| abstract |
The multifunctional aqueous lubricant according to the invention comprises at least one water-soluble salt of dithiodiglycolic acid and at least one water-soluble compound chosen from the group consisting of: a) phosphoric esters of general formula: (CF DRAWING IN BOPI) in which R represents an alkyl, alkenyl or alkylaryl radical having from 6 to 20 carbon atoms, k is equal to 2 or 3, m is a number ranging from 0 to 20, x is equal to 1 or 2 and their salts, and b) the water-soluble salts of the alkylthio acids of general formula: R'-S (CH 2) n -COOH in which n is a number ranging from 1 to 10 and R 'represents an alkyl, alkenyl or aryl radical having from 6 to 20 atoms of carbon, the dithiodiglycolic acid mass ratio compound (s) I and / or II being between 1/1 and 50/1. |