Spacer for insulating glazing

Patent metadata

Field	Value
Publication number	US-12428903-B2
Application number	US-202218259714-A
Country	US
Kind code	B2
Filing date	Jan 24, 2022
Priority date	Jan 27, 2021
Publication date	Sep 30, 2025
Grant date	Sep 30, 2025

Abstract

A spacer for insulating glazings includes a polymeric main body including first and second pane contact surfaces, a glazing interior surface, an outer surface and a hollow chamber. The first and second pane contact surfaces run opposite one another and parallel to one another. The glazing interior surface and the outer surface are connected to one another via the first pane contact surface and the second pane contact surface. The hollow chamber is enclosed by the glazing interior surface, the outer surface, the first pane contact surface, and the second pane contact surface. The outer surface has a first angled section adjacent the first pane contact surface and a second angled section adjacent the second pane contact surface. Each of the first and second angled sections assume an angle α of 120° to 150° relative to the respective adjacent first pane contact surface and second pane contact surface.

First claim

The invention claimed is:

1. A spacer for insulating glazings comprising a polymeric main body at least comprising a first pane contact surface, a second pane contact surface, a glazing interior surface, an outer surface, and a hollow chamber,
wherein
the first pane contact surface and the second pane contact surface run opposite one another and parallel to one another,
the glazing interior surface and the outer surface are connected to one another via the first pane contact surface and the second pane contact surface,
the hollow chamber is enclosed by the glazing interior surface, the outer surface, the first pane contact surface, and the second pane contact surface,
the outer surface has a first angled section adjacent the first pane contact surface and a second angled section adjacent the second pane contact surface,
the first angled section and the second angled section assume in each case an angle α of 120° to 150° relative to the respective adjacent first pane contact surface and second pane contact surface, and the polymeric main body has at least one corner inside the hollow chamber within a cross-section perpendicular to a longitudinal direction of the polymeric main body and in a region of at least one of the first and second angled sections and the respective first or second pane contact surface adjacent thereto, which corner is rounded with a radius R 1 of 0.4 mm to 2.5 mm,
the polymeric main body has, within said cross-section in the region of the first angled section and the region of the second angled section, at least one corner inside the hollow chamber with the outer surface, which corner is rounded with a radius R 2 of 0.4 mm to 2.5 mm,
the glazing interior surface assumes in each case an angle β of 87° to 93° with the first pane contact surface and the second pane contact surface, and the polymeric main body has, within said cross-section, a corner inside the hollow chamber in a region of the glazing interior surface and the first pane contact surface and/or the second pane contact surface, which corner is rounded with a radius R 3 of 1.0 mm to 2.5 mm.

2. The spacer according to claim 1 , wherein the first angled section and the second angled section assume an angle α of 130° to 140° in each case relative to the respective adjacent first pane contact surface and second pane contact surface.

3. The spacer according to claim 1 , wherein each corner inside the hollow chamber of an angled section with the adjacent pane contact surface is rounded with the radius R 1 of 0.4 mm to 2.5 mm.

4. The spacer according to claim 1 , wherein the first angled section and the second angled section have in each case a corner inside the hollow chamber with the outer surface, which is rounded with the radius R 2 of 0.4 mm to 2.5 mm.

5. The spacer according to claim 1 , wherein the glazing interior surface assumes an angle β of 89.5° to 90.5° in each case with the first pane contact surface and the second pane contact surface and the corners inside the hollow chamber of the glazing interior surface with the first pane contact surface and the glazing interior surface with the second pane contact surface are rounded with the radius R 3 of 1.0 mm to 2.0 mm.

6. The spacer according to claim 1 , wherein the polymeric main body has, between the first and second pane contact surfaces and the first and second angled sections as well as between the first and second angled sections and the outer surface, outside corners that are rounded with a radius R 5 of 0.125 mm to 0.7 mm.

7. The spacer according to claim 1 , wherein a height of the first and second pane contact surfaces is between 55% and 80% of an overall height of the spacer.

8. The spacer according to claim 1 , wherein a wall thickness of the polymeric main body is between 0.5 mm and 1.5 mm.

9. The spacer according to claim 1 , wherein a perforation groove that has multiple openings in the glazing interior surface runs substantially parallel to the first and second pane contact surfaces in the glazing interior surface.

10. The spacer according to claim 1 , wherein the polymeric main body includes a thermoplastic polymer as base material.

11. The spacer according to claim 1 , wherein the polymeric main body has a foamed pore structure.

12. The spacer according to claim 11 , wherein the polymeric main body is foamed by a foaming agent comprising a blowing agent and a carrier material.

13. The spacer according to claim 11 , wherein the polymeric main body contains a thermoplastic polymer as base material at a proportion of 30.0 wt.-% to 70.0 wt.-%, as an elastomeric additive, a thermoplastic elastomer, and/or a thermoplastic terpolymer having an elastomeric component at a proportion of 0.5 wt.-% to 20.0 wt.-% in total, and a reinforcing agent at a proportion of 20.0 wt.-% to 45.0 wt.-%.

14. The spacer according to claim 1 , wherein a gas- and water-tight barrier film is applied at least on the outer surface and the first and second angled sections of the polymeric main body.

15. An insulated glazing comprising a spacer according to claim 1 , a first pane and a second pane, wherein the first pane is attached to the first pane contact surface of the spacer via a sealant and the second pane is attached to the second pane contact surface of the spacer via a sealant.

16. The spacer according to claim 3 , wherein the radius R 1 is from 0.8 mm to 2.5 mm.

17. The spacer according to claim 4 , wherein the radius R 2 is from 0.8 mm to 2.5 mm.

18. The spacer according to claim 5 , wherein the radius R 3 is from 1.3 mm to 1.7 mm.

19. The spacer according to claim 6 , wherein the radius R 5 is from 0.3 mm to 0.7 mm.

20. The spacer according to claim 7 , wherein the height of the first and second pane contact surfaces is between 60% and 75% of the overall height of the spacer.

21. The spacer according to claim 1 , wherein radius R1 is from 1.5 mm to 2.5 mm and radius R2 is from 1.5 mm to 2.5 mm.

Assignees

• Saint Gobain

Inventors

• Bergs Bianca
• Schreiber Walter
• Marjan Christopher
• Florin Pierrick

Classifications

• E06B3/66361

  with special structural provisions for holding drying agents, e.g. packed in special containers · CPC title

• E06B2003/66385

  with special shapes · CPC title

• C08J2325/12

  with unsaturated nitriles · CPC title

• C08J9/0061

  characterized by the use of several polymeric components · CPC title

• C08L25/12

  with unsaturated nitriles · CPC title