Wired glazing and a process for manufacture thereof
AssigneePilkington Group Limited
InventorsMark Andrew CHAMBERLAIN, Leigh Francis MELLOR
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Abstract
A wired glazing is disclosed comprising a ply of interlayer material, having a first busbar and an auxiliary busbar and heating wires between them. An adhesive layer is arranged between the first busbar and the ply of interlayer material. An auxiliary adhesive layer is arranged where an edge of the auxiliary busbar extends beyond an edge of the first busbar. The auxiliary adhesive layer bonds the auxiliary busbar to the ply of interlayer material. A corresponding process for manufacturing a wired glazing is disclosed.
Claims20
1) A glazing, comprising:
- a ply of interlayer material
- a first busbar laid over the ply of interlayer material
- at least one heating wire laid over the first busbar
- and an auxiliary busbar at least partly laid over the heating wire and at least partly laid over the first busbar
- wherein a solder layer suitable for melting in an autoclave covers at least part of a surface of the first busbar or the auxiliary busbar and is arranged to contact the heating wire
- wherein an adhesive layer is arranged between the first busbar and the ply of interlayer material for bonding them together
- characterised in that:
- an auxiliary adhesive layer is arranged where an edge of the auxiliary busbar extends beyond an edge of the first busbar for bonding the auxiliary busbar to the ply of interlayer material.
13) A process for manufacture of a glazing, comprising:
- providing a ply of interlayer material;
- laying a first busbar over the ply of interlayer material;
- laying at least one heating wire over the first busbar;
- laying an auxiliary busbar at least partly over the heating wire and at least partly over the first busbar;
- laying a solder layer on at least part of a surface of the first busbar or the auxiliary busbar and arranging the solder layer to contact the heating wire;
- arranging an adhesive layer between the first busbar and the ply of interlayer material for bonding them together;
- and
- arranging an auxiliary adhesive layer where an edge of the auxiliary busbar extends beyond an edge of the first busbar for bonding the auxiliary busbar to the ply of interlayer material.
Dependencies are inferred from the claim text.