Toner compositions with negative charge enhancing additives
US4939061A · kind A · utility
1Cited by
5References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 1989 |
| Grant date | Jul 3, 1990 |
| Priority date | — |
| Expiry date | May 25, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09783
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A negative charged toner composition comprised of resin particles, pigment particles, and as a charge enhancing additive dithiolene complexes of the formulas of FIGS. 1,2,3 or 4, wherein X is selenium or sulfur, M is a metal, R is alkyl, Y is a cation, Z represents zinc, and n represents the valence of the cation and anion components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.