Process for producing coated flat glass
US4536204A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 1984 |
| Grant date | Aug 20, 1985 |
| Priority date | — |
| Expiry date | May 9, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C17/002
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A metal or metal compound coating 6 is deposited on a face of a hot, freshly formed ribbon 1 of glass during the ribbon's forward travel through a coating station 5 between a forming installation 3 and an annealing lehr 4 by contacting the ribbon face with fluid coating precursor material e.g. sprayed from nozzle 17. Preparatory to the coating step, the ribbon 1 is passed through successive thermal conditioning zones comprising a zone 19 in which temperature gradients across the ribbon are reduced and a following zone in which heat is supplied substantially entirely to a surface layer of the glass at the face to be coated by exposing that face to one or more radiant heaters 22 having a black body temperature below 1100.degree. C. to compensate at least partially for the cooling effect of the coating step on the ribbon 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.