US3726862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aziridinyl compounds
Assignee: Dow Chemical Co
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Filing: 1966-10-03
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Granted: 1973-04-10
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Expires: 1986-10-03
Abstract
Abstract DI, TRI, AND TERA-(1-AZIRDINYL)ALYL ESTER OF CARBOXYLIC ACIDS (E.G., ADIPIC ACID, TEREPHTHALIC ACID, TRIMELLITIC ACID, TRIMESIC ACID, PYROMELLITIC ACID, CITRIC ACID, ETC.), USEFUL AS INHIBITORS FOR HALOALKANES AND AS CURING AGENTS FOR ACID TERMINATED POLYMERS ARE PREPARED BY REACTING AN AZIRDINYLALKYL ALCOHOL (E.G., 2-(1-AZIRIDINYL)ETHANOL) AND AN ESTER OF A DI-, TRI-, OR TETRACARBOXYLIC CID IN THE PRESENCE OF AN ALKALI METAL ALCOHOLATE.
Inventors
- 👤 W Coker
- 👤 P Phillips
- 👤 G Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:46
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/02; C23G5/028; C23G5/02854; C23G5/02883; C07; C07D; C07D203/00; C07D203/04; C07D203/06; C07D203/08; C07D203/10; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/141; C23F11/142
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) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |