Solar control coated substrate with high reflectance

Details Solar control coated substrate with high reflectance Solar control coated substrate with high reflectance

C - Chemistry, Metallurgy

03

C

117/232, 117/85

C03C 17/245 (2006.01) C03C 17/25 (2006.01) C03C 17/34 (2006.01)

Patent

CA 2290609

A solar control coated substrate with high reflectance (RL) and comprises a pyrolytically-formed coating layer containing oxides of tin and antimony in a Sb/Sn molar ratio of from 0.01 to 0.5, characterised in that the coating layer further contains an additive comprising one or more of aluminium, chromium, cobalt, iron, manganese, magnesium, nickel, vanadium, zinc and zirconium and is free from fluorine, whereby the so-coated substrate has a reflectance of at least 10 %. The invention covers a process for making such a coated substrate and a glazing panel incorporating such a coated substrate.

L'invention concerne un substrat à revêtement de protection solaire à réflectance élevée (RL), comportant une couche de revêtement formée par pyrolyse renfermant des oxydes d'étain et d'antimoine, avec un rapport molaire Sb/Sn de 0,01 à 0,5. Ce substrat se caractérise par le fait que la couche de revêtement contient en outre un additif comportant au moins un des éléments parmi l'aluminium, le chrome, le cobalt, le fer, le manganèse, le magnésium, le nickel, le vanadium, le zinc et le zirconium, et que cette couche est exempte de fluor, ce qui confère au substrat ainsi protégé une réflectance d'au moins 10 %. L'invention concerne également un procédé de fabrication de ce substrat à revêtement et une vitre comportant ce substrat à revêtement.

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