US4668354A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrocatalytic deposition of metals in solid polymeric matrices
Assignee: EIDP Inc
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Filing: 1986-08-29
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Granted: 1987-05-26
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Expires: 2006-08-29
Abstract
Abstract A process for depositing metal in the form of an interlayer within a solid matrix. The process is characterized in the use of electroactive transfer agents to carry electrons from the cathode to the desired locus within the matrix where the metal cation (M n+ ) is reduced to its zero-valent state. Also disclosed are composites of metallic-interlayer-containing matrices.
Inventors
- 👤 Moshe Levy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:12
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/54; C25D5/56; H; H05; H05K; H05K3/00; H05K3/10; H05K3/18; H05K3/181; C25C; C25C1/00; H05K2201/00; H05K2201/01; H05K2201/0104; H05K2201/0116
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
105 words
A process for controlled deposition of metal in a matrix, comprising the steps of: (i) providing an environment within the matrix for electron transfer by an electron transfer agent, (ii) providing the matrix with an electrical circuit source of electrons for transfer within the matrix by the electron transfer agent, (iii) contacting the matrix with an electron transfer agent to carry the electrons of step (ii) within the matrix, (iv) contacting the matrix with metal ions reducible to zero-valent metal upon contact with electrons, and (v) reducing the metal ions of step (iv) by contacting them with the electron-carrying electron transfer agent of step (iii).
Claim 2
Dependent Claim
105 words
A process for controlled deposition of metal in a matrix, comprising the steps of: (i) providing an environment within the matrix for electron transfer by an electron transfer agent, (ii) providing the matrix with an electrical circuit source of electrons for transfer within the matrix by the electron transfer agent, (iii) contacting the matrix with an electron transfer agent to carry the electrons of step (ii) within the matrix, (iv) contacting the matrix with metal ions reducible to zero-valent metal upon contact with electrons, and (v) reducing the metal ions of step (iv) by contacting them with the electron-carrying electron transfer agent of step (iii).
Claim 3
Dependent Claim
115 words
A process according to claim 1 wherein the matrix is a swellable organic polymer, comprising the steps of: (i) swelling the polymer to provide an environment within the polymer for electron transfer by an electron transfer agent, (ii) providing the swelled polymer with an electrical circuit source of electrons for transfer within the polymer by electron transfer agent, (iii) contacting the swelled polymer with an electron transfer agent to carry the electrons of step (ii) within the polymer, (iv) contacting the swelled polymer with metal ions reducible to zero-valent metal upon contact with electrons, and (v) reducing the metal ions of step (iv) by contacting them with the electron-carrying electron transfer agent of step (iii).
Claim 4
Dependent Claim
30 words
A process of claim 2 in which the polymer is selected from at least one member of the group vinyl polymers, polyolefins, polyacrylates, polyesters, polyimides, polysiloxanes, tetrafluoroethylene-containing copolymers, and cellulose.
Claim 5
Dependent Claim
26 words
A process according to claim 3 in which the polymer is selected from at least one member of the group polyvinylchloride, polyvinylfluoride, polyvinylidene fluoride and cellulose.
Claim 6
Dependent Claim
29 words
A process according to claim 4 in which the electron transfer agent is selected from at least one member of the group quinones, quinone derivatives, imides, and pyridinium salts.
Claim 7
Dependent Claim
34 words
A process according to claim 5 in which the electron transfer agent is selected from at least one member of the group benzoquinone, naphthoquinone, anthraquinone, benzil, anthrone, fluorenone, diamyl pyromellitimide and N-methyl(methyl nicotinate) salt.
Claim 8
Dependent Claim
15 words
A process according to claim 2 in which the polymer matrix comprises a polymer blend.
Claim 9
Dependent Claim
29 words
A process according to claim 7 in which the electron transfer agent is selected from the group benzoquinone, naphthoquinone, anthraquinone, benzil, anthrone, fluorenone, diamyl pyromellitimide and N-methyl(methyl nicotinate) salt.
Claim 10
Dependent Claim
38 words
A process according to claim 1 in which the metal is selected from at least one member of the group Ag, Cu, Au, Cd, Hg, Cr, Co, Ni, Pd, Pt, Pb, Sn, Fe, Li, Na, K and Mg.
Claim 11
Dependent Claim
38 words
A process according to claim 2 in which the metal is selected from at least one member of the group Ag, Cu, Au, Cd, Hg, Cr, Co, Ni, Pd, Pt, Pb, Sn, Fe, Li, Na, K and Mg.
Claim 12
Dependent Claim
25 words
A process according to claim 9 in which the metal is selected from at least one member of the group Ag, Hg, Cu and Ni.
Claim 13
Dependent Claim
25 words
A process according to claim 10 in which the metal is selected from at least one member of the group Ag, Hg, Cu and Ni.
Claim 14
Dependent Claim
17 words
A process according to claim 1 wherein the metal interlayer extends to the surface of the matrix.
Claim 15
Dependent Claim
15 words
A process according to claim 2 wherein the metal interlayer extends to the polymer surface.
Claim 16
Dependent Claim
19 words
A process according to claim 2 wherein the thickness of the polymer matrix is about 2 to 100 μm.
Claim 17
Dependent Claim
19 words
A process according to claim 5 wherein the thickness of the polymer matrix is about 2 to 100 μm.
Claim 18
Dependent Claim
19 words
A process according to claim 7 wherein the thickness of the polymer matrix is about 2 to 100 μm.
Claim 19
Dependent Claim
19 words
A process according to claim 15 wherein the thickness of the metal interlayer is about 0.05 to 10 μm.
References Cited (Backward Citations)
US4512855A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-25 | 1990-11-24 | 1991-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-25 | 1994-11-24 | 1995-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-25 | 1998-11-24 | 1999-05-26 | $7700.00 | Window Closed / Lapsed |