US3586650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane resins prepared from alkoxylated glucose derivatives
Assignee: Unilever Bestfoods North America
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Filing: 1967-11-15
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Granted: 1971-06-22
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Expires: 1987-11-15
Abstract
Abstract COVERS POLYURETHANE RESINS. PARTICULARLY COVERS POLYURETHANE RESINS FORMED BY REACTING AN ORGANIC POLYISOCYANATE AND AN ALKOXYLATED MONOACETONE GLUCOSE OR ETHYLENE GLUCOSE HAVING A MOLECULAR WEIGHT RANGING FROM ABOUT 350 TO ABOUT 5000 AND A HYDROXYL NUMBER RANGING FROM ABOUT 40 TO ABOUT 500. THE RESINS MAY BE IN THE FORM OF COATINGS OR FOAMS, EITHER OR THE FLEXIBLE OR RIGID TYPE. ALSO COVERS A METHOD OF PREPARING THE ABOVE POLYURETHANES.
Inventors
- 👤 John P Gibbons
- 👤 Lawrence Wondolowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:43
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/487; C08G18/4883
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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |