Toner
US9733584B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2016 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Apr 1, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09725
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is a toner that is improved in transferability as compared to the related art and that keeps its effects through repeated use. In particular, provided is a toner suppressed in dependency on transfer current control. The toner includes a toner particle including a surface layer containing an organosilicon polymer and a resin having an ionic functional group, the organosilicon polymer having a partial structure represented by the following formula (1), the toner particle containing 5.0% or more of the partial structure represented by the formula (1) per 1.000 silicon atom contained in the organosilicon polymer, the resin having an ionic functional group having a pKa of 6.0 or more and 9.0 or less:R0—SiO3/2 (1)in the formula (1), R0 represents an alkyl group having 1 or more and 6 or less carbon atoms, or a phenyl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.