US 12,065,873 B2
Spacer having improved adhesion
David Janssen, Tönisvorst (DE); Walter Schreiber, Aachen (DE); and Florian Carre, Übach-Palenberg (DE)
Assigned to SAINT-GOBAIN GLASS FRANCE, Courbevoie (FR)
Appl. No. 17/790,887
Filed by SAINT-GOBAIN GLASS FRANCE, Courbevoie (FR)
PCT Filed Jan. 5, 2021, PCT No. PCT/EP2021/050048
§ 371(c)(1), (2) Date Jul. 5, 2022,
PCT Pub. No. WO2021/140081, PCT Pub. Date Jul. 15, 2021.
Claims priority of application No. 20150313 (EP), filed on Jan. 6, 2020.
Prior Publication US 2023/0124735 A1, Apr. 20, 2023
Int. Cl. E06B 3/663 (2006.01); B32B 27/08 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01); E06B 3/673 (2006.01)
CPC E06B 3/66352 (2013.01) [B32B 27/08 (2013.01); B32B 27/32 (2013.01); B32B 27/36 (2013.01); E06B 3/66314 (2013.01); E06B 3/67321 (2013.01); B32B 2255/10 (2013.01); B32B 2255/20 (2013.01); B32B 2255/205 (2013.01); B32B 2307/518 (2013.01); B32B 2307/7265 (2013.01); B32B 2307/732 (2013.01); E06B 3/67343 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A spacer for insulating glass units, comprising:
a polymeric hollow profile, comprising
a first side wall and a second side wall arranged parallel thereto, a glazing interior wall, which connects the first and second side walls to one another;
an outer wall, which is arranged substantially parallel to the glazing interior wall and connects the first and second side walls to one another;
a cavity, which is surrounded by the first and second side walls, the glazing interior wall, and the outer wall,
a moisture barrier on the first side wall, the outer wall, and the second side wall of the polymeric hollow profile, wherein the moisture barrier comprises
a multi-layer system having a barrier function comprising at least one polymeric layer and an inorganic barrier layer, a metallic or ceramic outer adhesive layer, wherein the metallic or ceramic outer adhesive layer has a thickness greater than 10 nm and less than 100 nm,
a binding layer arranged between the metallic or ceramic outer adhesive layer and the multi-layer system, the binding layer containing a polymer material selected from the group consisting of oriented polypropylene, oriented polyethylene terephthalate, biaxially oriented polypropylene, and biaxially oriented polyethylene terephthalate, wherein the binding layer is directly adjacent the metallic or ceramic outer adhesive layer,
wherein said at least one polymeric layer of the multi-layer system forms an external layer of the moisture barrier and faces outward toward the outer wall, and wherein said at least one polymeric layer of the multi-layer system is directly connected to the outer wall via an adhesive.