Abstract: The present invention relates to a porous carbon in which a slope of an approximate straight line obtained by converting a change in pressure of nitrogen until reaching an adsorption equilibrium at each prescribed relative pressure in measurement of a nitrogen adsorption isotherm into a mass transfer coefficient using the LDF approximation and linearly approximating a relationship between a relative pressure and a mass transfer coefficient at a relative pressure of 1.0×10?4 or more and 1.0×10?3 or less is 4 or more, and a pore volume of pores having a pore diameter of 2 nm or more and 200 nm or less calculated from the nitrogen adsorption isotherm by a BJH method is 0.8 cm3/g or more.

Abstract: To provide: a polyvinyl alcohol resin which enables obtaining a water-soluble film having favorable cold-water solubility and mechanical strength, has favorable biodegradability, and is superior in filterability in a state of an aqueous solution; a water-soluble film, an extruded product, a filament, a non-woven fabric, and a container each containing such a polyvinyl alcohol resin; a method for producing a water-soluble film; and an aqueous solution. The polyvinyl alcohol resin contains, as a principal component, a modified polyvinyl alcohol containing a unit represented by the following formula (1), wherein a ratio (N1/N2) of the number (N1) of 1-?m-size particles to the number (N2) of 2-?m-size particles contained in 1 mL of a 2% by mass aqueous solution of the polyvinyl alcohol resin is 0.1 or more and 50 or less. In the formula (1), R represents a single bond or a divalent organic group, and M represents a hydrogen atom, a metal atom, or an ammonium group.

Abstract: Provided is an artificial leather base material containing a polyamide fiber having excellent shape stability when wetted with water, and the artificial leather base material contains a polyamide fiber and an elastic polymer, in which in measurement data obtained by X-ray diffraction measurement of the polyamide fiber, a peak intensity ? of a diffraction peak corresponding to a ?-type crystal of a polyamide resin constituting the polyamide fiber and a peak intensity ? of a diffraction peak corresponding to an ?-type crystal of the polyamide resin satisfy a relationship of 0.690??/??1.100.

Abstract: The present disclosure provides a polyvinyl alcohol resin including a modified polyvinyl alcohol comprising an N-vinylamide unit.

Abstract: A vinyl alcohol polymer including, in the same molecule or in different molecules, a carbonyl group, a formyl group, and an alkenyl group. A method for producing a vinyl alcohol polymer, including polymerizing a vinyl ester in a presence of an unsaturated aliphatic aldehyde to obtain a vinyl ester polymer, and saponifying the vinyl ester polymer.

Abstract: There is provided a multi-layer film comprising at least a layer (X), a layer (Y), and a layer (Z) adjacently layered in this order, with the layer (X) being an outermost layer, wherein the layer (X) is made of a resin composition (A) containing a modified ethylene-vinyl alcohol copolymer (a) obtained by modification with an epoxy compound and having a melting point of 110° C. or more and less than 150° C. as a main component, the layer (Y) comprises an adhesive resin (B) having a melting point of less than 150° C. as a main component, the layer (Z) comprises a polyethylene resin (C) having a melting point of less than 150° C. as a main component, and the resin composition (A) contains 20 to 1500 ppm of an alkali metal ion (b). Even though including an outermost layer made of modified EVOH obtained by modification with an epoxy compound, such a multi-layer film is excellent in appearance, interlayer adhesion, gas barrier properties, and blocking resistance.

Abstract: An object of the present invention to provide a composition for nonaqueous electrolyte battery electrodes capable of achieving both good coatability of the composition and the suppression of expansion of electrodes obtained from the composition and an additive for nonaqueous electrolyte battery electrodes. The present invention relates to a composition for nonaqueous electrolyte battery electrodes including a binder; and an organic fiber, wherein the organic fiber has a specific gravity of 1.00 or more and a fiber length of 0.1 mm or more and 10 mm or less.

Abstract: Provided is a method for producing a vinyl ester-based copolymer comprising: polymerizing a composition comprising (i) vinyl ester, and (ii) vinyl monomer with a boiling point of 100° C. or higher to produce a copolymer paste, wherein the vinyl ester has a lower boiling point than the vinyl monomer (polymerization step), removing the vinyl ester from the copolymer paste (removing step), evaporating the vinyl monomer in an evaporator by heating the copolymer paste at a pressure of less than 1 atm (evaporation step), and discharging the copolymer paste having a viscosity of 8000 cP or more from the evaporator. By this method, unreacted vinyl monomer remained in the copolymer paste can be recovered effectively.

Abstract: Provide are a 3-methyl-1-butene-based polymer that has high crystallinity and can improve the mechanical strength of a molded item, a method for producing the same, and a resin composition, a pellet, and a molded item. The 3-methyl-1-butene-based polymer is a 3-methyl-1-butene-based polymer having a melting enthalpy, determined by differential scanning calorimetry (DSC), of 65 to 100 J/g.

Abstract: The present disclosure provides a multilayer structure comprising a base and a layer, and a method of manufacturing the same.

Abstract: An aspect of the present invention relates to a nanoplastics removal method including adsorbing nanoplastics by a moving adsorbent as defined in the present invention, wherein an average particle diameter D50 of the nanoplastics is 100 nm or smaller, and a specific surface area of the adsorbent is 700 m2/g or larger.

