INSULATING GLASS WINDOW HAVING HIGH THERMAL INSULATION AND REDUCED TRANSMISSIVITY FOR IR RADIATION

• US 20150330137A1
• Filed: 11/29/2013
• Published: 11/19/2015
• Est. Priority Date: 12/04/2012
• Status: Abandoned Application

• Current Assignee: Bayer Materialscience AG (Covestro AG)
• Original Assignee: Bayer Materialscience AG (Covestro AG)
• Inventors: MEYER, Alexander, KUHLMANN, Timo, OSER, Rafael
• Application Number:
  US14/648,965
• Publication Number:
  US 20150330137A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B32B 17/10055 with at least one intermediate air space
• CPC Class Codes: B32B 17/10752 containing polycarbonate
• CPC Class Codes: B32B 2250/03 3 layers
• CPC Class Codes: B32B 2250/40 Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
• CPC Class Codes: B32B 2255/10 on synthetic resin layer or on natural or synthetic rubber layer
• CPC Class Codes: B32B 2307/304 Insulating
• CPC Class Codes: B32B 2419/00 Buildings or parts thereof walls, panels B32B2607/00
• CPC Class Codes: B32B 2605/08 Cars
• CPC Class Codes: B32B 2605/18 Aircraft blades, propellers B32B2603/00
• CPC Class Codes: C08K 3/013 Fillers, pigments or reinforcing additives
• CPC Class Codes: C08K 3/20 Oxides; Hydroxides graphene oxides C08K3/042
• CPC Class Codes: C08K 3/22 of metals
• CPC Class Codes: C08K 3/38 Boron-containing compounds
• CPC Class Codes: E06B 3/6715 specially adapted for increased thermal insulation or for controlled passage of light E06B3/66323 takes precedence; coating of glass pains C03C17/00; devices or arrangements for controlling the intensity, colour, phase, polarisation or direction of light G02F1/00

Abstract

The invention relates to insulating glass units having high thermal insulation and reduced transmissivity for IR radiation comprising at least two spaced-apart glass panes and at least one spaced-apart sheet of special polycarbonate containing a gas mixture within these units.

Claims

1-14. -14. (canceled)

15. A triple element comprising, in the following sequence:

A) a first glass pane,

B) a further pane comprising or consisting of polycarbonate, and

C) a further glass pane,

characterized in that a filler gas is present between the individual panes, preferably air, Ar, Kr, Xe, He, SF₆, or CO₂, and that the polycarbonate comprises at least one nanoscale inorganic pigment.

16. The triple element as claimed in claim 15, characterized in that the average particle diameter of the nanoscale inorganic pigment is less than 200 nm.

17. The triple element as claimed in claim 15, characterized in that the polycarbonate comprises a nanoscale pigment based on tungstate.

18. The triple element as claimed in claim 15, characterized in that at least one of the panes A), B), or C) has also been coated.

19. The triple element as claimed in claim 15, characterized in that the filler gas is air, argon, or krypton.

20. The triple element as claimed in claim 19, characterized in that the filler gas is argon or krypton.

21. The triple element as claimed in claim 15, characterized in that the distance between the panes is from 6 mm to 12 mm, and the thickness of the polycarbonate pane is from 2 mm to 15 mm.

22. The triple element as claimed in claim 17, characterized in that the concentration of tungstate, based on solids content, is from 0.0001% by weight to 10.0000% by weight in the entire polymer composition.

23. The triple element as claimed in claim 22, characterized in that the concentration of tungstate, based on the solids content, is from 0.0001% by weight-0.0500% by weight in the entire polymer composition.

24. The triple element as claimed in claim 17, characterized in that the central polycarbonate pane comprises cesium tungstate or zinc-doped cesium tungstate.

25. The triple element as claimed in claim 15, characterized in that the polycarbonate comprises at least one UV absorber based on benzotriazoles, triazines, and biphenyltriazines, and at least one mold-release agent.

26. The triple element as claimed in claim 15, characterized in that the central pane B) is a multilayer system consisting of a superposed UV-protection layer and of a polycarbonate substrate layer situated thereunder.

27. The triple element as claimed in claim 15, characterized in that the polycarbonate comprises triphenylphosphine.

28. The use of a triple element as claimed in claim 15 for glazing systems, including architectural glazing, windows of rail vehicles and of aircraft, safety glazing, roof systems, and other glazing in buildings.