US3746733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cobalt ii halide hydrazine complexes
Assignee: Individual
•
Filing: 1971-09-16
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Granted: 1973-07-17
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Expires: 1991-09-16
Abstract
Abstract COBALT (11) HALIDE TRIHYDRAZINATES OF THE FORMULA (CO(11)(R-NH-NH2)3X2 ARE PREPARED AS WELL AS COBALT (11) HALIDE TRIS (HYDRAZINE HYDROCHLORIDE) COMPLEXES OF THE FORMULA (CO(11)(N2H4.HX)3)X2 WHERE R IS H, ALKYL, ARYL, HALOARYL AND X IS HALOGEN. THE COMPOUNDS ARE USEFUL AS DRIERS FOR ALKYD RESINS AND TO ACCELERATE THE OXIDATIVE POLYMERIZATION OF OLEFINIC POLYMER SYSTEMS, PARTICULARLY UNSATURATED POLYESTERS, IN CONJUNCTION WITH ORGANIC PEROXIDES AND AS PROMOTERS FOR KETONE ALDOL CONDENSATION. HNOWN CO 11 COMPLEXES OF THE FORMULA (CO(11)(R-NH-NH2)2)X2 ALSO HAVE THESE SAME USES.
Inventors
- 👤 C Stapfer
- 👤 Andrea R D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:38
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/91; C08G63/914; C07; C07F; C07F15/00; C07F15/06; C07F15/065; C08F; C08F283/00; C08F283/01
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |