Abstract: Provided is a porous polyimide composition having low colorability and high light transmittability. Provided is a porous polyimide composition, in which an average pore size (L) obtained by the following expression based on a pore volume (V) and a BET specific surface area (A) determined by a gas adsorption method: L = 4V/A; is 5 nm or more and 500 nm or less, a light transmittance at 450 nm at a film thickness of 1 mm is 10% or more and 100% or less, and a degree of polymerization (n) is 5 or more and less than 40.

Abstract: The present disclosure provides cladding in which at least two layers of alloys are joined, the cladding having high wear resistance, high workability, and excellent strength at the joining interface of the alloys. The cladding is composed of two or more layers including a first alloy and a second alloy joined to the first alloy. The hardness of the second alloy of the cladding is greater than that of the first alloy, and the difference in hardness between the first alloy and the second alloy is at least HRC 44. When a shearing test based on JIS G 0601 is performed on the cladding, the breakage is on the first alloy side.

Abstract: The purpose of the present disclosure is to provide a separator for a lead-acid battery and a lead-acid battery using the same having excellent liquid reduction characteristics (Water Loss performance). According to the present disclosure, provided is the separator for a lead-acid battery, which comprises: a substrate; and a layer laminated on at least one side of the substrate, containing a conductive material, and having cracks.

Abstract: A catalyst comprising molybdenum, bismuth, iron, and nickel, wherein a proportion of a surface concentration of the nickel to a bulk concentration of the nickel is 0.60 to 1.20.

Abstract: The present disclosure aims at providing an electrolysis apparatus that can efficiently produce hydrogen and can accommodate fluctuating power supplies. A bipolar zero-gap electrolyzer for water electrolysis includes multiple bipolar elements, each of which includes an anode chamber, a cathode chamber, a conductive partition wall provided between the anode and cathode chambers, and outer frames framing the conductive partition wall. The conductive partition wall has protrusions on at least one surface. A conductive elastic body is disposed between a surface of the conductive partition wall opposite the one surface and one of the electrodes. One and the other of the electrodes form conduction with the conductive partition wall at least through the protrusions and at least through the conductive elastic body, respectively. The membrane is sandwiched between the cathode and the anode of the adjacent bipolar elements by elastic stress of the conductive elastic body.

Abstract: Provided is a hydrogenated copolymer (X) comprising: a hydrogenated copolymer (A); and a hydrogenated copolymer (B), wherein the hydrogenated copolymer (X) satisfies: (1): the hydrogenated copolymer (A) has a random copolymer structure comprising a conjugated diene monomer unit and a vinyl aromatic monomer unit, and content of the vinyl aromatic monomer unit in (A) is 10 to 80 mass %; (2): the hydrogenated copolymer (B) has a random copolymer structure comprising a conjugated diene monomer unit and a vinyl aromatic monomer unit, and content of the vinyl aromatic monomer unit in (B) is 10 to 80 mass %; (3): a ratio (Mn1/Mn2) of (Mn1) of the hydrogenated copolymer (A) to (Mn2) of the hydrogenated copolymer (B) is less than 0.25, and 1000?Mn1?40000; and (4): a mass ratio (A)/(B) of a content of the hydrogenated copolymer (A) to a content of the hydrogenated copolymer (B) is 5/95 to 50/50.

Abstract: A photosensitive resin structure for a flexographic printing plate, containing (a): a support; (b): a photosensitive resin composition layer which is located on the support (a) and which contains a thermoplastic elastomer having a copolymer site of a monovinyl-substituted aromatic hydrocarbon and a conjugated diene; and (c): an infrared ray ablation layer which is laminated on the photosensitive resin composition layer (b) and which comprises a resin and carbon black, is ablatable with an infrared laser, and is a layer shielding a light beam other than infrared ray, wherein the resin in the infrared ray ablation layer (c) contains a copolymer of a monovinyl-substituted aromatic hydrocarbon and a conjugated diene, or a hydrogenated copolymer of a monovinyl-substituted aromatic hydrocarbon and a conjugated diene, and a primary particle diameter of the carbon black contained in the infrared ray ablation layer (c) is 13 nm or larger and 25 nm or smaller.

