Abstract: The present invention provides an aqueous pigment dispersion liquid being such that a pigment is finely dispersed, and the viscosity, and the particle diameters of the pigment are unlikely to fluctuate, being excellent in storage stability, and enabling preparation of an emulsion-polymerized toner having properly controlled particle diameters while improving the pigment utilization rate. The aqueous pigment dispersion liquid is an aqueous pigment dispersion liquid for an emulsion-polymerized toner containing a pigment, a dispersant, and an aqueous medium.

Abstract: The present invention provides an aqueous pigment dispersion liquid being such that a pigment is finely dispersed, and the viscosity, and the particle diameters of the pigment are unlikely to fluctuate, being excellent in storage stability, and enabling preparation of an emulsion-polymerized toner having properly controlled particle diameters while improving the pigment utilization rate. The aqueous pigment dispersion liquid is an aqueous pigment dispersion liquid for an emulsion-polymerized toner containing a pigment, a dispersant, and an aqueous medium.

Abstract: There is provided a resin-treated pigment that is useful as a coloring agent for color filters or inkjet inks, that can expand a hue range and improve performances such as color density, color developability, and transparency, and that is excellent in properties such as dispersibility and dispersion stability of pigments, re-dissolvability, and alkali-solubility. An A-B block copolymer 90% by mass or more of which is constituted by a methacrylate-based monomer or methacrylate-based monomers, in which the block A has a carboxy group-containing methacrylate as a constituent, and the block B has an ionic bond moiety represented by formula (1) as a constitutional unit, the ionic bond moiety containing a methacrylate, and an organic coloring matter having one or more sulfonate ions each being bonded thereto and each being a counter ion of a nitrogen cation of a quaternary ammonium salt.

Abstract: There is provided a resin-treated pigment that is useful as a coloring agent for color filters or inkjet inks, that can expand a hue range and improve performances such as color density, color developability, and transparency, and that is excellent in properties such as dispersibility and dispersion stability of pigments, re-dissolvability, and alkali-solubility. An A-B block copolymer 90% by mass or more of which is constituted by a methacrylate-based monomer or methacrylate-based monomers, in which the block A has a carboxy group-containing methacrylate as a constituent, and the block B has an ionic bond moiety represented by formula (1) as a constitutional unit, the ionic bond moiety containing a methacrylate, and an organic coloring matter having one or more sulfonate ions each being bonded thereto and each being a counter ion of a nitrogen cation of a quaternary ammonium salt.

Abstract: A novel aqueous emulsion solution is provided that can be used as a binder for forming a coating film suitable for an inkjet printing system. The present invention is an aqueous emulsion solution containing a polymer I and a polymer II mixed together therein, wherein the polymer I is an A-B block copolymer formed from 90 mass % or more of a methacrylate-based monomer, the A-B block copolymer neutralized with an alkali, a polymer block A is substantially water-insoluble and has a number average molecular weight of 1000 to 10000 and a polydispersity index of 1.5 or less, a polymer block B is synthesized using a monomer containing at least a methacrylic acid and has an acid value of 30 to 250 mgKOH/g, the A-B block copolymer has a number average molecular weight of 5000 to 20000, a content of the polymer block A of 5 to 60% in the A-B block copolymer, and a polydispersity index as a whole of 1.

Abstract: A novel aqueous emulsion solution is provided that can be used as a binder for forming a coating film suitable for an inkjet printing system. The present invention is an aqueous emulsion solution containing a polymer I and a polymer II mixed together therein, wherein the polymer I is an A-B block copolymer formed from 90 mass % or more of a methacrylate-based monomer, the A-B block copolymer neutralized with an alkali, a polymer block A is substantially water-insoluble and has a number average molecular weight of 1000 to 10000 and a polydispersity index of 1.5 or less, a polymer block B is synthesized using a monomer containing at least a methacrylic acid and has an acid value of 30 to 250 mgKOH/g, the A-B block copolymer has a number average molecular weight of 5000 to 20000, a content of the polymer block A of 5 to 60% in the A-B block copolymer, and a polydispersity index as a whole of 1.

