Patent US3333973A successfully refreshed from Google Patents.
US3333973A
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Alkali metal silicate coating compositions
Assignee: Celanese Coatings Co
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Filing: 1964-05-05
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Granted: 1967-08-01
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Expires: 1984-05-05
Abstract
No abstract record available.
Inventors
- 👤 Freiman Aaron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:03
CPC Classifications
C; C04; C04B; C04B24/00; C04B24/12; C04B24/124; C04B28/00; C04B28/24; C04B28/26; C09; C09C; C09C1/00; C09C1/28; C09D; C09D5/00; C09D5/08; C09D5/10; C09D5/106; C01; C01P; C01P2004/00; C01P2004/80; C01P2004/82; C01P2004/84; C04B2111/00; C04B2111/00474; C04B2111/00482
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
AN AQUEOUS ALKALI METAL SILICATE COATING COMPOSITION CONTAINING COMMINUTED ZINC AND HAVING A POT LIFE OF AT LEAST 16 HOURS COMPRISING: (A) AN AQUEOUS SOLUTION OF SODIUM SILICATE, POTASSIUM SILICATE OR MIXTURES THEREOF, WHEREIN THE RATIO OF NA2O TO SIO2 IN THE SODIUM SILICATE IS BETWEEN ABOUT 1:25 AND 1:3975 AND THE RATIO OF K2OTOSIO2 IN THE POTASSIUM SILICATE IS BETWEEN ABOUT 1:2 AND 1:2.5; (B) COMMINUTED ZINC METAL IN THE AMOUNT OF ABOUT 5 TO 25 PARTS BY WEIGHT OF ZINC TO 1 PART BY WEIGHT OF ALKALI METAL SILICATE; AND (C) AS AN INDURATING AGENT AN ACID AMIDE SELECTED FROM THE GROUP CONSISTING OF OXAMIDE, SUCCINAMIDE AND ADIPAMIDE, SAID AMIDE BEING PRESENT IN AN AMOUNT SUFFICIENT ON HYDROLYSIS TO RENDER THE COMPOSITION INSOLUBLE.
Claim 2
Dependent Claim
125 words
AN AQUEOUS ALKALI METAL SILICATE COATING COMPOSITION CONTAINING COMMINUTED ZINC AND HAVING A POT LIFE OF AT LEAST 16 HOURS COMPRISING: (A) AN AQUEOUS SOLUTION OF SODIUM SILICATE, POTASSIUM SILICATE OR MIXTURES THEREOF, WHEREIN THE RATIO OF NA2O TO SIO2 IN THE SODIUM SILICATE IS BETWEEN ABOUT 1:25 AND 1:3975 AND THE RATIO OF K2OTOSIO2 IN THE POTASSIUM SILICATE IS BETWEEN ABOUT 1:2 AND 1:2.5; (B) COMMINUTED ZINC METAL IN THE AMOUNT OF ABOUT 5 TO 25 PARTS BY WEIGHT OF ZINC TO 1 PART BY WEIGHT OF ALKALI METAL SILICATE; AND (C) AS AN INDURATING AGENT AN ACID AMIDE SELECTED FROM THE GROUP CONSISTING OF OXAMIDE, SUCCINAMIDE AND ADIPAMIDE, SAID AMIDE BEING PRESENT IN AN AMOUNT SUFFICIENT ON HYDROLYSIS TO RENDER THE COMPOSITION INSOLUBLE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |