Method for obtaining a curved laminated glazing unit
AssigneeSaint-Gobain Glass France
InventorsJuliette Jamart, Leila Dumotier
Life of this patent
Estimating the term…
Abstract
A method for obtaining a curved laminated glazing unit, includes applying an enamel coating to a part of a first face of a first glass sheet so as to create at least one enameled zone and at least one unenameled zone, applying a sacrificial layer to a part, called the sacrificial zone, of a first face of a second glass sheet, simultaneously bending the first and second glass sheets, the sacrificial zone being disposed at least in line with at least one part of an enameled zone, removing the sacrificial layer, either during the bending or after the bending step, and laminating the first and second glass sheets by a thermoplastic interlayer.
Claims19
A method for obtaining a curved laminated glazing unit possessing a concave side and a convex side, said glazing unit comprising a glass sheet, forming an internal glass sheet, disposed to the concave side of the glazing unit and bonded adhesively by a thermoplastic interlayer with another glass sheet, forming an external glass sheet, disposed to the convex side of the glazing unit, said method comprising:
- applying an enamel coating to a part of a first face of a first glass sheet so as to create at least one enameled zone and at least one unenameled zone,
- applying a sacrificial layer to a part of a first face of a second glass sheet, said part of the first face of the second glass sheet forming a sacrificial zone,
- simultaneously bending the first and second glass sheets, the first and second glass sheets being disposed during bending so that one of the first and second glass sheets is disposed on the other one of the first and second glass sheets, the respective first faces of each of the first and second glass sheets are oriented toward the concave side of the glazing unit, and the sacrificial zone is disposed at least in line with at least one part of an enameled zone,
- removing said sacrificial layer, either during bending or after the bending step,
- laminating the first and second glass sheets with a thermoplastic interlayer.
Dependencies are inferred from the claim text.