The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 14, 1978
Filed:
Jan. 03, 1977
Theo I Eliades, Scarborough, CA;
Noemi B Ramirez, Scarborough, CA;
Surpass Chemicals Limited, Scarborough, CA;
Abstract
An oil dispersible rust inhibitor consisting of a chemical complex of a metal nitrite with a hetero-atomic aprotic polar organic solvent. Preferred metal nitrites are the alkali, alkaline earth metals or nickel, zinc, or cadmium nitrites. Preferred solvents are dimethylsulfoxide, dimethylformamide, dibutylformamide, n-methylpyrrolidone, dioxane, ethylcarbonate, tetrahydrofuran and their derivatives. The complex is prepared by reacting a nitrite ion with a solution of a basically reacting metal salt in the selected solvent. The excess metal salt is removed from the solution after completion of the reaction. The complex is readily solubilized in oil through the use of common dispersants.