Abstract:
THE INVENTION IS DIRECTED TO LUBRICANTS AND FUELS COMPRISING NITROGEN-CONTAINING COMPOSITIONS AND MORE SPECIFICALLY TO A PROCESS FOR PREPARING NITROGEN-CONTAINING COMPOSITIONS PARTICULARLY USEFUL AS RUST-INHIBITORS FOR LUBRICANTS AND FUELS. THE NITROGEN-CONTAINING COMPOSITIONS ARE PREPARED BY REACTING EFFECTIVE AMOUNTS OF AT LEAST ONE ALKYLENE AMINE WITH FORMIC ACID OR A FORMIC ACID-PRODUCING COMPOUND AT A TEMPERATURE OF AT LEAST ABOUT 25*C.
Abstract:
Oil-soluble carboxylic acid acylating agents are prepared by reacting a high molecular weight mono- or polycarboxylic acid with a sulfonating agent. The resulting acylating agents can be converted to acidic, neutral, or basic metal salts. Both the novel acylating agents and the salts are useful additives for lubricants and fuels and as intermediates for the preparation of other useful lubricant and fuel additives, particularly high molecular weight oil-soluble acylated nitrogen compositions and esters. The latter are prepared by reacting the acylating agents with, for example, alkylene polyamines or mono- or polyhydric alcohols.