RUBBER MIXTURE Russian patent published in 1995 - IPC

FIELD: rubber industry. SUBSTANCE: rubber mixture for linkage with copper-base alloys has, mas. p.: cis-1,4-polyisoprene rubber 100 and 2-ketohexose as adhesion addition 0.8-8. Preferable quantity of 2-ketohexose is 6 mas. p. per 100 mas. p. cis-1,4-polyisoprene rubber, not more. Fructose or a mixture of fructose and sorbose are preferable sources of 2-ketohexose. Accelerating agents of sulfenamide type for vulcanization were preferable used at concentration 1-2 mas. p. per 100 mas. p. cis-1,4-polyisoprene rubber in rubber mixtures. Mixture is used for tire making. EFFECT: increased resistance of adhesion of rubber with copper-base alloys against prolonged effect of heat and moisture. % cl, 3 tbl