US3565861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amine complexes of pf5,asf5,and sbf5 as latent curing agents for epoxy resins
Assignee: Ozark-Mahoning Co
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Filing: 1969-04-30
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Granted: 1971-02-23
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Expires: 1989-04-30
Abstract
Abstract A LATENTLY CURABLE COMPOSITION AND PROCESS FOR CURING SAME TO A CROSS-LINKED ETHOXYLINE COMPOSITION. THE LATENTLY CURABLE COMPOSITION CONSISTING OF A COMPLEX OF PHOSPHOROUS PENTAFLUORIDE, ARSENIC PENTAFLUORIDE, OR ANTIMONY PENTAFLUORIDE WITH A PRIMARY ARYLIC ALIPHATIC AMINE HAVING FROM ONE TO EIGHTEEN CARBON ATOMS AND A GLYCIDYL ETHER POLYEPOXIDE OR A 1,2-EPOXY-SUBSTITUTED CYCLOALIPHATIC POLYEPOXIDE. THE PROCESS INCLUDING POLYMERIZING THE LATENTLY CURABLE COMPOSITION WITH THE ADDITION OF HEAT TO FORM A CURED, CROSS-LINKED ETHOXYLINE COMPOSITION.
Inventors
- 👤 Wayne E White
- 👤 Leslie C Case
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:57
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/5093; C08G59/68; C08G59/72
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |