Invention Grant
- Patent Title: Roll member, charging member, charging device, process cartridge, and image forming apparatus
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Application No.: US17945291Application Date: 2022-09-15
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Publication No.: US11754937B1Publication Date: 2023-09-12
- Inventor: Yuki Tagawa , Ryo Sekiguchi
- Applicant: FUJIFILM Business Innovation Corp.
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Business Innovation Corp.
- Current Assignee: FUJIFILM Business Innovation Corp.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP 22026157 2022.02.22
- Main IPC: G03G15/02
- IPC: G03G15/02 ; B32B27/08 ; D01F6/90 ; G03G15/16 ; G03G15/08
Abstract:
A roll member includes a conductive elastic layer, and a surface layer provided on the conductive elastic layer. The surface layer contains a crosslinked product of crosslinkable nylon, the crosslinking degree of the surface layer specified by formula (1) below is 0.3 or more and 0.7 or less, and the thermal degradation index of the surface layer specified by formula (2) below is 2.1 or more and 2.3 or less.
Crosslinking degree=absorbance at 1078 cm−1÷absorbance at 2935 cm−1 Formula (1):
Thermal degradation index=absorbance at 1638 cm−1÷absorbance at 1543 cm−1 Formula (2):
Crosslinking degree=absorbance at 1078 cm−1÷absorbance at 2935 cm−1 Formula (1):
Thermal degradation index=absorbance at 1638 cm−1÷absorbance at 1543 cm−1 Formula (2):
Public/Granted literature
- US20230266691A1 ROLL MEMBER, CHARGING MEMBER, CHARGING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS Public/Granted day:2023-08-24
Information query
