Method for obtaining a laminated curved glazing
AssigneeSaint-Gobain Glass France
InventorFlorian Flamary-Mespoulie
Life of this patent
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Abstract
A method for obtaining a laminated curved glazing, particularly for a motor vehicle windscreen or roof. The method includes the deposition (b) of an enamel layer on a stack of thin layers deposited on a first glass sheet as well as the deposition (c), at least on the enamel layer, of refractory particles based on oxides, of metals or carbides, at least one dimension of which is larger than 30 μm. The stack of thin layers is completely dissolved by the enamel layer at the end of a bending procedure (d) carried out before laminating (e) the first glass sheet with an additional glass sheet by a lamination interlayer.
Claims20
A method for obtaining a laminated curved glazing, comprising:
- a. providing a first glass sheet, coated on at least part of one of the faces thereof with a stack of thin layers,
- b. a step of depositing, on part of the surface of the stack of thin layers, an enamel layer,
- c. a step of depositing, at least on said enamel layer, refractory particles based on oxides, carbides or metals, at least one dimension of which is greater than or equal to 30 μm,
- d. a step of simultaneously bending the first glass sheet and an additional glass sheet, with the enamel layer facing said additional glass sheet,
- e. a step of laminating said first glass sheet with the additional glass sheet by a lamination interlayer, such that the enamel layer is facing said interlayer,
- said method further comprising a step of pre-firing the enamel layer during which the stack of thin layers located under the enamel layer is at least partially dissolved by said enamel layer, said pre-firing step being either a step b1 performed between step b and step c or a step c1 carried out between step c and step d, the stack of thin layers located under the enamel layer being completely dissolved by said enamel layer at least by the end of step d,
- wherein the refractory particles are deposited in a mixture with infrared radiation absorbent elements.
Dependencies are inferred from the claim text.