FIELD: chemistry.
SUBSTANCE: invention relates to the field of industrial rubber compositions, intended for obtaining a semiproduct for tyres. A reinforced rubber composition based on at least (a) an elastomer matrix, containing non-halogenated natural caoutchouc, (b) a reinforcing filling agent, (c) a special polyamine compound, present in an amount from more than 0 to less than 7 mmol per 100 g of an elastomer.
EFFECT: invention provides the improved hysteresis of the rubber composition properties.
15 cl, 10 tbl
