Edge protected barrier assemblies

Patent metadata

Field	Value
Publication number	US-10038112-B2
Application number	US-201715429649-A
Country	US
Kind code	B2
Filing date	Feb 10, 2017
Priority date	Aug 4, 2011
Publication date	Jul 31, 2018
Grant date	Jul 31, 2018

Abstract

The present application is directed to an assembly comprising an electronic device, and a multilayer film. The multilayer film comprises a barrier stack adjacent the electronic device; and a weatherable sheet adjacent the barrier stack opposite the electronic device. The assembly additionally comprises a protective layer in contact with the electronic device and the weatherable sheet. The present application allows for the combination of any of the disclosed elements.

First claim

What is claimed is:

1. An assembly comprising
an electronic device comprising an edge seal material; and
a multilayer film, the multilayer film comprising
a barrier stack adjacent the electronic device; and
a polymer weatherable sheet adjacent the barrier stack opposite the electronic device, and
a protective layer in contact with the edge seal material from the electronic device and the weatherable sheet,

wherein the multilayer film comprises a substrate between the electronic device and the barrier stack, and
wherein the multilayer film is transparent and flexible.

2. The assembly of claim 1 wherein the barrier stack comprises a polymer layer and an inorganic barrier layer.

3. The assembly of claim 2 wherein the inorganic barrier layer is an oxide layer.

4. The assembly of claim 1 wherein the electronic device comprises an encapsulant layer.

5. The assembly of claim 1 wherein the electronic device comprises a backsheet.

6. The assembly of claim 1 wherein the protective layer is in contact with the barrier stack.

7. The assembly of claim 1 wherein the protective layer is a weatherable tape.

8. The assembly of claim 1 wherein the protective layer is a mechanical junction.

9. The assembly of claim 1 wherein the protective layer is a curable resin.

10. The assembly of claim 1 wherein the protective layer is bonded to the weatherable sheet.

11. The assembly of claim 1 wherein the substrate comprises at least one of polyethylene terephthalate, polyethylene naphthalate, polyetheretherketone, polyaryletherketone, polyacrylate, polyetherimide, polyarylsulfone, polyethersulfone, polyamideimide, or polyimide.

12. The assembly of claim 1 wherein the weatherable sheet comprises a fluoropolymer.

13. The assembly of claim 12 wherein the fluoropolymer comprises at least one of an ethylene tetrafluoro-ethylene copolymer, a tetrafluoroethylene-hexafluoropropylene copolymer, a tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride copolymer, or a polyvinylidene fluoride.

14. The assembly of claim 1 comprising a pressure sensitive adhesive layer between the weatherable sheet and the barrier stack.

15. The assembly of claim 1 wherein the electronic device is a photovoltaic cell.

16. The assembly of claim 1 wherein the substrate is heat stabilized.

17. The assembly of claim 1 wherein the barrier stack has a water vapor transmission rate of less than 0.005 cc/m 2 /day at 50° C. and 100% relative humidity.

18. The assembly of claim 1 wherein the barrier stack has an oxygen transmission rate of less than 0.005 cc/m 2 /day at 23° C. and 90% relative humidity.

19. The assembly of claim 1 wherein the barrier stack comprises at least two polymers layers.

Assignees

• 3M Innovative Properties Co

Inventors

• Weigel Mark D
• Roehrig Mark A
• Kidane Samuel
• Delmore Michael D
• Berniard Tracie J

Classifications

• H01L31/048

  Electricity · mapped topic

• Y02E10/50

  Photovoltaic [PV] energy · CPC title

• Y02B10/12

  Cross-Sectional Technologies · mapped topic

• H01L31/0322

  Electricity · mapped topic

• H01L31/0481 Primary

  Electricity · mapped topic