VULCANIZABLE RUBBER MIX Russian patent published in 1999 - IPC

FIELD: rubber-processing industry, more particularly, preparation of vulcanizable rubber mix. SUBSTANCE: synthetic isoprene rubber based- rubber mix comprises sulfur, zinc oxide, vulcanization accelerator, N-isopropyl-N¹-phenyl-p-phenylene diamine, industrial carbon, softener, stearic acid, and modifier. Mixture comprises, as accelerator, 2- mercaptobenzthiazole; as softener, rosin and rubrax; as modifier, molecular complex of resorcinol and hexamethylene tetramine. Mixture further comprises phenyl-β-naphthylamine, butyl rubber and polyvinyl chloride, ratio of components is as follows, wt. pts: synthetic isoprene rubber, 86.3-80.7; butyl rubber, 4-6; polyvinyl chloride, 6.7-7.7; sulfur 3.5; zinc oxide, 5; 2-mercaptobenzthiazole, 0.3; N-isopropyl- N¹-phenyl-p-phenylenediamine, 1; phenyl-β-naphthyl amine, 1; industrial carbon, 55; rosin, 0.5; stearic acid, 0.5; molecular complex of resorcinol and hexamethylene diamine rubrax, 4. EFFECT: higher strength of fixation and adhesion of rubbers. 2 tbl