Abstract: Provided are a block copolymer having a narrow molecular weight distribution such that the copolymer can be used in a DSA technique, a block copolymer intermediate thereof, and methods for producing the same. A block copolymer intermediate represented by the general formula (1) or (2) is used: wherein, in the general formulae (1) and (2), each of R1 and R3 independently represents a polymerization initiator residue, each of R2 and R4 independently represents an aromatic group or an alkyl group, Y1 represents a polymer block of (a)an (meth)acrylic acid ester, Y2 represents a polymer block of styrene or a derivative thereof, L represents an alkylene group having 1 to 6 carbon atoms, X represents a halogen atom, and each of m and n independently represents an integer of 1 to 5.

Abstract: A hollow nano-particle includes a shell layer containing a block copolymer having a hydrophobic organic chain and a polyamine chain, and silica. A hollow silica nano-particle has a porosity of 20% by volume or more and 70% by volume or less, and a thickness of a shell layer containing silica of 3 nm or more and 100 nm or less. A production method for the hollow nano-particle includes: a step of dropping an aqueous solvent while stirring an organic solvent in which a block copolymer having a hydrophobic organic chain and a polyamine chain is dissolved, to obtain a dispersion liquid of vesicles containing the block copolymer; and a step of adding a silica source to the dispersion liquid of vesicles, carrying out a sol-gel reaction of the silica source using the vesicle as a template, and precipitating silica to obtain the hollow nano-particle.

Abstract: Provided is a food or beverage having a skin-beautifying effect, for example, a food or beverage that suppresses an increase in transepidermal water loss (TEWL) of the skin, increases stratum corneum hydration, or improves skin wrinkles, spots, and the like. The food or beverage according to the invention is a food or beverage for beautiful skin containing phycocyanin as an active ingredient.

Abstract: Provided is a fiber-reinforced molding material containing a thickening substance (A) containing a vinyl ester resin (a1), an unsaturated monomer (a2), a polyisocyanate (a3), and a polymerization initiator (a4) as essential raw materials and carbon fibers (B) with a fiber length of 2.5 mm to 50 mm. The thickening substance (A) satisfies conditions (1) to (3) below as measured with a rheometer. (1) The maximum value of the rate of change in viscosity in a temperature region lower than a temperature Xa indicating the lowest melt viscosity A is 100 Pa·s/° C. to 1,500 Pa·s/° C. (2) The maximum value of the rate of change in viscosity in a temperature region higher than or equal to the temperature Xa is 1,000 Pa·s/° C. to 10,000 Pa·s/° C. (3) The lowest melt viscosity A is 10 Pa·s to 1,000 Pa·s and the temperature Xa is 70 ° C. to 140 ° C.

Abstract: Provided are a block copolymer having a narrow molecular weight distribution such that the copolymer can be used in a DSA technique, a block copolymer intermediate thereof, and methods for producing the same. A block copolymer intermediate represented by the general formula (1) or (2): wherein, in the formulae (1) and (2), each of R1 and R3 independently represents a polymerization initiator residue, each of R2 and R4 independently represents an aromatic group or an alkyl group, Y1 represents a polymer block of (a)an (meth)acrylic acid ester, Y2 represents a polymer block of styrene or a derivative thereof, L represents an alkylene group or a phenylene group, X represents a halogen group, and each of m and n independently represents an integer of 1 to 5.

Abstract: The present invention provides a liquid crystal composition, containing: one kind or two or more kinds of a first monomer having a first mesogenic skeleton, at least one polymerizable group represented by the general formula (PG1) linked to the first mesogenic skeleton, and at least one polar group linked to the mesogenic skeleton or the polymerizable group; and one kind or two or more kinds of a second monomer having a second mesogenic skeleton and a polymerizable group represented by the general formula (PG2) linked to the second mesogenic skeleton, and having a chemical structure different from that of the first monomer, in an amount of more than 0.4% by mass, which is excellent in vertical alignment, burn-in characteristics (change with time of pretilt angle), and compatibility, and provides a liquid crystal display element using the liquid crystal composition.

