US3763070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic cement with polyisocyanate and aliphatic polyepoxide
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1971-05-21
•
Granted: 1973-10-02
•
Expires: 1991-05-21
Abstract
Abstract CEMENT COMPOSITIONS SUITABLE FOR FLOORING APPLICATIONS WHICH COMPRISE A HYDRAULIC CEMENT, A SILICA FILLER, WATER, AN ORGANIC POLYISOCYANATE AND A COMPOUND OR MIXTURE OF COMPOUNDS SELECTED FROM MONOHYDRIC ALCOHOLS, MONOCARBOXYLIC ACIDS HAVING A MOLECULAR WEIGHT OF AT LEAST 60 AND CERTAIN COMPOUNDS WHICH CONTAIN ON AVERAGE AT LEAST ONE EPOXY GROUP PER MOLECULE. THE PRESENCE OF THE ALCOHOLS, CARBOXYLIC ACIDS OR EPOXY COMPOUNDS DELAYS THE RATE OF SETTING OF THE COMPOSITIONS, THUS GIVING A LONGER WORKING TIME. CYCLIC EPOXY COMPOUNDS GIVE CURED PRODUCTS HAVING A VERY HIGH COMPRESSION STRENGTH.
Inventors
- 👤 H Shearing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:05
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/64; C08G18/6407; C04; C04B; C04B24/00; C04B24/02; C04B24/023; C04B28/00; C04B28/02; C08G18/08; C08G18/088; C08G18/0885; C08G18/2805; C08G18/30; C08G18/302; C08G18/58; C08K; C08K3/00; C08K3/34; C08K3/36; Y; Y10; Y10S; Y10S524/00; Y10S524/914
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |