Patent EP0555073A1 successfully refreshed from Google Patents.
US4670189A
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Electrically conducting material and process of preparing same
Assignee: Nihon Sanmo Dyeing Co Ltd
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Filing: 1985-05-22
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Granted: 1987-06-02
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Expires: 2005-05-22
Abstract
Abstract An electrically conducting material including a cyanic group-containing substrate material and adsorbed sulfides of copper and an auxiliary metal selected from silver, gold and elements of the platinum group. The cyanic group-containing substrate may be in the form of powder or a shaped body such as a fiber, film, plate, rod or like. Suitable substrates include synthetic polymers such as polyacrylonitrile and polyamides having cyanic groups; naturally occurring polymeric substances such as cotton having introduced thereinto cyanic groups; and low molecular weight compounds such as phthalonitrile. The electrically conducting material may be prepared by treating the cyanic group-containing substrate with (a) a source of monovalent copper ions, (b) a source of ions containing the auxiliary metal and (c) a sulfur-containing compound to form sulfides of copper and the auxiliary metal adsorbed by the cyanic group-containing material.
Inventors
- 👤 Shinji Tomibe
- 👤 Norio Murasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:21
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/83; H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/122; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2958
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
121 words
A process for the preparation of an electrically conducting material, said process comprising: (a) providing a cyanic group-containing material selected from the group consisting of organic polymers, phthalonitrile, isophthalonitrile, N-cyanomethyl aniline and N-β-cyanoethylaniline; (b) treating said cyanic group-containing material with a source of monovalent copper ions to absorb said copper on said cyano group containing material; (c) treating said cyanic group-containing material with a source of ions containing an auxiliary metal selected from the group consisting of silver, gold and elements of the platinum group; and (d) simultaneous with or subsequent to step (b), treating said cyanic group-containing material with a sulfur-containing compound, whereby sulfides of copper and the auxiliary metal are formed and are adsorbed by the cyanic group-containing material.
Claim 2
Dependent Claim
121 words
A process for the preparation of an electrically conducting material, said process comprising: (a) providing a cyanic group-containing material selected from the group consisting of organic polymers, phthalonitrile, isophthalonitrile, N-cyanomethyl aniline and N-β-cyanoethylaniline; (b) treating said cyanic group-containing material with a source of monovalent copper ions to absorb said copper on said cyano group containing material; (c) treating said cyanic group-containing material with a source of ions containing an auxiliary metal selected from the group consisting of silver, gold and elements of the platinum group; and (d) simultaneous with or subsequent to step (b), treating said cyanic group-containing material with a sulfur-containing compound, whereby sulfides of copper and the auxiliary metal are formed and are adsorbed by the cyanic group-containing material.
Claim 3
Dependent Claim
29 words
A process as claimed in claim 1, wherein the treatment with component (a) is simultaneous with the treatment with component (b) and prior to the treatment with component (c).
Claim 4
Dependent Claim
33 words
A process as claimed in claim 1, wherein the treatment with component (b) is simultaneous with the treatment with component (c) and is separate from and subsequent to the treatment with component (a).
Claim 5
Dependent Claim
22 words
A process as claimed in claim 1, wherein the treatment with components (a), (b) and (c) is within the same treating bath.
Claim 6
Dependent Claim
35 words
A process as claimed in claim 1, wherein said source of monovalent copper ions is a combination of a copper compound and a reducing agent capable of reducing bivalent copper ions into monovalent copper ions.
Claim 7
Dependent Claim
36 words
A process as claimed in claim 5, wherein said reducing agent is selected from the group consisting of metallic copper, hydroxylamine, a salt of hydroxylamine, ferrous sulfate, ammonium vanadate, furfural, sodium hypophosphite, glucose and mixtures thereof.
Claim 8
Dependent Claim
48 words
A process as claimed in claim 1, wherein said sulfur-containing compound is selected from the group consisting of sodium sulfide, sulfur dioxide, sodium hydrogen sulfite, sodium pyrosulfite, sulfurous acid, dithionous acid, sodium dithionite, sodium thiosulfate, thiourea dioxide, hydrogen sulfide, sodium formaldehyde sulphoxylate, zinc formaldehyde sulphoxylate and mixtures thereof.
Claim 9
Independent Claim
60 words
A method of improving the stability of the electrical conductivity of a copper sulfide-carrying, cyanic group-containing selected from the group consisting of organic polymers, phthalonitrile, isophthalonitrile, N-cyanomethyl aniline and N-β-cyanoethylaniline material, comprising treating said cyanic group-containing material with a source of ions containing an auxiliary metal selected from the group consisting of silver, gold and elements of the platinum group.
Claim 10
Independent Claim
60 words
A method of improving the stability of the electrical conductivity of a copper sulfide-carrying, cyanic group-containing selected from the group consisting of organic polymers, phthalonitrile, isophthalonitrile, N-cyanomethyl aniline and N-β-cyanoethylaniline material, comprising treating said cyanic group-containing material with a source of ions containing an auxiliary metal selected from the group consisting of silver, gold and elements of the platinum group.
Claim 11
Dependent Claim
19 words
A method as claimed in claim 8, wherein said treatment is conducted in the presence of a sulfur-containing compound.
Claim 12
Dependent Claim
19 words
A method as claimed in claim 8, wherein said treatment is followed by a treatment with a sulfur-containing compound.
Claim 13
Dependent Claim
48 words
A method as claimed in claim 9, wherein said sulfur-containing compound is selected from the group consisting of sodium sulfide, sulfur dioxide, sodium hydrogen sulfite, sodium pyrosulfite, sulfurous acid, dithionous acid, sodium dithionite, sodium thiosulfate, thiourea dioxide, hydrogen sulfide, sodium formaldehyde sulphoxylate, zinc formaldehyde sulphoxylate and mixtures thereof.
Claim 14
Dependent Claim
9 words
The product produced by the process of claim 1.
Claim 15
Dependent Claim
9 words
The product produced by the process of claim 8.
References Cited (Backward Citations)
FR644429A
Cited
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