Coated article including soda-lime-silica glass substrate...

Details Coated article including soda-lime-silica glass substrate... Coated article including soda-lime-silica glass substrate...

C - Chemistry, Metallurgy

03

C

C03C 3/087 (2006.01) C03C 17/34 (2006.01) C03C 17/36 (2006.01)

Patent

CA 2616106

A coated article includes a glass substrate that supports a coating such as a low- E (low ernissivity) coating. In certain embodiments, the glass substrate is formed of a soda-lime-silica based glass composition manufactured using a float process. In certain embodiments, lithium oxide (e.g., Li20) and/or potassium oxide (K20) is used in the soda-lime-silica based glass substrate in order to reduce sodium migration and/or improve surface stability. Such coated articles are useful, for example in architectural, vehicular and/or residential glass window applications.

L~objet revêtu selon l~invention comprend un substrat de verre qui supporte un revêtement tel qu~un revêtement à E faible (faible facteur d~émissivité). Dans certains modes de réalisation, le substrat de verre est constitué d~une composition de verre à base de soude-chaux-silice fabriquée par un processus de flottage. Dans certains modes de réalisation de l~oxyde de lithium (par ex. Li20) et/ou de l~oxyde de potassium (K20) est utilisé dans le substrat de verre à base de soude-chaux-silice afin de réduire la migration de sodium et/ou améliorer la stabilité de la surface. De tels objets revêtus sont utiles, par exemple dans les applications de fenêtres en verre en architecture, en automobile ou dans les résidences.

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