Abstract: Provided are an ink composition including water; and a microcapsule which includes: a shell that has a three-dimensional cross-linked structure containing at least one bond selected from a urethane bond or a urea bond, and including a core that contains a di- or lower functional polymerizable compound, a tri- or higher functional polymerizable compound, and a photopolymerization initiator, in which a proportion of the di- or lower functional polymerizable compound is 20% by mass or more with respect to a total mass of the di- or lower functional polymerizable compound and the tri- or higher functional polymerizable compound, and an image forming method using the ink composition.

Abstract: An aqueous dispersion is provided, the aqueous dispersion including: a microcapsule including a core and a shell that has a three-dimensionally crosslinked structure including (a) at least one selected from the group consisting of a urethane bond and a urea bond and (b) an anionic group and a nonionic group as hydrophilic groups, in which at least one of the shell or the core has a thermal-polymerizable group; and water, in which the nonionic group is a group (W) represented by Formula (W) below, in which, in Formula (W), RW1 represents an alkylene group that has 1 to 6 carbon atoms and that may be branched, RW2 represents an alkyl group that has 1 to 6 carbon atoms and that may be branched, nw represents an integer of 2 to 200, and * represents a linkage position.

Abstract: An ink composition contains: water; and a particle including a photopolymerizable monomer and a polymer having a blocked isocyanate group having an unblocking temperature of 150° C. or less.

Abstract: Provided is an ink jet recording method, including a step of jetting, on a substrate, an ink composition A that contains a microcapsule having at least a polymerizable compound within the microcapsule, a high boiling solvent, water, and a colorant, and an ink composition B that contains a microcapsule having at least a polymerizable compound within the microcapsule, a high boiling solvent, water, and carbon black; and a step of heating the ink composition A and the ink composition B which have been jetted on the substrate, in which absorbance ABSA of the ink composition A and absorbance ABSB of the ink composition B satisfy Formula (1), and a concentration MA of the high boiling solvent contained in the ink composition A and a concentration MB of the high boiling solvent in the ink composition B satisfy Formula (2).

Abstract: Provided are an ink composition including water, particles including a polymer having at least one selected from the group consisting of a urethane group and a urea group, and a gelling agent having a hydrogen-bonding group; a method for producing the ink composition; and an image-forming method.

Abstract: Provided is a photocurable ink composition including a resin which has an amine structure having an ?-hydrogen atom and contains at least one selected from the group consisting of an alkylthio group, an alkylenethioalkylene group, and a mercapto group and at least one selected from the group consisting of a fluorinated hydrocarbon group, a polysiloxane group, and a hydrocarbon group having 12 or more carbon atoms; at least one of a monofunctional radically polymerizable monomer or a bifunctional radically polymerizable monomer; and a photopolymerization initiator.

Abstract: Provided are a kit and a laminate which are capable of suppressing residues derived from a temporary adhesive in manufacture of a semiconductor. The kit for manufacturing a semiconductor device includes a composition which contains a solvent A; a composition which contains a solvent B; and a composition which contains a solvent C, in which the kit is used when a temporary adhesive layer is formed on a first substrate using a temporary adhesive composition containing a temporary adhesive and the solvent A, at least some of an excessive amount of the temporary adhesive on the first substrate is washed using the composition containing the solvent B, a laminate is manufactured by bonding the first substrate and a second substrate through the temporary adhesive layer, one of the first substrate and the second substrate is peeled off from the laminate at a temperature of lower than 40° C.

Abstract: Provided are a photocurable ink composition including a resin which contains an amino group having one or more hydrogen atoms on a carbon atom at an ca-position and having an amine value of 3.5 mmol/g to 12 mmol/g, and a radically polymerizable monomer, in which the radically polymerizable monomer contains at least one of a monofunctional radically polymerizable monomer or a bifunctional radically polymerizable monomer, a total content of the monofunctional radically polymerizable monomer and the bifunctional radically polymerizable monomer is 50% by mass or greater with respect to a total mass of the photocurable ink composition, and a content of a radically polymerizable monomer containing an acid group in the radically polymerizable monomers is 1.5 mmol or less per 100 g of the photocurable ink composition; and an image forming method performed by using the photocurable ink composition.

Abstract: An ink composition including water, particles that include a polymer having at least one of a urethane bond or a urea bond and have a polymerizable group, and a hydrophobic compound that has an alkyl group having 8 or more carbon atoms and has a molecular weight of 5000 or less, a method for producing the ink composition, and an image-forming method.

Abstract: Provided are an aqueous dispersion including a microcapsule that contains a core and a shell; a dispersant that is at least one of a carboxylic acid (A) represented by Formula (A) or a salt of the carboxylic acid (A); and water, a method for manufacturing the aqueous dispersion, and an image forming method using the aqueous dispersion [in Formula (A), L represents a divalent linking group, X represents O, NH, or, NR2, R1 represents a hydrocarbon group having 9 or more carbon atoms, R2 represents a hydrocarbon group having 1 to 20 carbon atoms, and n represents 0 or 1].

Abstract: Provided is an ink composition including: water; particles that each include a polymer having at least one of a urethane bond or a urea bond, and each have a polymerizable group; and a combination of a polymerization inhibitor A1 that is at least one selected from the group consisting of quinone compounds, nitroso compounds, and N-oxyl compounds, and a polymerization inhibitor A2 that is at least one selected from the group consisting of phenol compounds, or a combination of a polymerization inhibitor B1 that is at least one selected from the group consisting of phenol compounds having a solubility of 1.0 g/100 mL or more in water at 25° C., and a polymerization inhibitor B2 that is at least one selected from the group consisting of phenol compounds having a solubility of less than 1.0 g/100 mL in water at 25° C.

