US4514518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluoride-substituted cobalt spinels
Assignee: Dow Chemical Co
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Filing: 1982-04-22
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Granted: 1985-04-30
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Expires: 2002-04-22
Abstract
Abstract A new and useful family of compounds is prepared by fluoride substitution into a cobalt oxide spinel, the new compounds conforming substantially to the empirical formula Co3OxFy or M1'M2''-MinCo(3- SIGMA )OxFy, where x+2y SIMILAR 4, where y is an amount such that F</=2 wt. % of the compound, and where M1, M2, and Mi each represent metal values other than Co. Thus the cobalt oxide spinel may be a single-metal spinel, a bimetal spinel, a trimetal spinel, or a polymetal spinel.
Inventors
- 👤 Walter W. Henslee
- 👤 Stephen I. Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:29
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C01; C01G; C01G49/00; C01G49/0018; C03; C03C; C03C17/00; C03C17/22; C04B41/45; C04B41/50; C04B41/80; C04B41/81; C04B41/85; C25; C25B; C25B11/00; C25B11/04; C25B11/051; C25B11/073; C25B11/075; C25B11/077; C25B11/0771; C01P; C01P2002/00; C01P2002/30; C01P2002/32; C01P2002/50; C01P2002/52; C01P2002/70; C01P2002/77; C01P2004/00; C01P2004/80; C01P2004/82; C01P2004/84; C01P2006/00; C01P2006/80; C03C2217/00; C03C2217/20; C03C2217/29; C03C2218/00; C03C2218/10; C03C2218/11
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
50 words
The fluoride-substituted cobalt spinel compounds conforming substantially to the formula Co 3 O x F y , where x+2y≅4 and where y is an amount, not zero, such that F≦2 weight percent of the compound, said cobalt oxide spinels being characterized as being substantially unstable at temperatures above 600° C.
Claim 2
Dependent Claim
50 words
The fluoride-substituted cobalt spinel compounds conforming substantially to the formula Co 3 O x F y , where x+2y≅4 and where y is an amount, not zero, such that F≦2 weight percent of the compound, said cobalt oxide spinels being characterized as being substantially unstable at temperatures above 600° C.
Claim 3
Dependent Claim
11 words
The spinels of claim 1 when coated onto an electroconductive substrate.
Claim 4
Dependent Claim
10 words
The spinels of claim 1 when coated onto particulate matter.
Claim 5
Dependent Claim
14 words
The spinels of claim 1 when coated onto ceramic, glass, metal, or refractory particles.
Claim 6
Dependent Claim
10 words
The spinels of claim 1 when coated onto alumina pellets.
Claim 7
Dependent Claim
11 words
The spinels of claim 1 when coated onto a titanium substrate.
Claim 8
Dependent Claim
7 words
The spinels of claim 1 when pellitized.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-29 | 1988-10-29 | 1989-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-29 | 1992-10-29 | 1993-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-29 | 1996-10-29 | 1997-04-30 | $7700.00 | Window Closed / Lapsed |