Self-cleaning glazing sheet

Details Self-cleaning glazing sheet Self-cleaning glazing sheet

C - Chemistry, Metallurgy

03

C

C03C 17/34 (2006.01) C03C 4/02 (2006.01) C03C 17/36 (2006.01)

Patent

CA 2469018

A self-cleaning glazing sheet, preferably of glass, comprises a substrate, a hydrophilic coating on a surface of the substrate, and heating means for raising the temperature of the self-cleaning glazing sheet above the temperature of a self-cleaning glazing sheet having no heating means. Preferably, the hydrophilic coating is photocatalytically active, most preferably of titanium oxide. The preferred heating means comprises a tinted glass substrate which can use incident radiant energy to raise the temperature of the substrate. Multiple glazing units and laminates comprising a self- cleaning glazing sheet and heating means are also disclosed.

L'invention concerne une feuille de vitrage autonettoyante, de préférence en verre, comprenant un substrat, un revêtement hydrophile sur une surface de substrat, et un moyen de chauffage destiné à élever la température de la feuille de vitrage autonettoyante au-dessus de la température d'une feuille de vitrage autonettoyante n'ayant pas de moyen de chauffage. De préférence, le revêtement hydrophile est actif photocatalytiquement, idéalement en oxyde de titane. Le moyen de chauffage préféré comprend un substrat en verre teinté pouvant utiliser une énergie rayonnante incidente afin d'élever la température du substrat. De multiples unités de vitrage et des stratifiés comprenant une feuille de vitrage autonettoyante et un moyen de chauffage sont également décrits.

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