Color toner composition
US4954410A · kind A · utility
5Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1989 |
| Grant date | Sep 4, 1990 |
| Priority date | — |
| Expiry date | Feb 24, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0908
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A novel negative charge color toner composition for electrostatic charge development having good light resistance and copy sharpness which contains, as a dyestuff in a toner resin, a 1-amino-2-phenoxy- or 2-thiophenoxy-4-hydroxyanthraquinone whose phenoxy or thophenoxy group is substituted and/or a 1,4-diamino-2,3-phenoxyanthraquinone whose phenoxy group is substitited, which can be conventionally produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.