FIELD: chemistry.
SUBSTANCE: rubber mixture contains a rubber component, sulphur and a sulphenamide-based vulcanisation accelerator of formula (I). The rubber mixture has excellent adhesion to metal such as steel chord without such problems as deterioration of physical properties and scurf on rubber after vulcanisation. The vulcanisation accelerator has the structural formula (I) 
given below, where R1 is a branched alkyl group with 3-12 carbon atoms; R2 is a linear alkyl group with 1-10 carbon atoms or a branched alkyl group with 3-10 carbon atoms; x equals 1 or 2 and n equals 0 or 1.
EFFECT: improved properties of the mixture.
13 cl, 2 tbl, 19 ex
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