LUBRICANT FLUID Russian patent published in 2021 - IPC C10M169/04 C10M111/02 C10M145/14 C10N30/02 C10N40/08 C10N40/10 

FIELD: lubricants.

SUBSTANCE: present invention discloses lubricating liquids suitable for use as shock-absorbing liquids which can be obtained from a favorable combination of GTL base oil, having kinematic viscosity at 100 °C in range of 2 to 10 mm²/s; mixtures of alkylbenzenes which are mono- or di-substituted with linear and/or branched alkyl groups, where the alkyl groups are C₆-C₂₀ alkyl groups; and a viscosity modifier selected from polymers or copolymers of methacrylate, butadiene, olefins or alkylated styrenes. Shock-absorbing fluid contains from 50 to 90 wt % of lubricating oil of base oil GTL, has viscosity index in range from 100 to 600 and setting point is below −30 °C.

EFFECT: such combination demonstrates good shear resistance and good viscosity at low temperature.

3 cl, 2 tbl