Electrically conductive transparent film and coating composition for forming such film
US5908585A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Apr 23, 1998 |
| Grant date | Jun 1, 1999 |
| Priority date | — |
| Expiry date | Apr 23, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/924
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A transparent electrically conductive film having a surface resistivity of 10.sup.2 -10.sup.10 .OMEGA./.sup..quadrature., an overall light transmittance of at least 70%, and a haze value of at most 20% comprises an organic or inorganic transparent matrix having dispersed therein 0.01%-1 wt % of hollow carbon microfibers and 1%-40 wt % of an electrically conductive metal oxide powder (such as antimony-doped tin oxide) with an average primary particle diameter of 0.5 .mu.m or smaller. The matrix can be an organic polymer which is thermoplastic, thermosetting, or curable by ultraviolet radiation, or a metal oxide sol which can form an inorganic glass film, a hydrolyzable or heat decomposable organic metal compound, or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.