US3778283A
Expired / Lapsed
US
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Binders based on alkali metal silicates
Assignee: Henkel AG and Co KGaA
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Filing: 1972-02-28
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Granted: 1973-12-11
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Expires: 1992-02-28
Abstract
Abstract BINDES BASED ON AQUEOUS ALKALI METAL SILICATE SOLUTIONS COMPRISE AN ADMIXTURE OF TRIGLYCIDYLISOCYANUATE WITH AN EPOXIDE CONTENT OVER 14% BY WEIGHT, IN AMOUNTS FROM 0.03 TO 2.0% BY WEIGHT, BASED ON THE SOLID CONTENT OF THE ALKALI METAL SILICATE SOLUTION; WATER-SOLUBLE AMINES WHICH CONTAIN AT LEAST 2 ACTIVE HYDROGEN ATOMS, BOUND TO NITROGEN, IN AMOUNTS FROM 0.1 TO 5% BY WEIGHT, BASED ON THE SOLID CONTENT OF THE ALKALI METAL SILICATE SOLUTION; AND WATER-SOLUBLE QUATERNARY AND/OR POLYQUATERNARY NITROGEN COMPOUNDS IN AMOUNTS FROM 0.1 TO 5% BY WEIGHT, BASED ON THE SOLID CONTENT OF THE ALKALI METAL SILICATE SOLUTION.
Inventors
- 👤 Freyhold H Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:50
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/24; C04B28/26; C04B24/00; C04B24/12
Claims Analysis
Total Claims: 0
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References 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) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |