ELASTOMER COMPOSITION BASED ON BUTADIENE-NITRILE RUBBER Russian patent published in 2019 - IPC C08L9/02 C08L31/04 C08K3/04 C08K5/14 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to the field of elastomeric compositions based on nitrile-butadiene rubbers, which can be used in rubber products that are resistant to the action of oil and products of its processing, in industries that require oil-resistant and ozone-resistant. Elastomer composition contains, pts. wt.: nitrile-butadiene rubber with an average content of acrylonitrile units of 28 % – 50–70, a copolymer of ethylene and vinyl acetate with a content of vinyl acetate units of 26–30 % – 30–50, carbon black P324 – 50.0, acetone anil H – 1.5, zinc oxide – 5.0, stearic acid – 1.5, peroximon F-40 – 4.0.

EFFECT: invention makes it possible to increase the ozone resistance and tear resistance of rubbers based on nitrile-butadiene rubber while maintaining their level of oil and petrol resistance.

1 cl, 2 tbl