Electrophotographic member, process cartridge and electrophotographic image forming apparatus
US10539891B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2019 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Jun 7, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0863
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is provided an electrophotographic member which suppresses scraping and contamination of a surface even in the durable use of multiple sheet printing under a high temperature environment. The electrophotographic member has an electroconductive substrate and a single elastic layer as a surface layer, the surface layer includes a binder resin and carbon black dispersed in the binder resin, the carbon black has a volatile content of 0.4% or more, the binder resin includes a crosslinked urethane resin and a crosslinked acrylic resin, and the surface layer has a first area in which the crosslinked urethane resin and the crosslinked acrylic resin form an interpenetrating polymer network structure, the first area being from an outer surface of the surface layer to a depth of 0.1 μm in the surface layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.