US3984591A
Expired / Lapsed
US
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Process for forming a metallic oxide coating
Assignee: Glaverbel Mecaniver SA
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Filing: 1973-12-19
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Granted: 1976-10-05
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Expires: 1993-12-19
Abstract
Abstract A metallic oxide coating is formed on a substrate which may be vitreous, partially vitreous or nonvitreous by applying to the substrate a solution of one or more metallic salts selected from the group of the acetates, halides and nitrates in an aprotic solvent having a dielectric constant greater than 15 and a dipolar moment greater then 3D. The substrate and applied solution are then subjected to heat to convert in situ the metallic salt to form a coating comprising at least one metallic oxide.
Inventors
- 👤 Emile Plumat
- 👤 Robert Posset
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:19
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/25; C09; C09C; C09C3/00; C09C3/06; C09C3/063; C01; C01P; C01P2006/00; C01P2006/42; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/229; C03C2217/23; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/112
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
106 words
In a method of forming a metallic oxide coating on a substrate by applying at least one metal compound to the substrate and thermally converting said compound to a metal oxide coating, the improvement comprising the steps of applying to the substrate by spraying a solution of one or more metallic salts selected from the group of the acetates, halides and nitrates dissolved in an aprotic solvent having a dielectric constant greater than 15 and a dipolar moment greater than 3D, and subjecting the resultant substrate to heat sufficient to convert the metallic salt in situ to form a coating comprising at least one metallic oxide.
Claim 2
Dependent Claim
106 words
In a method of forming a metallic oxide coating on a substrate by applying at least one metal compound to the substrate and thermally converting said compound to a metal oxide coating, the improvement comprising the steps of applying to the substrate by spraying a solution of one or more metallic salts selected from the group of the acetates, halides and nitrates dissolved in an aprotic solvent having a dielectric constant greater than 15 and a dipolar moment greater than 3D, and subjecting the resultant substrate to heat sufficient to convert the metallic salt in situ to form a coating comprising at least one metallic oxide.
Claim 3
Dependent Claim
29 words
A method according to claim 1 wherein preheating the substrate to a sufficiently high temperature such as to provide the heat to effect the conversion of the metallic compound.
Claim 4
Dependent Claim
20 words
A method according to claim 2 wherein the substrate surface to be coated reaches a temperature between 300° and 700°C.
Claim 5
Dependent Claim
16 words
A method according to claim 1 wherein the solution is applied in the form of droplets.
Claim 6
Dependent Claim
12 words
A method according to claim 1 wherein the solvent consists of dimethylformamide.
Claim 7
Dependent Claim
22 words
A method according to claim 1 wherein the solvent is dimethylformamide, tetramethyl urea, dimethylsulphoxide, acetonitrile, nitribenzene, ethylene carbonate, tetramethylene sulphone, or hexamethylphosphoramide.
Claim 8
Dependent Claim
49 words
A method according to claim 1 wherein the solution applied to the substrate comprises one or more acetates, halides or nitrates of a metal or a plurality of metals of Mg, Zr, V, Cr, W, Mn, Fe, Co, Ni, Cu, Zn, Cd, In, Sn, Pb, Bi, Th, or Si.
Claim 9
Dependent Claim
82 words
A method according to claim 1 wherein the solution applied to the substrate comprises one or more acetates, halides or nitrates of a metal or of a plurality of metals of Mg, Zr, V, Cr, W, Mn, Fe, Co, Ni, Cu, Zn, Cd, In, Sn, Pb, Bi, Th, or Si, in mixture with one or more acetates, halides or nitrates of a metal or of a plurality of metals selected from the group: Au, Ti, Ce, Mo, Sb, Al, As, or Rh.
Claim 10
Dependent Claim
13 words
A method according to claim 1 wherein acetylacetone is added to the solution.
Claim 11
Dependent Claim
48 words
A method according to claim 9 wherein the proportion of acetylacetone is such that the quantity of acetylacetone is of the order of n times the number of moles of metallic salt used where n represents the valence or the aggregate of the valences of the metallic cations.
Claim 12
Dependent Claim
14 words
A method according to claim 1 wherein the substrate is at least partially vitreous.
Claim 13
Dependent Claim
16 words
A method according to claim 11 wherein the formed metallic oxide coating is transparent to light.
Claim 14
Dependent Claim
20 words
A method according to claim 1 wherein the substrate is in the form of a continuous ribbon of flat glass.
Claim 15
Dependent Claim
29 words
A method according to claim 13 wherein the solution is applied to the glass ribbon at a place where the temperature of said ribbon is between 450° and 650°C.
Claim 16
Dependent Claim
24 words
A method according to claim 1 wherein the solution is formed wholly or in part from one or more tin chlorides hydrated or anhydrous.
Claim 17
Dependent Claim
14 words
A method according to claim 15 wherein the formed oxide coating has antistatic properties.
Claim 18
Dependent Claim
18 words
A method according to claim 16 wherein the coating has a thickness of the order of 200-800 A.
Claim 19
Dependent Claim
81 words
An article of manufacture comprising a substrate having a metallic oxide coating thereon formed by applying to the substrate a solution of one or more metallic salts selected from the group of the acetates, halides and nitrates in an aprotic solvent having a dielectric constant greater than 15 and a dipolar moment greater than 3D, and subjecting the substrate and applied solution to heat to convert the metallic salt in situ to form a coating comprising at least one metallic oxide.
Claim 20
Dependent Claim
81 words
An article of manufacture comprising a substrate having a metallic oxide coating thereon formed by applying to the substrate a solution of one or more metallic salts selected from the group of the acetates, halides and nitrates in an aprotic solvent having a dielectric constant greater than 15 and a dipolar moment greater than 3D, and subjecting the substrate and applied solution to heat to convert the metallic salt in situ to form a coating comprising at least one metallic oxide.
Claim 21
Dependent Claim
17 words
An article of manufacture as claimed in claim 18 wherein said substrate is vitreous or partially vitreous.
Claim 22
Dependent Claim
14 words
An article of manufacture as claimed in claim 18 wherein said substrate is nonvitreous.
References Cited (Backward Citations)
US3107177A
Cited
US3519467A
Cited
US3705054A
Cited
US3652246A
Cited
US3711322A
Cited
US3754975A
Cited
US3850665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-05 | 1980-04-05 | 1980-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-05 | 1984-04-05 | 1984-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-05 | 1988-04-05 | 1988-10-05 | $7700.00 | Window Closed / Lapsed |