TWO-PHASE LUBRICATING OIL COMPOSITION Russian patent published in 2017 - IPC C10M111/04 C10M169/04 C10N20/00 C10N30/02 C10N40/02 C10N40/04 C10N40/08 C10N40/25 

FIELD: chemistry.

SUBSTANCE: present invention relates to a lubricating oil composition containing a mixture of: (A) hydrocarbon as a low-viscosity component, wherein kinematic viscosity at 40 °C of said low-viscosity component varies from 5 to 500 mm²/s, (B) polyalkylene glycol (PAG) as a high-viscosity component, wherein weight ratio of oxygen/carbon ranges from 0.450 to 0.580, wherein kinematic viscosity at 100 °C of said high-viscosity component varies from 2.5 to 100 mm²/s, and (C) a compound used as a control component, wherein ratio of oxygen/carbon ranges from 0.080 to 0.350, wherein said control component is a compound containing aliphatic ester, wherein carbon chain, different from chain in ester group, ranges from C4 to C18.

EFFECT: technical result of present invention is lower stratification temperature and preservation of kinematic viscosity at high temperatures.

8 cl, 4 ex, 5 tbl, 3 dwg