US4253933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode substrate alloy for use in electrolysis
Assignee: De Nora Permelec Ltd
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Filing: 1979-09-13
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Granted: 1981-03-03
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Expires: 1999-09-13
Abstract
Abstract An alloy for use as a substrate of an electrode for use in electrolysis, the alloy comprising (1) titanium and (2) 0.05 to 10% by weight of (a) tantalum and (b) niobium, zirconium or mixtures thereof, where the tantalum is present in an amount of 0.01 to 9.99% by weight, with each % by weight being based on the weight of the alloy. The alloy can additionally contain (3) 0.001 to 1.5% by weight of at least one platinum-group metal selected from the group consisting of platinum, iridium, rhodium, ruthenium, palladium and osmium, with the % by weight being based on the weight of the alloy. The alloy of this invention is an excellent material to prepare a corrosion-resistant electrode substrate.
Inventors
- 👤 Hideo Sato
- 👤 Takayuki Shimamune
- 👤 Toshiki Goto
- 👤 Hideo Nitta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:12
CPC Classifications
C; C22; C22C; C22C14/00; C25; C25B; C25B11/00; C25B11/04; C25B11/051; C25B11/055; C25B11/057; C25B11/061; C25B11/063
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
64 words
An alloy for use as a substrate of an electrode for use in electrolysis, said alloy comprising (1) titanium and (2) 0.05 to 10% by weight of (a) tantalum and (b) niobium, zirconium or a mixture thereof, wherein the tantalum is present in an amount of 0.01 to 9.99% by weight, with each % by weight being based on the weight of the alloy.
Claim 2
Dependent Claim
64 words
An alloy for use as a substrate of an electrode for use in electrolysis, said alloy comprising (1) titanium and (2) 0.05 to 10% by weight of (a) tantalum and (b) niobium, zirconium or a mixture thereof, wherein the tantalum is present in an amount of 0.01 to 9.99% by weight, with each % by weight being based on the weight of the alloy.
Claim 3
Dependent Claim
48 words
The alloy of claim 1, wherein said alloy additionally contains (3) 0.001 to 1.5% by weight of at least one platinum-group metal selected from the group consisting of platinum, iridium, rhodium, ruthenium, palladium and osmium, with the % by weight being based on the weight of the alloy.
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) | 1984-03-02 | 1984-09-01 | 1985-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-02 | 1988-09-01 | 1989-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-02 | 1992-09-01 | 1993-03-03 | $7700.00 | Window Closed / Lapsed |