Developing member, process cartridge and electrophotographic apparatus
US8874012B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2013 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Nov 25, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49544
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A high quality developing member that is excellent in deformation recovery property under a high temperature and that also satisfies filming resistance under a low temperature is provided. The developing member of the present invention includes a mandrel, an elastic layer formed on the outer periphery surface of the mandrel, and a surface layer covering the outer periphery surface of the elastic layer, wherein the surface layer contains a first resin and a second resin, the first resin has a particular structure between adjacent two urethane linkages, and the second resin is a resin having a particular structure and having a glass transition point Tg of 20° C. or higher and 120° C. or lower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.