US4521454A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing heat-reflecting glass plate by coating with titanium oxide film
Assignee: Central Glass Co Ltd
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Filing: 1984-02-06
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Granted: 1985-06-04
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Expires: 2004-02-06
Abstract
Abstract To produce a heat-reflecting glass plate by coating a glass plate surface with a titanium oxide film, a solution of a thermally decomposable organic titanium compound is sprayed onto the glass plate surface while the glass plate is kept heated. As the improvement, use is made of a chelate compound of titanium formed by coordination of two molecules of either acetylacetone or ethyl acetoacetate as chelate ligands and two molecules of a polyalcohol as nonchelate ligands to a titanium atom. Preferably the polyalcohol is a 1,3-diol, and particularly 2-ethyl-1,3-hexane diol. This chelate compound is not easily influenced by moisture and gives a titanium oxide coating film of superior quality.
Inventors
- 👤 Takayoshi Kandachi
- 👤 Seiki Okino
- 👤 Toshiharu Yanai
- 👤 Katsuto Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:23
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/25; C03C17/256; C07; C07F; C07F7/00; C07F7/003; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/212; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/112
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
114 words
A method of coating a glass plate surface with a titanium oxide film to produce a heat-reflecting glass plate, the method having the step of spraying a solution of a thermally decomposable organic compound of titanium in an organic solvent onto a surface of a glass plate which is at such an elevated temperature that said compound in the sprayed solution decomposes on the glass plate surface to form titanium oxide, characterized in that said compound is a chelate compound of titanium formed by coordination of two chelate ligands, which are selected from the group consisting of acetylacetone and ethyl acetoacetate, and two nonchelate ligands, which are a polyhydric alcohol, to a titanium atom.
Claim 2
Independent Claim
114 words
A method of coating a glass plate surface with a titanium oxide film to produce a heat-reflecting glass plate, the method having the step of spraying a solution of a thermally decomposable organic compound of titanium in an organic solvent onto a surface of a glass plate which is at such an elevated temperature that said compound in the sprayed solution decomposes on the glass plate surface to form titanium oxide, characterized in that said compound is a chelate compound of titanium formed by coordination of two chelate ligands, which are selected from the group consisting of acetylacetone and ethyl acetoacetate, and two nonchelate ligands, which are a polyhydric alcohol, to a titanium atom.
Claim 3
Dependent Claim
13 words
A method according to claim 1, wherein said polyhydric alcohol is a 1,3-diol.
Claim 4
Dependent Claim
12 words
A method according to claim 2, wherein said 1,3-diol is 2-ethyl-1,3-hexane diol.
Claim 5
Dependent Claim
11 words
A method according to claim 1, wherein said solvent comprises dichloromethane.
References Cited (Backward Citations)
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Cited
GB1510587A
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JPS5447715A
Cited
GB2018234A
Cited
US4241108A
Cited
US4323598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-03 | 1988-12-03 | 1989-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-03 | 1992-12-03 | 1993-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-03 | 1996-12-03 | 1997-06-04 | $7700.00 | Window Closed / Lapsed |