STUD TIRE Russian patent published in 2018 - IPC B60C11/16 B60C1/00 C08K3/04 C08K3/36 C08L21/00 

FIELD: automotive industry.

SUBSTANCE: invention relates to automotive industry. Studded tire of the invention contains stud studs (studs of anti-skid) (20), they are installed in the surface of section (1) of the tire tread contacting the road pavement. Tread section (1) is formed from a rubber composition, containing diene rubber, which contains at least one rubber which is selected from natural rubber, butadienestyrene rubber and butadiene rubber, from 5 to 50 parts by weight of carbon black and from 5 to 70 parts by weight of silica per 100 parts by weight of diene rubber. Glass transition temperature of the diene rubber does not exceed -60 ° C. Specific area for nitrogen adsorption of carbon black is from 50 to 120 m²/ g. Specific area of ​​the CTAB of silica is from 80 to 190 m²/ g. Hardness of the rubber for the rubber composition does not exceed 60. Product (S × A) of the voltage S (MPa) at the time of 400% elongation and the area of ​​the bottom surface A (mm²) located below the flange portion (23) of the stud stud (20) is not less than 400 and not more than 850.

EFFECT: technical result is an increase in the reliability of fastening of a stud in the tire, as well as improvement of the tread characteristics in snow, ice and wet coating.

3 cl, 5 dwg, 3 tbl