COMPOSITION ON THE BASIS OF NITRILE RUBBER, LATEX COMPOSITION OF HIGH-SATURATED NITRILE RUBBER AND CROSSLINKED RUBBER Russian patent published in 2018 - IPC C08L9/02 C08L9/04 C08K5/13 C08K7/02 

FIELD: chemistry.

SUBSTANCE: invention relates to a nitrile rubber composition. Nitrile rubber composition comprises a highly saturated nitrile rubber comprising α,β-ethylenically unsaturated nitrile monomer units in an amount of from 8 to 60 % by weight, and with an iodine value of 120 or less, and an alkylated phenolic compound, in which the percentage of the alkylated phenolic compound relative to the sum of the highly saturated nitrile rubber and the alkylated phenolic compound is from 0.01 to 1 % by weight, and the difference (η2-η1) between the plasticity index η2 after aging at 70 °C for 7 days in the form of an aqueous dispersion when dispersed in water and a plasticity index η1 until aging is 12 or less.

EFFECT: invention makes it possible to improve technological properties, as well as significantly improve the tensile stress of vulcanizates from the composition.

9 cl, 2 tbl