阅读说明：本技术 包含具有含一组宽度可变的流线的加热层的透明基材的层合玻璃板 (Laminated glass panel comprising a transparent substrate with a heating layer comprising a set of flow lines of variable width ) 是由 V.勒古瓦 于 2019-12-04 设计创作，主要内容包括：本发明涉及：-由若干通过夹层粘合剂层彼此成对粘合相连的硬质透明基材形成的层合玻璃板,这些透明基材中的至少一个涂覆有导电层(2),此透明基材的区域(1)显示四个成对的相对边缘(3,5)、(4,6),沿两个相对的边缘(3,5)安置第一和第二母线(7,8),导电层(2)显示用于引导母线(7,8)间电流的流线(9;91;92;93),这组流线(9;91;92;93)的宽度可变。-其制造方法、其用途特别是航空用途。(The present invention relates to: -a laminated glazing panel formed by a plurality of rigid transparent substrates adhesively joined to one another in pairs by means of an interlayer adhesive layer, at least one of the transparent substrates being coated with an electrically conductive layer (2), the region (1) of this transparent substrate exhibiting four pairs of opposite edges (3,5), (4,6), along two opposite edges (3,5) there being positioned a first and a second busbar (7,8), the electrically conductive layer (2) exhibiting a flow line (9;91;92;93) for guiding the current between the busbars (7,8), the width of this set of flow lines (9;91;92;93) being variable. A process for their manufacture, their use, in particular for aeronautical use.)

1. Laminated glazing formed of a plurality of rigid transparent substrates joined to one another in pairs by means of an interlayer adhesive layer, at least one of the transparent substrates being coated with an electrically conductive layer (2), the region (1) of the transparent substrate exhibiting four pairs of opposite edges (3,5), (4,6), first and second busbars (7,8) being arranged along the two opposite edges (3,5), the electrically conductive layer (2) exhibiting flow lines (9;91;92;93) for guiding the current between the busbars (7,8), characterised in that the width of the set of flow lines (9;91;92;93) is variable.

2. Laminated glass pane according to claim 1, characterised in that the electrically conductive layer (2) is based on a doped metal oxide, such as indium oxide doped with tin (ITO), and/or tin oxide doped with fluorine SnO₂F, and/or aluminum-doped zinc oxide (AZO), and/or based on metals such as gold Au and/or silver Ag, optionally in the form of a multilayer stack, in particular of the type comprising at least one silver layer.

3. Laminated glass pane according to claim 1 or 2, characterised in that the electrically conductive layer (2) has a thickness of 2 to 1600 nm.

4. Laminated glass pane according to any one of the preceding claims, characterised in that the electrically conductive layer (2) exhibits a thickness gradient.

5. Laminated glass pane according to one of the preceding claims, characterised in that the flow lines (9;91;92;93) have a width of 5 to 1000 μm.

6. Laminated glass pane according to any one of the preceding claims, characterised in that the distance between two adjacent flow lines is at least equal to 8, at most equal to 40 and, in increasing order of preference, at most equal to 30, 25 and 20 mm.

7. Laminated glass pane according to any one of the preceding claims, characterised in that the electrically conductive layer (2) exhibits phase separation lines consisting of ablation lines having a width of 500 to 2000 μ ι η.

8. Laminated glass pane according to any one of the preceding claims, characterised in that the rigid transparent substrate is made of glass, such as soda-lime glass, aluminosilicate glass, or borosilicate glass, which is chemically strengthened, heat tempered or semi-tempered as required, or of a polymeric material, such as poly (methyl methacrylate) (PMMA), Polycarbonate (PC), poly (ethylene terephthalate) (PET) or Polyurethane (PU).

9. Laminated glass pane according to any one of the preceding claims, characterised in that the electrically conductive layer (2) is on the side of the inside of the laminated glass pane facing towards at least one of the two hard transparent substrates constituting the two outer surfaces of the laminated glass pane.

10. Laminated glazing as claimed in any of the preceding claims, characterized in that the interlayer adhesive layer is selected from polyvinyl butyral (PVB), Polyurethane (PU), poly (ethylene/vinyl acetate) (EVA), ionomers, alone or as a mixture of several of them.

11. Laminated glass pane according to one of the preceding claims, characterised in that one flow line (92;93) has at least a locally increased width, so that the electrical resistance is locally increased, the surface area of the electrically conductive area is locally reduced and the heating power density is locally increased, so that cold spots are eliminated.

12. Method for manufacturing a laminated glass pane according to any one of the preceding claims, comprising forming flow lines (9;91;92;93) with a controllable variable width on the electrically conductive layer (2) as follows: the conductive layer (2) is deposited as a second coating by ablation by means of a pulsed laser combined with a scanner to move the laser spot, by local chemical lift-off of the conductive layer (2), and/or by depositing a first coating, e.g. ink, according to a pattern corresponding to the flow lines (9;91;92;93), and then eliminating, e.g. dissolving, said first coating and the parts of the conductive layer (2) covering it.

13. Use of a laminated glass sheet according to any one of the preceding claims 1 to 11 as a heated glass sheet for an armoured vehicle for aviation, land, in particular railway, or water, in particular sea.

14. Use according to claim 13, wherein for use as a deicing/anti-icing glass panel, the face of the rigid transparent substrate is numbered starting from the face in contact with the external atmosphere defined as face 1 and the face n of the laminated glass panel is coated with an electrically conductive layer (2), wherein n is greater than or equal to and preferably equal to 2.

15. Use according to claim 13, wherein as defogging/antifogging glass sheet, the face defined as face 1, which is in contact with the external atmosphere, is numbered for the face of the rigid transparent substrate and the face n of the laminated glass sheet, wherein n is greater than or equal to 3, is coated with the electrically conductive layer (2), the face of the laminated glass sheet facing the rigid transparent substrate preferably being in contact with the interior volume of the vehicle.