US4297195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode for use in electrolysis and process for production thereof
Assignee: PERMELC ELECTRODE Ltd
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Filing: 1979-09-20
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Granted: 1981-10-27
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Expires: 1999-09-20
Abstract
Abstract An electrode for use in the electrolysis of an aqueous solution of a metal halide, the electrode comprising an electrically conductive substrate and, formed thereon, a coating comprising (1) 50 to 95 mole % of platinum and (2)(a) 5 to 50 mole % of tin oxide, or (b) 5 to 50 mole % of tin oxide and cobalt oxide, wherein the tin oxide is present in an amount of at least 5 mole % and the cobalt oxide is present in an amount up to 20 mole %; and a process for producing the above-described electrode.
Inventors
- 👤 Hideo Sato
- 👤 Takayuki Shimamune
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:23
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/04; C25B11/051; C25B11/073; C25B11/091; C25B11/093
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
100 words
An electrode for use in the electrolysis of an aqueous solution of a metal halide, said electrode comprising an electrically conductive substrate and, formed thereon, a coating comprising (1) 50 to 95 mole % of the platinum and (2) (a) 5 to 50 mole % of tin oxide, or (b) 5 to 50 mole % of tin oxide and cobalt oxide wherein the tin oxide is present in an amount of at least 5 mole % and the cobalt oxide is present in an amount up to 20 mole %, the total of (1) and (2) being 100 mole %.
Claim 2
Dependent Claim
100 words
An electrode for use in the electrolysis of an aqueous solution of a metal halide, said electrode comprising an electrically conductive substrate and, formed thereon, a coating comprising (1) 50 to 95 mole % of the platinum and (2) (a) 5 to 50 mole % of tin oxide, or (b) 5 to 50 mole % of tin oxide and cobalt oxide wherein the tin oxide is present in an amount of at least 5 mole % and the cobalt oxide is present in an amount up to 20 mole %, the total of (1) and (2) being 100 mole %.
Claim 3
Dependent Claim
16 words
The electrode of claim 1, wherein said coating consists essentially of said components (1) and (2).
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) | 1984-10-26 | 1985-04-27 | 1985-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-26 | 1989-04-27 | 1989-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-26 | 1993-04-27 | 1993-10-27 | $7700.00 | Window Closed / Lapsed |