Abstract: More specifically, provided are a polyarylene sulfide resin composition including 100 parts by mass of a polyarylene sulfide resin and 1 to 100 parts by mass of an inorganic filler surface-treated with a sizing agent, wherein the sizing agent is a sizing agent (?) containing at least a urethane-modified epoxy resin having an alkoxy polyoxyalkylene structure and a urethane resin having a sulfonate group, a sizing agent (?) containing a copolymer (?1) having a mass average molecular weight of 5000 to 150000, which is obtained by radical copolymerization of a polymerizable monomer mixture of at least a (meth)acrylic acid ester and maleic acid (anhydride), or a sizing agent (?) containing at least a polyether resin, a urethane resin, and a silane coupling agent, a molded article thereof, an inorganic filler used for the composition, and methods for producing them.

Abstract: A fiber-reinforced molding material includes: as essential raw materials, a vinyl ester (A) which is a reaction product of an epoxy resin (a1) having an epoxy equivalent in the range of 180 to 500 and a (meth)acrylic acid (a2); an unsaturated monomer (B) having a flash point of 100° C. or higher; a thermoplastic resin (C); a polyisocyanate (D); a polymerization initiator (E); and carbon fibers (F) having a fiber length of 2.5 to 50 mm. The mass ratio ((A)/(B)) of the vinyl ester (A) to the unsaturated monomer (B) is in the range of 40/60 to 85/15. The molar ratio (NCO/OH) of the isocyanate group (NCO) of the polyisocyanate (D) to the hydroxy group (OH) of the vinyl ester (A) is in the range of 0.25 to 0.85.

Abstract: In the present invention, there is provided an urethane resin composition containing an urethane resin (A), water (B), and a surfactant (C) having no aromatic ring, and having a hydrophobic portion having 10 or more carbon atoms, wherein the urethane resin composition has a carbonate structure (X) and an oxyalkylene structure (Y) derived from the urethane resin (A). Further, the present invention provides a foamed urethane sheet which is formed from the urethane resin composition, wherein the foamed urethane sheet has a density of 200 to 1,000 kg/m3. The urethane resin composition according to claim 1, wherein the mass ratio of the carbonate structure (X) to the oxyalkylene structure (Y) [X/Y] is in the range of from 10/90 to 90/10.

Abstract: To provide a molding material which uses, as essential raw materials, (A) an aromatic epoxy resin, (B) a curing agent for epoxy resins, and (C) a curing accelerator, and which has a ratio of transmittance at 910 cm?1 to transmittance at 1510 cm?1 (910 cm?1/1510 cm?1) in FT-IR ATR measurement in the range of 1 to 3. Since the molding material exhibits excellent productivity, moldability and the like, the molding material can be suitably used in automobile members, railway vehicle members, aerospace vehicle members, watercraft members, housing equipment members, sports members, light vehicle members, construction civil engineering members, and exteriors and structures of office automation equipment, etc.

Abstract: The present invention is a molded article containing a polyarylene sulfide resin, a thermoplastic resin other than the polyarylene sulfide resin, and a metal oxide containing at least one of copper or chromium. The polyarylene sulfide resin forms a continuous phase, and a dispersed phase containing the thermoplastic resin and the metal oxide is present in the continuous phase. The present invention is also a polyarylene sulfide resin composition for providing it, a molded article having a roughened surface, a laminate of the molded article and metal, and methods for producing them. According to the present invention, there is provided a molded article that has superior heat resistance of a polyarylene sulfide resin, on which the speed of plating deposition is practical, and with which a laminate with potentially maintained adhesiveness of plating can be obtained and a method for producing it, as well as a polyarylene sulfide resin composition.

Abstract: The present invention provides an epoxy resin composition containing an epoxy resin (A) having a viscosity at 25° C. of 1000 mPa·s or less, an epoxy resin (B) having at least two epoxy groups that is other than the epoxy resin (A), a core-shell rubber particle (C), and an amine curing agent (D). The content of the epoxy resin (A) is in the range of 0.5 to 15 mass % relative to the total mass of (A), (B), (C), and (D), and the content of the core-shell rubber particle (C) is in the range of 1 to 10 mass % relative to the total mass of (A), (B), (C), and (D). This epoxy resin composition has low viscosity and good impregnation property into fibers and is capable of forming into a cured product having high heat resistance, high mechanical properties, and high water absorption resistance.

