ELASTOMERIC COMPOSITION BASED ON BUTADIENE-NITRILE RUBBER WITH ENHANCED ATMOSPHERE AND OZONE RESISTANCE Russian patent published in 2008 - IPC C08L9/00 C08L9/02 C08K5/14 C08K5/205 C08K5/21 

FIELD: rubbers.

SUBSTANCE: invention relates to production of elastomeric composition based on butadiene-nitrile rubbers used for preparing molded thickening rubber-technical articles working in contact with different automobile oils and lubricants at temperatures below 130°C. Proposed elastomeric composition comprises the following components, mas. p. p.: butadiene-nitrile rubber, 5-70; partially hydrogenated butadiene-nitrile rubber with the residual content of double bonds from 1.0 to 5.5%, 30-95; bis-(tert.-butyl-peroxyisopropyl)-benzene as a vulcanizing agent, 4-8; triallyl isocyanurate as a coagent of peroxide vulcanization, 0.5-2.0; technical carbon, 40-60; stearic acid, 1-3, and antioxidant, 1-3. Composition is prepared by conventional methods. Invention provides enhancing resistance to oil and gasoline, resistance to atmosphere and resistance against accumulation of relative residual deformation at increased temperatures.

EFFECT: improved and valuable properties of composition.

5 cl, 2 tbl