Abstract: A pharmaceutical composition including drug-containing nanoparticles having an average particle diameter of from 10 nm to 150 nm, the pharmaceutical composition being obtained by mixing water with a poorly water soluble drug-containing, water miscible solution that contains a poorly water soluble drug having a water solubility of 50 ?g/mL or less, a water soluble copolymer having a repeating unit represented by the following Formula (1), and a water miscible miscible solvent, wherein in Formula (1), n:m is within a range of from 0.25:0.75 to 0.95:0.05, R represents an alkyl group which may have a substituent, R1 and R2 each independently represent a hydrogen atom or a methyl group, and Me represents a methyl group; and a preparation for oral administration, which includes the pharmaceutical composition.

Abstract: There is provided a fat emulsion which has a pH of 4.5 to 6.0 and includes a prostaglandin compound, an oil ingredient, a lecithin, the content of which is 0.15 times or more by mass the content of the oil ingredient, a water-soluble acid having a pKa of 4.0 to 6.0 and having a dissociable group or a salt thereof, and water; and a fat emulsion which includes a prostaglandin compound, an oil ingredient, a lecithin, the content of which is 500 to 5,000 times by mass the content of the prostaglandin compound and is 0.5 to 10 times by mass the content of the oil ingredient, and water, and in which the content of a higher fatty acid is 0.06 times or less by mass the content of the lecithin.

Abstract: A composition for oral administration includes: a water-insolubilized material including a bitter or astringent substance, such as an iso-? acid, and a polyvalent metal salt such as ferric chloride; and a dispersant such as a water-soluble macromolecule such as gelatin or gum arabic.

Abstract: A pharmaceutical composition including drug-containing nanoparticles having an average particle diameter of from 10 nm to 150 nm, the pharmaceutical composition being obtained by mixing water with a poorly water soluble drug-containing, water miscible solution that contains a poorly water soluble drug having a water solubility of 50 ?g/mL or less, a water soluble copolymer having a repeating unit represented by the following Formula (1), and a water miscible miscible solvent, wherein in Formula (1), n:m is within a range of from 0.25:0.75 to 0.95:0.05, R represents an alkyl group which may have a substituent, R1 and R2 each independently represent a hydrogen atom or a methyl group, and Me represents a methyl group; and a preparation for oral administration, which includes the pharmaceutical composition.

Abstract: A polymerizable compound represented by the following formula (1): wherein, in the formula (1), R1 represents any one of a hydrogen atom, a substituted alkyl group, and an unsubstituted alkyl group; R2 represents an alkylene group; W represents any one of —CO—, —C(?O)O—, —CONH—, —OC(?O)—, and a phenylene group; X represents any one of —CO—, —NHCO—, —OC(?O)—, —CH(OH)CH2—, and —SO2—; R3 and R4 represent a monovalent substituent; R3 and R4 may be bound to each other to form a ring structure; and m and n each independently represent 0 or 1.

Abstract: Disclosed are an ink composition comprising at least a colorant (a) and a polymer (b) having a heterocyclic moiety forming a colorant, an image forming method including applying the ink composition to a recording medium by printing and curing the ink composition, and a printed article produced by curing the ink composition.

Abstract: The invention provides an ink-jet recording ink set including at least one first liquid A for at least forming an image and at least one second liquid B having a different composition from the composition of the first liquid A, wherein the first liquid A contains at least a polymer having a heterocyclic residue for forming a colorant, and a pigment, as well as an ink-jet recording method using the ink set.

Abstract: The present invention provides an inkjet-recording ink set including multiple kinds of liquid including at least first and second liquids, wherein the first liquid contains a metal compound dissolved therein, and at least one of the multiple kinds of liquid contains a polymerizable compound. The invention also provides an inkjet-recording ink including at least a high-boiling-point organic solvent and a metal compound. The multiple kinds of liquid contain substantially no water and no low-boiling-point organic solvent.

Abstract: An ink set for ink jet recording, an ink for ink jet recording and an ink jet recording method capable of suppressing bleeding and the interference between discharged droplets to form high-quality images can be achieved by an ink set for ink jet recording, having plurality of liquids containing at least a first liquid and a second liquid, wherein the first liquid has an oil-soluble polymer dissolved therein, and at least one of a plurality of the liquids contains a polymerizable compound, as well as by an ink jet image recording method which uses the ink set and applying the first and second liquids simultaneously onto a recording medium, or first applying one of the liquids and then the other onto a recording medium such that the two liquids contact each other to form an image.

Abstract: A gel sheet including a hydrogel, the hydrogel including at least 50 parts by mass of water-soluble divalent metal salt with respect to 100 parts by mass of anionic polymer compound is provided.

