Abstract: Provided are a block copolymer having a narrow molecular weight distribution such that the copolymer can be used in a DSA technique, a block copolymer intermediate thereof, and methods for producing the same. A block copolymer intermediate represented by the general formula (1) or (2): wherein, in the formulae (1) and (2), each of R1 and R3 independently represents a polymerization initiator residue, each of R2 and R4 independently represents an aromatic group or an alkyl group, Y1 represents a polymer block of (a)an (meth)acrylic acid ester, Y2 represents a polymer block of styrene or a derivative thereof, L represents an alkylene group or a phenylene group, X represents a halogen group, and each of m and n independently represents an integer of 1 to 5.

Abstract: An adhesive tape including an adhesive layer is provided. The adhesive layer has a biobased content of 50% or more by mass. The adhesive layer contains a reaction product of a urethane resin (A) and a cross-linking agent (B). The urethane resin (A) contains at least a structural unit derived from a biobased polyether polyol and a structural unit derived from an aromatic polyisocyanate. The adhesive layer has a gel fraction of 10% or more by mass and 80% or less by mass and a stress of less than 50 N/cm2 at 100% strain in a stress-strain curve.

Abstract: An adhesive tape including an adhesive layer is provided. The adhesive layer has a biobased content of 50% or more by mass. The adhesive layer contains a reaction product of a urethane resin (A) and a cross-linking agent (B). The urethane resin (A) contains at least a structural unit derived from a biobased polyether polyol and a structural unit derived from an aromatic polyisocyanate. The adhesive layer has a gel fraction of 10% or more by mass and 80% or less by mass and a stress of less than 50 N/cm2 at 100% strain in a stress-strain curve.

Abstract: A hollow nano-particle includes a shell layer containing a block copolymer having a hydrophobic organic chain and a polyamine chain, and silica. A hollow silica nano-particle has a porosity of 20% by volume or more and 70% by volume or less, and a thickness of a shell layer containing silica of 3 nm or more and 100 nm or less. A production method for the hollow nano-particle includes: a step of dropping an aqueous solvent while stirring an organic solvent in which a block copolymer having a hydrophobic organic chain and a polyamine chain is dissolved, to obtain a dispersion liquid of vesicles containing the block copolymer; and a step of adding a silica source to the dispersion liquid of vesicles, carrying out a sol-gel reaction of the silica source using the vesicle as a template, and precipitating silica to obtain the hollow nano-particle.

Abstract: Provided are a block copolymer having a narrow molecular weight distribution such that the copolymer can be used in a DSA technique, a block copolymer intermediate thereof, and methods for producing the same. A block copolymer intermediate represented by the general formula (1) or (2): wherein, in the formulae (1) and (2), each of R1 and R3 independently represents a polymerization initiator residue, each of R2 and R4 independently represents an aromatic group or an alkyl group, Y1 represents a polymer block of (a)an (meth)acrylic acid ester, Y2 represents a polymer block of styrene or a derivative thereof, L represents an alkylene group or a phenylene group, X represents a halogen group, and each of m and n independently represents an integer of 1 to 5.

Abstract: There is provided a pigment dispersant that is a block polymer P in which a hydrophobic polymer block A and a hydrophilic polymer block B containing an anionic group are linked to each other. The block polymer P has a number average molecular weight ranging from 1000 to 4000; and where the block polymer P is subjected to 100% neutralization of the anionic group with a basic compound and dispersed in water and where the fine particles of the dispersed block polymer P are subjected to measurement of a scattering profile by small- or ultra-small-angle X-ray scattering that involves use of synchrotron radiation, at least one minimum value in the scattering profile is present within the range of a scattering vector q from 0.1 to 1 nm?1. There is also provided an aqueous pigment dispersion containing the pigment dispersant, a pigment, a basic compound, and an aqueous medium.

