Composition for coating glass containing an accelerant

Details Composition for coating glass containing an accelerant Composition for coating glass containing an accelerant

C - Chemistry, Metallurgy

03

C

C03C 17/245 (2006.01) B32B 17/06 (2006.01) C03C 17/34 (2006.01) C23C 16/40 (2006.01)

Patent

CA 2104591

A composition for coating glass by chemical-vapor deposition comprises a mixture of a tin oxide precursor monobutyltin trichloride, a silicon dioxide precursor tetraethylorthosilicate, and an accelerant such as triethyl phosphite; the composition is gaseous below 200 °C, and permits coating glass having a temperature from 450 to 650 °C at deposition rates higher than 350 .ANG./ sec. The layer of material deposited can be combined with other layers to produce an article with specific properties such as controlled emissivity, refractive index, abrasion resistance, or appearance.

Composition d'enrobage de verre faisant appel à la technique de dépôt en phase gazeuze par procédé chimique, comprenant un mélange de trichlorure de monobutylitine d'un précurseur de l'oxyde d'étain, du tétraéthylorthosilicate d'un précurseur de dioxyde de silicium, et un agent d'accélération tel que le phosphite triéthyle; la composition est gazeuse en-dessous de 200 C et se dispose sur du verre ayant une température comprise entre 450 et 659 C, à des vitesses de dépôt supérieures à 350 Å/sec. On peut associer la couche de matériau déposée à d'autres couches de façon à obtenir un article possédant des propriétés spécifiques relatives à l'émittance commandée, l'indice de réfraction, la résistance à l'abrasion ou l'aspect.

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