Abstract: [Problem to be solved] To provide a water-soluble film having good transparency and good releasability from a support with less surfactant content. [Solution] A water-soluble film containing a polyvinyl alcohol resin and surfactant, wherein a content of the surfactant is 0.005 to 1 parts by mass with respect to 100 parts by mass of the polyvinyl alcohol resin, and a ratio S(0)/S(32) of an abundance amount S(0) of the surfactant on at least one surface of the water-soluble film to an abundance amount S(32) of the surfactant on a cross-section surface at a depth of 32 nm from the at least one surface of the water-soluble film, measured by a count number of fragment ions derived from the surfactant detected by time-of-flight secondary ion mass spectrometry on the at least one surface of the water-soluble film, is in the range of 100 to 500.

Abstract: The purpose of the present invention is to provide a liquid permeable body comprising a porous composite that has different liquid permeabilities between in the in-plane direction and in the out-of-plane direction as well as excellent mechanical properties. The liquid permeable body comprises a porous composite having a structure in which discontinuous reinforcing fibers are dispersed; the dispersed discontinuous reinforcing fibers are bonded with a thermoplastic resin at at least an intersection thereof; voids of continuous openings form a void content of from 30 to 90%; an average value ? of fiber orientation angles is from 0 to 40° in an in-plane direction of the discontinuous reinforcing fibers; and an average value ? of fiber orientation angles is from 0 to 25° in an out-of-plane direction of the discontinuous reinforcing fibers.

Abstract: Surface-modified fibers including fibers, and a surface-modifying layer covering at least a part of a surface of the fibers. The surface-modifying layer contains a compound having a hydrogen bonding functional group, and an amount of the surface-modifying layer is 0.01 to 2.5 parts by mass with respect to 100 parts by mass of the fibers used as a raw material.

Abstract: A polymer having a structural unit represented by the following general formula (I), a flame-retardant composition comprising the polymer, and a method for producing the polymer. In the general formula (I), R1 represents any one selected from the group consisting of an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, and an aralkyl group having 7 to 18 carbon atoms; R2 represents a hydrogen atom or a methyl group; R3 and R4 each independently represent any one selected from the group consisting of an alkyl group having 1 to 6 carbon atoms, an alkyloxy group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an alkenyloxy group having 2 to 6 carbon atoms, an aralkyl group having 7 to 12 carbon atoms, an aralkyloxy group having 7 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, and an aryloxy group having 6 to 12 carbon atoms, and R3 and R4 may be bonded to each other; and n is an integer of 0 to 5.

Abstract: One aspect of the present invention relates to a carbonaceous material that has a benzene adsorption amount of 30 to 60%, a vitamin B12 adsorption amount of more than 50.0 mg/g, and a micropore volume of mesopores of 0.13 to 0.30 cm3/g as calculated from a nitrogen adsorption isotherm by a BJH method.

Abstract: A composition may contain a wide variety of particles with good dispersibility, the composition being able to make both rigidity and elongation at sufficient levels compatible with each other even under a low humidity. A coating and a film may each be formed of such a composition, and a base material having the foregoing coating or film. Specifically, the composition may contain an ethylene-vinyl alcohol copolymer (A) having the content of an ethylene unit of 0.5 to 19 mol % relative to all structural units and a particle (B), wherein the content of the particle (B) is 1 part by mass or more and less than 100 parts by mass based on 100 parts by mass of the ethylene-vinyl alcohol copolymer (A).

Abstract: There is provided a polarizing plate comprising a polarizing film with a thickness of 20 ?m or less, wherein the amount of a non-oriented amorphous part in the polarizing film is 55 to 70%. Here the amount of an oriented crystalline part in the polarizing film is preferably 10 to 15%. By thermoforming the polarizing plate, there can be provided a thermoformed article having sufficient polarization performance and free from cracks even with a large deformation amount during thermoforming.

Abstract: Provided are a multilayer structure and the like being superior in adhesiveness of an interlayer under high humidity and separability of a barrier layer in water, and even in a case in which the barrier layer is exposed to water in a separating and collecting step, being superior in viscosity stability after separating and collecting a resin that constitutes the barrier layer. The multilayer structure of the present invention is a multilayer structure including a barrier layer (A), a water-soluble layer (B), and an adhesive layer (C), in which: the adhesive layer (C) is laminated via the water-soluble layer (B) on one or both faces of the barrier layer (A); the barrier layer (A) contains a polyamide or an ethylene-vinyl alcohol copolymer (a1) as a principal component; and the water-soluble layer (B) contains an alkali metal ion (b1) at a content of 100 ppm or more and 2,000 ppm or less.

Abstract: Disclosed is a grain-finished leather-like sheet including: a fiber substrate; and a resin layer stacked on one side of the fiber substrate, wherein the resin layer includes at least a skin layer, and the skin layer includes a polyurethane, a nonionic compound having an HLB value of 10 to 16, and a water-soluble polymer, and has surface free energy including a polar component of 25 to 40 mJ/m2 and a dispersive component of 30 to 40 mJ/m2, as analyzed according to the OWRK method.