LUBRICANT COMPOSITION, INHIBITING ADSORPTION OF ALPHA-OLEFIN, ADSORPTION INHIBITION METHOD AND ADSORPTION INHIBITOR Russian patent published in 2019 - IPC C10M169/04 C10M141/00 C10M141/02 C10M141/06 C10N30/06 C10N30/12 

FIELD: chemistry.

SUBSTANCE: present invention discloses a method of using a derivative of sarcosic acid, an aspartic acid derivative or a diethanolamine derivative or a mixture thereof for adsorption inhibition α-olefin present in the lubricant composition on the metal surface, when the lubricating composition contains as base oil any of oils from group III, group IV and polyisobutylenes, assigned to group V according to classification of base oils by API, or mixture thereof, and α-olefin, present in amount of 1 wt. % or less relative to total weight of composition, where sarcosic acid derivative is described by following formula (1), where functional group R₁ denotes alkyl C_16-20; where the aspartic acid derivative is described by following formula (2), where the R₂ and R₃ denote hydrogen or the same or different alkyl C_3-6, alkenyl or hydroxyalkyl; functional group R₄ denotes alkyl C_1-30 or alkenyl, alkyl C_1-30, having an ether bond, or hydroxyalkyl; and functional group R₅ denotes a saturated or unsaturated group C_1-30 carboxylic acid, or alkyl C_1-30, alkenyl, or hydroxyalkyl; and where the diethanolamine derivative is described by following formula (3), where the functional group R₆ denotes alkyl C_16-20; and wherein amount of added sarcosic acid derivative or diethanolamine derivative ranges from 0.001 to 3 wt. % relative to total amount of composition, or amount of added aspartic acid derivative ranges from 0.005 to 3 wt. % relative to total amount of composition.

EFFECT: disclosed is a lubricant composition which inhibits adsorption of alpha-olefin, an adsorption inhibition method and an adsorption inhibitor.

1 cl, 2 tbl, 15 ex