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: There is provided a pigment dispersant that is a block polymer P in which a hydrophobic polymer block A and a hydrophilic polymer block B containing an anionic group are linked to each other. The block polymer P has a number average molecular weight ranging from 1000 to 4000; and where the block polymer P is subjected to 100% neutralization of the anionic group with a basic compound and dispersed in water and where the fine particles of the dispersed block polymer P are subjected to measurement of a scattering profile by small- or ultra-small-angle X-ray scattering that involves use of synchrotron radiation, at least one minimum value in the scattering profile is present within the range of a scattering vector q from 0.1 to 1 nm?1. There is also provided an aqueous pigment dispersion containing the pigment dispersant, a pigment, a basic compound, and an aqueous medium.

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: An object of the present invention is to provide a colored liquid with superior separability from polar solvents for use with an electrowetting or electrofluidic device that uses a coloring agent added as a colorant to a nonpolar solvent. A colored liquid according to the present invention contains a nonpolar solvent and a colorant, and the colorant is a modified pigment containing a pigment (A) and a polymer (P) formed on a surface thereof by polymerizing a polymer (B) soluble in a nonaqueous solvent and at least one polymerizable unsaturated monomer (C) that is soluble in the nonaqueous solvent and that becomes insoluble or poorly soluble in the nonaqueous solvent after polymerization. A multi-phase liquid colored composition according to the present invention contains the colored liquid and a polar solvent immiscible with the colored liquid.

Abstract: An object of the present invention is to provide a colored liquid with superior separability from polar solvents for use with an electrowetting or electrofluidic device that uses a coloring agent added as a colorant to a nonpolar solvent. A colored liquid according to the present invention contains a nonpolar solvent and a colorant, and the colorant is a modified pigment containing a pigment (A) and a polymer (P) formed on a surface thereof by polymerizing a polymer (B) soluble in a nonaqueous solvent and at least one polymerizable unsaturated monomer (C) that is soluble in the nonaqueous solvent and that becomes insoluble or poorly soluble in the nonaqueous solvent after polymerization. A multi-phase liquid colored composition according to the present invention contains the colored liquid and a polar solvent immiscible with the colored liquid.

Abstract: There are provided a heater with temperature detecting device capable of accurately detecting the temperature of a laminated sheet heater (the temperature of a heater element) by a temperature detecting device, a battery structure provided with this heater with temperature detecting device, and a heater unit. A first heater with temperature detecting device includes a first laminated sheet heater and a temperature detecting device. In this first heater, a first metal sheet includes a part protruding outward in a lamination direction of a laminated heater to provide at least part of an accommodation space in which the temperature detecting device is accommodated.

Abstract: A heater with temperature detecting device, arranged to accurately detect the temperature of a laminated sheet heater over long periods, and a battery structure including the same. A first embodiment includes a laminated sheet heater and a temperature sensor having a temperature measuring portion. The laminated sheet heater includes first and second insulating resin films, a heater element, a first metal sheet, and a second metal sheet and includes a heater metallic section in which, any one of only the first metal sheet and only a combination of the first metal sheet and the second metal sheet is arranged in a lamination layering direction of the laminated sheet heater. The temperature sensor is fastened to the heater metallic section with a flat rivet and fixed to an outer surface of the first metal sheet with the temperature measuring portion in contact with the first metal sheet.

Abstract: There is provided a laminated sheet heater whose mounting space is small, a lead wire-equipped laminated sheet heater that requires only a small mounting space and provides high reliability of electrical connection between a heater element and a lead wire, a heater-equipped battery structure provided with the laminated sheet heater or the lead wire-equipped laminated sheet heater, and a heater unit. In a first lead wire-equipped laminated sheet heater, a foil heater element includes a heater terminal portion protruding into a film void part in a planar direction of a laminated sheet heater. A lead core wire of a lead wire includes a lead terminal portion crimp-connected to a heater terminal portion by a crimping member so that the lead core wire is placed in contact with the surface of the heater terminal portion within a film void part in the planar direction of the laminated sheet heater.