FIELD: motor car construction.
SUBSTANCE: Claimed rubber mix contains 100 wt % of rubber component and 5-150 wt % of silicon dioxide. Sid rubber component contains 5-90 wt % of coupled diene polymer, 5-70 wt % of natural rubber and 5-60 wt % of butadiene rubber proceeding from 100 wt % of the rubber component. Coupled diene polymer contains the structural link based thereon and structural link described by the formula (I)
.
At least one of the end groups of said coupled diene polymer is modified by the compound containing the group described by the formula (III)
.
EFFECT: fuel saving, better grip on wet rod surface and wear resistance.
8 cl, 4 tbl
