FROST-RESISTANT SEMI-FLUID LUBRICANT Russian patent published in 2022 - IPC C10M169/00 C10M161/00 C10M105/38 C10M133/00 C10M117/00 C10M125/00 C10M147/00 C10N40/04 

FIELD: chemistry.

SUBSTANCE: invention relates to lubricant compositions, in particular to lubricants for heavy-loaded friction assemblies of wheeled and tracked vehicles and can be used in on-board gearboxes and drive mechanisms of equipment operating in the temperature range from minus 60 °C (for a short time from minus 65 °C) to 150 °C. Lubricant contains the following components taken in a certain ratio, calcium sulfonate 13.5–16.9; acetic acid 1.75–2.19; diphenylamine 0.2–0.8; package of additives for transmission oils T-43 8.0–10.0; a mixture of low-temperature mineral oil and a dibasic carboxylic acid ester in a ratio providing a pour point of not more than minus 65 °C to 100.

EFFECT: invention provides higher efficiency of lubrication due to exclusion of possible change of rheological properties at extremely low temperatures (up to minus 65 °C) with simultaneous reduction of costs due to use of raw materials of domestic production.

1 cl, 4 tbl