Invention Grant
- Patent Title: Developing member
- Patent Title (中): 发展成员
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Application No.: US13861271Application Date: 2013-04-11
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Publication No.: US08655238B2Publication Date: 2014-02-18
- Inventor: Masashi Uno , Takashi Kusaba , Shohei Urushihara , Ryo Sugiyama
- Applicant: Canon Kabushiki Kaisha
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper and Scinto
- Priority: JP2011-270638 20111209; JP2012-249648 20121113
- Main IPC: G03G15/08
- IPC: G03G15/08

Abstract:
Provided is a developing roller including elastic layer and resin layer adhered to each other and having an appropriately resistance, thereby suppressing fogging. The developing member comprises a mandrel; an elastic layer; and a resin layer, wherein: the resin layer comprises polyurethane resin obtained by isocyanate and polyol; and the elastic layer includes cured silicone rubber composition comprising (a)-(d): (a) organopolysiloxane having two or more alkenyl groups bonded to silicon atom and having methyl group as a group other than the alkenyl bonded to the silicon; (b) organopolysiloxane having three or more hydrogen atoms bonded to silicon atom and having methyl group as a group bonded to the silicon; (c) carbon black; (d) organopolysiloxane represented by formula (1) and having Mw of 18,000-110,000 and Mw/Mn of 1.0-2.0 (R1 represents alkenyl group, R2 represents functional group reacting with isocyanate, and n represents an integer of 1 or more).
Public/Granted literature
- US20130223892A1 DEVELOPING MEMBER Public/Granted day:2013-08-29
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