Abstract: The present invention is an aqueous pigment dispersion liquid for inkjet comprising a pigment and a pigment dispersant. The pigment dispersant is at least any one of a graft copolymer and a block copolymer each comprising a polymer chain A and a polymer chain B, wherein the polymer chain A comprises 20 to 60 mass % of a constituent unit derived from a first cycloalkyl group-containing (meth)acrylate, 10 to 35 mass % of a constituent unit derived from (meth)acrylic acid, and 5 to 70 mass % of a constituent unit derived from another (meth)acrylate and the polymer chain B comprises at least any one of a constituent unit derived from a second cycloalkyl group-containing (meth)acrylate and a constituent unit derived from a vinyl monomer or (meth)acrylate having an aromatic ring.

Abstract: This invention relates to a coating formulation, a coating formulation for manufacturing an electrode plate and an undercoating formulation, and their use. These coating formulations are all characterized by containing, in a polar solvent, a hydroxyl-containing resin and an organic acid and/or a derivative thereof. The hydroxyl-containing resin is at least one of (1) a polyvinyl acetal resin, (2) an ethylene-vinyl alcohol copolymer, (3) a modified and/or unmodified polyvinyl alcohol, and (4) a cyanoethyl-containing polymer. According to the present invention, there is provided a coating formulation capable of forming a coating of excellent adhesion and solvent resistance on a surface of a metal material such as an aluminum material.

Abstract: The present invention is an aqueous pigment dispersion liquid for inkjet comprising a pigment and a pigment dispersant. The pigment dispersant is at least any one of a graft copolymer and a block copolymer each comprising a polymer chain A and a polymer chain B, wherein the polymer chain A comprises 20 to 60 mass % of a constituent unit derived from a first cycloalkyl group-containing (meth)acrylate, 10 to 35 mass % of a constituent unit derived from (meth)acrylic acid, and 5 to 70 mass % of a constituent unit derived from another (meth)acrylate and the polymer chain B comprises at least any one of a constituent unit derived from a second cycloalkyl group-containing (meth)acrylate and a constituent unit derived from a vinyl monomer or (meth)acrylate having an aromatic ring.

Abstract: Disclosed are a resin-treated pigment characterized in that the resin-treated pigment comprises a pigment and a polymer of an unsaturated bond-containing monomer, a weight ratio of the pigment to the polymer (pigment:polymer) is from 50 to 95 to from 5 to 50, and the polymer is a block copolymer comprising from 5 to 70 mass % of an addition-polymerizable monomer having a UV-absorbing group; a production process of the resin-treated pigment; and a pigment dispersion using the resin-treated pigment.

Abstract: Disclosed are a resin-treated pigment characterized in that the resin-treated pigment comprises a pigment and a polymer of an unsaturated bond-containing monomer, a weight ratio of the pigment to the polymer (pigment:polymer) is from 50 to 95 to from 5 to 50, and the polymer is a block copolymer comprising from 5 to 70 mass % of an addition-polymerizable monomer having a UV-absorbing group; a production process of the resin-treated pigment; and a pigment dispersion using the resin-treated pigment.

Abstract: This invention relates to a coating formulation, a coating formulation for manufacturing an electrode plate and an undercoating formulation, and their use. These coating formulations are all characterized by containing, in a polar solvent, a hydroxyl-containing resin and an organic acid and/or a derivative thereof. The hydroxyl-containing resin is at least one of (1) a polyvinyl acetal resin, (2) an ethylene-vinyl alcohol copolymer, (3) a modified and/or unmodified polyvinyl alcohol, and (4) a cyanoethyl-containing polymer. According to the present invention, there is provided a coating formulation capable of forming a coating of excellent adhesion and solvent resistance on a surface of a metal material such as an aluminum material.