US5051278A
Expired / Lapsed
US
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Method of forming metal fluoride films by the decomposition of metallo-organic compounds in the presence of a fluorinating agent
Assignee: Eastman Kodak Co
•
Filing: 1989-07-10
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Granted: 1991-09-24
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Expires: 2009-07-10
Abstract
Abstract A method of forming a film of metal fluoride in which there is combined a metallo-organic compound solvent solution and an organic fluoride to form a casting liquid. The casting liquid is then coated by a method such as dip coating or spin coating to form a coating on a substrate. The coated substrate is then heated to decompose the metallo-organic compound and organic fluoride resulting in recovery of a metal fluoride coated substrate. The metal fluorides formed may be fluorides of lithium, sodium, potassium, magnesium, calcium, strontium, or barium, lanthanum, yttrium, or the oxifluoride of europium, erbium and other rare earths.
Inventors
- 👤 Gustavo R. Paz-Pujalt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:52
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/22; C03C2217/00; C03C2217/20; C03C2217/28; C03C2217/284; C03C2217/285; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/111; C03C2218/116
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
66 words
A method of forming a film of metal fluoride comprising combining a non-fluorine-containing metallo-organic compound, solvent, and a fluorinating agent to form a casting liquid, forming a coating of said casting liquid on a substrate, and heating said coating and said substrate wherein the metal of said metallo-organic compound comprises at least one of lithium, sodium, potassium, magnesium, calcium, strontium, barium, yttrium, europium, and rare earths.
Claim 2
Independent Claim
66 words
A method of forming a film of metal fluoride comprising combining a non-fluorine-containing metallo-organic compound, solvent, and a fluorinating agent to form a casting liquid, forming a coating of said casting liquid on a substrate, and heating said coating and said substrate wherein the metal of said metallo-organic compound comprises at least one of lithium, sodium, potassium, magnesium, calcium, strontium, barium, yttrium, europium, and rare earths.
Claim 3
Dependent Claim
29 words
The method of claim 1 wherein the metal of said metallo-organic compound comprises at least one of lithium, sodium, potassium, magnesium, calcium, strontium, barium, yttrium, europium, and rare earths.
Claim 4
Dependent Claim
13 words
The method of claim 1 wherein fluorinating agent comprises a fluorinated carboxylic acid.
Claim 5
Dependent Claim
13 words
The method of claim 3 wherein said fluorinated carboxylic acid comprises fluorobutyric acid.
Claim 6
Dependent Claim
25 words
The method of claim 1 wherein said fluorinating agent comprises at least one of trifluoroacetylacetone, heptafluoroacetylacetone, fluoroacetic acid, boron trifluoride, alkanoyl fluorides, and fluoroalkanoic anhydrides.
Claim 7
Dependent Claim
16 words
The method of claim 1 wherein said forming a coating comprises spin coating onto a substrate.
Claim 8
Dependent Claim
16 words
The method of claim 1 wherein said forming a coating comprises dip coating onto a substrate.
Claim 9
Dependent Claim
20 words
The method of claim 1 wherein said heating is to at least about 500° C. to form said metal fluoride.
Claim 10
Dependent Claim
11 words
The method of claim 1 wherein said substrate comprises a glass.
Claim 11
Dependent Claim
12 words
The method of claim 1 wherein said substrate comprises a laser crystal.
Claim 12
Dependent Claim
28 words
The method of claim 1 wherein said metallo-organic compound is selected from the group that consists essentially of a metal carboxylates, metal akoxides, metal acetylacetonates, and mixtures thereof.
Claim 13
Independent Claim
74 words
A method of forming a film of metal fluoride comprising combining a non-fluorine-containing metallo-organic compound comprising metal carboxylate, solvent, and a fluorinating agent to form a casting liquid, forming a coating of said casting liquid on a substrate, and heating said coating and said substrate to decompose said metallo-organic compound and decompose said fluorinating agent whereby the decomposition products of said metallo-organic compound and said fluorinating agent react to form a metal fluoride coating.
Claim 14
Independent Claim
74 words
A method of forming a film of metal fluoride comprising combining a non-fluorine-containing metallo-organic compound comprising metal carboxylate, solvent, and a fluorinating agent to form a casting liquid, forming a coating of said casting liquid on a substrate, and heating said coating and said substrate to decompose said metallo-organic compound and decompose said fluorinating agent whereby the decomposition products of said metallo-organic compound and said fluorinating agent react to form a metal fluoride coating.
Claim 15
Dependent Claim
29 words
The method of claim 12 wherein the metal of said metallo-organic compound comprises at least one of lithium, sodium, potassium, magnesium, calcium, strontium, barium, yttrium, europium, and rare earths.
Claim 16
Dependent Claim
13 words
The method of claim 12 wherein fluorinating agent comprises a fluorinated carboxylic acid.
Claim 17
Dependent Claim
13 words
The method of claim 14 wherein said fluorinated carboxylic acid comprises fluorobutyric acid.
Claim 18
Dependent Claim
25 words
The method of claim 12 wherein said fluorinating agent comprises at least one of trifluoroacetylacetone, heptafluoroacetylacetone, fluoroacetic acid, boron trifluoride, alkanoyl fluorides, and fluoroalkanoic anhydrides.
Claim 19
Dependent Claim
20 words
The method of claim 12 wherein said heating is to at least about 500° C. to form said metal fluoride.
Claim 20
Independent Claim
74 words
A method of forming a film of metal fluoride comprising combining a non-fluorine-containing metallo-organic compound comprising metal alkoxide, solvent, and a fluorinating agent to form a casting liquid, forming a coating of said casting liquid on a substrate, and heating said coating and said substrate to decompose said metallo-organic compound and decompose said fluorinating agent whereby the decomposition products of said metallo-organic compound and said fluorinating agent react to form a metal fluoride coating.
