Corrosion preventive coating consisting of binder,metal pigments and fluoride activators
Abstract
Abstract A COATING AND METHOD FOR REDUCING THE SUSCEPTIBILITY OF METAL ALLOYS INCLUDING TITANIUM ALLOYS, ALUMINUM ALLOYS, HIGH STRENGTH AND STAINLESS STEELS TO STRESS CORROSION. THE COATING COMPRISES THREE COMPONENTS: (1) A METALLIC PIGMENT OF EITHER ZINC OR ALUMINUM; (2) AN ACTIVATOR WHICH, IN THE CASE OF AN ALUMINUM PIGMENT, MAY BE EITHER AN IONIZABLE FLUORIDE (SODIUM FLUORIDE, CALCIUM FLUORIDE, LITHIUM FLUORIDE OR MAGNESIUM FLUORIDE) OR AN ACID SALT (POTASSIUM ACID SULFATE, SODIUM ACID SULFATE OR SODIUM DIACID PHOSPHATE); AND IN THE CASE OF EITHER AN ALUMINUM OR A ZINC PIGMENT, THE ACTIVATOR IS A METALLIC HYDROXIDE (BARIUM HYDROXIDE, CALCIUM HYDROXIDE, CESIUM HYDROXIDE, LITHIUM HYDROXIDE, MAGNESIUM HYDROXIDE, POTASSIUM HYDROXIDE, RUBIDIUM HYDROXIDE, SODIUM HYDROXIDE, OR STRONTIUM HYDROXIDE); AND (3) A BINDER OF CHLORINATED RUBBER, POLYSTYRENE, POLYVINYL CHLORIDE, ALKYD RESINS, PHENOLIC RESINS, ACRYLIC RESINS, OR SILICONE RESINS.
Inventors
- 👤 Howard R Herrigel
- 👤 John C Sargent
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |