The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 1989
Filed:
Jul. 02, 1987
Herve Arribart, Soisy-Sous-Montmorency, FR;
Christian Padoy, Gonessee, FR;
Alain Dugast, Paris, FR;
Michel Armond, St. Marin D'Heres, FR;
Francis Defendini, Grenoble, FR;
Bernard Desbat, Pessac, FR;
Saint-Gobain Vitrage, Courbevoie, FR;
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.