Surface finishing
Abstract
Abstract A COMPOSITION FOR PROVIDING A METALLIC SURFACE WITH PROTECTION AGAINST MARRING, MARKING, AND STAINING WHICH COMPRISES AN AQUEOUS SOLUTION HAVING A MOLAR CONCENTRATION OF PHOSPHATE, CHROMATE, MAGNESIUM AND AMMONIUM IONS OF FROM 0.01 TO 1.00 MILE PER 100 ML. OF WATER AND A MOLAR CONCENTRATON OF SILICATE IONS OF FROM 0.01 TO 33% OF THE MOLAR CONCENTRATION OF PHOSPHATE, CHROMATE, MAGNESIUM, AND AMMONIUM IONS. THE PHOSPHATE, CHROMATE, MAGNESIUM, AND AMMONIUM IONS ARE PROPORTIONATELY PRESENT IN THE AQUEOUS SOLUTION AS 27-73 MOLE PERCENT PHOSPHATE ION, 5-39 MOLE PERCENT CHROMATE ION, 0-23 MOLE PERCENT MAGNESIUM ION, AND 0.5-35 MOLE PERCENT AMMONIUM ION. A METHOD OF PROVIDING A METALLIC SURFACE WITH A COATING FOR PROTECTION THE METALLIC SURFACE AGAINST MARRING, MARKING, AND STAINING WHICH COMPRISES THE STEPS OF COATING THE SURFACE WITH THE COMPOSITION OF THIS INVENTION AND CURING THE COATING SO AS TO RENDER IT SUBSTANTIALLY WATER INSOLUBLE. A COMPOSITE ARTICLE COMPRISING A LAYER OF METAL AND AT LEAST ONE LAYER OF A SUBSTANTIALLY WATER INSOLUBLE, TRANSPARENT, CURED COATING WHICH OFFERS PROTECTION FROM MARRING, MARKING, AND STAINING. THE COATINGS IS COMPRISED OF ANIONIC POLYMERIC CHAINS OF PHOSPHORUS, CHROMIUM, OXYGEN, AND SILCON ATOMS WITH OR WITHOUT MAGNESIUM CATIONS.
Inventors
- 👤 Donald F Esler
- 👤 Edward G Choby Jr
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |