Pyrylium-sensitized leuco base photoconductive compositions and elements containing naphthalene bis-dicarboximide compounds
US4468444A · kind A · utility
13Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1983 |
| Grant date | Aug 28, 1984 |
| Priority date | — |
| Expiry date | Apr 21, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0651
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Photoconductive compositions and elements comprising arylalkane photoconductors and pyrylium sensitizers are stabilized against adverse leuco base color shifts into the ultraviolet to blue spectral region by the incorporation of certain 1,4,5,8-naphthalene bis-dicarboximide compounds. The compositions and elements are particularly suited for electrophotographic image formation and thereafter for contact printing of the image onto sensitive material by ultraviolet or blue transmission through the composition or element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.