RUBBER MIXTURE BASED ON BUTADIENE-METHYLSTYRENE RUBBER Russian patent published in 2016 - IPC C08L9/06 C08K3/04 C08K3/06 C08K3/22 C08K5/09 C08K5/31 C08K5/47 

FIELD: rubber industry.

SUBSTANCE: invention relates to rubber industry, in particular to development of rubber mixture based on butadiene-methylstyrene rubber, products from which are characterized by higher heat and fire resistance. Rubber mixture contains butadiene-methylstyrene rubber, curing agent, sulphur, mixture of curing accelerators, zinc oxide, organic curing activator, stearic acid, modifying additive and filler, technical carbon. At that, as mixture curing accelerators mixture of dibenzothiazyl disulfide and diphenyl guanidine is used, and as modifying additive is pre-treated with diethylene glycol pearlite in following ratio of components, pts. wt: butadiene-methylstyrene rubber - 100.0; sulphur - 2.0; zinc oxide - 5.0; stearic acid - 2.0; dibenzothiazyl disulfide - 1.5; diphenylguanidine - 0.3; technical carbon P324 - 40.0; said pearlite - 10.0.

EFFECT: invention enables production of vulcanizate based on butadiene-methylstyrene rubber, having higher heat- and fire-resistance.

1 cl, 2 tbl