Colloidal vanadium oxide having improved stability
US6110656A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1998 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | Sep 28, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/853
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In accordance with one embodiment of the invention, a process for forming an electrically conductive layer is disclosed comprising (i) intercalating colloidal vanadium oxide with a water soluble vinyl-containing polymer, (ii) incorporating the intercalated colloidal vanadium oxide in a coating composition, and (iii) coating the coating composition on a substrate. In accordance with a second embodiment of the invention, a composition for forming an electrically conductive element or layer thereof is disclosed comprising (i) colloidal vanadium oxide intercalated with a water soluble vinyl-containing polymer and (ii) a binder which is distinct from the water soluble vinyl-containing polymer. Intercalation of vanadium oxide gels with water-soluble polymeric species in accordance with of the present invention results in a vanadium oxide gel having improved solution stability and reduced impact of solution aging on conductivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.