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U.S. Department of Energy
Office of Scientific and Technical Information

Gasoline compositions

Patent ·
OSTI ID:6482324
Fuel induction system of internal combustion engines are cleansed by operating the engine on a gasoline containing a detergent amount of the condensation product of phenol, and preferably a high molecular weight alkylphenol, an aldehyde, and an amine having a H--N < group. Effectiveness is improved, especially when using a large amount of the detergent composition or when using the detergent composition with water intolerant gasolines, by inclusion of demulsifier containing an aryl sulfonate, a polyether glycol, and an oxyalkylated phenol formaldehyde resin. The concentrates of this invention also include one or more alcohols of about 4 to about 10 carbon atoms, an aromatic solvent, and a corrosion inhibitor. This invention also comprises gasolines containing these concentrates; the concentrate being present in a small amount that confers carburetor detergency properties to the gasoline.
Assignee:
TIC; EDB-79-025976; ERA-04-016577
Patent Number(s):
US 4116644
OSTI ID:
6482324
Country of Publication:
United States
Language:
English

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