C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
C03C 17/34 (2006.01) C03C 17/23 (2006.01)
Patent
CA 2626843
The invention relates to a material comprising: (i) a substrate which is provided with a titanium oxide-based coating which is topped with a thin hydrophilic layer, said thin hydrophilic layer forming at least part of the external surface of the material and containing no titanium oxide; or (ii) a substrate which is provided with a coating based on titanium oxide and silicon oxide, whereby the titanium oxide content at the external surface of the material is non-null and the silicon oxide content is greater on the surface than inside the layer. The invention relates to the use of said material in order to prevent mineral fouling from being deposited on the external surface in the absence of water runoff.
L'invention a pour objet l'utilisation d'un matériau constitué soit d'un substrat muni d'un revêtement a base d'oxyde de titane surmonté d'une couche mince hydrophile formant au moins une partie de la surface externe dudit matériau et n'étant pas constituée d'oxyde de titane soit d'un substrat muni d'un revêtement à base d'oxyde de titane et d'oxyde de silicium, la teneur en oxyde de titane étant non-nulle à la surface externe dudit matériau et la teneur en oxyde de silicium étant supérieure en surface qu'a l'intérieur de la couche, comme matériau empêchant le dépôt de salissures minérales sur ladite surface externe en l'absence de ruissellement d'eau.
Barthel Etienne
Garrec Ronan
Kharchenko Andriy
Lelarge Anne
Nghiem Bernard
Goudreau Gage Dubuc
Saint-Gobain Glass France
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