Method of coating glass
US5203903A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1991 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Aug 19, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C16/453
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In methods of forming a coating comprising a pyrolytically formed oxide layer on a travelling hot glass substrate, the substrate is contacted with coating precursor material in the presence of oxygen. In order to prevent interaction between the glass of the substrate and the coating precursor material used for applying an upper coating stratum, and/or to facilitate modification of the optical or other properties of the coating as a whole, an oxide substratum of said coating ("the undercoating layer") is pyrolytically formed in an incompletely oxidized state by contacting the substrate in an undercoating chamber with undercoat precursor material in the presence of oxygen in insufficient quantity for full oxidation of the undercoat material on the substrate and such undercoat is overcoated with an upper coating layer while it is still in an incompletely oxidized state, and while the substrate is still hot, thereby to preserve such undercoat in an incompletely oxidized state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.