SWITCHABLE ELECTRICAL COMPOSITE PANE ARRAY

• US 20150298431A1
• Filed: 06/28/2013
• Published: 10/22/2015
• Est. Priority Date: 08/09/2012
• Status: Active Grant

• Current Assignee: Saint-Gobain Glass France (Compagnie De Saint-Gobain)
• Original Assignee: Saint-Gobain Glass France (Compagnie De Saint-Gobain)
• Inventors: VON DER WEIDEN, Ingo, SZNERSKI, Andreas, PENNERS, Franz, MENNIG, Julius
• Granted Patent: US 10,207,480 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B29C 65/002 Joining methods not otherwise provided for
• CPC Class Codes: B29K 2629/00 Use of polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals or derivatives thereof, for preformed parts, e.g. for inserts
• CPC Class Codes: B29K 2631/00 Use of polyvinylesters or derivatives thereof for preformed parts, e.g. for inserts
• CPC Class Codes: B29K 2709/08 Glass
• CPC Class Codes: B29L 2011/00 Optical elements, e.g. lenses, prisms
• CPC Class Codes: B32B 17/10005 laminated safety glass or glazing
• 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 17/10302 Edge sealing
• CPC Class Codes: B32B 17/10532 Suspended particle layer
• CPC Class Codes: B32B 17/10761 containing vinyl acetal
• CPC Class Codes: B32B 17/10788 containing ethylene vinylacetate
• CPC Class Codes: B32B 2250/03 3 layers
• CPC Class Codes: B32B 2307/40 having particular optical properties light or UV resistant B32B2307/71
• CPC Class Codes: B32B 2315/08 Glass
• CPC Class Codes: B32B 2329/06 PVB, i.e. polyinylbutyral
• CPC Class Codes: B32B 2331/04 Polymers of vinyl acetate, e.g. PVA
• CPC Class Codes: B32B 2367/00 Polyesters, e.g. PET, i.e. polyethylene terephthalate
• CPC Class Codes: B32B 2419/00 Buildings or parts thereof walls, panels B32B2607/00
• CPC Class Codes: B32B 2605/006 Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings
• CPC Class Codes: B32B 37/185 : Laminating sheets, panels or inserts between two discrete plastic layers
• CPC Class Codes: B32B 38/0004 : Cutting, tearing or severing, e.g. bursting; Cutter details cutting in general B26D; laminating combined with punching or perforating B32B38/04; removing all or part of the layers B32B38/10; cutting in combination with laying up and registration B32B38/185 takes precedence
• CPC Class Codes: B60J 3/04 : adjustable in transparency
• CPC Class Codes: E06B 2009/2464 : featuring transparency control by applying voltage, e.g. LCD, electrochromic panels
• CPC Class Codes: E06B 9/24 : Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blindsoperating, guiding or securing devices or arrangements for roll-type closures E06B9/56; free-hanging flexible screens A47H23/00
• CPC Class Codes: G02F 1/172 : based on a suspension of orientable dipolar particles, e.g. suspended particles displays
• CPC Class Codes: G02F 2201/083 : infrared absorbing
• CPC Class Codes: G02F 2202/025 : thermocurable

Abstract

A composite switchable pane array, having: a first pane; a second pane, and an intermediate layer arranged therebetween, wherein the intermediate layer has at least one first thermoplastic polymer film and one second thermoplastic polymer film, and an SPD film arranged therebetween; and an edge sealing arranged in the outer edge region of the intermediate layer, containing a polyimide (PI) and/or polyisobutylene (PIB).

Claims

1. A switchable composite pane arrangement comprising at least:

a first pane,

a second pane, and

an intermediate layer arranged therebetween, wherein the intermediate layer contains at least one first thermoplastic polymer film and one second thermoplastic polymer film as well as one SPD film arranged therebetween, and

an edge sealing arranged in the outer edge region of the intermediate layer, containing a polyimide (PI) and/or polyisobutylene (PIB).

2. The switchable composite pane arrangement according to claim 1, wherein the edge sealing covers the SPD film in the outer edge region and runs with a length of at least 1 mm above and below the inner surfaces of the SPD film.

3. The switchable composite pane arrangement according to claim 2, wherein the edge sealing comprises a polyimide film.

4. The switchable composite pane arrangement according to claim 1, wherein an at least 1-mm-deep notch in the region of the intermediate layer is filled with polyisobutylene (PIB) and/or polyurethane (PU).

5. The switchable composite pane arrangement according to claim 1, wherein a third thermoplastic polymer film is arranged between the first pane and the second thermoplastic polymer film.

6. The switchable composite pane arrangement according to claim 5, wherein an IR-radiation-reflective coating is arranged between the third thermoplastic polymer film and the second thermoplastic polymer film.

7. The switchable composite pane arrangement according to claim 6, wherein the IR-radiation-reflective coating contains niobium, tantalum, molybdenum, zirconium, silver, gold, aluminum, nickel, chromium, copper, and/or mixtures or alloys thereof.

8. The switchable composite pane arrangement according to claim 1, wherein the thermoplastic polymer films contain PVB (polyvinyl butyral) and/or EVA (polyethyl vinyl acetate), particularly preferably EVA (polyethyl vinyl acetate).

9. The switchable composite pane arrangement according to claim 1, wherein the SPD film has an external edge set back by 1 mm to 4 mm (cut-out) relative to the first thermoplastic polymer film and the second thermoplastic polymer film.

10. The switchable composite pane arrangement according to claim 1, wherein the SPD film has a thickness from 100 μ

m to 500 μ

m, preferably 150 μ

m to 400 μ

m.

11. The switchable composite pane arrangement according to claim 1, wherein the SPD film comprises an electrical contact.

12. The switchable composite pane arrangement according to claim 1, wherein the edge sealing includes a polyacrylic adhesive.

15. A method comprising:

providing the switchable composite pane arrangement according to claim 1 and,

using the arrangement as motor vehicle glazing, ship glazing, train glazing, aircraft glazing, and/or architectural glazing.

13. A method for producing a switchable composite pane arrangement, compromising:

sheathing an SPD film in its outer edge region by an edge sealing, containing a polyimide (PI), thus obtaining a film,

arranging the film between a first thermoplastic polymer film and a second thermoplastic polymer film to form an intermediate layer, wherein the first thermoplastic polymer film and the second thermoplastic polymer film have an outer edge protrusion greater by at least 2 mm than the functional film, and

laminating the intermediate layer and the film between a first pane and a second pane.

14. A method for producing a switchable composite pane arrangement, comprising:

arranging an SPD film between a first thermoplastic polymer film and a second thermoplastic polymer film to form an intermediate layer,

laminating the intermediate layer between a first pane and a second pane,

milling or scratching a notch at least 1 mm deep in the region of the SPD film, and

filling the notch with polyisobutylene (PIB) and then polyurethane (PU).