GREASE Russian patent published in 2022 - IPC C10M169/00 C10M117/02 C10M129/28 C10M125/00 C10M101/00 C10M107/10 C10N30/06 C10N30/08 C10N40/04 

FIELD: lubrication.

SUBSTANCE: invention relates to grease used for lubricating "metal-metal" and "metal-rubber" friction surfaces ensuring reliable operation of automotive braking equipment in the temperature range of the friction units from minus 60°C to plus 120°C (for a short term up to plus 150°C) and at an atmospheric temperature from minus 60°C to plus 60°C. The grease comprises a base oil, lithium soap formed as a result of interaction of fatty carboxylic acid and lithium hydroxide, functional additives, an antioxidant and a corrosion inhibitor, additionally comprises polyethylsiloxane liquid and dibutyl phthalate; the base oil consists of a mixture of hydrodeparaffinised oil and synthetic oil in the form of polyalphaolefin oil, taken in a mass ratio of 1.0 to 1.2:2.0 to 2.5, wherein polyalphaolefin oil is taken in a weight ratio of 3.0 to 3.2:0.9 to 1.5 to polyethylsiloxane liquid, 1,2,3-benzotriazole is used as an anticorrosion additive, and agidol-1 is used as an antioxidant additive, taken in a mass ratio of 2.5 to 3:1 to 1.5, with the following ratio of components, wt.%: lithium soap of higher fatty acids 19 to 25; additives 2 to 4; dibutyl phthalate 4 to 7; base oil the rest.

EFFECT: creation of a lubricant for friction units with a high interrepair service life, with high mechanical stability and a wide temperature range for use.

1 cl, 1 ex