Electrographic recording element with reduced humidity sensitivity
US5192613A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1990 |
| Grant date | Mar 9, 1993 |
| Priority date | — |
| Expiry date | Nov 30, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31993
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Electrographic recording element with reduced humidity sensitivity comprising PA0 (1) a base, e.g., paper, polymer film, PA0 (2) a conductive layer of a continuous coating of an electroconductive composition comprising PA1 (a) polymeric binder, PA1 (b) electroconductive powder comprising amorphous silica or a silica-containing material in association with a two-dimensional network of antimony-containing tin oxide crystallites in which the antimony content ranges from 1 to about 30% by weight of tin oxide; and PA0 (3) a dielectric layer. Mixtures of two or more different sized electroconductive powder particles can be used. The electrographic recording element is useful for recording high-speed computer element, e.g., in geophysical mapping, weather map printing, architectural and engineering drawings, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.