Claim 21
Independent Claim
74 words
A method of forming a film of metal fluoride comprising combining a non-fluorine-containing metallo-organic compound comprising metal alkoxide, solvent, and a fluorinating agent to form a casting liquid, forming a coating of said casting liquid on a substrate, and heating said coating and said substrate to decompose said metallo-organic compound and decompose said fluorinating agent whereby the decomposition products of said metallo-organic compound and said fluorinating agent react to form a metal fluoride coating.
Claim 22
Dependent Claim
29 words
The method of claim 18 wherein the metal of said metallo-organic compound comprises at least one of lithium, sodium, potassium, magnesium, calcium, strontium, barium, yttrium, europium, and rare earths.
Claim 23
Dependent Claim
13 words
The method of claim 18 wherein fluorinating agent comprises a fluorinated carboxylic acid.
Claim 24
Dependent Claim
13 words
The method of claim 20 wherein said fluorinated carboxylic acid comprises fluorobutyric acid.
Claim 25
Dependent Claim
25 words
The method of claim 18 wherein said fluorinating agent comprises at least one of trifluoroacetylacetone, heptafluoroacetylacetone, fluoroacetic acid, boron trifluoride, alkanoyl fluorides, and fluoroalkanoic anhydrides.
Claim 26
Dependent Claim
20 words
The method of claim 18 wherein said heating is to at least about 500° C. to form said metal fluoride.
Claim 27
Independent Claim
74 words
A method of forming a film of metal fluoride comprising combining a non-fluorine-containing metallo-organic compound comprising metal acetylacetonate, solvent, and a fluorinating agent to form a casting liquid, forming a coating of said casting liquid on a substrate, and heating said coating and said substrate to decompose said metallo-organic compound and decompose said fluorinating agent whereby the decomposition products of said metallo-organic compound and said fluorinating agent react to form a metal fluoride coating.
Claim 28
Independent Claim
74 words
A method of forming a film of metal fluoride comprising combining a non-fluorine-containing metallo-organic compound comprising metal acetylacetonate, solvent, and a fluorinating agent to form a casting liquid, forming a coating of said casting liquid on a substrate, and heating said coating and said substrate to decompose said metallo-organic compound and decompose said fluorinating agent whereby the decomposition products of said metallo-organic compound and said fluorinating agent react to form a metal fluoride coating.
Claim 29
Dependent Claim
29 words
The method of claim 24 wherein the metal of said metallo-organic compound comprises at least one of lithium, sodium, potassium, magnesium, calcium, strontium, barium, yttrium, europium, and rare earths.
Claim 30
Dependent Claim
13 words
The method of claim 24 wherein fluorinating agent comprises a fluorinated carboxylic acid.
Claim 31
Dependent Claim
13 words
The method of claim 24 wherein said fluorinated carboxylic acid comprises fluorobutyric acid.
Claim 32
Dependent Claim
25 words
The method of claim 24 wherein said fluorinating agent comprises at least one of trifluoroacetylacetone, heptafluoroacetylacetone, fluoroacetic acid, boron trifluoride, alkanoyl fluorides, and fluoroalkanoic anhydrides.
Claim 33
Dependent Claim
20 words
The method of claim 24 wherein said heating is to at least about 500° C. to form said metal fluoride.
Claim 34
Independent Claim
62 words
A method of forming a film of metal fluoride comprising combining a non-fluorine-containing metallo-organic compound, solvent, and a fluorinating agent to form a casting liquid, forming a coating of said casting liquid on a substrate, and heating said coating and said substrate wherein said fluorinating agent comprises at least one of trifluoroacetylacetone, heptafluoroacetylacetone, fluoroacetic acid, boron trifluoride, alkanoyl fluorides, and fluoroalkanoic anhydrides.
Claim 35
Independent Claim
62 words
A method of forming a film of metal fluoride comprising combining a non-fluorine-containing metallo-organic compound, solvent, and a fluorinating agent to form a casting liquid, forming a coating of said casting liquid on a substrate, and heating said coating and said substrate wherein said fluorinating agent comprises at least one of trifluoroacetylacetone, heptafluoroacetylacetone, fluoroacetic acid, boron trifluoride, alkanoyl fluorides, and fluoroalkanoic anhydrides.
Claim 36
Dependent Claim
29 words
The method of claim 30 wherein the metal of said metallo-organic compound comprises at least one of lithium, sodium, potassium, magnesium, calcium, strontium, barium, yttrium, europium, and rare earths.
Claim 37
Dependent Claim
13 words
The method of claim 30 wherein fluorinating agent comprises a fluorinated carboxylic acid.
Claim 38
Dependent Claim
13 words
The method of claim 32 wherein said fluorinated carboxylic acid comprises fluorobutyric acid.
Claim 39
Dependent Claim
20 words
The method of claim 30 wherein said heating is to at least about 500° C. to form said metal fluoride.
Claim 40
Dependent Claim
12 words
The method of claim 30 wherein said substrate comprises a laser crystal.
Claim 41
Dependent Claim
28 words
The method of claim 30 wherein said metallo-organic compound is selected from the group that consists essentially of a metal carboxylates, metal akoxides, metal acetylacetonates, and mixtures thereof.
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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) | 1994-09-23 | 1995-03-25 | 1995-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-23 | 1999-03-25 | 1999-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-23 | 2003-03-25 | 2003-09-24 | $7700.00 | Window Closed / Lapsed |