Toner used for developing an electrostatic charge image
US5679491A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1996 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | Dec 3, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0975
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner used for developing an electrostatic charge image containing a coloring agent, a quaternary ammonium salt compound and polyolefin is disclosed. The quaternary ammonium salt compound is represented by formula (A) and have solubility to water of not more than 2.0%, and number-averaged dispersed diameter of polyolefin is 0.1 .mu.m-1.0 .mu.m. The toner satisfies formula (1); EQU (1) 17<D.sub.T /D.sub.CCA <90 wherein, D.sub.T is a volume-averaged particle size of the toner particle, and D.sub.CCA represents a number-averaged diameter of quaternary ammonium salt compound dispersed in a toner particle. ##STR1## The definition is described in the specification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.