FIELD: automotive industry.
SUBSTANCE: rubber mixture comprises 0.5-100 weight percent of reaction product obtained by reacting of a part or all the polymer composed of conjugated diene compound and an aromatic vinyl compound with an anhydride; 0.1-20.0 weight percent of triamine, 5-150 weight percent of silicon dioxide and 100 weight percent of the rubber component. Wherein the reaction product has an average weight molecular weight from 1.0⋅103 to 1.0⋅105, and triamines are compounds of the following formula:
wherein each RA, RB, RC, RD and RE, independently represents a hydrogen atom, and ALK1 and ALK2 represent a C1-C12 aliphatic hydrocarbon group.
EFFECT: improved abrasion resistance without deterioration in energy use efficiency.
10 cl, 3 tbl
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