Coated substrates having undercoating layers that exhibit...

Details Coated substrates having undercoating layers that exhibit... Coated substrates having undercoating layers that exhibit...

C - Chemistry, Metallurgy

03

C

C03C 17/34 (2006.01)

Patent

CA 2631483

A coated substrate is disclosed. The coated substrate includes a substrate; an undercoating layer comprising at least one layer selected from a mixture of silica and zirconia; a mixture of silica and alumina; or a mixture of silica, alumina and titania overlaying at least a portion of the substrate; and a functional coating overlaying at least a portion of the undercoating. The coated substrates of the invention exhibit improved properties such as increased durability, photocatalytic activity, etc. as a result of the undercoating layer.

L'invention concerne un substrat revêtu comportant un substrat; une sous-couche contenant au moins une couche choisie parmi un mélange de silice et de zircon, un mélange de silice et d'alumine, ou un mélange de silice, d'alumine et de titane recouvrant au moins une partie du substrat; et un revêtement fonctionnel recouvrant au moins une partie de la sous-couche. Les substrats revêtus selon l'invention présentent des propriétés améliorées telles qu'une meilleure durabilité, une meilleure activité photocatalytique etc. du fait de la sous-couche.

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