POLYETHER SUBSTITUTED MANNICH BASE AS FUEL OR ASH-FREE DISPERSANT

摘要

Reaction products in which polyethers are grown from substituted phenol-containing Mannich bases have been found to be effective ashless dispersants and detergents for fuels and lubricants. The reaction products of the invention are obtained by (1) reacting phenol or a C1 to about a C40 alkylphenol with a suitable primary or secondary amine and a C1 to about a C30 aldehyde, thereafter (2) reacting the resultant intermediate product of (1) with an alkali metal or alkali metal salt thereof, and then (3) reacting the product of (2) with a C2 to about a C8 alkylene epoxide or mixtures thereof to produce a polyether-substituted Mannich base.