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1. (WO2018178547) LAMINATED GLAZING COMPRISING A STACK OF LAYERS

Pub. No.:    WO/2018/178547    International Application No.:    PCT/FR2018/050721
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Tue Mar 27 01:59:59 CEST 2018
IPC: B32B 17/10
Applicants: SAINT-GOBAIN GLASS FRANCE
Inventors: COMPOINT, François
DE GRAZIA, Marco
DALLE-FERRIER, Cécile
Title: LAMINATED GLAZING COMPRISING A STACK OF LAYERS
Abstract:
The present invention relates to a method for producing coloured laminated glazing comprising at least a first glass sheet and a second glass sheet which are connected to one another by a thermoplastic interlayer. The method comprises the steps of: depositing a stack of layers comprising at least one functional layer on at least one face of the first and/or second glass sheet; depositing a polymer layer on at least one face of the first and/or second glass sheet using a wet process, said polymer layer comprising a colouring agent and polymer compounds; drying and optionally hardening the polymer layer; assembling the glass sheet that has been coated with the coloured polymer layer with a colourless transparent thermoplastic interlayer and with the second glass sheet, such that the coloured polymer layer is in direct contact with the interlayer; degassing, during which the air trapped between the glass sheets and the thermoplastic interlayer is removed; and heat-treating the laminated glass, under pressure and/or vacuum, at a temperature of between 100 and 200°C, during which the colouring agent in the polymer layer migrates towards the thermoplastic interlayer and the laminated glazing is assembled.