Abstract: A pigment-dispersion composition, which has: a graft polymer having an acid group and organic pigment particles formed by mixing a solution in which an organic pigment is dissolved in a good solvent with a poor solvent for the organic pigment, the poor solvent having compatibility with the good solvent.

Abstract: To provide an adhesive gel sheet for living organisms which may allow efficient permeation of the skin by carotenoid, and also provide a sheet-form cosmetic using the same, It is provided an adhesive gel sheet for living organisms which includes a hydrogel having a carotenoid-containing O/W emulsion, gelatin or a derivative thereof and a hydrophilic polymer, and further comprises a polyvalent inorganic salt, wherein the content of the polyvalent inorganic salt is 0.1% or less by mass of the entire mass of the hydrogel. It is preferable that the hydrophilic polymer be a polysaccharide that forms a thermoreversible gel.

Abstract: The present invention provides ink jet recording sheets comprising a colorant receiving layer on a substrate, the colorant receiving layer comprising fine particles, a water soluble resin, and a cationic resin including a unit represented by the following formula (1): Formula (1) wherein, R represents a hydrogen atom or a methyl group; Y represents a divalent linking group; R1 represents an optionally substituted aralkyl or aryl group; R2 and R3 each independently represents an optionally substituted alkyl, aralkyl or aryl group having 1 to 18 carbon atoms; R4 represents an optionally substituted alkylene, aralkylene or arylene group; Q is at least one unit provided from a monomer having an ethylenic double bond, and represents a unit having an inorganic/organic ratio (I/O value) of less than 1 in the organic conceptional chart; X? represents an anion; m represents 20 to 100% by mole; and n represents 0 to 80% by mol.

Abstract: The present invention provides an inkjet-recording ink set including multiple kinds of liquid including at least first and second liquids, wherein the first liquid contains a metal compound dissolved therein, and at least one of the multiple kinds of liquid contains a polymerizable compound. The invention also provides an inkjet-recording ink including at least a high-boiling-point organic solvent and a metal compound.

Abstract: An ink set for ink jet recording, an ink for ink jet recording and an ink jet recording method capable of suppressing bleeding and the interference between discharged droplets to form high-quality images can be achieved by an ink set for ink jet recording, comprising a plurality of liquids containing at least a first liquid and a second liquid, wherein the first liquid comprises an oil-soluble polymer dissolved therein, and at least one of a plurality of the liquids contains a polymerizable compound, as well as by an ink jet image recording method which comprises using the ink set and applying the first and second liquids simultaneously onto a recording medium, or first applying one of the liquids and then the other onto a recording medium such that the two liquids contact each other to form an image.

Abstract: A polymerizable compound represented by the following formula (1): wherein, in the formula (1), R1 represents any one of a hydrogen atom, a substituted alkyl group, and an unsubstituted alkyl group; R2 represents an alkylene group; W represents any one of —CO—, —C(?O)O—, —CONH—, —OC(?O)—, and a phenylene group; X represents any one of —CO—, —NHCO—, —OC(?O)—, —CH(OH)CH2—, and —SO2—; R3 and R4 represent a monovalent substituent; R3 and R4 may be bound to each other to form a ring structure; and m and n each independently represent 0 or 1.

Abstract: The present invention provides a recording medium including a recording layer on a substrate, wherein the recording layer includes a polymer that has a thioether bond, has a sulfur equivalent of no less than 1.2 meq/g, and has an inorganic/organic ratio (I/O value) represented in an organic-inorganic conceptional diagram of no less than 0.5. According to the invention, the recording medium may be an ink jet recording medium, in which the recording layer is an ink receiving layer.

Abstract: The invention provides an ink-jet recording ink set including at least one first liquid A for at least forming an image and at least one second liquid B having a different composition from the composition of the first liquid A, wherein the first liquid A contains at least a polymer having a heterocyclic residue for forming a colorant, and a pigment, as well as an ink-jet recording method using the ink set.

Abstract: An ink jet recording medium containing a support and an ink receiving layer on the support, in which the ink receiving layer includes at least a complex formed from a metal with a valence of two or more and an acidic group-containing compound having a substituent group containing a nitrogen atom, an oxygen atom or a sulfur atom. The acidic group-containing compound is preferably a compound represented by the following general formula (I).

Abstract: The present invention provides an ink set including multiple liquids including at least first and second liquids, wherein the first liquid contains a hydrophobic polymer, and the hydrophobic polymer includes at least a unit represented by the following formula (1), wherein R1 represents a hydrogen atom or an alkyl group that may have a substituent group; R2 represents an alkyl or aryl group that may have a substituent group; and L represents a linking group selected from the group consisting of —C(?O)O—, —O—, and —OC(?O)—.