US 12,240,203 B2
Method for producing a composite pane with a functional element
Uwe Van Der Meulen, Nideggen (DE); Nino Tings, Eschweiler (DE); and Raphaela Kannengiesser, Aachen (DE)
Assigned to SAINT-GOBAIN GLASS FRANCE, Courbevoie (FR)
Appl. No. 17/767,506
Filed by SAINT-GOBAIN GLASS FRANCE, Courbevoie (FR)
PCT Filed Oct. 5, 2020, PCT No. PCT/EP2020/077800
§ 371(c)(1), (2) Date Apr. 8, 2022,
PCT Pub. No. WO2021/069354, PCT Pub. Date Apr. 15, 2021.
Claims priority of application No. 19202366 (EP), filed on Oct. 10, 2019.
Prior Publication US 2024/0075714 A1, Mar. 7, 2024
Int. Cl. B32B 17/12 (2006.01); B32B 3/10 (2006.01); B32B 7/12 (2006.01); B32B 17/10 (2006.01); B32B 38/10 (2006.01)
CPC B32B 17/10045 (2013.01) [B32B 3/10 (2013.01); B32B 7/12 (2013.01); B32B 17/10431 (2013.01); B32B 17/1055 (2013.01); B32B 17/10816 (2013.01); B32B 38/10 (2013.01); B32B 2250/04 (2013.01); B32B 2307/102 (2013.01); B32B 2307/51 (2013.01); B32B 2307/7376 (2023.05)] 21 Claims
OG exemplary drawing
 
1. A method for producing a composite pane, comprising, in the order indicated below:
a) arranging a first thermoplastic intermediate layer, a second thermoplastic intermediate layer, and a third thermoplastic intermediate layer in full surface contact one above the other;
b) joining the first thermoplastic intermediate layer, the second thermoplastic intermediate layer, and the third thermoplastic intermediate layer to form a preliminary composite;
c) removing the third thermoplastic intermediate layer from certain regions to form an aperture,
d) forming a layered stack by inserting a functional element into the aperture in the third thermoplastic intermediate layer;
e) arranging the layered stack between a first pane and a second pane;
f) joining the first pane and the second pane by lamination via the layered stack;
and wherein the functional element has a thickness of ≥50 μm, and the third thermoplastic intermediate layer has a thickness that substantially corresponds to the thickness of the functional element,
and outer dimensions of the aperture substantially correspond to outer dimensions of the functional element.