Spacer for insulating glazing units

Patent metadata

Field	Value
Publication number	US-10626663-B2
Application number	US-201515506229-A
Country	US
Kind code	B2
Filing date	Sep 18, 2015
Priority date	Sep 25, 2014
Publication date	Apr 21, 2020
Grant date	Apr 21, 2020

Abstract

A spacer for multipane insulating glazing units includes a polymeric main body having two pane contact surfaces running parallel to one another, a glazing interior surface and, an adhesive bonding surface. The pane contact surfaces, and the adhesive bonding surface are connected directly or via connection surfaces. The spacer also includes an insulation film, which is applied on the adhesive bonding surface.

First claim

The invention claimed is:

1. A spacer for multipane insulating glazing units, comprising:
a polymeric main body including:
two pane contact surfaces running parallel to one another,
a glazing interior surface,
an adhesive bonding surface, wherein the pane contact surfaces and the adhesive bonding surface are connected to one another directly or via connection surfaces; and

an insulation film, applied on the adhesive bonding surface, wherein the insulation film includes
a metal-containing barrier layer with a thickness of 1 μm to 20 μm facing the adhesive bonding surface,
a polymeric layer with a thickness of 5 μm to 80 μm, and
a metal-containing thin layer with a thickness of 5 nm to 30 nm adjacent to the polymeric layer,

wherein the metal-containing barrier layer faces the adhesive bonding surface and is bonded to the adhesive bonding surface directly by means of a non-gassing adhesive, and
wherein
the metal-containing thin layer is on the outside, such that the layer sequence in the insulation film, starting from the adhesive bonding surface, is metal-containing barrier layer, polymeric layer, and metal-containing thin layer, or
the polymeric layer is on the outside, such that the layer sequence in the insulation film, starting from the adhesive bonding surface, is metal-containing barrier layer, metal-containing thin layer, and polymeric layer.

2. The spacer according to claim 1 , wherein the insulation film completely covers the adhesive bonding surface and the connection surfaces and partially covers the pane contact surfaces.

3. The spacer according to claim 1 , wherein the metal-containing barrier layer comprises a metal selected from the group consisting of: aluminum, silver, copper, and alloys thereof.

4. The spacer according to claim 1 , wherein the metal-containing barrier layer has a thickness of 5 μm to 10 μm.

5. The spacer according to claim 1 , wherein the metal-containing thin layer has a thickness of 10 nm to 20 nm.

6. The spacer according to claim 1 , wherein the insulation film is bonded to the adhesive bonding surface via a polyurethane hot-melt adhesive.

7. The spacer according to claim 1 , wherein the polymeric layer has a thickness of 5 μm to 24 μm.

8. The spacer according to claim 1 , wherein the polymeric main body contains a polymer selected from the group consisting of: polyethylene (PE), polycarbonates (PC), polypropylene (PP), polystyrene, polyester, polyurethanes, polymethylmethacrylates, polyacrylates, polyamides, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), preferably acrylonitrile-butadiene-styrene (ABS), acrylonitrile-styrene-acrylester (ASA), acrylonitrile-butadiene-styrene—polycarbonate (ABS/PC), styrene-acrylonitrile (SAN), PET/PC, PBT/PC, copolymers thereof, and mixtures thereof.

9. The spacer according to claim 1 , wherein the polymeric main body is glass fiber reinforced.

10. The spacer according to claim 4 , wherein the metal-containing barrier layer has a thickness of 5 μm to 10 μm.

11. The spacer according to one of claim 5 , wherein the metal-containing thin layer has a thickness of 14 nm to 16 nm.

12. The spacer according to claim 7 , wherein the polymeric layer has a thickness of 12 μm.

13. A spacer for multipane insulating glazing units, comprising:
a polymeric main body, including
two pane contact surfaces running parallel to one another,
a glazing interior surface,
an adhesive bonding surface, wherein the pane contact surfaces and the adhesive bonding surface are connected to one another directly or via connection surfaces; and

an insulation film, applied on the adhesive bonding surface, wherein the insulation film includes
a metal-containing barrier layer with a thickness of 1 μm to 20 μm facing the adhesive bonding surface,
a polymeric layer with a thickness of 5 μm to 80 μm, and
a first and second metal-containing thin layers with a thickness of 5 nm to 30 nm adjacent to the polymeric layer,

wherein the metal-containing barrier layer faces the adhesive bonding surface and is bonded to the adhesive bonding surface directly by means of a non-gassing adhesive, and
wherein the second metal-containing thin layer is on the outside, such that the layer sequence in the insulation film, starting from the adhesive bonding surface, is metal-containing barrier layer, the first metal-containing thin layer, polymeric layer, and the second metal-containing thin layer.

Assignees

• Saint Gobain

Inventors

• Schreiber Walter
• Rigaud Martin
• Kuster Hans-Werner

Classifications

• E06B3/66352

  with separate sealing strips between the panes and the spacer · CPC title

• E06B3/66342

  characterised by their sealed connection to the panes · CPC title

• E06B2003/66338

  of glass · CPC title

• E06B2003/6638

  with coatings · CPC title

• E06B3/66319 Primary

  of rubber, plastics or similar materials · CPC title