Electrophotographic toner, method for producing the same, electrophotographic developer, method for producing the developer, and image forming method
US7488562B2 · kind B2 · utility
4Cited by
1References
14Claims
0Family size
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Key dates
| Filing date | Dec 13, 2005 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | Jun 11, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09392
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided are an electrophotographic toner, comprising a binder resin containing a coloring agent, a crystalline resin and an amorphous resin, wherein the crystalline resin has two or more peaks in weight-average molecular weight as determined by gel permeation chromatography, one of the peaks has a weight-average molecular weight in the range of 15,000 to 40,000, and another peak has a weight-average molecular weight in the range of 2,000 to 10,000 and a production method thereof, and an electrophotographic developer and an image-forming process using the electrophotographic toner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.