METAL-PLAGUING ADDITIVE FOR LUBRICATING COMPOSITIONS Russian patent published in 2007 - IPC C10M129/40 C10N10/02 C10N10/08 C10N30/06 

FIELD: lubricants.

SUBSTANCE: invention proposes oil-soluble metal-plaguing additive, which can be widely used to reduce wear of friction surfaces of especially heavy duty parts of machines and mechanisms. Additive contains 10-45% unsaturated carboxylic acid selected from C₆-C₂₂-fractions, 2-30% cuprous and cupric salts of unsaturated carboxylic acid selected from C₆-C₂₂-fractions, 1-20% tin(II) salt of unsaturated carboxylic acid selected from C₆-C₂₂-fractions, 0.001-0.05% water, and to 100% mineral oil.

EFFECT: reduced coefficient of friction under heavy duty conditions and increased resistance if additive against stratification.

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