Low-e matchable coated articles and methods of making same

C - Chemistry – Metallurgy – 03 – C

Patent

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Details

C03C 17/36 (2006.01)

Patent

CA 2435083

A heat treatable coated article including an infrared (IR) reflecting layer (e.g., of or including Ag), the coated article being able to attain a .DELTA.E* (glass side) no greater than about 3.0, more preferably no greater than 2.5, and even more preferably no greater than 2.0, following or due to heat treatment (e.g., thermal tempering). Accordingly, low-E(i.e., low emissivity) coated articles of certain embodiments of this invention appear from the glass side thereof visually similar to the naked eye both before and after heat treatment. Coated articles herein may be used in the context of insulating glass (IG) window units, vehicle windshields, or any other suitable applications. In certain embodiments of this invention, an exemplary layer stack includes: glass/Si3N4/NiCr/Ag/NiCr/Si3N4. Other materials may instead be used without departing from the scope and/or spirit of the instant invention which is a low-E matchable product.

L'invention concerne un article revêtu pouvant être thermo-traité qui comprend une couche de réflexion infrarouge (IR) (par exemple, Ag), ledit article revêtu pouvant atteindre un .DELTA.E?*¿ (côté verre) inférieur ou égal à 3,0, de préférence inférieur ou égal à 2,5, et idéalement inférieur ou égal à 2,0, suite à un traitement par la chaleur (par exemple, trempe thermique). Selon certains modes de réalisation, des articles revêtus à faible pouvoir d'émission sont, du côté verre, visuellement identiques lorsqu'on les regarde à l'oeil nu à la fois avant et après le traitement thermique. On peut utiliser les articles revêtus pour des unités de fenêtre en verre isolant (IG), des pare-brise, ou de toute autre application appropriée. Selon d'autres modes de réalisation, une pile de couches exemplaire est constituée de verre/Si¿3?N¿4?/NiCr/Ag/NiCr/Si¿3?N¿4?. On peut utiliser d'autres matériaux sans s'écarter du domaine ou de l'esprit de l'invention, notamment un produit à faible pouvoir d'émission pouvant être apparié.

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