Abstract: Provided is a composite sound-absorbing material that can exhibit sound absorption properties in a broad range of low frequencies, intermediate frequencies, and high frequencies even in a low-basis-weight region having low thickness. The composite sound-absorbing material according to the present invention is configured from two or more layers including a base material and a skin material, the skin material being positioned on the outermost layer, wherein the composite sound-absorbing material is characterized in that the ratio (skin material:base material) of the surface area (m2/m2) per unit area of the skin material and the surface area (m2/m2) per unit area of the base material is at least 1:5 and less than 1:40.

Abstract: A catalyst for production of carboxylic acid ester, containing: catalyst metal particles; and a support supporting the catalyst metal particles, wherein the catalyst has a hollow particle ratio of 40% or less.

Abstract: A fluorine-containing polymer achieving both low resistivity and high thermal stability, which have been conventionally conflicting, a cation exchange membrane including the fluorine-containing polymer, and an electrolyzer including the cation exchange membrane. The cation exchange membrane including: the fluorine-containing polymer, which includes: a tetrafluoroethylene unit (A); and a perfluoroethylene unit (B) having a carboxylic acid-type ion exchange group, where the fluorine-containing polymer has a main-chain terminal structure (T) represented by the following formula (1): —(CmFnH2m?n)—OH ??(1) in which m and n each represent any integer satisfying m?2, n?0, and 2m?n?1.

Abstract: A method of producing hydrogen using a water electrolysis system comprising at least an electrolyzer and a purifier for removing oxygen in a hydrogen gas generated in the electrolyzer. The method includes controlling a concentration of oxygen in a hydrogen gas to be introduced to the purifier to be constantly less than 0.5 volume % when the electrolyzer is operated at least under a current density of 0.5 kA/m2 or greater; and further controlling Ob/Oa to be less than 10.0, where Oa represents the concentration of oxygen in the hydrogen gas to be introduced to the purifier when the electrolyzer is operated under a current density of 2.0 kA/m2, and Ob represents the concentration of oxygen in the hydrogen gas to be introduced to the purifier when the electrolyzer is operated under a current density of 0.2 kA/m2.

Abstract: The present disclosure is directed to provide a resin composition which enables production of a molded product generating less formaldehyde and having excellent appearance and weather resistance, and also achieves suppression of mold deposit during molding. Presently disclosed is a polyacetal resin composition comprising 100 parts by mass of a polyacetal resin (A); and 0.1 to 10 parts by weight of an aluminum pigment (B), the aluminum pigment (B) containing 0.1 to 2.0 mass % of particles with a particle diameter of 1 ?m or less with respect to a total amount of the aluminum pigment (B), and a volume average particle size of the aluminum pigment (B) being 3 to 40 ?m.

Abstract: A method is provided for collecting a compound of formula (III) (in which R31 is a monovalent to trivalent organic group and n31 is an integer of 1 to 3) from a liquid phase component that is formed as a by-product in a method for producing a compound of general formula (I) (in which R11 is a monovalent to trivalent organic group and n11 is an integer of 1 to 3), wherein the collection method contains steps (1) to (3) or steps (A) and (B), and step (4). Step (1): a step for reacting the liquid phase component with at least one active hydrogen-containing compound in a reactor. Step (2): a step for returning a condensed liquid obtained by cooling gas phase components in the reactor to the reactor. Step (3): a step for discharging gas phase components that are not condensed in the step (2) to the outside of the reactor. Step (A): a step for mixing the liquid phase component, water, and a compound of general formula (III). Step (B): a step for reacting the liquid phase component with water inside the reactor.

Abstract: Provided is a laminate comprising: a support; a printing original plate; and a protection film, wherein the printing original plate comprises a cured resin obtained by curing a photosensitive resin through an entire surface exposure on a side facing the protection film.

Abstract: An electrolyzer containing: an anode, a cathode that is opposed to the anode, a membrane that is arranged between the anode and the cathode; a first elastic body that presses the cathode in a direction toward the anode, a first electrode for electrolysis that is arranged between the membrane and the cathode; and a second elastic body that is arranged between the first electrode for electrolysis and the cathode and presses the first electrode for electrolysis in the direction toward the anode, wherein the first electrode for electrolysis serves as a cathode electrode, and the first electrode for electrolysis, the second elastic body, the cathode, and the first elastic body are electrically connected.

