Composite glass pane with a border seal and method for producing same

A method for producing a composite glass pane, the method comprising:

• a) producing a pre-laminate composed of first and second glass panes, each of the first and second glass panes having two opposite main surfaces that are connected by a pane edge;
• b) producing an intermediate layer comprising a cover layer made of a polymer;
• c) assembling the first and second glass panes and the intermediate layer, wherein, after the assembling, (i) the intermediate layer is arranged between the first and second glass panes, (ii) the pane edge of the first glass pane is offset relative to the pane edge of the second glass pane, and (iii) an edge of the intermediate layer is offset relative to both the pane edge of the first glass pane and the pane edge of the second glass pane such that a border gap is formed between the first and second glass panes and along the edge of the intermediate layer;
• d) injecting a melt of a thermoplastic polymer that is fusible with the cover layer into the border gap with an extrusion die to form a border seal in said border gap, wherein an opening of the extrusion die is positioned between a first roller and a second roller directly in front of the border gap so that:
• the first roller rests against the pane edge of the first glass pane and
• the second roller rests against the pane edge of the second glass pane, wherein the first roller and the second roller are displaceable parallel to, respectively, the two opposite main surfaces of the first glass pane and the two opposite main surfaces of the second glass pane to compensate for the offset of the pane edge of the first glass pane relative to the pane edge of the second glass pane, and
• the pre-laminate rests with one of the two opposite main surfaces of the first or second glass pane on a third roller, the third roller being displaceable in a direction perpendicular to said one of the two opposite main surfaces of the first glass pane or the second glass pane,
• e) based on the injecting, forming the border seal;
• f) bonding the first glass pane, the second glass pane and the intermediate layer by supplying of heat and application of pressure;
• and
• g) based on the bonding, forming the composite glass pane, and fusing the thermoplastic polymer injected into the border gap with the polymer of the cover layer.