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US4849085A
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Anodes for electrolyses
Assignee: Novartis Corp
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Filing: 1987-04-22
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Granted: 1989-07-18
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Expires: 2007-04-22
Abstract
Abstract An anode for aqueous electrolyses, consisting of a frame or support and a porous substrate which is connected to the frame and in which electrochemically active substances are dispersed. The substrate consists of titanium which is doped with chromium or nickel.
Inventors
- 👤 Heiner Debrodt
- 👤 Petra Kluger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:53
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/02; C25B11/03; C25B11/031; C25B11/04; C25B11/051; C25B11/073; C25B11/091
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
84 words
An anode for aqueous electrolyses, consisting of a frame which is resistant to the electrolyte and to the electrolysis products, a titanium porous substrate coated on the frame, and electrochemically active substances which are distributed in the pores of the substrate, wherein the porous titanium substrate is doped with a metal selected from the group consisting of chromium and nickel, the level of dopant is 0.5 to 40% by weight of the substrate and the thickness of the substrate is 0.2 to 1 mm.
Claim 2
Dependent Claim
84 words
An anode for aqueous electrolyses, consisting of a frame which is resistant to the electrolyte and to the electrolysis products, a titanium porous substrate coated on the frame, and electrochemically active substances which are distributed in the pores of the substrate, wherein the porous titanium substrate is doped with a metal selected from the group consisting of chromium and nickel, the level of dopant is 0.5 to 40% by weight of the substrate and the thickness of the substrate is 0.2 to 1 mm.
Claim 3
Dependent Claim
22 words
An anode as claimed in claim 1, wherein the amount of the doping elements is 2 to 20% by weight of substrate.
Claim 4
Dependent Claim
19 words
An anode as claimed in claim 2 wherein the porous substrate has a porosity of 20 to 60 volume-%.
Claim 5
Dependent Claim
19 words
An anode as claimed in claim 1 wherein the porous substrate has a porosity of 20 to 60 volume-%.
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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) | 1992-07-17 | 1993-01-16 | 1993-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-17 | 1997-01-16 | 1997-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-17 | 2001-01-16 | 2001-07-18 | $7700.00 | Window Closed / Lapsed |