Toner for electrophotography, and image forming process, process cartridge and image forming apparatus using the same
US7172844B2 · kind B2 · utility
22Cited by
13References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 24, 2004 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Dec 4, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0821
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner for electrophotography contains a binder resin, a colorant and a releasing agent and has a viscosity, a storage modulus (G′) and a loss modulus (G″), in which the viscosity is 1×103 Pa·s or more and a loss tangent (tan δ) as the ratio of G′ to G″ is 0.4 or more at temperatures from 140° C. to 170° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.