Toner
US9897933B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2017 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Jan 25, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09328
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is a toner that is excellent in development durability and has excellent solid followability even when the amount of the toner in a toner cartridge is small. The toner includes toner particles each having a surface layer containing an organosilicon polymer, in which: the organosilicon polymer includes a siloxane-based polymer having partial structures represented by the following formulae (1) and (2); and in a chart obtained by 29Si-NMR measurement of a tetrahydrofuran-insoluble matter of the toner particles, an area RT3 of a peak assigned to the partial structure represented by the following formula (1) and an area RfT3 of a peak assigned to the partial structure represented by the following formula (2) satisfy the following formula (3).0.300>(RfT3/RT3)≧0.010 (3)R—SiO3/2 (1)Rf—SiO3/2 (2)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.