MARINE ENGINE GREASE Russian patent published in 2019 - IPC C10M133/06 C10M163/00 C10M169/04 C10N40/26 C10N30/12 

FIELD: chemistry.

SUBSTANCE: present invention relates to a marine engine lubricant composition comprising: at least one base lubricating oil; at least one fatty amine of formula (I) with radical values given in the description and claim, where the fatty amine with an alkali number BN, determined in accordance with ASTM D-2896 standard, ranges from 150 to 350 milligrams of potassium hydroxide per gram of amine, and at least one additive selected from overbase detergents and/or neutral detergents. Invention also relates to use of the lubricant composition as a lubricant for cylinders in a single-cylinder engine, which can be used with oil fuel with sulphur content of less than 1 wt. %, and to reduce formation of deposits on heating parts of the marine engine. R₁R₂N-(CH₂)₃-[NH(CH₂)₃]_n-NH₂ (I).

EFFECT: present invention also discloses the use of a fatty amine in a lubricant composition to reduce formation of deposits on heating parts of a marine engine, wherein the fatty amine is a fatty amine of formula (I).

14 cl, 7 tbl