Imaging materials comprising electrically conductive polymer particle layers
US6709808B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2002 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | May 6, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G7/0053
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Image-forming materials including photographic, thermographic, and thermally-developable imaging materials include one or more transparent electrically conductive, non-charging layers to provide antistatic control on one or both sides of subbed or unsubbed supports. The electrically conductive, non-charging layers comprise colloidal, electrically conductive polymer particles that can be dispersed in a film-forming binder in an amount to provide from about 10 to about 90 volume % of polymer particles. Particularly useful polymer particles include pyrrole-containing, thiophene-containing, and aniline-containing polymers. The particles generally exhibit a packed powder specific resistivity of 105 ohm-cm or less and generally have a mean diameter of 0.5 &mgr;m or less. The electrically conductive, non-charging layers generally exhibit a surface electrical resistivity of less than 1×1012 ohm per square.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.