Toner
US8877417B2 · kind B2 · utility
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1Claims
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Key dates
| Filing date | Jul 19, 2011 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | Jul 19, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/08797
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a toner formed of toner particles which include a colorant, a wax, and a binder resin containing a crystalline resin (a) primarily composed of a polyester, the crystalline resin has an endothermic peak temperature (Tp) in a range of 50° C. to 80° C., and in a viscoelasticity measurement of the toner, G″(Tp−10) is in a range of 5.0×107 to 5.0×108 Pa, G″(Tp+10) is in a range of 5.0×105 to 5.0×106 Pa, and G″(Tp−20), G″(Tp−10), G″(Tp+10), and G″(Tp+30) satisfy specific relationships.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.