Abstract: Provided are a negative electrode binder composition which has excellent slurry stability without using a thickener, such as cellulose, in a negative electrode active material for an LIB secondary battery, and which is suppressed in the resistance to swelling by a solvent, and a negative electrode using the same and a secondary battery. A negative electrode binder composition comprising a copolymer having a hydroxyl group-containing monomer and an acid group-containing monomer as essential components, in which the copolymer has a weight average molecular weight of 700,000 or more, as measured using an aqueous GPC measurement apparatus, and in which a dried polymer film of the negative electrode binder composition has a swelling ratio of 0 to 10% by weight, as measured after immersed in a carbonate mixed solvent at 45° C. for 72 hours.

Abstract: Provided is a printing agent including a pigment, a pigment dispersant, water, an organic solvent, and a binder resin, the pigment dispersant being a polymer (A) including an anionic group, the polymer (A) having a solubility in water of 0.1 g/100 ml or less, a number-average molecular weight of 1000 to 6000, and an acid value of 40 to 400 mgKOH/g. Also provided is a printed fabric produced by applying the printing agent on a fabric. The polymer (A) is preferably a polymer represented by General Formula (1) (where A1 represents a residue of an organolithium initiator; A2 represents a polymer block including a monomer having an aromatic ring or a heterocyclic ring; A3 represents a polymer block including an anionic group; n represents an integer of 1 to 5; and B represents an aromatic group or an alkyl group).

Abstract: A water-based ink for inkjet recording contains a pigment, water, organic solvents, at least one compound selected from urea compounds, and a binder resin. The organic solvents include at least (1) a water-soluble organic solvent having a boiling point of from 100° C. to 200° C. inclusive and a vapor pressure at 20° C. of 0.5 hPa or more, (2) propylene glycol, and (3) glycerin, diglycerin, and/or a derivative thereof serving as an organic solvent. Preferably, the water-based ink further contains a polymer (A) serving as a pigment dispersant. The polymer (A) has an anionic group and has a solubility in water of 0.1 g/100 mL or more, a number average molecular weight within the range of 1,000 to 6,000, and an acid value within the range of 40 to 190 mg KOH/g.

Abstract: The present invention provides a method for producing a block copolymer, which includes subjecting styrene or a derivative thereof (excluding ?-methylstyrene) to living anionic polymerization in the presence of a polymerization initiator by means of a microreactor having a channel being capable of mixing a plurality of liquids with each other, reacting a propagation end of the resultant polymer block (A) derived from styrene or a derivative thereof with ?-methylstyrene to obtain an intermediate polymer having a polymer unit (B) derived from ?-methylstyrene bonded to one end of the polymer block (A), and then subjecting a (meth)acrylate compound (c) to living anionic polymerization in the presence of a polymerization initiator so that the polymer unit (B) derived from ?-methyl styrene in the intermediate polymer serves as a propagation end to form a polymer block (C) derived from the (meth)acrylate compound (c).

Abstract: Disclosed are an aqueous pigment dispersion and an aqueous ink for inkjet recording each of which includes a polymer (A), a pigment, and water. The polymer (A) has an anionic group, has a solubility in water of 0.1 g/100 mL or less and a number average molecular weight within the range of 1,000 to 6,000, and forms fine particles in water when the degree of neutralization of the anionic groups with the basic compound is 100%. Preferably, the polymer (A) is a polymer represented by general formula (1) (in formula (1), A1 represents an organic lithium initiator residue, A2 represents a polymer block of a monomer having an aromatic ring or a heterocycle, A3 is a polymer block containing an anionic group, n represents an integer of 1 to 5, and B represents an aromatic group or an alkyl group).

Abstract: Provided is a printing agent including a pigment, a pigment dispersant, water, an organic solvent, and a binder resin, the pigment dispersant being a polymer (A) including an anionic group, the polymer (A) having a solubility in water of 0.1 g/100 ml or less, a number-average molecular weight of 1000 to 6000, and an acid value of 40 to 400 mgKOH/g. Also provided is a printed fabric produced by applying the printing agent on a fabric. The polymer (A) is preferably a polymer represented by General Formula (1) (where A1 represents a residue of an organolithium initiator; A2 represents a polymer block including a monomer having an aromatic ring or a heterocyclic ring; A3 represents a polymer block including an anionic group; n represents an integer of 1 to 5; and B represents an aromatic group or an alkyl group).

Abstract: A water-based ink for inkjet recording contains a pigment, water, organic solvents, at least one compound selected from urea compounds, and a binder resin. The organic solvents include at least (1) a water-soluble organic solvent having a boiling point of from 100° C. to 200° C. inclusive and a vapor pressure at 20° C. of 0.5 hPa or more, (2) propylene glycol, and (3) glycerin, diglycerin, and/or a derivative thereof serving as an organic solvent. Preferably, the water-based ink further contains a polymer (A) serving as a pigment dispersant. The polymer (A) has an anionic group and has a solubility in water of 0.1 g/100 mL or more, a number average molecular weight within the range of 1,000 to 6,000, and an acid value within the range of 40 to 190 mg KOH/g.

Abstract: Disclosed are an aqueous pigment dispersion and an aqueous ink for inkjet recording each of which includes a polymer (A), a pigment, and water. The polymer (A) has an anionic group, has a solubility in water of 0.1 g/100 mL or less and a number average molecular weight within the range of 1,000 to 6,000, and forms fine particles in water when the degree of neutralization of the anionic groups with the basic compound is 100%. Preferably, the polymer (A) is a polymer represented by general formula (1) (in formula (1), A1 represents an organic lithium initiator residue, A2 represents a polymer block of a monomer having an aromatic ring or a heterocycle, A3 is a polymer block containing an anionic group, n represents an integer of 1 to 5, and B represents an aromatic group or an alkyl group).

Abstract: The present invention provides a method for producing a block copolymer, which includes subjecting styrene or a derivative thereof (excluding ?-methylstyrene) to living anionic polymerization in the presence of a polymerization initiator by means of a microreactor having a channel being capable of mixing a plurality of liquids with each other, reacting a propagation end of the resultant polymer block (A) derived from styrene or a derivative thereof with ?-methylstyrene to obtain an intermediate polymer having a polymer unit (B) derived from ?-methylstyrene bonded to one end of the polymer block (A), and then subjecting a)meth)acrylate compound (c) to living anionic polymerization in the presence of a polymerization initiator so that the polymer unit (B) derived from ?-methyl styrene in the intermediate polymer serves as a propagation end to form a polymer block (C) derived from the)meth)acrylate compound (c)