PNEUMATIC TIRE Russian patent published in 2019 - IPC C08L23/28 B60C5/14 C08K3/04 C08K3/22 C08L101/00 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to a pneumatic tire. Pneumatic tire includes sealed and connecting rubber. Rubber composition for hermetic layer includes 25 to 75 parts by weight of carbon black with specific surface area of nitrogen adsorption from 25 to 95 m²/g, from 1 to 13 parts by weight of resin and from 0.1 to 1.8 parts by weight of zinc oxide per 100 parts by weight of diene rubber, containing 50 to 100 parts by weight of halogenated butyl rubber. Dynamic elastic deformation accumulation module at -45 °C of the rubber composition is not more than 600 MPa. HS_T/HS_IL ratio rubber hardness HS_T rubber composition for connecting rubber, which forms a connecting rubber, to rubber hardness HS_IL rubber composition for hermetic layers ranges from 1.15 to 1.25.

EFFECT: improved stability of steering control and crack propagation resistance in conditions of low temperatures in comparison with standard pneumatic tire.

1 cl, 1 dwg, 3 tbl