RUBBER MIXTURE Russian patent published in 2013 - IPC C08L7/00 C08L9/00 C08K3/04 C08K3/06 C08K3/36 

FIELD: chemistry.

SUBSTANCE: invention relates to a rubber mixture based on a combination of natural and synthetic cis-butadiene rubber, containing silica filler and can be used in the tyre industry for non-studded winter tyre treads. The rubber mixture contains the following, pts.wt: natural rubber SVR-70-80, cis-butadiene rubber - 20-30, sulphur - 1-2, vulcanising group - 8-9, active technical carbon - 5-10, silica filler with specific surface area of 165 m²/g - 30-50, stabiliser based on microcrystalline wax - 1-3, anti-ageing agents - 2-4, process additive - 1-3, softeners - 18-20, binding agent - bis-[3-(triethoxy-silylpropyl]-7-9.

EFFECT: invention increases adhesion of non-studded tyres to an ice-covered and snow-covered surface in a wide temperature range and reduces hysteresis losses.

6 tbl