Liquid developer compositions
US5783349A · kind A · utility
5Cited by
12References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1997 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Jun 30, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/135
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid developer comprised of a nonpolar liquid, resin, optional colorant, a charge director, and an optional charge control agent, and wherein the charge director is comprised of a mixture of phosphoric acid esters I, II and III, and IV a nonpolar liquid soluble organic aluminum complex of the formulas ##STR1## hydrates thereof or mixtures thereof, wherein R.sub.1 is selected from the group consisting of hydrogen and alkyl, and n represents a number of from about 1 to about 6.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.