RUBBER MIXTURE AND PNEUMATIC TYRE Russian patent published in 2016 - IPC C08L15/00 C08C19/22 C08C19/25 C08K3/36 B60C1/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a rubber mixture and pneumatic tyre. Rubber mixture contains silicon dioxide and conjugated diene polymer, which is obtained by reacting a compound containing a nitrogen atom and a silicon atom, with an active end of a copolymer obtained by polymerising a monomer component containing a compound of conjugated diene, and silicon-containing vinyl compound. Reaction uses a polymerisation initiator of formula (I). Content of conjugated diene polymer per 100 wt% of rubber component ranges from 5 to 90 wt%. Silicon dioxide is included in an amount of 10 to 150 pts.wt per 100 pts.wt rubber component.

EFFECT: invention improves fuel saving, properties of adhesion with wet road surface, wear resistance and manufacturability in a balanced manner.

6 cl, 12 tbl