Abstract: The present invention provides a carbodiimide composition containing a water-soluble modified polycarbodiimide (A) and a water-insoluble polycarbodiimide (B), a curing agent composition using the same, a coating composition, and a resin cured product.

Abstract: A hydrogenated conjugated diene-based polymer of the present invention has a branch number (Bn) measured by viscosity detector-equipped GPC-light scattering measurement of 2.5 or more, and a hydrogenation rate of a structural unit derived from a conjugated diene compound of 30% or more and less than 99%.

Abstract: A negative-type photosensitive resin composition that has a satisfactory imidization rate and can yield a resin layer with high chemical resistance, even under low-temperature curing conditions of 200° C. or below, the negative-type photosensitive resin composition containing a photopolymerization initiator (B) in a proportion of 0.1 part by mass to 20 parts by mass with respect to 100 parts by mass of a polyimide precursor (A), the polyimide precursor (A) being a polyamic acid ester or polyamic acid salt with a specific structure, and the weight-average molecular weight (Mw) of the polyimide precursor (A) being 3,000 or greater and less than 16,000, in terms of polystyrene, according to gel permeation chromatography (GPC).

Abstract: A plate making system comprises a writing device, an exposure device, a developing device, a plate cutting device, a first transfer device, a second transfer device and a third transfer device in an integrated manner. The plate making system also comprises a control device that controls a series of plate making processes for a flexographic printing original plate performed by the writing device, the exposure device, the developing device and the plate cutting device.

Abstract: Provided are a surface stress sensor that enables deterioration in measurement precision to be suppressed and a method for manufacturing the same. A surface stress sensor includes: a membrane configured to be bent by applied surface stress; a frame member configured to surround the membrane with gaps interposed therebetween when viewed from the thickness direction of the membrane; at least a pair of coupling portions configured to couple the membrane and the frame member; a flexible resistor configured to be disposed on at least one of the coupling portions and have a resistance value that changes according to bending induced in the coupling portion; and a support base member configured to be connected to the frame member and overlap the frame member when viewed from the thickness direction of the membrane, in which a cavity portion is disposed between the membrane and the support base member.

Abstract: To provide a nitride semiconductor element having a better contact resistance reduction effect also in the case of a light emitting element containing AlGaN having a high Al composition. The nitride semiconductor element has a substrate 1, a first conductivity type first nitride semiconductor layer 2 formed on the substrate 1, and a first electrode layer 4 formed on the first nitride semiconductor layer 2. The first electrode layer 4 contains aluminum and nickel, and both aluminum and an alloy containing aluminum and nickel are present in a contact surface to the first nitride semiconductor layer 2 or in the vicinity of the contact surface.

Abstract: An object of the present invention is to provide a conductive film further improved in at least any of mechanical characteristics, electrical characteristics, and optical characteristics while enjoying improvement in transparency by the thinning of a fine metal wire, and a conductive film roll, an electronic paper, a touch panel, and a flat-panel display comprising the same.

Abstract: A continuous fiber reinforced resin composite material of the present disclosure is a continuous fiber reinforced resin composite material containing continuous reinforcing fibers and a thermoplastic resin, wherein a peak temperature of tan ? at an interface between the continuous reinforcing fibers and the thermoplastic resin in the continuous fiber reinforced resin composite material is 80° C. or higher.

Abstract: A separator for an electricity storage device comprising a silane-modified polyolefin, wherein silane crosslinking reaction of the silane-modified polyolefin is initiated when it contacts with the electrolyte solution, as well as a method for producing the separator.

Abstract: A separator for an electricity storage device comprising a silane-modified polyolefin, wherein silane crosslinking reaction of the silane-modified polyolefin is initiated when it contacts with the electrolyte solution, as well as a method for producing the separator.

Abstract: Provided is a cellulose fiber nonwoven fabric with compacted parts that is beautiful even when dry. The cellulose fiber nonwoven fabric is characterized in that: the fabric has compacted parts; the percentage of recesses due to the compacting is 9-25%; the transverse rupture strength is at least 15 N; the transmittance of the compacted parts when dry is 3-25%; and the fabric weight is 30 g/m2 to 110 g/m2.

Abstract: The present disclosure provides a gas separation membrane module that has high, long-term utility. The present disclosure provides a gas separation membrane module that has: a housing; a gas separation membrane that is arranged inside the housing; and an adhesive part that fixes the gas separation membrane to the housing.