic acid of formula (I) HOOC-CHR-CHR₁-S_(n)-CHR₂-CHR₃-COOH (I), wherein n represents an integer number selected from 1 and 2; R, R₁, R₂, R₃, equal or different from each other, are selected from H, CH₃ and C₂H₅. These tires contain one or more components with high rigidity and exhibit particularly high performance characteristics in "behavior" on the roads.

EFFECT: due to the use of certain stabilized co-vulcanizing compositions in mixtures of such components, it became possible to increase the rigidity of these components and simultaneous prevention of the release of irritating by-products during manufacture, in particular during the calendering phase of mixtures intended to form rubber cords.

29 cl, 1 dwg, 8 tbl