Toner
US6203959A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2000 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | Mar 8, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/08782
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic toner is formed of a resinous composition including a binder resin and a wax (A). The wax (A) contains at least 92 wt. % thereof of n (normal)-paraffin comprising a plurality of n-paraffin species having different numbers of carbon atoms, and provides a DSC (differential scanning calorimetry)-heat-absorption curve exhibiting a maximum heat-absorption peak showing a peaktop temperature of 70-90.degree. C. and a half-value width of at most 12.degree. C. As a result of the n-paraffin-rich characteristic and the DSC-thermal characteristic, the wax can exhibit an improved fixability-improving effect without showing an excessive plasticizing effect, whereby the toner can exhibit good fixability as well as good flowability and storage stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.