C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
C03C 17/25 (2006.01)
Patent
CA 2130162
ABSTRACT OF THE DISCLOSURE A method is described for the preparation of electrically conductive, infrared-reflecting layers on glass, glass-ceramic or enamel surfaces by spraying and thermally decomposing liquid Sn(IV) compounds and fluorine compounds as preparations containing doping agents on to the surface heated to 400° to 800°C, yet below their softening point, wherein, as liquid preparations, ionically stabilized, organic tin(IV) acid sols are used, which contain aliphatic alcohols or ketones with, in each case, at most 6 carbon atoms in the molecule or esters with a boiling point below 180°C as liquid, organic medium, as well as fluoride ions in an adequate amount for doping. The preparations are homogenous, stable for a long time, and can readily be diluted with alcohols, ketones, and other polar solvents. The tin oxide layers, produce with the preparations on the substrates, have a high transparency in the wavelength of visible light, a low surface resistance and a high reflection in the infrared wavelength region.
Guhl Dieter
Vallerien Sven-Uwe
Marks & Clerk
Th. Goldschmidt Ag
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