Process and device for coating a substrate with a pulverulent product
US4933211A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1989 |
| Grant date | Jun 12, 1990 |
| Priority date | — |
| Expiry date | Feb 1, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C17/002
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to coating a heated substrate, particularly glass, by a process according to which a distribution nozzle ending in a slot, sprays a gas stream mixed with a pulverulent or powder product, which decomposes in heat, onto a heated substrate for contact therewith to form a thin coating layer thereupon. The coating zone in the vicinity of the main stream of gas-entrained powder coming from the nozzle is cooled to prevent premature decomposition and to directly remove pulverulent products not immediately deposited upon the substrate. Also, a device for carrying out the novel process is disclosed herein. The invention makes it possible to produce a coated glass substrate which is essentially free of the problem of coating fogging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.