LUBRICATING OIL COMPOSITION Russian patent published in 2009 - IPC C10M171/02 C10M169/04 C10M133/06 

FIELD: transportation.

SUBSTANCE: proposed lubricating oil composition comprises the lubricating oil base and primary amine, containing tertiary C₈-C₂₀-alkyl group, represented by a common formula (I), i.e. , where x is an integer varying from 1 to 17, y is an integer varying from 1 to 17, z is an integer varying from 1 to 17 and x+y+z is an integer varying from 1 to 19. The proposed composition boasts kinematic viscosity of 18 to 60 mm²/s at 40°C, viscosity index varying from 130 to 150 and density varying from 0.80 to 0.84 g.s^-3 at 15°C. The proposed composition is intended for hydraulic systems, transmissions, compressors, turbines and/or bearings.

EFFECT: higher thermal oxidation stability, reduced friction and inflammability, power savings.

12 cl, 7 tbl, 18 ex