CYLINDER LUBRICANT FOR TWO-STROKE MARINE ENGINE Russian patent published in 2014 - IPC C10M163/00 C10M169/04 C10M101/00 C10N40/26 C10N30/12 

FIELD: chemistry.

SUBSTANCE: invention relates to a cylinder lubricant, having a base number (BN) determined according to standard ASTM D-2896 greater than or equal to 15 mg KOH/g of lubricant, containing: one or more lubricating base oils for marine engines, at least one detergent based on alkali or alkali-earth metals, overbased with metal carbonates, optionally in combination with one or more neutral detergents, one or more oil-soluble fatty amines containing 16-22 carbon atoms and having BN determined according to standard ASTM D-2896 from 150 to 600 mg KOH/g. The present invention also relates to use of the cylinder lubricant (versions) and an additive concentrate for preparing the cylinder lubricant.

EFFECT: obtaining a lubricant having neutralisation power with respect to sulphuric acid formed during combustion of high-sulphur liquid fuel, while limiting formation of deposits during use of low-sulphur liquid fuel.

29 cl, 4 ex, 2 tbl, 2 dwg