FIELD: motor car construction.
SUBSTANCE: claimed rubber mix comprises the rubber component and silicon dioxide. Said rubber component contains 30-90 wt % of bonded diene polymer per 100 wt % of the rubber component. Said bonded diene polymer contains the structural unit obtained from the bonded diene and structural unit described by formula (I). Terminal group of the bonded diene polymer is modified by the compound of formula (II). The rubber component contains the extra natural and butadiene rubber. The content of silicon dioxide per 100 wt % of the rubber component makes 10-100 wt %.
EFFECT: better fuel saving and grip with wet road surface, higher wear resistance.
6 cl, 4 tbl, 6 ex
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