US3560231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of foamed aluminum salt-fiber compositions
Assignee: EIDP Inc
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Filing: 1967-12-22
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Granted: 1971-02-02
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Expires: 1987-12-22
Abstract
Abstract FOAMS OF BASIC ALUMINUM SALTS AND FIBROUS MATERIALS ARE PREPARED BY MIXING FROM 2 TO 40 WEIGHT PERCENT OF A WATER DISPERSIBLE POLYMERIC ALUMINUM SALT, SUCH AS BASIC ALUMINUM CHLORIDE, WITH WATER AND FROM 0.02 TO 4 PERCENT OF AN ANIONIC ORGANIC ACID COMPOUND CONTAINING FROM 6 TO 18 CARBON ATOMS PER ACID GROUP, SUCH AS SODIUM LAURYL SULFATE, AND FROM 2 TO 10 PARTS BY WEIGHT, BASED ON THE WEIGHT OF BASIC ALUMINUM SALT, OF MACROFIBROUS MATERIAL SUCH AS WOOD PULP AND FOAMING THE MIXTURE. THE RESULTING FOAMS DRY TO FORM RIGID STRONG LOW-DENSITY STRUCTURES.
Inventors
- 👤 Earl P Moore Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:32
CPC Classifications
C; C04; C04B; C04B24/00; C04B24/16; C04B24/20; C04B24/04; C04B24/12; C04B24/14; C04B28/00
Claims Analysis
Total Claims: 0
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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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |