Patent US3852098A successfully refreshed from Google Patents.
US3852098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for increasing rate of coating using vaporized reactants
Assignee: PPG Industries Inc
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Filing: 1972-12-15
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Granted: 1974-12-03
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Expires: 1992-12-15
Abstract
Abstract A glass substrate is coated with a metal-containing coating by heating the glass and contacting the hot glass with a gaseous mixture. The mixture is from 50 to 100 percent saturated with the vapors of a reactive metal compound at its temperature immediately before contacting the glass. The mixture is heated by the glass to a sufficient temperature causing the metal compound to react thereby depositing the coating.
Inventors
- 👤 K Bloss
- 👤 H Molketin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:48
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/22; C23C16/30; C23C16/40; C23C16/408; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/245; C23C16/406; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/229; C03C2217/23; C03C2218/00; C03C2218/10; C03C2218/15; C03C2218/152
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
136 words
A METHOD OF COATING A GLASS SUBSTRATE WITH A METAL OXIDE COATING COMPRISING THE STEPS OF: A. DISPERSING A POWDERED COATING REACTANT HAVING A STANDARD VAPORIZATION ENTROPY OF AT LEAST 40 CLAUSIUS AND A MELTING POINT-TO-VAPORIZATION POINT SPAN OF LESS THAN ABOUT 120*C. INTO A STREAM OF AIR THAT IS SUFFICIENTLY HOT TO VAPORIZED COATING REACTANT SO THAT A MIXTURE OF AIR AND VAPORIZED COATING REACTANT IS FORMED; B. MAINTAINING THE MIXTURE AT A TEMPERATURE ABOVE THAT AT WHICH IT IS SATURATED WITH THE COATING REACTANT AND BELOW THAT AT WHICH THE COATING REACTANT PYROLYZES; C. HEATING THE GLASS SUBSTRATE TO A TEMPERATURE SUFFICIENT TO CAUSE THE COATING REACTANT TO PYROLYZE; AND D. DELIVERING THE MIXTURE SUFFICIENTLY CLOSELY TO THE HOT GLASS SUBSTRATE TO CAUSE THE COATING REACTANT TO PYROLYZE FORMING A COATING ON THE SUBSTRATE.
Claim 2
Independent Claim
136 words
A METHOD OF COATING A GLASS SUBSTRATE WITH A METAL OXIDE COATING COMPRISING THE STEPS OF: A. DISPERSING A POWDERED COATING REACTANT HAVING A STANDARD VAPORIZATION ENTROPY OF AT LEAST 40 CLAUSIUS AND A MELTING POINT-TO-VAPORIZATION POINT SPAN OF LESS THAN ABOUT 120*C. INTO A STREAM OF AIR THAT IS SUFFICIENTLY HOT TO VAPORIZED COATING REACTANT SO THAT A MIXTURE OF AIR AND VAPORIZED COATING REACTANT IS FORMED; B. MAINTAINING THE MIXTURE AT A TEMPERATURE ABOVE THAT AT WHICH IT IS SATURATED WITH THE COATING REACTANT AND BELOW THAT AT WHICH THE COATING REACTANT PYROLYZES; C. HEATING THE GLASS SUBSTRATE TO A TEMPERATURE SUFFICIENT TO CAUSE THE COATING REACTANT TO PYROLYZE; AND D. DELIVERING THE MIXTURE SUFFICIENTLY CLOSELY TO THE HOT GLASS SUBSTRATE TO CAUSE THE COATING REACTANT TO PYROLYZE FORMING A COATING ON THE SUBSTRATE.
Claim 3
Dependent Claim
14 words
The method according to claim 1 wherein the coating reactant is a metal trifluoroacetylacetonate.
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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) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |