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Patent Searching and Data


Title:
METHOD FOR PRODUCING TONER FOR DEVELOPING ELECTROSTATIC IMAGE
Document Type and Number:
WIPO Patent Application WO/2016/114351
Kind Code:
A1
Abstract:
The present invention pertains to a method for producing a toner for developing an electrostatic image, the method including step (1): a step for performing polycondensation of a polyhydric alcohol component and a polyvalent carboxylic acid component in the presence of a hydrocarbon wax (W1) having a hydroxyl group or a carboxy group, and obtaining an amorphous resin (A) that contains a constituent component derived from the hydrocarbon wax (W1) and has a polyester portion; step (2): a step for dispersing the amorphous resin (A) obtained in step (1) in an aqueous medium, and obtaining an aqueous dispersion of resin particles (X); step (3): a step for causing the resin particles (X) obtained in step (2) to aggregate in the aqueous medium and in the presence of a crystalline polyester (B), and obtaining aggregate particles; and step (4): a step for causing the aggregate particles obtained in step (3) to fuse.

Inventors:
MURATA SHOICHI (JP)
HAYASHI HIROTO (JP)
Application Number:
PCT/JP2016/050991
Publication Date:
July 21, 2016
Filing Date:
January 14, 2016
Export Citation:
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Assignee:
KAO CORP (JP)
International Classes:
G03G9/087; G03G9/08
Foreign References:
JP2014232168A2014-12-11
JP2014089442A2014-05-15
JP2012098427A2012-05-24
JP2012022283A2012-02-02
JP2016012067A2016-01-21
Other References:
See also references of EP 3246756A4
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)
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