Variable transmission glazings and method of making same
First Claim
Patent Images
1. A coated laminate comprising, in succession:
- (a) a first transparent substrate;
(b) a first layer of an electroconductive substance;
(c) a layer of an electrochromic material;
(d) an electrolytic layer comprising a substantially anhydrous solid solution of phorphoric acid in polyoxyethylene;
(e) a second layer of an electroconductive substance; and
(f) a second transparent substrate,wherein at least a portion of each said layer b through e is positioned in an electrical contact relation with each adjacent layer to facilitate the passage therethrough of an electrical current.
5 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to coated glass substrates for obtaining a variable degree of light transmission therethrough. The coated substrate comprises successively, (1) a first transparent support plate, preferably formed of glass, (2) a transparent electroconductive layer, (3) a layer of an electrochromic material, (4) a proton conductive electrolytic layer having an organic polymer base, (4a) an optional counterelectrode layer, (5) a second electroconductive layer and (6) a second transparent support plate. A proton conductive polymer is selected for the electrolyte whose conductivity is greater than or equal to ##EQU1## wherein the layer has a thickness of less than 50 micrometers.
34 Citations
23 Claims
-
1. A coated laminate comprising, in succession:
-
(a) a first transparent substrate; (b) a first layer of an electroconductive substance; (c) a layer of an electrochromic material; (d) an electrolytic layer comprising a substantially anhydrous solid solution of phorphoric acid in polyoxyethylene; (e) a second layer of an electroconductive substance; and (f) a second transparent substrate, wherein at least a portion of each said layer b through e is positioned in an electrical contact relation with each adjacent layer to facilitate the passage therethrough of an electrical current. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A coated optical glazing comprising in succession:
-
(a) a first glass plate; (b) a first transparent electrode, said first electrode comprising a layer of a first electroconductive substance; (c) a layer of tungsten oxide; (d) a substantially anhydrous layer of a polyoxyethylene film; (e) a second transparent electrode, said second electrode comprising a layer of a second electro-conductive substance, which second substance may be the same as or different than said first electroconductive substance; and (f) a second glass plate, wherein at least a portion of each said layer b through e is positioned in an electrical contact relation with each adjacent layer to facilitate the passage therethrough of an electrical current. - View Dependent Claims (11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22)
-
-
17. A variable light transmission glazing comprising, in succession:
-
(a) a first glass plate; (b) a first electroconductive layer of indium oxide doped with tin oxide, said first electroconductive layer measuring about 300 nanometers in thickness; (c) a layer of tungsten oxide; (d) a substantially anhydrous layer of a polyoxyethylene film having a proton conductivity at about ##EQU8## (e) a second electroconductive layer of indium oxide doped with tin oxide, said second electroconductive layer measuring about 300 nanometers in thickness; and (f) a second glass plate, where at least a portion of each said layer b through e is positioned in an electrical contact relation with each adjacent layer to facilitate the passage therethrough of an electrical current.
-
-
23. A glass laminate comprising:
-
a pair of glass sheets in parallel spaced relation, an inner surface of each sheet having applied thereto a layer of a conductive metal oxide coating covering at least a portion of said surface; and an electrochromic laminate comprising a layer of an electrolytic material and a layer of an electrochromic material in electrical contact with said electrolytic material, said electrolytic material comprising a substantially anhydrous solid solution of phosphoric acid in polyoxyethylene; wherein said electrochromic laminate is placed between said conductive metal oxide layers and in electrical contact therewith to provide a conductive path for current flow between said glass sheets; and said electrolytic material is capable of transferring protons between one of said electroconductive layers and said electrochromic material; and
further wherein said electrochromic material is capable of changing color upon passage of protons therethrough.
-
Specification