Flame-proof coating composition
Abstract
Abstract A COATING COMPOSITION COMPRISING (A) AN AT LEAST PARTIALLY HYDROLYZED TETRAALKYL ORTHOSILICATE, (B) ALUMINUM OXIDE, (C) TITANIUM DIOXIDE, (D) SILICON DIOXIDE, AND (E) A SUSPENSION AGENT, WHEREIN SAID TITANIUM DIOXIDE AND SAID SUSPENSION AGENT ARE ADDED TO THE COMPOSITION AS DRY PARTICLES HAVING AGGLOMERATES GREATER THAN ABOUT 1 MICRON IN SIZE, AND WHEREIN THE ALKALI METAL CONTENT OF SAID COATING COMPOSITION IS SUCH THAT, UPON CURING, A COATING PREPARED FROM SAID COMPOSITION CONTAINS (F) LESS THAN ABOUT 0.05% NA, (G) LESS THAN ABOUT 0.05K, (H) LESS THAN ABOUT 0.01% LI, (I) LESS THAN ABOUT 0.001% CS, AND (J) LESS THAN ABOUT 0.001% RB, ALL PERCENTAGES BEING IN TERMS OF THE OXIDES OF THE RESPECTIVE ALKALI METALS.
Inventors
- 👤 Lawrence G Bockstie 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) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |