SINGLE PANE GLAZING LAMINATES

• US 20080160321A1
• Filed: 01/03/2007
• Published: 07/03/2008
• Est. Priority Date: 01/03/2007
• Status: Abandoned Application

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Seth, Jayshree, Padiyath, Raghunath
• Application Number:
  US11/619,447
• Publication Number:
  US 20080160321A1
• Time in Patent Office: Days
• US Class Current: 428/432
• CPC Class Codes: B32B 17/10036 comprising two outer glass sheets
• CPC Class Codes: B32B 17/10174 Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
• CPC Class Codes: B32B 17/10761 containing vinyl acetal
• CPC Class Codes: B32B 17/10834 using a fluid
• CPC Class Codes: Y10T 156/10 Methods of surface bonding and/or assembly therefor

Abstract

A single pane glazing unit includes a first glass substrate having a first inner surface and a first outer surface, a second glass substrate having a second inner surface and a second outer surface, and a pyrolytic Low-e coating disposed on the second outer surface, and a multilayer polymeric infrared light reflecting film laminated between the first inner surface and the second inner surface, forming a single pane glazing unit. Methods of forming the same are also disclosed.

Claims

1. A single pane glazing unit comprising:

a first glass substrate having a first inner surface and a first outer surface;

a second glass substrate having a second inner surface and a second outer surface, and a pyrolytic Low-e coating disposed on the second outer surface; and

a multilayer polymeric infrared light reflecting film laminated between the first inner surface and the second inner surface, forming a single pane glazing unit.

2. A single pane glazing unit according to claim 1, wherein the pyrolytic Low-e coating comprises tin oxide or doped tin oxide.

3. A single pane glazing unit according to claim 1, further comprising a least a first lamination layer laminated between the first inner surface and the multilayer polymeric infrared light reflecting film.

4. A single pane glazing unit according to claim 1, further comprising a second lamination layer laminated between the second inner surface and the multilayer polymeric infrared light reflecting film.

5. A single pane glazing unit according to claim 1, further comprising at least a first lamination layer comprising polyvinyl butyral laminated between the first inner surface and the multilayer polymeric infrared light reflecting film and a second lamination layer comprising polyvinyl butyral laminated between the second inner surface and the multilayer polymeric infrared light reflecting film.

6. A single pane glazing unit according to claim 1, wherein the single plane glazing unit has a visible light transmission value of greater than 50%, a solar heat gain coefficient of less than 0.6 and a U-value less than 0.7.

7. A single pane glazing unit according to claim 1, further comprising a infrared light absorbing nanoparticle layer disposed between the second inner surface and the multilayer polymeric infrared light reflecting film.

8. A single pane glazing unit according to claim 7, wherein the infrared absorbing nanoparticle layer comprises lanthanum hexaboride, antimony tin oxide or indium tin oxide.

9. A single pane glazing unit according to claim 1, wherein the multilayer polymeric infrared light reflecting film comprises a plurality of alternating polymeric layers of a first polymer material and a second polymer material and at least one of the alternating layers is birefringent and orientated and the alternating polymeric layers cooperate to reflect infrared light.

10. A single pane glazing unit according to claim 8, wherein the first polymer material comprises polyethylene terephthalate or a copolymer of polyethylene terephthalate.

11. A single pane glazing unit according to claim 1, wherein the first outer surface faces an infrared light source.

12. A method of manufacturing a single pane glazing unit comprising:

providing a first glass substrate having a first inner surface and a first outer surface;

providing a second glass substrate having a second inner surface and a second outer surface, and a pyrolytic Low-e coating disposed on the second outer surface; and

laminating a multilayer polymeric infrared light reflecting film between the first inner surface and the second inner surface, forming a single pane glazing unit.

13. A method according to claim 12, further comprising pyrolitically applying a Low-e coating on the second outer surface before the providing a second glass substrate step.

14. A method according to claim 12, further comprising pyrolitically applying a Low-e coating comprising tin oxide or doped tin oxide on the second outer surface before the providing a second glass substrate step.

15. A method according to claim 12, wherein the laminating step comprises laminating a multilayer polymeric infrared light reflecting film between the first inner surface and the second inner surface by applying heat and pressure to the first glass substrate and the second glass substrate.

16. A method according to claim 12, further comprising disposing an infrared light absorbing nanoparticle layer between the second inner surface and the multilayer polymeric infrared light reflecting film.

17. A method according to claim 12, further comprising disposing an infrared light absorbing nanoparticle layer between the second inner surface and the multilayer polymeric infrared light reflecting film, wherein the infrared absorbing nanoparticle layer comprises lanthanum hexaboride, antimony tin oxide or indium tin oxide.