REGENERATION MODIFIER OF RUBBER WASTE Russian patent published in 1998 - IPC

FIELD: rubber processing industry. SUBSTANCE: claimed modifier comprises carbochain rubber, vulcanizing system consisting of sulfenamide, zinc oxide, stearic acid and rosin, mixture of thiazole with organic peroxide. Thiazole and organic peroxide in the mixture are used in weight ratios of (0.3-1.0): (1.0-0.3) ratios. Modifier components comprise (wt parts):100 rubber; 14-27 vulcanizing system; and 15-30 mixture of thiazole with organic peroxide. Modifier makes it possible to utilize rubber waste. Waste is varied in composition. The resulting regenerate is used independently as commercial rubber mix. Regenerate is also used as additive to fresh rubber mixes. EFFECT: improved properties of the modifier. 53 ex, 6 tbl