Invention Grant
- Patent Title: Electrophotographic member and electrophotographic image forming apparatus
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Application No.: US17363311Application Date: 2021-06-30
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Publication No.: US12158711B2Publication Date: 2024-12-03
- Inventor: Keisuke Abe , Masahiro Takenaga , Kenji Onuma
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: VENABLE LLP
- Priority: JP2020-117600 20200708,JP2021-098187 20210611
- Main IPC: G03G15/16
- IPC: G03G15/16

Abstract:
An electrophotographic member comprising a base layer and a surface layer, the surface layer including at least one of an acrylic resin and a methacrylic resin, perfluoropolyether having a specified structure and a fluorine-containing copolymer, the fluorine-containing copolymer having a first polymerized unit of at least one of methyl acrylate and methyl methacrylate, and a second polymerized unit of at least one of methyl acrylate having a fluoroalkyl group and methyl methacrylate having a fluoroalkyl group, a molar ratio between the first polymerized unit and the second polymerized unit being 7 to 12, the fluorine-containing copolymer having Mw of 80000 or more and 150000 or less, and the ratio between Mn and Mw (Mw/Mn) being 3.0 or more and 6.5 or less.
Public/Granted literature
- US20220011695A1 ELECTROPHOTOGRAPHIC MEMBER AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS Public/Granted day:2022-01-13
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