Additives
AssigneeEthyl Corporation
InventorRobert E. Malec
Life of this patent
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Abstract
The reaction product of (a) high molecular weight hydrocarbon-substituted phenols, (b) aldehydes, (c) ammonia or amines having a reactive hydrogen atom, and (d) alkylene oxides are effective dispersants for lubricating oil and impart detergent properties to liquid hydrocarbon fuels such as gasoline.
Claims14
A dispersant-detergent composition made by the process comprising reacting (a) one mole part of a polyolefin hydrocarbon-substituted phenol wherein said polyolefin hydrocarbon substitutent has an average molecular weight of from about 650 to 5000, (b) from about 1 to 10 mole parts of a C.sub.1-4 aldehyde, (c) from about 0.1 to 10 mole parts of an alkylene polyamine having the formula H.sub.2 N--R.sub.1 --NH--H wherein n is an integer from 1 to about 6 and R.sub.1 is a divalent hydrocarbon group containing 2 to about 4 carbon atoms, and (d) from about 0.1 to 50 mole parts of an alkylene oxide containing from 2 to about 6 carbon atoms.
Dependencies are inferred from the claim text.