Abstract: Provided is a separator for electricity storage devices, which comprises an active layer that contains a material (A) that is capable of absorbing lithium (Li), and which has an air permeability of 650 s/100 ml or less.

Abstract: An object of the present disclosure is to provide a composite molded article which has light weight and a high fire resistance, and further has a high productivity. The composite non-combustible molded article of the present disclosure includes a laminated structure of a metal layer and a foam layer, wherein the foam layer is made of a bead foam, and the thickness Tm (mm) of the metal layer and the density ?e (g/cm3) of the foam layer satisfy Tm×?e>0.02, and the 1% dimensional shrinkage temperature of the foam layer is 100° C. or more.

Abstract: [Problem] An object of the present disclosure is to provide a new purging compound for a resin processing machine made from a resin derived from a biomass raw material which reduces the environmental load, and has a purging performance comparable to those of conventional purging compounds for a resin processing machine. [Solution] A purging compound for a resin processing machine contains 10 to 97% by mass of a resin having a bio degree of 30% or more with respect to 100% by mass of the purging compound, wherein the resin has a weight average molecular weight of 200,000 or more and 1,500,000 or less, and a ratio of the weight average molecular weight to the number average molecular weight (Mw/Mn) of 8 or less.

Abstract: In the present invention, a conductive film having low resistance is formed on a substrate, said film having excellent storage stability and high dispersion stability as an ink. A copper oxide ink (1) contains a copper oxide (2), a dispersant (3), and a reducing agent. The content of the reducing agent is in the range of formula (1), and the content of the dispersant is in the range of formula (2). (1) 0.00010?(reducing agent mass/copper oxide mass)?0.10 (2) 0.0050?(dispersant mass/copper oxide mass)?0.30 The reducing agent content promotes the reduction of copper oxide to copper during firing, and promotes the sintering of copper.

Abstract: The present disclosure pertains to: polyamide fibers for an airbag which are characterized in that the fiber size thereof is 200-800 dtex, inclusive, and the stress retention rate thereof when obtained using a prescribed procedure is at least 3.0%; and a method for producing said polyamide fibers for an airbag, the method being characterized in that during the thermosetting step and the relaxing step thereof, the contact time between thread and a roller which is at least 190° C. is at least 30 msec and less than 110 msec, the temperature of the thermosetting roller is 190-205° C., inclusive, the temperature of the relaxing roller is greater than 100° C. and less than 190° C., and the speed ratio of the relaxing roller to the thermosetting roller satisfies this equation: 1.00<relaxing roller speed/thermosetting roller speed<1.10.

Abstract: Provided are: polyurethane elastic fibers that achieve heat resistance, adhesiveness, and reelability and that are suitable for a gather member; a winding body therefor; a gather member; and a sanitary material. The present invention relates to: polyurethane elastic fibers that are multifilaments and that contain urethane bonds and urea bonds, the polyurethane elastic fibers being characterized in that the ratio of the urea bonds with respect to the urethane bonds is 0.05 to 5%; a winding body of said polyurethane elastic fibers, wherein the elongation rate of the polyurethane elastic fibers on the winding body is 0.05 to 10%; a gather member; and a sanitary material.

Abstract: The present disclosure provides: a biodegradable nonwoven fabric for thermoforming, the biodegradable nonwoven fabric being composed of a fiber of a polylactic acid-based polymer, and having a basis weight of 20-300 g/m2, preferably, a biodegradable nonwoven fabric characterized by being composed of a long fiber of a polylactic acid polymer, having an MD-direction elongation of 50% or more at 120° C., and having an MD-direction dimensional change rate of ±4% or less at 80-140° C. as determined by thermomechanical analysis; a method for producing a molded body by using said biodegradable nonwoven fabric; and a method for molding a biodegradable beverage extraction container, the method being characterized in that the molded body has an MD-direction elongation change rate of 4% or less, as determined by thermomechanical analysis (TMA) under a load of 0.05 N/2 mm at 30-100° C.

