COMPOSITE LUBRICANT Russian patent published in 2016 - IPC C10M113/12 C10M107/38 C10N30/08 

FIELD: chemistry.

SUBSTANCE: present invention relates to a composite lubricant comprising a base oil, which is used as perfluoropolyether, with inclusion of fine additive, thickener, wherein perfluoropolyether is applied with a viscosity in range of 200 mm²/s to 350 mm²/s, measured at 20 °C, and finely divided additives as thickening applied modified pyrogenic silicon dioxide in form of micronised methyl silica powder with a particle size in range from 0.5 mcm to 40 mcm, and composite lubricant components taken in following proportion, wt%: 86.5-93.0 perfluoropolyether; modified pyrogenic silicon dioxide 7.0-13.5.

EFFECT: technical result of present invention is a wider operating temperature range in wider temperature threshold from minus 55 °C to +170-180 °C and high stability of lubricating composition during operation, including in high-temperature environment.

1 cl, 2 tbl