Pane with thermal radiation reflecting coating

Patent metadata

Field	Value
Publication number	US-9650291-B2
Application number	US-201314769226-A
Country	US
Kind code	B2
Filing date	Dec 19, 2013
Priority date	Feb 20, 2013
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

The present invention relates to a pane with thermal radiation reflecting coating, comprising at least one substrate ( 1 ) and at least one thermal radiation reflecting coating ( 2 ) at least on the interior-side surface of the substrate ( 1 ), wherein
the pane has transmittance in the visible spectral range of less than 5%, and the coating ( 2 ), proceeding from the substrate ( 1 ), comprises at least:
one adhesive layer ( 3 ) that contains at least one material with a refractive index of less than 1.8, one functional layer ( 4 ) that contains at least one transparent, electrically conductive oxide, one optically high-refractive-index layer ( 5 ) that contains at least one material with a refractive index greater than or equal to 1.8, and one optically low-refractive-index layer ( 6 ) that contains at least one material with a refractive index of less than 1.8.

First claim

The invention claimed is:

1. An article comprising a pane comprising a thermal radiation reflecting coating that separates an interior of the article from an external environment,
wherein the article is selected from the group consisting of a building, an apparatus for land transportation, an apparatus for air transportation, and an apparatus for water transportation,
wherein the pane comprising at least one substrate and at least one thermal radiation reflecting coating situated at least on an interior-side surface of the substrate,
wherein the pane has a transmittance in the visible spectral range of less than 5%; and
wherein the coating, in order proceeding from the substrate, comprises at least
one adhesive layer comprising at least one material with a refractive index of less than 1.8,
one functional layer comprising at least one transparent, electrically conductive oxide,
one optically high-refractive-index layer comprising at least one material with a refractive index greater than or equal to 1.8, and
one optically low-refractive-index layer comprising at least one material with a refractive index of less than 1.8.

2. The article of claim 1 , wherein the pane is a composite pane, and wherein the substrate is bonded to a cover pane via at least one thermoplastic intermediate layer.

3. The article of claim 1 , wherein the pane has transmittance in the visible spectral range of less than 4%.

4. The article of claim 1 , wherein the adhesive layer of the pane comprises at least one oxide.

5. The article of claim 1 , wherein the adhesive layer of the pane has a thickness from 10 nm to 150 nm.

6. The article of claim 1 , wherein the functional layer of the pane comprises at least fluorine-doped tin oxide, antimony-doped tin oxide, indium tin oxide, or a mixture thereof.

7. The article of claim 1 , wherein the functional layer of the pane has a thickness from 50 nm to 150 nm.

8. The article of claim 1 , wherein the optically high-refractive-index layer of the pane comprises at least one oxide or nitride.

9. The article of claim 1 , wherein the optically high-refractive-index layer of the pane has a thickness of at least 1 nm and of less than 20 nm.

10. The article of claim 1 , wherein the optically low-refractive-index layer of the pane comprises at least one oxide.

11. The article of claim 1 , wherein the optically low-refractive-index layer of the pane has a thickness from 40 nm to 130 nm.

12. The article of claim 1 , wherein a cover layer comprising at least one oxide is arranged above the optically low-refractive-index layer of the pane.

13. The article of claim 1 , wherein a ratio of an interior-side transmittance level T L in the visible spectral range to an interior-side reflection level R L in the visible spectral range, T L /R L , of the pane is greater than or equal to 0.6.

14. The article of claim 1 , which is a rear window, side window, and/or roof panel of a train, ship, or motor vehicle.

15. A method for producing the article of claim 1 , the method comprising applying at least
(a) the adhesive layer,
(b) the functional layer,
(c) the optically high-refractive-index layer, and
(d) the optically low-refractive-index layer

in succession on the interior-side surface of the substrate, to form the pane; and
inserting the pane in an opening of the article.

Assignees

• Saint Gobain

Inventors

• Manz Florian
• Hagen Jan

Classifications

• B32B17/10174

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

• C03C17/3417

  all coatings being oxide coatings · CPC title

• C03C2217/948

  Layers comprising indium tin oxide [ITO] · CPC title

• C23C14/0036

  Reactive sputtering · CPC title

• B32B17/10431

  Specific parts for the modulation of light incorporated into the laminated safety glass or glazing · CPC title