Abstract: The present invention provides a polyaspartic coating composition containing (A) an aspartic acid ester compound represented by the following formula (I) [in formula (I), X is an n-valent organic group, and R1 and R2 are organic groups which are inert to the isocyanate group under a reaction condition, and n is an integer of 2 or more.], and (B) a polyisocyanate obtained by using one or more diisocyanate monomers selected from the group consisting of an aliphatic and alicyclic diisocyanate and a polycaprolactone polyol having a number-average molecular weight of 500 to 1,500, wherein a ratio of the polycaprolactone polyol is 20% by mass or more, and the polyisocyanate component contains 10.0% by mass or less of an isocyanurate trimer.

Abstract: Provided are a thin-film separator for a power storage device, the separator having high strength and reduced clogging, and a power storage device separator that provides high strength, high level of safety, and high dimensional stability at high temperature, and that can be formed in a thin film. One aspect provides a power storage device separator comprising a fine-porous layer (X) consisting mainly of polyolefin (A), the fine-porous layer (X) having a melt flow rate of less than or equal to 0.9 g/10 min, and having an average long-hole diameter of more than or equal to 100 nm according to MD-TD surface observation or ND-MD cross-sectional observation with a scanning electron microscope.

Abstract: The present invention provides a nonwoven fabric separator which has excellent ion permeability. The present invention provides a nonwoven fabric separator which contains a polyolefin-based nonwoven fabric, wherein the permeability parameters expressed by formulae (1) and (2) are satisfied. (1): |Pmax|?38.5 dB (2): Tmax?11.5 minutes (In the formulae, both Pmax and Tmax are parameters each indicating a permeability, and Pmax shows the attenuation degree of ultrasound transmission in a state where the nonwoven fabric separator is filled with water, while Tmax shows the time until the nonwoven fabric separator is filled with water.

Abstract: Provided is a textile for a hollow weave airbag, said textile being suitable for an airbag that has superior packability while satisfying internal pressure retention and abrasion resistance characteristics required from the airbag, and also has superior laceration resistance at the time of airbag deployment.

Abstract: Polyethylene powder satisfying (Requirements 1 and 2): (Requirement 1) a viscosity change rate of a gel under <Conditions for Preparing Gel> is ?0.8 to 0.0 Pas/° C. under <Conditions for Measurement of Viscosity Change Rate>; <Conditions for Preparing Gel> 28 g liquid paraffin of 450 to less than 550 g/mol, 12 g polyethylene powder, and 0.4 g tetrakis[methylene(3,5-di-t-butyl-4-hydroxy-hydrocinnamate)]methane are kneaded at 200° C. and 50 rpm for 10 min using Labo Plastomill to obtain a gel; <Conditions for Measurement of Viscosity Change Rate> viscosity (Pas) is measured at a piston rate of 10 mm/min (shear rate of 266 s?1) at 200° C. and 230° C. in accordance with a flow characteristics test using a capillary die prescribed in JIS K7199, and a viscosity change rate (Pas/° C.

Abstract: Provided is a method that is for manufacturing a conductive pattern-provided structure, that involves simple manufacturing steps, and that enables formation of a conductive pattern-provided structure having excellent interlayer adhesion. One mode of the present invention provides a method for manufacturing a conductive pattern-provided structure, the method comprising: a coating film formation step for obtaining a coating film by printing, on a base material, a dispersion that contains copper oxide-containing particles; and a plating step for performing electroless plating on the coating film by using a plating solution. The plating solution contains EDTA (ethylenediaminetetraacetic acid).