LUBRICATING COMPOSITION HAVING IMPROVED ADHESION CAPABILITY Russian patent published in 2022 - IPC C10M101/02 C10M107/02 C10M111/04 C10M115/10 C10M129/54 C10M145/16 C10M157/00 C10M169/00 

FIELD: chemistry.

SUBSTANCE: present invention relates to a lubricating composition containing (i) at least one basic oil, (ii) at least one soap based on calcium sulfonate, and (iii) at least one copolymer of composite ester of dicarboxylic acid, containing composing links obtained from (a) at least one α-olefin and (b) at least one composite ester formed by esterification of α-β-ethylene-unsaturated dicarboxylic acid or its derivative with alcohol, wherein the molar ratio of (a)/(b) is in the range from 0.5 to 4. The invention also relates to the use in a lubricating composition containing (i) at least one basic oil and (ii) at least one soap based on calcium sulfonate of at least one copolymer of composite ester of dicarboxylic acid, containing composing links obtained from (a) at least one α-olefin and (b) at least one composite ester formed by esterification of α-β-ethylene-unsaturated dicarboxylic acid or its derivative with alcohol, wherein the molar ratio of (a)/(b) is in the range from 0.5 to 4, for improvement of an adhesion capability measured in accordance with DIN 51807 standard, to the specified lubricating composition, as well as to a method for lubrication of a mechanical component, including the use of such a composition.

EFFECT: creation of a lubricating composition thickened with soaps based on calcium sulfonate, having an improved adhesion capability.

16 cl, 2 ex, 7 tbl