Abstract: A method for recovering a noble metal that enables recovering a noble metal with high selectivity from a liquid containing a noble metal and a base metal is provided. The method recovers a noble metal from a liquid containing the noble metal and a base metal with an adsorbent. The method includes preparing a liquid to be treated that contains the liquid containing the noble metal and the base metal and that has a pH of 4 or less at 23° C., and contacting the liquid to be treated with the adsorbent. The adsorbent contains particles of a polyarylene sulfide resin.

Abstract: Provided is an aqueous pigment dispersion having water, a pigment, and a cross-linked polymer, wherein the cross-linked polymer is a reaction product of a dispersion resin having an anionic group and a cross-linking agent, the dispersion resin having an anionic group is water soluble and has an acid value of 181 to 220 mgKOH/g, the cross-linking agent is a water-soluble compound having two or more epoxy groups, and the cross-linked polymer has a cross-linking ratio of more than 80%. The aqueous pigment dispersion can be used to produce an inkjet ink that maintains excellent storage stability even under high temperatures or in an environment with widely varied temperatures, and has excellent printability.

Abstract: A method for producing a furoic acid derivative may include an oxidation step of oxidizing a furfural derivative to obtain a furoic acid derivative in the reaction system of pH 3-12. A method for producing a furan derivative may include a decarboxylation step of decarboxylating a furoic acid derivative to obtain a furan derivative without using a catalyst, using an oxide of mono- to tri-valent transition metal as a catalyst, or using a high boiling point solvent. A method for producing a furan derivative may include the oxidation step of obtaining a furoic acid derivative and the decarboxylation step of obtaining a furan derivative. A method for producing a phthalocyanine derivative or an isoindoline derivative may include obtaining a phthalocyanine derivative or an isoindoline derivative from the furan derivative obtained by any one of the methods for producing a furan derivative.

Abstract: A gas separation membrane includes a hollow fiber membrane in a form of a hollow fiber having a lumen inside, and a separation function gel containing a carrier capable of chemically interacting with an acid gas. The hollow fiber membrane has a porous layer adjacent to the lumen and a dense layer located on an outer peripheral side of the porous layer. The separation function gel is supported on a surface of the porous layer. A gas separation module includes a gas separation membrane, a housing that accommodates the gas separation membrane, and a partition that divides a region inside the housing into a lumen-side region communicatively connected to the lumen and a shell-side region not communicatively connected to the lumen. The housing has a lumen-side region port communicatively connected to the lumen-side region and a shell-side region port communicatively connected to the shell-side region.

Abstract: Provided is a leveling agent that can impart high smoothness to a coating film.

Abstract: An object of the present invention is to provide a carbon black, an ink, and the like having excellent dispersion stability. A carbon black of the present invention includes iron element in an amount of 0.01 to 2.00 parts by mass per 100 parts by mass of the carbon black. Preferably, a ratio of Fe/C is 0.001 to 0.010, where Fe is a concentration in atomic % of the iron element on a surface of particles of the carbon black, and C is a concentration in atomic % of elemental carbon on the surface of the particles of the carbon black, as determined by X-ray photoelectron spectroscopy.

Abstract: A material recommendation device includes: an input device that receives an input of a product type and an emotion word; and a hardware processor that: based on material parameter information that associates a material used in a product belonging to the product type with a value of a sense parameter indicating a degree of a human sense for the material, extracts a value of a sense parameter for each material corresponding to the input product type; based on emotion word parameter information that associates the emotion word with the value of the sense parameter, extracts a value of a sense parameter corresponding to the input emotion word; and based on the extracted value of the sense parameter for each material and the extracted value of the sense parameter corresponding to the emotion word, determines the material to be recommended for the input emotion word.

Abstract: Provided is a sulfide compound capable of functioning as an extreme pressure agent excellent in oxidation stability and stability of a frictional wear reducing effect. Specifically, a sulfide compound containing at least a fatty acid triglyceride and sulfur as reaction components, wherein a content proportion of oleic acid in fatty acids constituting the fatty acid triglyceride is 80 mass % or more.

Abstract: An object of the present invention is to provide a 1,6-hexanediol composition that can improve the hydrolysis resistance of a polymer obtained using a 1,6-hexanediol composition as a reaction raw material, and a polymer obtained by reacting the 1,6-hexanediol composition. The invention relates to a 1,6-hexanediol composition containing either or both of 1,6-hexanediol and a 1,6-hexanediol derivative, and an alkali metal element, in which the total content of the alkali metal element with respect to the total amount of the composition is in the range of 0.1 to 1000 ppm by mass, and the composition has an acid value in the range of 0.001 to 1.0 mg KOH/g.

Abstract: Titanium oxide particles having a high solar reflectance are provided. Titanium oxide particles include titanium dioxide, and the titanium oxide particles have a value calculated as a standard deviation/an average particle size×100 of less than or equal to 30%. A method for producing the titanium oxide particles includes a mixing step and a firing step. The mixing step is a step of mixing a titanium compound with a molybdenum compound and at least one of a potassium compound or a sodium compound to form a mixture. The firing step is a step of firing the mixture. A molar ratio of Mo to M1 of the mixture is more than 0.5, where M1 represents Na and K.

