abstract |
THIS INVENTION CONCERNS THE CONDENSATION PRODUCT OF AN ALDEHYDE REACTANT HAVING MORE THAN ONE CARBON ATOM AND/OR KETONE REACTANT, FORMALDEHYDE, AN ALKYLENE POLYAMINE, AN ALKYL-SUBSTITUTED PHENOL, AND A METHYL-SUBSTITUTED AMINOPYRIDINE. THESE COMPOSITIONSCAN BE USED AS ASHLESS ALKALINE ADDITIVES FOR LUBRICATING OILS. |