Resin particle, toner, and image forming method and process cartridge using the same
US8293442B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 22, 2009 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Jun 14, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a resin particle having a volume average particle diameter of 10 nm to 500 nm, obtained by polymerizing an addition polymerizable monomer containing a silsesquioxane (a) represented by Formula (I) or by copolymerizing the silsesquioxane (a) with an addition polymerizable monomer (b),where R1 to R7 each independently represent a group selected from the group consisting of hydrogen, alkyl having 1 to 40 carbon atoms, substituted or unsubstituted aryl, and substituted or unsubstituted arylalkyl; any hydrogen in the alkyl group is optionally substituted by fluorine and any —CH2— is optionally substituted by —O—, —CH═CH—, cycloalkylene or cycloalkenylene; any hydrogen in alkylene in the arylalkyl group is optionally substituted by fluorine and any —CH2— is optionally substituted by —O— or —CH═CH—; and A1 represents an addition polymerizable functional group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.