FIELD: chemistry.
SUBSTANCE: invention relates to tires with tread. Disclosed is a tire, the tread of which contains a rubber composition based on: elastomer matrix containing from 25 to 95 weight parts per 100 weight parts of an elastomer (phr) of a copolymer based on butadiene and styrene, having a glass transition temperature of less than −70 °C, and from 5 to 75 phr of polybutadiene, wherein the elastomeric matrix optionally further contains less than 15 phr of the isoprene elastomer; at least one reinforcing filler containing more than 50% by weight of reinforcing inorganic filler, wherein content of reinforcing inorganic filler in composition is in range from 80 to 200 phr; from 25 to 100 phr of at least one plasticizing resin, having a glass transition temperature of more than 20 °C, and a vulcanisation system containing molecular sulphur and/or at least one sulphur donor agent, where the sulphur content is between 0.5 and 12 phr.
EFFECT: disclosed tire has improved combination of such properties as rolling resistance, grip on snow-covered ground and wear resistance of tires intended for movement on snow-covered ground.
14 cl, 2 tbl
Authors
Dates
2024-05-07—Published
2020-07-06—Filed