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Patent Searching and Data


Title:
TONER FOR DEVELOPING ELECTROSTATIC IMAGES
Document Type and Number:
WIPO Patent Application WO/2019/065868
Kind Code:
A1
Abstract:
Provided is a toner which has an excellent balance between storage stability at high temperatures and fixability at low temperatures, and which is not susceptible to the occurrence of bleeding of a mold release agent even under high temperature conditions for a long period of time. A toner for developing electrostatic images, which contains: coloring resin particles that contain a binder resin, a coloring agent and a mold release agent; and an external additive. This toner for developing electrostatic images is characterized in that the coloring resin particles additionally contain a styrene-based thermoplastic elastomer, while containing, as the mold release agent, a fatty acid ester compound having a number average molecular weight (Mn) of 500 or more but less than 2,000 in an amount of 2-20 parts by mass relative to 100 parts by mass of the binder resin.

Inventors:
YAGYU, Sakyo (6-2 Marunouchi 1-chome, Chiyoda-k, Tokyo 46, 〒1008246, JP)
Application Number:
JP2018/036014
Publication Date:
April 04, 2019
Filing Date:
September 27, 2018
Export Citation:
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Assignee:
ZEON CORPORATION (6-2 Marunouchi 1-chome, Chiyoda-ku Tokyo, 46, 〒1008246, JP)
International Classes:
G03G9/097; G03G9/087
Foreign References:
JP2004258429A2004-09-16
JP2010085841A2010-04-15
JP2014035462A2014-02-24
JP2011248108A2011-12-08
JP2009122171A2009-06-04
JP2018092139A2018-06-14
JP2012027165A2012-02-09
JP2012022056A2012-02-02
JPH06301239A1994-10-28
JP2008170659A2008-07-24
JP2016024441A2016-02-08
US5298356A1994-03-29
Attorney, Agent or Firm:
KISHIMOTO, Tatsuhito et al. (3rd Floor Oak Building Kyobashi, 16-10, Kyobashi 1-chome, Chuou-k, Tokyo 31, 〒1040031, JP)
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