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Title:
RESIN PARTICLE DISPERSION AND METHOD FOR PRODUCING THE SAME, ELECTROSTATIC IMAGE DEVELOPING TONER, ELECTROSTATIC IMAGE DEVELOPER, DEVELOPING DEVICE, CARTRIDGE, AND IMAGE FORMING APPARATUS
Document Type and Number:
Japanese Patent JP2008115296
Kind Code:
A
Abstract:

To provide an electrostatic image developing toner using a polycondensation resin which is suppressed in fusion (filming) onto a photoreceptor of the toner at high temperature and high humidity and is improved in image quality maintaining property in long-term continuous use; to provide a resin particle dispersion suitably usable for the toner and a method for producing the same; and to provide an electrostatic image developer containing the electrostatic image developing toner, and a developing device, a cartridge, and an image apparatus, using the toner or the developer.

The resin particle dispersion comprises a polymer and a polycondensation resin. The polymer has a hydrophilic monomer unit in an amount of 10-90 mol%, the hydrophilic monomer unit having at least one polar group selected from the group consisting of an acidic polar group, a basic polar group, and a neutral polar group, and has a weight average molecular weight of 10,000 or more. The polycondensation resin is contained in an amount of 50 wt.% or more in the resin solids.


Inventors:
MATSUMURA YASUO
MATSUOKA HIROTAKA
HIRAOKA SATOSHI
MERA FUMIAKI
MAEHATA HIDEO
IMAI TAKASHI
Application Number:
JP2006300546A
Publication Date:
May 22, 2008
Filing Date:
November 06, 2006
Export Citation:
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Assignee:
FUJI XEROX CO LTD
International Classes:
C08L101/00; G03G9/087; G03G15/08
Domestic Patent References:
JP2005325265A2005-11-24
JP2005345734A2005-12-15
JP2007133019A2007-05-31
JP2002356612A2002-12-13
JP2006171326A2006-06-29
JP2002356612A2002-12-13
JP2006171326A2006-06-29
JP2007133019A2007-05-31
JP2011094034A2011-05-12
JP2005325265A2005-11-24
JP2005345734A2005-12-15
Foreign References:
WO2001002490A12001-01-11
WO2001002490A12001-01-11
Attorney, Agent or Firm:
Yasuhiro Noguchi