| abstract |
There are lubricant compositions containing a) a mineral and / or synthetic base oil, b) at least one compound of the formula I <IMAGE> in which R1 and R2 have the meaning given in claim 1, c) further phosphorus and / or sulfur compounds, which in the synthesis of the compounds of the formula I are formed as by-products and are not removed, d) optionally further lubricant additives, the base oil a) containing 0.05 to 5% by weight, based on the base oil, of the compound of the formula I, is described. Furthermore, a selection from the group of compounds of the formula I is claimed as substances. |