HYDROXY AROMATIC MANNICH BASE CONDENSATION PRODUCTS AND THE USE THEREOF AS SOOT DISPERSANTS IN LUBRICATING OIL COMPOSITIONS

摘要

Low molecular weight oxazine ring-containing Mannich base condensates o f hydroxy aromatic compounds, aldehyde; and amine. Such compounds are useful a s soot dispersants in lubricating oils when used alone, or in combination with high molecular weight dispersants.