High performance multifunctional corrosion inhibitors especially for combining at 20 to 50 weight percent with soap or paint
AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorsCharles T. Lynch, Fred W. Vahldiek, Mohammad Khobaib
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Abstract
A multifunctional corrosion inhibitor consisting essentially of an alkali metal borate, an alkali metal nitrate, an alkali metal nitrite, an alkali metal metasilicate, an alkali metal phosphate, mercaptobenzothiazole and at least one selected surfactant.
Claims4
A soap formulation comprising from 20 to 50 weight percent of a multifunctional corrosion inhibiting composition, said composition consisting essentially of the following components in the approximate concentrations indicated, in weight percent:
- ______________________________________ Component Concentration ______________________________________ Alkali metal borate 68.0 to 70.0 Alkali metal nitrate 8.5 to 14.0 Alkali metal nitrite 13.5 to 17.5 Alkali metal metasilicate 0.5 to 1.7 Alkali metal phosphate 0.8 to 0.9 Mercaptobenzothiazole (MBT) 0.25 to 0.5 At least one selected surfactant 1.05 to 2.0 and, optional, the following components:
- Zinc sulfate 1.0 to 2.0 Benzotriazole (BT) 0.25 to 0.5 ______________________________________
A paint formulation comprising from 20 to 50 weight percent of an encapsulated, dry multifunctional corrosion inhibiting composition, said composition consisting essentially of the following components in the approximate concentrations indicated, in weight percent:
- ______________________________________ Component Concentration ______________________________________ Alkali metal borate 68.0 to 70.0 Alkali metal nitrate 8.5 to 14.0 Alkali metal nitrite 13.5 to 17.5 Alkali metal metasilicate 0.5 to 1.7 Alkali metal phosphate 0.8 to 0.9 Mercaptobenzothiazole (MBT) 0.25 to 0.5 At least one selected surfactant 1.05 to 2.0 and, optional, the following components:
- Zinc sulfate 1.0 to 2.0 Benzotriazole (BT) 0.25 to 0.5 ______________________________________
Dependencies are inferred from the claim text.