RUBBER MIXTURE Russian patent published in 2025 - IPC C08L9/06 C08L9/02 

FIELD: chemistry.

SUBSTANCE: invention relates to the rubber industry, particularly to production of rubber mixtures used for making articles for various purposes, including production of rubber mixtures for making railroad fastening gaskets. Rubber mixture contains isoprene rubber СКИ-3, butadiene-methylstyrene rubber containing α-methylstyrene 22-25 wt.%, butadiene-nitrile rubber containing acrylic acid nitrile 27-29 wt.%, sulphur N,N'-dithiodimorpholine, N-cyclohexyl-2-benzothiazolylsulphenamide, tetramethylthiuram disulphide, zinc oxide, stearic acid, N-isopropyl-N'-phenyl-n-phenylenediamine, acetonanil H, wax 3 “В-П”, technical carbon N 220, technical carbon “П 514”, silicon dioxide Zeosil 1165 “МР”, hepsol “ХКП”, rosin, N-nitrosodiphenylamine, industrial oil “И-12A”, trans-polynorbornene and taurite “ТС-Д”.

EFFECT: invention ensures reduction of changes in conditional tensile strength, relative elongation at break and hardness after action of “СЖР-1”, as well as increase of tangent of angle of mechanical losses of rubber.

1 cl, 2 tbl, 4 ex