Patent US4152386A successfully refreshed from Google Patents.
US4152386A
Expired / Lapsed
US
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Method for the production of superconductors consisting of a polymer of glass matrix with finely dispersed particles
Assignee: Battelle-Institut
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Filing: 1977-04-14
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Granted: 1979-05-01
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Expires: 1997-04-14
Abstract
Abstract A method is disclosed for the production of superconductors consisting of a polymer or glass matrix which contains a very fine dispersion of superconducting particles, approximately 50 to 100 A in diameter, of intermetallic compounds of vanadium or niobium with the elements aluminum, germanium, silicon, gallium or tin, or of niobium nitride or niobium carbonitride. The matrix material is first brought into a viscous state and the superconducting particles are admixed with the viscous matrix in such quantities that, after solidification of the matrix, the particles are spaced at an average distance of 10 to 100 A. The superconducting material may be then formed in wires, filaments and tapes.
Inventors
- 👤 Heinrich Winter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:14
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/01; H10N60/0241; H10N60/0184; Y; Y10; Y10S; Y10S505/00; Y10S505/80; Y10S505/801; Y10S505/802; Y10S505/815; Y10S505/822
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
100 words
A method for the production of superconductors consisting of a polymer or glass matrix with incorporated finely dispersed superconducting particles, about 50 to 1000 A in diameter, of intermetallic compounds of vanadium or niobium with the elements of aluminium, germanium, silicon, gallium or tin or of niobium nitride or niobium carbonitride, comprising the steps of: (a) converting the matrix material into a viscous state; and (b) admixing superconducting particles to this viscous matrix in such quantities that after solidification of the matrix material the incorporated particles are spaced at a mean distance of the order of 10 to 100 A.
Claim 2
Independent Claim
100 words
A method for the production of superconductors consisting of a polymer or glass matrix with incorporated finely dispersed superconducting particles, about 50 to 1000 A in diameter, of intermetallic compounds of vanadium or niobium with the elements of aluminium, germanium, silicon, gallium or tin or of niobium nitride or niobium carbonitride, comprising the steps of: (a) converting the matrix material into a viscous state; and (b) admixing superconducting particles to this viscous matrix in such quantities that after solidification of the matrix material the incorporated particles are spaced at a mean distance of the order of 10 to 100 A.
Claim 3
Dependent Claim
27 words
A method according to claim 1, wherein the matrix material is a polymer and the particles are suspended in a solvent for admixture to the viscous polymer.
Claim 4
Dependent Claim
27 words
A method according to claim 2, comprising the further steps of depositing the viscous polymer with the incorporated particles on a carrier, and causing it to solidify.
Claim 5
Dependent Claim
23 words
A method according to claim 3, comprising the further step of admixing additional metal particles to the viscous polymer with the incorporated particles.
Claim 6
Dependent Claim
26 words
A method according to claim 1 comprising the additional step of adding a wetting agent to enhance the uniform distribution of the particles in the matrix.
Claim 7
Dependent Claim
24 words
A method according to claim 1 wherein the matrix material is a plastic on the basis of an olefin polymer or a butadiene polymer.
Claim 8
Dependent Claim
27 words
A method according to claim 6 wherein the plastic is selected from the group consisting of polyethylene, ethylene-vinyl acetate, ethylene-ethyl acrylate, or a polyene such as trans-polyacetylene.
Claim 9
Dependent Claim
25 words
A method according to claim 3, comprising the step of depositing suspension of the superconducting particles on a carrier in the form of a lacquer.
Claim 10
Dependent Claim
22 words
A method according to claim 8, comprising the steps of alternating lacquer coatings with superconducting particles with lacquer coatings with metallic particles.
Claim 11
Dependent Claim
20 words
A method according to claim 8, wherein the lacquer coating contains suspended metallic particles in addition to the superconducting particles.
Claim 12
Dependent Claim
22 words
A method according to claim 8, wherein the lacquer coatings are continuously deposited on to a carrier film, e.g. a polyester film.
Claim 13
Dependent Claim
17 words
A method according to claim 5 wherein a fatty acid or paraffin is used as wetting agent.
Claim 14
Independent Claim
45 words
A method for producing filaments, film or strip from a superconducting material comprising the steps of converting the matrix material with incorporated superconducting particles into a viscous state, and forming filaments, films or strip from this mass and subsequently solidified by cooling or drying processes.
Claim 15
Independent Claim
45 words
A method for producing filaments, film or strip from a superconducting material comprising the steps of converting the matrix material with incorporated superconducting particles into a viscous state, and forming filaments, films or strip from this mass and subsequently solidified by cooling or drying processes.
Claim 16
Dependent Claim
31 words
A method according to claim 13, wherein the matrix material in powder form is intimately mixed with the superconducting particles, pressed and/or sintered before being processed into filaments, films or strip.
Claim 17
Dependent Claim
17 words
A method according to claim 13 wherein the matrix is converted into a viscous state by heating.
Claim 18
Dependent Claim
20 words
A method according to claim 13 wherein the matrix is converted into a viscous state by contacting with a solvent.
Claim 19
Dependent Claim
16 words
A method according to claim 13 wherein the filaments, film or strips are formed by spinning.
Claim 20
Dependent Claim
16 words
A method according to claim 13 wherein the filaments, films or strips are formed by drawing.
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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) | 1982-04-30 | 1982-10-30 | 1983-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-30 | 1986-10-30 | 1987-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-30 | 1990-10-30 | 1991-05-01 | $7700.00 | Window Closed / Lapsed |