RUBBER COMPOSITION, METHOD FOR ITS PRODUCTION AND TIRE Russian patent published in 2018 - IPC B60C1/00 C08L7/00 C08L9/00 C08K3/36 C08L101/00 

FIELD: chemistry.

SUBSTANCE: invention relates to rubber composition, process for preparation of a rubber composition and a tire. Rubber composition comprises: a rubber component (A) comprising at least 50 % by weight of at least one rubber on an isoprene base selected from the group consisting of natural rubber and synthetic isoprene rubber; thermoplastic resin (B) and filler (C) comprising at least 70 % by weight of silica. Thermoplastic resin (B) is contained in an amount of 5–40 parts by weight with respect to 100 parts by weight of the rubber component (A). Rubber composition is characterized by a value of tan δ at 0 °C, not greater than 0.5, and the difference between the value of tan δ at 30 °C and the value of tan δ at 60 °C, not more than 0.070. Modulus of accumulation of rubber composition at 1 % dynamic deformation and 0 °C, not more than 20 MPa.

EFFECT: improves the fuel efficiency of tires in low-temperature environments while ensuring the proper performance of tires on wet roads.

10 cl, 4 tbl