发明授权
US4177041A Carburetor detergents 失效
化油器清洁剂

Carburetor detergents
摘要:
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.
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