POLYMER COMPOSITION Russian patent published in 2022 - IPC C08L9/02 C08K3/04 C08K3/20 C08K5/10 C08K5/16 C08J5/10 

FIELD: polymer materials science.

SUBSTANCE: invention relates to polymer materials science; it can be used for the manufacture of rubber sealing products. A polymer composition includes butadiene-nitrile paraffinate rubber of BNKS-18A(AN)grade, isoprene rubber of SKI-3 grade, technical sulfur, tetramethylthiuramdisulfide, N,N'-dithiodimorpholine, N-cyclohexyl-2-benzthiazolyl-sulfenamide, zinc oxide, phenyl-β-naphthylamine, P803technological carbon, Y354 technological carbon, TGM-3 oligoesteracrylate, dibutylsebacinate, stearic acid, silicon dioxide, N-isopropyl-N'-phenyl-p-phenylenediamine.

EFFECT: obtainment of a polymer composition by a special technology, with physical and technological characteristics providing reliable sealing of pistons of brake cylinders in conditions of variable temperatures from -40°C to +80°C.

1 cl, 2 tbl, 3 ex