A METHOD FOR PREPARING AN OIL SOLUBLE NITROGEN CONTAINING COMPOSITION USEFUL IN LUBRICANTS AND FUELS

摘要

Compositions useful as lubricant and fuel dispersants are prepared by reacting a hydroxyaromatic compound containing an aliphatic or alicyclic substituent which has at least about 6 carbon atoms with an aldehyde in the presence of an alkaline reagent and at a temperature up to about 125 DEG C., substantially neutralizing the resulting intermediate at a temperature up to about 150 DEG C., and then reacting with a primary or secondary amino compound.