Coating apparatus, method of coating glass, compounds and compositions for coating glasss and coated glass substrates
US5356718A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1993 |
| Grant date | Oct 18, 1994 |
| Priority date | — |
| Expiry date | Feb 16, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2218/152
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An apparatus for coating a glass ribbon has an exhaust on each side of a coating unit at different distances therefrom. With this arrangement, portions of the ribbon upstream and downstream of the coating unit are exposed to coating vapors from the coating unit for different periods of time. A coating mixture includes tin containing precursors and a silicon containing precursor. The silicon containing precursor has the structural formula ##STR1## where R.sub.1 is a group which does not have an oxygen available to form a peroxide, R.sub.2 is a functional group giving the silicon containing precursor the ability to be easily converted to silicon oxide coating, R.sub.3 is a bridging group to provide for multiple silicon atoms and R.sub.4 completes the bonding on the foundation silicon atom. An accelerant e.g. a phosphorus containing precursor may be used with the metal containing precursors to increase the deposition rate of the coating. The coating deposited on the glass has regions of continuously varying weight percent of silicon oxide and tin oxide as the distance from the glass-coating interface increases, with the surface of the coating farthest from the glass-coating interface …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.