US4882232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous metal structure and method of manufacturing of said structure
Assignee: FINANCIERE SORAPEC
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Filing: 1988-06-08
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Granted: 1989-11-21
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Expires: 2008-06-08
Abstract
Abstract A method of fabrication of porous metal structures as applicable to the manufacture of supports for electrodes, catalysts, filters or sound insulators. A porous structure is fabricated from a support consisting of a felt, a woven or reticulated structure in accordance with the following steps: (a) initial metallization of the support; (b) chemical and/or electrochemical metallization if so required; (c) removal of the support if necessary. The distinctive feature of the invention lies in the fact that the initial metallization step consists of metallization in vacuum.
Inventors
- 👤 Bernard Bugnet
- 👤 Denis Doniat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:44
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/72; H01M4/74; H01M4/747; C; C23; C23C; C23C18/00; C23C18/16; C23C18/1601; C23C18/1633; C23C18/1646; C23C18/1648; C23C18/18; C23C18/20; C23C18/2006; C23C18/2046; C23C18/2053; C23C18/206; C25; C25D; C25D1/00; C25D1/08; H01M4/80; H01M4/806; B; B01; B01J; B01J37/00; B01J37/34; B01J37/348; H01M4/808; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12479
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
126 words
A method of fabrication of a metallized porous structure from an organic porous support having a three-dimensional lattice network with an open pore volume higher than 80% which defines a plurality of pores substantially in communication with each other, which comprises the step of premetallizing said support under vacuo by cathode sputtering with a metal or alloy which is a member selected from the group consisting of platinum, platinum-base alloys, nickel, chromium, iron, copper, gold, silver, tin, aluminum, titanium, zinc, brass, bronze, a ferrochromium alloy and a mixture thereof, thereby depositing on said support a continuous layer of 0.05 micron to 1 micron of said metal or alloy and then applying at least one metal layer of copper or nickel by a chemical or electrochemical process.
Claim 2
Independent Claim
126 words
A method of fabrication of a metallized porous structure from an organic porous support having a three-dimensional lattice network with an open pore volume higher than 80% which defines a plurality of pores substantially in communication with each other, which comprises the step of premetallizing said support under vacuo by cathode sputtering with a metal or alloy which is a member selected from the group consisting of platinum, platinum-base alloys, nickel, chromium, iron, copper, gold, silver, tin, aluminum, titanium, zinc, brass, bronze, a ferrochromium alloy and a mixture thereof, thereby depositing on said support a continuous layer of 0.05 micron to 1 micron of said metal or alloy and then applying at least one metal layer of copper or nickel by a chemical or electrochemical process.
Claim 3
Dependent Claim
25 words
The method according to claim 1 wherein prior to the step of premetallizing, the pores of said support have been opened by an uncapping operation.
Claim 4
Dependent Claim
20 words
The method according to claim 1 wherein in said premetallizing step a layer of copper, nickel or brass is deposited.
Claim 5
Dependent Claim
26 words
The method according to claim 1 wherein the support is made of a synthetic polymer which is a polyester, a polyamide, a polyurethane or a polyether.
Claim 6
Dependent Claim
24 words
An electrode support for a nickel, cadmium, iron or lead electrode made of the metallized porous structure produced by the method of claim 1.
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) | 1992-11-20 | 1993-05-22 | 1993-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-20 | 1997-05-22 | 1997-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-20 | 2001-05-22 | 2001-11-21 | $7700.00 | Window Closed / Lapsed |