Electrochemichromic solutions, processes for preparing and using the same, and devices manufactured with the same
US5500760A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1992 |
| Grant date | Mar 19, 1996 |
| Priority date | — |
| Expiry date | Aug 27, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2001/15145
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to electrochromic solutions and devices manufactured therefrom. More precisely, the present invention relates to electrochemichromic compounds and processes for preparing the same. The present invention also relates to electrochemichromic solutions of such compounds, and those devices manufactured with the same, that demonstrate superior responsiveness to those solutions known heretofore when an applied potential is introduced thereto. And, these solutions, when contained within electrochemichromic devices, demonstrate ultraviolet stability, thermal stability and cycle stability. The responsiveness observed in terms of solution coloring with respect to the solutions, and devices containing the same, of the present invention is of a greater rapidity, intensity and uniformity than those electrochemichromic solutions of the prior art. Preparation of these solutions involve the novel process of pre-treating at least one of the electrochemichromic compounds with a redox agent prior to placing it in contact with the other electrochemichromic compound. Moreover, the present invention relates to methods of preparing such novel solutions and processes for using…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.