The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 17, 2016
Filed:
Dec. 24, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Takeshi Tsujino, Mishima, JP;
Kentaro Yamawaki, Mishima, JP;
Junya Asaoka, Mishima, JP;
Motoya Fukushima, Mishima, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A method for producing toner particles by a suspension polymerization method or a dissolution suspension method comprising: applying an inorganic dispersion stabilizer-containing liquid (liquid A) to a part that can come into contact with a polymerizable monomer composition or toner particle composition, the part being on an inner wall of a vessel used in a polymerization step or a vessel used in a solvent removal step; after the application of the liquid A, carrying out the polymerization step or solvent removal step; discharging the contents of the vessel after the completion of this polymerization step or solvent removal step; and after the contents of the vessel have been discharged, bringing an acidic aqueous solution (liquid B) to dissolve the inorganic dispersion stabilizer into contact with the inner wall of the vessel.