Magnetic toner
US8227162B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2010 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Oct 5, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0839
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
To provide a toner excellent in low-temperature fixability, releasing performance, and development stability in long-term use under a high-temperature and high-humidity environment, provided is a magnetic toner including: magnetic toner particles each containing at least a binder resin and a magnetic particles; and an inorganic fine powder, in which: the magnetic particles is a treated magnetic particles treated with a silane compound; the treated magnetic particles has a water adsorption per unit area based on a BET specific surface area of 0.300 mg/m2 or less; portion of styrene extractables constitutes 25 mass % or less among the silane compound in the treated magnetic particles; and the silane compound with which the treated magnetic particles is treated contains a compound having a hydrocarbon group having 2 or more and 4 or less carbon atoms as a main component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.