METHOD FOR PRODUCING COMPOUND HAVING COLORANT STRUCTURE AT MAIN CHAIN TERMINAL OF POLYMER, AND PIGMENT DISPERSANT, PIGMENT COMPOSITION, PIGMENT DISPERSION AND TONER CONTAINING COMPOUND OBTAINED BY THE PRODUCTION METHOD
NOVEL COMPOUND, PIGMENT DISPERSING AGENT, PIGMENT COMPOSITION, PIGMENT DISPERSION AND TONER CONTAINING SAID COMPOUND
申请人:CANON KABUSHIKI KAISHA
公开号:US20160185971A1
公开(公告)日:2016-06-30
Provided is a compound that improves dispersibility of a pigment in a non-water-soluble solvent, and a pigment dispersing agent, a pigment composition, a pigment dispersion and a toner that use that compound. The present invention relates to a compound in which a polymer and a monoazo compound having a specific structure are bonded. The present invention further relates to a pigment dispersing agent, a pigment composition, a pigment dispersion and a toner containing that compound.
METHOD FOR PRODUCING COMPOUND HAVING COLORANT STRUCTURE AT MAIN CHAIN TERMINAL OF POLYMER, AND PIGMENT DISPERSANT, PIGMENT COMPOSITION, PIGMENT DISPERSION AND TONER CONTAINING COMPOUND OBTAINED BY THE PRODUCTION METHOD
申请人:Canon Kabushiki Kaisha
公开号:EP2927284A1
公开(公告)日:2015-10-07
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:
wherein
R1 represents a hydrogen atom and an alkyl group, and
R2 represents a phenyl group, a carboxyl group, an alkoxycarbonyl group or a carboxamide group.