Switchable electrical composite pane array

• US 10,207,480 B2
• Filed: 06/28/2013
• Issued: 02/19/2019
• 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
• Primary Examiner(s): Vineis, Frank J
• Assistant Examiner(s): Sawdon, Alicia J
• Application Number:
  US14/417,788
• Publication Number:
  US 20150298431A1
• Time in Patent Office: 2,062 Days
• 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:

a first pane;

a second pane;

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 suspended particle device (SPD) film arranged therebetween; and

an edge sealing comprising an at least 1-mm-deep notch formed in a surface region of the intermediate layer away from the first pane and the second pane that is filled with polyisobutylene (PIB) and/or polyurethane (PU),

wherein the notch reaches the SPD film and extends laterally to the outer edges of the first and the second thermoplastic polymer films, and

wherein the notch is formed after laminating the first pane, the second pane, and the intermediate layer.

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

3. The switchable composite pane arrangement according to claim 1, wherein the first and second thermoplastic polymer films contain polyethyl vinyl acetate.

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

m to 500 μ

m.

5. The switchable composite pane arrangement according to claim 1, wherein the SPD film has a thickness from 150 μ

m to 400 μ

m.

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

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

arranging a suspended particle device (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,

after laminating the first pane, the second pane, and the intermediate layer, milling or scratching a notch at least 1 mm deep in a surface region of the intermediate layer away from the first pane and the second pane, wherein the notch reaches the SPD film and extends laterally to the outer edges of the first and the second thermoplastic polymer films, and

filling the notch with polyisobutylene (PIB) and then polyurethane (PU) to provide an edge sealing arranged in the edge region of the intermediate layer.