Lamination of electrochromic device to glass substrates

Patent metadata

Field	Value
Publication number	US-9316883-B2
Application number	US-201313906456-A
Country	US
Kind code	B2
Filing date	May 31, 2013
Priority date	Mar 5, 2010
Publication date	Apr 19, 2016
Grant date	Apr 19, 2016

Abstract

Electrochromic device laminates and their method of manufacture are disclosed.

First claim

The invention claimed is:

1. A process of manufacturing an electrochromic device laminate comprising:
providing an electrochromic glass substrate;
cutting said electrochromic glass substrate into one or more substrate daughter panes;
fabricating a plurality of electrochromic device precursors on each of said one or more substrate daughter panes;
cutting each of said plurality of electrochromic device precursors into individual electrochromic devices; and
laminating each of said individual electrochromic devices to a separate outer laminate glass pane,
wherein each of said plurality of electrochromic device precursors are laser cut, and wherein said laminate has an edge strength of at least about 60 MPa.

2. The process of claim 1 , wherein said individual electrochromic devices are smaller than said outer laminate glass pane in at least one dimension.

3. The process of claim 2 , wherein said individual electrochromic devices are indented about 0.5 mm to about 3 mm relative to said outer laminate glass pane in at least one dimension.

4. The process of claim 1 , wherein said electrochromic glass substrate has a thickness ranging from about 0.7 mm to about 6 mm.

5. A laminate prepared according to the process of claim 1 .

6. The process of claim 1 , wherein said laminate has an edge strength of at least about 69 MPa.

7. The process of claim 1 , wherein said laminate has an edge strength of at least about 75 MPa.

8. A process of manufacturing an electrochromic device laminate comprising:
providing an electrochromic glass substrate;
cutting said electrochromic glass substrate into one or more substrate daughter panes;
fabricating a plurality of electrochromic device precursors on each of said one or more substrate daughter panes;
cutting each of said plurality of electrochromic device precursors into individual electrochromic devices; and
laminating each of said individual electrochromic devices to a separate outer laminate glass pane,
wherein each of said plurality of electrochromic device precursors are cut by electrothermal cutting, and wherein said laminate has an edge strength of at least about 60 MPa.

9. The process of claim 8 , wherein said laminate has an edge strength of a least about 69 MPa.

10. A laminate prepared according to the process of claim 8 , wherein said laminate has an edge strength of at least about 75 MPa.

11. A process of manufacturing an electrochromic device laminate comprising:
providing an electrochromic glass substrate;
fabricating a plurality of electrochromic device precursors on said electrochromic glass substrate;
cutting each of said plurality of electrochromic device precursors into individual electrochromic devices; and
laminating each of said individual electrochromic devices to a separate outer laminate glass pane,
wherein each of said plurality of electrochromic device precursors are laser cut, and wherein said laminate has an edge strength of at least about 60 MPa.

12. The process of claim 11 , wherein said individual electrochromic device is about the same size as said outer laminate glass pane.

13. The process of claim 11 , wherein said individual electrochromic device is smaller than said outer laminate glass pane in at least one dimension.

14. The process of claim 13 , wherein said individual electrochromic device is indented about 0.5 mm to about 3 mm relative to said outer laminate glass pane in at least one dimension.

15. The process of claim 11 , wherein said laminate has an edge strength of at least about 69 MPa.

16. The process of claim 11 , wherein said electrochromic glass substrate is a different material than said outer laminate glass pane.

17. The process of claim 11 , wherein said electrochromic substrate has a coefficient of thermal expansion ranging from about 2 ppm/K to about 10 ppm/K.

18. The process of claim 11 , wherein said electrochromic glass substrate has a thickness ranging from about 0.7 mm to about 6 mm.

19. The process of claim 9 , wherein said outer laminate glass pane has a thickness ranging from about 2.3 mm to about 12 mm.

20. The process of claim 9 , wherein an interlayer material for laminating said individual electrochromic devices to said separate outer laminate glass pane is selected from the group consisting of polyvinylbutyral, ionomeric materials, ethylenevinyl acetate, polyurethanes, or mixtures thereof.

21. A laminate prepared according to the process of claim 11 , wherein said laminate has an edge strength of at least about 75 MPa.

22. A process of manufacturing an electrochromic device laminate comprising:
providing an electrochromic glass substrate;
fabricating a plurality of electrochromic device precursors on said electrochromic glass substrate;
cutting each of said plurality of electrochromic device precursors into individual electrochromic devices; and
laminating each of said individual electrochromic devices to a separate outer laminate glass pane,
wherein each of said plurality of electrochromic device precursors are cut by electrothermal cutting, and wherein said laminate has an edge strength of at least about 60 MPa.

23. The process of claim 22 , wherein said laminate has an edge strength of a least about 69 MPa.

24. The process of claim 22 , wherein said laminate has an edge strength of at least about 75 MPa.

25. A laminate prepared according to the process of claim 22 .

26. A laminate comprising:
an electrochromic device, said electrochromic device comprising an electrochromic stack on an annealed glass substrate;
an outer laminate glass pane comprising annealed glass; and
an interlayer material sandwiched between said electrochromic device and said outer laminate glass pane,
wherein said laminate has an edge strength of at least 60 MPa.

27. The laminate of claim 26 , wherein said laminate has an edge strength of at least 69 MPa.

28. The laminate of claim 26 , wherein said laminate has an edge strength of at least about 75 MPa.

Assignees

• Sage Electrochromics Inc

Inventors

• Sbar Neil L
• Van Dine John E
• Mccoy Michael A

Classifications

• G02F1/153 Primary

  Constructional details · CPC title

• B32B17/10743

  containing acrylate (co)polymers or salts thereof · CPC title

• B32B17/10761

  containing vinyl acetal · CPC title

• B32B17/10174

  Coatings of a metallic or dielectric material on a constituent layer of glass or polymer · CPC title

• G02F1/1533

  structural features not otherwise provided for · CPC title