Method of forming a glass sheet with a ceramic paint thereon

Details Method of forming a glass sheet with a ceramic paint thereon Method of forming a glass sheet with a ceramic paint thereon

C - Chemistry, Metallurgy

03

C

117/162, 117/109

C03C 17/02 (2006.01) C03B 23/03 (2006.01) C03C 8/14 (2006.01) C03C 17/22 (2006.01)

Patent

CA 1286168

Abstract This specification is directed to a method of forming a glass sheet with a ceramic paint thereon, the method having the following steps. A ceramic paint is applied to the glass sheet. The ceramic paint includes normal ceramic paint components along with, as a new component thereof, a metal oxide having at least a low valence oxidation state and a high valence oxidation state. The metal oxide is in its low valence state when applied in the ceramic paint to the glass sheet. The glass sheet is heated to a temperature which softens the glass sheet sufficiently so that the glass sheet can be formed. The glass sheet and the ceramic paint thereon are engaged with a fiberglass covered forming die to form the heated glass sheet to a desired shape. The forming die is removed from engagement with the glass sheet. The metal oxide addition to the ceramic paint in its low valence state is credited with being effective to prevent sticking of any of the ceramic paint to the forming die. The glass sheet is cooled to obtain a formed glass sheet with a ceramic paint thereon.

505531

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