US3654261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quaternary ammonium alkoxide alkoxy polyol compounds
Assignee: Unilever Bestfoods North America
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Filing: 1968-06-27
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Granted: 1972-04-04
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Expires: 1988-06-27
Abstract
Abstract COVERS EPOXY RESIN COMPOSITIONS DERIVED FROM REACTING AN UNCURED EPOXY RESIN AND AN EPOXY RESIN FLEXIBILIZE, COMPRISING A POLYOL QUATERNARY AMMONIUM ALKOXIDE, PREFERABLY IN PRESENCE OF A CURING AGENT, WHICH RESIN COMPOSITIONS HAVE DESIRED STRENGTH AND FLEXIBILITY AND RESISTANCE TO CHEMICAL AND SOLVENT ATTACK. ALSO COVERS CURED EPOXY RESIN COMPOSITIONS DERIVED FROM THE ABOVE COMBINATION OF INGREDIENTS. LASTLY, COVERS THE FLEXIBILIZER COMPOSITIONS THEMSELVES WHICH HAVE THE FOLLOWING STRUCTURAL FORMULA: R1-N(-R2)(-R4)-R3(+) O-R(-) WHERE R1, R2, R3 AND R4 ARE SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL, ARALKYL, CYCLOALKYL AND CYCLHETERYL AND R IS THE RESIDUE OF A POLYOL.
Inventors
- 👤 Calvin K Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:24
CPC Classifications
C; C08; C08L; C08L63/00
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) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |