Variable transmission glazings and method of making same
US4844591A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1987 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | Jul 2, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1525
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.