Invention Grant
- Patent Title: Method for producing liquid developer
- Patent Title (中): 液体显影剂的制造方法
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Application No.: US12679822Application Date: 2008-09-26
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Publication No.: US08722302B2Publication Date: 2014-05-13
- Inventor: Hirohito Maeda , Katsutoshi Okamoto , Takaaki Yodo , Naoya Inazumi , Koji Iwase
- Applicant: Hirohito Maeda , Katsutoshi Okamoto , Takaaki Yodo , Naoya Inazumi , Koji Iwase
- Applicant Address: JP Osaka
- Assignee: Sakata Inx Corp.
- Current Assignee: Sakata Inx Corp.
- Current Assignee Address: JP Osaka
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JP2007-254484 20070928
- International Application: PCT/JP2008/067520 WO 20080926
- International Announcement: WO2009/041634 WO 20090402
- Main IPC: G03G9/13
- IPC: G03G9/13

Abstract:
The present invention provides a method for producing a liquid developer for electrophotography or electrostatic recording obtained by a coacervation method, which sufficiently maintains the charging property and has good dispersion stability of colored resin particles, as well as a liquid developer obtained by the method.A method for producing a liquid developer by a coacervation method, wherein a colored resin particle is dispersed in an insulating hydrocarbon dispersion medium in the presence of a particle dispersant and an acid group-containing resin, and the particle dispersant is a reaction product of a polyamine compound and a self-condensation product of a hydroxycarboxylic acid.
Public/Granted literature
- US20100323291A1 METHOD FOR PRODUCING LIQUID DEVELOPER Public/Granted day:2010-12-23
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