Electrophotographic belt and electrophotographic image forming apparatus
US10831134B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2018 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Jun 22, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/1623
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present disclosure provides an electrophotographic belt which contributes to stable formation of an electrophotographic image of high quality. The electrophotographic belt includes a base layer and a surface layer, wherein the surface layer contains a binder resin, a perfluoropolyether and a comb-shaped graft copolymer, the comb-shaped graft copolymer is a copolymer of an acrylate or methacrylate having a fluoroalkyl group and a methacrylate macromonomer having a polymethyl methacrylate as a side chain, the comb-shaped graft copolymer has a number average molecular weight of 11000 or higher and 15000 or lower, and the comb-shaped graft copolymer has a peak-top molecular weight of 24000 or higher and 40000 or lower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.