Patent US5085805A successfully refreshed from Google Patents.
US5085805A
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US
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Electrically conducting, ir reflecting, fluorine-doped tin oxide organic compound
Assignee: Evonik Operations GmbH
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Filing: 1991-03-27
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Granted: 1992-02-04
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Expires: 2011-03-27
Abstract
Abstract A method and composition are disclosed for the production of electrically conducting, IR reflecting, fluorine-doped tin oxide layers on surfaces of a glass or ceramic objects or of enamel coatings. The method comprises applying an organic solution of a mixture of alkyltin oxide and trifluoroacetic acid to the surface, which has been heated to 400° to 700° C., wherein trifluoroacetic acid is present in the solution in a substoichiometric amount. The composition useful for carrying out the method comprises an organic solution of alkyltin oxide and trifluoroacetic acid in a substoichiometric amount relative to the alkyltin oxide. Variable doping with fluorine and, with that, optimization of the surface resistance value as well as of the IR reflection become possible by means of the invention.
Inventors
- 👤 Erich Ruf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:16
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/25; C03C17/253; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/211; C03C2217/24; C03C2217/241; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/112
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
128 words
A composition for applying electrically conductive, IR reflecting layers on the surface of glass, ceramic or enamel comprising a solution of 50 to 80% by weight of mixture of alkyltin oxide and trifluoroacetic acid dissolved in an organic solvent, wherein the mixture of alkyltin oxide and trifluoroacetic acid is selected from the group consisting of a) monobutyltin oxide and trifluoroacetic acid in a molar ratio of monobutyltin oxide : trifluoroacetic acid ranging from 1 :<3 to 1 : 0.15, b) dibutyltin oxide and trifluoroacetic acid in a molar ratio of dibutyltin oxide : trifluoroacetic acid ranging from 1 :<2 to 1 : 0.74 or c) tributyltin oxide and trifluoroacetic acid in a molar ratio of tributyltin oxide : trifluoroacetic acid ranging from 1 :<2 to 1 : 0.15.
Claim 2
Dependent Claim
128 words
A composition for applying electrically conductive, IR reflecting layers on the surface of glass, ceramic or enamel comprising a solution of 50 to 80% by weight of mixture of alkyltin oxide and trifluoroacetic acid dissolved in an organic solvent, wherein the mixture of alkyltin oxide and trifluoroacetic acid is selected from the group consisting of a) monobutyltin oxide and trifluoroacetic acid in a molar ratio of monobutyltin oxide : trifluoroacetic acid ranging from 1 :<3 to 1 : 0.15, b) dibutyltin oxide and trifluoroacetic acid in a molar ratio of dibutyltin oxide : trifluoroacetic acid ranging from 1 :<2 to 1 : 0.74 or c) tributyltin oxide and trifluoroacetic acid in a molar ratio of tributyltin oxide : trifluoroacetic acid ranging from 1 :<2 to 1 : 0.15.
Claim 3
Dependent Claim
74 words
The composition of claim 1, in which the solution contains a mixture of alkyltin oxide and trifluoroacetic acid selected from the group consisting of a) monobutyltin oxide : trifluoroacetic acid in a molar ratio of 1 :<2 to 1 : 0.15, b) dibutyltin oxide : trifluoroacetic acid in a molar ratio of 1 :<1.5 to 0.74 or c) tributyltin oxide : trifluoroacetic acid in a molar ratio of 1 :<1.5 to 1 : 0.15.
Claim 4
Dependent Claim
20 words
The composition according to claim 1 in which the solvent is ethyl acetate, methyl ethyl ketone or a combination thereof.
Claim 5
Dependent Claim
20 words
The composition according to claim 2 in which the solvent is ethyl acetate, methyl ethyl ketone or a combination thereof.
References Cited (Backward Citations)
US3759743A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1995-02-03 | 1995-08-05 | 1996-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-03 | 1999-08-05 | 2000-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-03 | 2003-08-05 | 2004-02-04 | $7700.00 | Window Closed / Lapsed |