Abstract: Provided are photosensitive resin compositions having a wide exposure latitude, a precursor composition for providing such a photosensitive resin composition, a method for producing a precursor composition, a cured film, a method for producing a cured film; and a semiconductor device. The precursor composition is a precursor composition containing at least one kind of heterocycle-containing polymer precursor, in which the heterocycle-containing polymer precursor is selected from a polyimide precursor and a polybenzoxazole precursor; and the dispersity which is a weight-average molecular weight/a number-average molecular weight of the heterocycle-containing polymer precursor is 2.5 or more.

Abstract: Provided are an aqueous dispersion including a microcapsule, and water, the microcapsule including: a shell having a three-dimensional cross-linked structure containing at least one neutralized acid group and at least one bond selected from a urethane bond or a urea bond, in which a degree of neutralization of the acid group contained in the three-dimensional cross-linked structure is from 50% to 100%; and a core, at least one of the shell or the core has a polymerizable group; a method for manufacturing the same; and an image forming method using the aqueous dispersion.

Abstract: Provided are an aqueous dispersion including a microcapsule that has a shell having a three-dimensional cross-linked structure containing at least one bond selected from a urethane bond or a urea bond, and has a core, in which at least one of the shell or the core has a polymerizable group, including a dispersant that has at least one bond selected from a urethane bond or a urea bond and a hydrophilic group, and including water; a method for manufacturing the aqueous dispersion; and an image forming method using the aqueous dispersion.

Abstract: A photo-curable ink composition contains an amine resin including a constituent unit A represented by a formula (1) or a formula (2) and a constituent unit B represented by any of a formula (3) to a formula (7) and a radical-polymerizable monomer. In the radical-polymerizable monomer, a content of a radical-polymerizable monomer having an acid group is 1.5 mmol or less per 100 g of the photo-curable ink composition. A method for forming an image using the photo-curable ink composition is also provided.

Abstract: A photo-curable ink composition is provided, the composition including: a polymer including a structural unit represented by General Formula 1 below; and a radical-polymerizable monomer, in which a total content of a monofunctional radical-polymerizable monomer and a bifunctional radical-polymerizable monomer is 50% by mass or more with respect to a total amount of the composition: in which, in General Formula 1: R1 represents a hydrogen atom or a methyl group; X represents an oxygen atom or —NR2—, R2 representing a hydrogen atom or an alkyl group having 1 to 8 carbon atoms; Y represents a group including at least one selected from the group consisting of a thioether structure, a phosphorus atom, and a hindered phenol structure; and * represents a bonding site.

Abstract: Provided are a composition which has good elastomer solubility, is thus capable of increasing a concentration of solid contents, and is capable of forming a film having excellent drying properties, surface morphology, and heat resistance, a process for producing a sheet, a sheet, a laminate, and a laminate with a device wafer. This composition includes an elastomer having a 5% thermal mass reduction temperature of 375° C. or higher when heated at an elevation rate of 20° C./min from 25° C., a solvent represented by the following General Formula (1) and having a boiling point of 160° C. or higher, and a solvent having a boiling point of lower than 120° C. In General Formula (1), R1 to R6 each independently represent a hydrogen atom or an aliphatic hydrocarbon group.

Abstract: An aqueous dispersion is provided, the aqueous dispersion including: a microcapsule including a core and a shell that has a three-dimensionally crosslinked structure including (a) at least one selected from the group consisting of a urethane bond and a urea bond and (b) an anionic group and a nonionic group as hydrophilic groups, in which at least one of the shell or the core has a thermal-polymerizable group; and water, in which the nonionic group is a group (W) represented by Formula (W) below, *?RW1—O?nwRW2??Formula (W) in which, in Formula (W), RW1 represents an alkylene group that has 1 to 6 carbon atoms and that may be branched, RW2 represents an alkyl group that has 1 to 6 carbon atoms and that may be branched, nw represents an integer of 2 to 200, and * represents a linkage position.

Abstract: An ink jet recording method has an ejection step of ejecting, onto a substrate, an ink composition A that includes water, a coloring agent, a photopolymerization initiator, and a microcapsule enclosing a polymerizable compound therein, and an ink composition B that includes water, a coloring agent, a photopolymerization initiator, and a microcapsule enclosing a polymerizable compound therein; and an irradiation step of irradiating, with light, the ink composition A and the ink composition B ejected on the substrate. An absorbance ABSA of the ink composition A and an absorbance ABSB of the ink composition B satisfy a formula (1), and a concentration MA of the microcapsule included in the ink composition A and a concentration MB of the microcapsule included in the ink composition B satisfy a formula (2).

Abstract: Provided are an aqueous dispersion, a method for manufacturing the aqueous dispersion, and an image forming method in which the image is formed of the aqueous dispersion, the aqueous dispersion including a microcapsule that has a shell having a three-dimensional cross-linked structure containing a urethane bond and/or urea bond, and has a core, in which the shell and/or core has a polymerizable group; a dispersant in which a urethane bond and/or urea bond and an anionic group are contained, a weight-average molecular weight is 5000 or more, and an anionic group value, which is the number of millimoles of the anionic group contained in 1 g of the dispersant, is from 0.10 to 2.50 mmol/g; and water.