Invention Grant
- Patent Title: Conductive roll for electrophotographic device
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Application No.: US16987361Application Date: 2020-08-06
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Publication No.: US11029621B2Publication Date: 2021-06-08
- Inventor: Kosuke Minematsu , Yutaka Kadoshima , Yasunori Nimura
- Applicant: Sumitomo Riko Company Limited
- Applicant Address: JP Aichi
- Assignee: Sumitomo Riko Company Limited
- Current Assignee: Sumitomo Riko Company Limited
- Current Assignee Address: JP Aichi
- Agency: JCIPRNET
- Priority: JPJP2018-067039 20180330
- Main IPC: G03G5/10
- IPC: G03G5/10 ; G03G15/02 ; G03G15/08 ; G03G15/16

Abstract:
A conductive roll for electrophotographic device is provided. The conductive roll for electrophotographic device 10 includes a shaft body 12 and a non-foamed elastic body layer 14 formed on an outer periphery of the shaft body 12. The elastic body layer 14 is made of a cross-linked product of a silicone rubber composition containing the following (a) to (d), and a secondary particle diameter of the following (d) in the elastic body layer 14 is within a range of 100 to 500 nm. (a) is an organopolysiloxane, (b) is a crosslinking agent, (c) is a microcapsule catalyst made of fine resin particles which encapsulate a crosslinking catalyst by a resin other than a silicone resin, and (d) is silica with a BET specific surface area of 70 to 350 m2/g.
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