Abstract: To provide an azo compound which improves the dispersibility of an azo pigment in a non-water soluble solvent. The purpose is achieved by an azo compound having a specific structure in which a high molecular weight polymer unit is bonded.

Abstract: The present invention provides a compound capable of improving the dispersibility of color pigments in a water-insoluble solvent; and a pigment-dispersing agent. The present invention also provides a pigment composition, a pigment dispersion, and a toner, which have satisfactory tinting strength. The present invention provides the compound containing a polymer having a monomer unit having a specific chemical structure, the compound having a moiety also having a specific structure.

Abstract: A pigment dispersion containing a pigment, a non-water-soluble solvent, a compound in which an specific azo skeleton structure is bonded to a specific polymer having a monomer unit given, and a polymer compound having a monomer unit that contains a structure selected from the partial structures given by the specific formulas (3) and (4).

Abstract: The present invention provides a compound and a pigment dispersant, each of which improves the dispersibility of various types of pigments in a non-aqueous solvent and also provides a pigment composition, a pigment dispersion, and a toner, each of which has a preferable coloring power. The compound includes a polymer which has a monomer unit having a specific structure and also includes a specific partial structure.

Abstract: A compound that improves the dispersibility of pigments in non-water-soluble solvents is provided. A pigment dispersant, a pigment composition, a pigment dispersion, and a toner in which this compound is used are also provided. This compound has a polymer and a monoazo compound having a certain structure binding to each other. The pigment dispersant, the pigment composition, the pigment dispersion, and the toner contain this compound.

Abstract: 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.

Abstract: To provide an organic electroluminescence device that emits blue light and is excellent in luminescence properties (in particular, external quantum yield), and provide an organic metal complex including xanthone in a ligand of the following formula (1).

Abstract: An object of the present invention is to provide an azo compound capable of improving the dispersibility of an azo pigment in a non-water-soluble solvent. The object of the present invention is achieved with an azo compound wherein a coloring matter moiety having a diketone azo structure and a polymer are bonded to each other.

Abstract: The present invention provides a compound capable of improving the dispersibility of yellow, magenta, cyan, and black pigments in a water-insoluble solvent and a pigment-dispersing agent. The present invention also provides a pigment composition, a pigment dispersion, and a toner, which have satisfactory tinting strength. The present invention relates to a compound having a structure in which an azo skeleton structure is bound to a polymer portion via a linking group in the azo skeleton structure.

Abstract: Provided are a method of producing a compound having a colorant structure suitable for a pigment dispersant, and a pigment dispersant, a pigment composition, a pigment dispersion, and a toner each containing the compound. The production method is a method of producing a compound in which a polymer portion and a colorant portion are bonded to each other through a linking group, the method including the steps of: (a) polymerizing a vinyl-based polymerizable monomer represented by the formula (A) with a radical initiator having a protective group by living radical polymerization to provide a polymer having the protective group at a terminal thereof; (b) hydrolyzing the protective group of the polymer having the protective group at a terminal thereof obtained by the step (a) to deprotect the polymer; and (c) bonding the deprotected polymer obtained by the step (b) and a colorant to each other through a covalent bond.

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: 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.

Abstract: There is provided a new iridium complex including phenylpyridine as a ligand, the iridium complex having a basic skeleton in which a triazine ring is bonded to a phenyl ring.

Abstract: There is provided a novel iridium complex having a small half-width of an emission spectrum and an organic light-emitting device that contains the iridium complex. There is provided a novel iridium complex that has a phenyl ring and an imidazole ring as ligands and that has a basic skeleton in which the phenyl ring is bonded to a triazine ring.

Abstract: There is provided a novel iridium complex having a small half-width of an emission spectrum and an organic light-emitting device that contains the iridium complex. There is provided a novel iridium complex that has a phenyl ring and a pyrazole ring as ligands and that has a basic skeleton in which the phenyl ring is bonded to a triazine ring.

Abstract: A cyan toner comprising toner particles, each of which contains a binder resin, a compound in which a polymer portion is bound to an azo skeleton structure, and a phthalocyanine pigment serving as a colorant.

Abstract: The present invention provides a novel iridium complex and an organic light-emitting element including the same. The novel iridium complex includes phenylpyrazole as a ligand and has a basic skeleton in which a pyrimidine ring is bonded to a phenyl ring.

Abstract: A toner comprising toner particles, each of which contains a binder resin, a compound in which a polymer portion is bound to an azo skeleton structure, and a magenta pigment.

Abstract: A novel iridium complex includes a ligand including a phenyl ring and a pyrazole ring. The phenyl group is bonded to a triazine ring to form a backbone of the novel iridium complex. An organic light-emitting device includes the novel iridium complex.

Abstract: To provide an azo compound which improves the dispersibility of an azo pigment in a non-water soluble solvent. The purpose is achieved by an azo compound having a specific structure in which a high molecular weight polymer unit is bonded.

Abstract: A toner comprising toner particles, each of which contains a binder resin, a compound in which a polymer portion is bound to an azo skeleton structure, and a magenta pigment.