Method of coating pressed vermiculite with a glaze composition
Abstract
Abstract THE INVENTION DISCLOSE PROVIDES A NOVEL GLAZE COMPOSITION COMPRISING AS ESSENTIAL COMPONENTS FROM ABOUT 18 TO ABOUT 30 PARTS BY WEIGHT OF BORON OXIDE, FROM ABOUT 35 TO ABOUT 55 PARTS BY WEIGHT OF SILICON DIOXIDE, FROM ABOUT 5 TO ABOUT 20 PARTS BY WEIGHT OF ALUMINUM OXIDE, FROM ABOUT 7 TO ABOUT 15 PARTS BY WEIGHT OF CALCIUM OXIDE FROM ABOUT 1.0 TO ABOUT 3.0 PARTS BY WEIGHT OF SODIUM OXIDE, FROM ABOUT 0.5 TO ABOUT 2.0 PARTS BY WEIGHT OF POTASSIUM OXIDE, FROM ABOUT 1.0 TO ABOUT 8 PARTS BY WEIGHT OF ZINC OXIDE. WHEN FIRED AS A COATING ON A PRESSED VERMICULITE BODY, THE GLAZE COMPONENTS FUSE TO FORM A GLAZE COATED ARTICLE WHICH, AFTER COOLING, TYPICALLY HAS INCREASED STRENGTH, EXCELLENT HARDNESS, AND IMPROVED RESISTANCE TO MOISTURE PERMEATIONL. THE GLAZED ARTICLE IS ES- PECIALLY USEFUL IN THE FORM OF A PANEL FOR INTERIOR OR EXTERIOR CONSTRUCTION.
Inventors
- 👤 P Brown
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
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