Carburetor detergents

Fuel and related compositions – Liquid fuels – Aluminum or heavy metal – other than lead – containing

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260558A, 562437, 562439, C10L 122

Patent

active

041770412

ABSTRACT:
Mixed reaction products of isatoic anhydride and N-alkyl trimethylene diamines are found to be effective carburetor detergents for gasoline. Stoichiometric amounts of the reactants are refluxed in an inert solvent for 2 to 8 hours and filtered off to provide the detergent products.

REFERENCES:
patent: 2481540 (1949-09-01), Russell et al.
patent: 3162684 (1964-12-01), Stammbach et al.
patent: 3170955 (1965-02-01), Richards et al.
patent: 3351659 (1967-11-01), Santilli et al.
patent: 3360562 (1967-12-01), Carabateas
patent: 4028901 (1977-06-01), Barber
patent: 4078901 (1978-03-01), Sung et al.
"Isatoic Anhydride Reactions with Primary and Secondary Amines and with some Amides;" J. Org. Chem.; 9; 55, 1944.
Chemical Abstracts; vol. 47, 12030g.
The Chemistry of Amides, Chapter 2, "Synthesis of Amides," by A. L. J. Bechwith, p. 95, Interstate Publishers, 1970.

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