Abstract:
Hydrocarbyl acid phosphate salts of ditetrahydropyrimidines and petroleum hydrocarbon compositions containing the same. The salts are formed by neutralizing with a hydrocarbyl acid orthophosphate at least 25 percent of the basic nitrogens of the ditetrahydropyrimidine. Petroleum hydrocarbon compositions containing these salts exhibit desirable properties such as enhanced corrosion resistance and improved detergency. Gasoline compositions containing the salts are also characterized by improved carburetor anti-icing characteristics.
Abstract:
Hydrocarbyl acid phosphate salts of polyamides having at least one amino group and hydrocarbon fuel compositions containing same. The salts are formed by neutralizing with a hydrocarbyl acid phosphate at least 10 percent of the amino groups of a polyamide containing from about 2 to about 6 amide groups and at least one amino group. Hydrocarbon fuel compositions containing these salts exhibit desirable properties such as enhanced carburetor detergency and carburetor anti-icing characteristics, improved water tolerance, excellent rust inhibition, and cleaner engine operation while engines operated thereon exhibit reduced hydrocarbon content in the exhaust.