Fuel compositions containing esters and nitrogen-containing dispersants
Improved fuel compositions with decreased tendency to form deposits in the carburetor and on ''early fuel evaporation'' heating elements, inlet valves and the like contain a normally liquid fuel (usually a hydrocarbon fuel), a carboxylic acid ester of lubricating viscosity, and an oil-soluble nitrogen-containing dispersant. The dispersant is characterized by the presence therein of a substantially saturated hydrocarbon-based radical having at least about 50 carbon atoms, and it is preferably a carboxylic dispersant (e.g., the reaction product of a polyisobutenyl succinic acid-producing compound with a polyethylene polyamine) or a Mannich-type dispersant (e.g., the reaction product of an alkyl phenol with formaldehyde and a polyethylene polyamine).
- Assignee:
- Lubrizol Corp.
- Patent Number(s):
- US 4032304
- OSTI ID:
- 7300055
- Country of Publication:
- United States
- Language:
- English
Similar Records
Lubricating oil with improved diesel dispersancy
Liquid fuels containing polyamine dispersants