Abstract: Provided is a polyurethane polyisocyanate that is less colored even when the content of unreacted isocyanate monomers is removed by distillation. A polyisocyanate composition (X) contains a polyurethane polyisocyanate (A1) which is a reaction product of a diisocyanate monomer (l) and a polyol compound (m), 0.1 mass % or less of a diisocyanate monomer (l?), sodium, and magnesium. The sodium has a content of 100 ppb or more and 700 ppb or less of the polyurethane polyisocyanate (A1), the magnesium has a content of 10 ppb or more and 50 ppb or less of the polyurethane polyisocyanate (A1), and the sodium and the magnesium have a mass ratio Na/Mg of 2 or more and 70 or less.

Abstract: Titanium oxide particles having a low dielectric loss tangent value are provided. Titanium oxide particles contain titanium dioxide, and the titanium dioxide has an average crystallite size of greater than or equal to 220 nm as determined by a peak at 2?=27.5°±1.0° obtained in an X-ray diffraction measurement. A method for producing the titanium oxide particles includes a mixing step and a firing step. The mixing step is a step of mixing a titanium compound with a molybdenum compound and at least one of a potassium compound or a sodium compound to form a mixture. The firing step is a step of firing the mixture. A molar ratio of Mo to M1 of the mixture is more than 0.5, where M1 represents Na and K.

Abstract: The aqueous pigment dispersion for IJ inks has excellent dispersion quality as well as high color strength and light fastness and is particularly suited for use as an IJ aqueous pigment ink. It includes C.I. Pigment Yellow 180, a block copolymer having an acid value of 10 or more and 20 or less and an amine value of 20 or less, and water. The present invention also provides C.I. Pigment Yellow 180 having an aspect ratio of 1.0 to 2.0, a primary particle shorter diameter of 30 to 100 nm, and a crystallite size of 15.0 nm or more as calculated from the Scherrer equation based on the full width at half maximum of a peak A indicated by a maximum diffraction intensity at a diffraction angle 2?=6.7±0.5° in a powder X-ray diffraction pattern of diffraction intensities versus 20 measured using CuK? radiation.

Abstract: Molybdenum carbide includes a Mo2C crystal structure, in which a content of carbon with respect to a total mass (100 mass %) of the molybdenum carbide is 6% or more.

Abstract: Provided is a coating composition containing an acrylic resin (1), an acrylate compound (2), and a quaternary ammonium compound (3), in which the coating composition contains, as monomer components constituting the acrylic resin (1), 5% to 50% by mass of a ?-diketone group-containing monomer (A), 0.1% to 0.8% by mass of a carboxyl group-containing monomer (B), and 49.5% to 94.5% by mass of a monomer (C) that is other than the monomer (A) and the monomer (B), is free of any of functional groups of a hydroxyl group, a nitrile group, and an amide group, and has a homopolymer glass transition temperature of 60° C. or higher. Since the coating composition makes it possible to obtain a cured product, it can be used in fields where high durability and safety are required, such as automotive interior and exterior materials, household appliances, coating materials for building materials, and coating agents for films.

Abstract: An object of the present invention is to provide an ink jet textile printing ink that does not cause image cracking when printed matter is stretched, and does not block a path even when the ink is circulated by a circulation type ink jet head. The present invention achieves the above object by an ink jet textile printing ink containing a pigment and a binder resin, the binder resin containing a polyether-based urethane resin, and a difference between an indentation depth at 100° C. and an indentation depth at 30° C. of a 15 ?m thick coating film of the ink applied onto a polyethylene terephthalate plate and dried being less than 250 nm.

Abstract: Provided is a polymer functioning as a leveling agent that imparts high smoothness to a coating film without causing a defect on the surface of the coating film. Specifically, a silicone chain-containing polymer having a silicone chain on one terminal, in which the silicone chain has a number average molecular weight in a range of 2000 to 20000, and a polymerizable unsaturated group is not contained.

Abstract: A deaerator includes: a deaerating module having a tube unit that has gas permeability and partitions between a fluid flowing space and a depressurized space; a vacuum piping that is connected to the deaerating module to communicate with the depressurized space in the deaerating module; and a discharge device connected to the vacuum piping and configured to discharge a gas in the depressurized space to outside via the vacuum piping, in which the vacuum piping has: a suction pipe portion that communicates with the depressurized space and extends from the deaerating module to the discharge device, and a buffer pipe portion that is branched off from the suction pipe portion and is closed at an end portion thereof.

Abstract: Provided is an epoxy resin composition containing an epoxy resin (A), alumina (B), and aggregated boron nitride (C), wherein the alumina (B) is a polyhedron with 14 or more faces.

Abstract: A problem of the present invention is to provide a cosmetic, an ink, a printed matter, a paint, an automotive paint, a coating, a plastic, a fiber, a film, a black matrix resist, a photo spacer resist and a cured material thereof containing a kraft lignin which cuts absorption in the ultraviolet region and which has absorption ability in the ultraviolet region and the like. It was found that, because a kraft lignin having specific peaks in an infrared absorption spectrum measured with a Fourier transform infrared spectrophotometer having an ATR unit has high ultraviolet-cutting ability and has a high L* value in color measurement with a spectrophotometer, the kraft lignin can be preferably used especially for cosmetic uses, and the problem could be thus solved.