Invention Grant
- Patent Title: Magnetic carrier and two-component developer
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Application No.: US14831139Application Date: 2015-08-20
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Publication No.: US09599920B2Publication Date: 2017-03-21
- Inventor: Nobuyoshi Sugahara , Hironori Minagawa , Yuto Onozaki , Wakashi Iida
- 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 & Scinto
- Priority: JP2014-171139 20140826; JP2015-161033 20150818
- Main IPC: G03G9/113
- IPC: G03G9/113 ; G03G9/107

Abstract:
The present invention is a magnetic carrier that has a magnetic carrier core and a resin coat layer, wherein the resin coat layer contains a coat resin A and a coat resin B, the coat resin A is a polymer obtained by polymerization of a (meth)acrylate ester monomer that has an alicyclic hydrocarbon group, the coat resin B is a polymer obtained by polymerization of (meth)acrylic monomer and has a polar group and an acid value of 4.0 to 50.0 mg KOH/g, the content of the coat resin A is 10 to 90 mass %, the content of the coat resin B is 10 to 90 mass %, and an acid value of the resin component in the resin coat layer is 1.0 to 10.0 mg KOH/g.
Public/Granted literature
- US20160062257A1 MAGNETIC CARRIER AND TWO-COMPONENT DEVELOPER Public/Granted day:2016-03-03
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