OZONE-RESISTANT ELASTOMER COMPOSITION BASED ON BUTADIENE-NITRILE RUBBER Russian patent published in 2019 - IPC C08L9/02 C08L17/00 C08L23/08 C08K3/04 C08K5/14 

FIELD: chemistry.

SUBSTANCE: invention relates to an elastomer composition based on butadiene-nitrile rubber, which can be used for making oil-and-petrol and ozone resistant rubber articles. Ozone resistant elastomer composition based on butadiene-nitrile rubber contains, pts.wt: butadiene-nitrile rubber with average content of acrylonitrile links of 28 % – 60, copolymer of ethylene with vinyl acetate with content of vinyl acetate links 26–30 % – 40, regenerate – 40–60, technical carbon P324-40, curing agent peroxymone F-40 – 4. Regenerate is first modified with a copolymer of ethylene and vinyl acetate.

EFFECT: invention increases ozone resistance and tear resistance of rubbers based on butadiene-nitrile rubber.

1 cl, 2 tbl