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:
Jan. 31, 2017
Filed:
Mar. 30, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Chiaki Nishiura, Kawasaki, JP;
Yuki Hasegawa, Yokohama, JP;
Ayano Mashida, Kawasaki, JP;
Takayuki Toyoda, Yokohama, JP;
Masashi Hirose, Machida, JP;
Waka Hasegawa, Tokyo, JP;
Masanori Seki, Yokohama, JP;
Yasuaki Murai, Kawasaki, JP;
Kosuke Mukumoto, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
To provide a method for producing a compound that enhances dispersibility of a pigment of respective colors in a water-insoluble solvent, as well as a pigment dispersant, and a pigment composition, a pigment dispersion and a toner having a good tinting power. A method for producing a compound, including the following: (i): subjecting a polymerizable monomer forming a monomer unit represented by formula (1) to radical polymerization in the presence of a radical polymerization initiator and an iodine molecule to provide a polymer; and (ii): binding a colorant to a terminal of a main chain of the polymer: whereinRrepresents a hydrogen atom and an alkyl group, andRrepresents a phenyl group, a carboxyl group, an alkoxycarbonyl group or a carboxamide group.