Abstract: The present invention provides a novel method for producing an ester group-containing compound and a derivative produced using the compound as a synthetic intermediate. The invention also provides a polymerizable composition containing the compound obtained by the production method and a film-shaped polymer obtained by polymerizing the polymerizable composition. The present invention is a method for producing an ester group-containing compound, the method including a mixing step of mixing a condensing agent, a Bronsted acid, a carboxylic acid, and a phenol or an alcohol to prepare a reaction mixture. The Bronsted acid selected is other than the condensing agent, the carboxylic acid, and the phenol.

Abstract: To provide a resin composition that allows the effect of cellulose fibers added to be exerted sufficiently and allows a molded body having good mechanical strength to be produced, a method for producing the resin composition, a cellulose fiber composition, and a molded article using the resin composition. The resin composition of the present invention contains: an olefin-based polymer (A); cellulose fibers (B); an amide compound (C) having at least one hydrocarbon group; and an acrylic-based polymer (D) that contains a first structural unit based on an alkyl (meth)acrylate and a second structural unit based on an acrylic monomer having an amido group and has a weight average molecular weight of 5,000 to 100,000.

Abstract: Provided are light-emitting particles having high stability while having perovskite-type semiconductor nanocrystals having excellent light-emitting properties, a method for producing the same, and a light-emitting particle dispersion, an ink composition, and a light-emitting element containing such light-emitting particles. The method for producing light-emitting particles of the present invention includes a step of preparing parent particles 91 each having hollow particles 912 each having an inner space 912a and pores 912b communicating with the inner space 912a, and perovskite-type semiconductor nanocrystals 911 contained in the inner space 912a and having light-emitting properties, and a step of coating the surface of each parent particle 91 with a hydrophobic polymer to form a polymer layer 92.

Abstract: A photomask excellent in durability and exposure efficiency is provided, which is obtained by a simple manufacturing method at a low cost, exhibits sufficient ESD-suppressing effect, causes no destruction of an exposure pattern, and has satisfactory exposure efficiency. The photomask comprises a light-shielding film formed into a pattern for shielding a photoresist film from exposure to light, formed on a surface of a transparent substrate. A coating layer including a thiophene-based conductive resin is formed on the transparent substrate having the light-shielding film formed thereon. The sheet resistance at a surface of the photomask having the coating layer including a thiophene-based conductive resin is smaller than 1011?/?.

Abstract: The present invention relates to light-scattering liquid crystal devices suited for use in light control glass such as optical shutters and use in segment displays in, for example, clocks. A light-scattering liquid crystal device according to the present invention includes two substrates 1, of which at least one includes an electrode layer 2 and at least one is transparent, and a light control layer 4 held between the substrates, the light control layer 4 containing a liquid crystal material and a polymer substance, wherein the light-scattering liquid crystal device includes, between the substrates and the light control layer, a thin film layer 3 formed by subjecting a thermally curable compound containing a reactive group to thermal curing. According to the present invention, a light-scattering liquid crystal device having dramatically improved adhesion can be provided.

Abstract: The present invention addresses the problem of providing a composition that delivers high barrier properties in fewer coating steps. The present invention solves this problem by providing a composition for gas barrier purposes that contains at least one carboxyl-containing resin (A), at least one divalent metal compound (B), and at least one alcohol (C). The alcohol (C) content of the composition is between 85 and 98 wt %, and the water content of the composition is 1% or less. The present invention, furthermore, is one that provides a gas barrier coating agent containing this composition for gas barrier purposes and a laminate having a substrate and a coat layer obtained by applying this coating agent.

Abstract: The present invention provides: a curable composition including an epoxy resin, an amine compound, and core-shell particles, in which the amine compound contains an N-(aminoalkyl)piperazine compound as an essential component; a cured product thereof; a fiber reinforced composite material, a fiber reinforced resin molded article, and a method for producing a fiber reinforced resin molded article. The curable resin composition has fast curability, also has favorable impregnation property into reinforced fibers, and furthermore, can form a cured product having excellent toughness and the like.

Abstract: There is provided a compound which provides a semiconductor material. The compound is represented by General Formula (1) wherein Ar represents an aryl group which may have a substituent or a heteroaryl group which may have a substituent, and R1 represents an acyclic alkyl group having 1 to 20 carbon atoms wherein hydrogen atom in the alkyl group may be replaced by a halogeno group, a nitrile group or an aryl group, and —CH2— in the alkyl group may be replaced by —O—, —R?C?CR?—, —CO—, —OCO—, —COO—, —S—, —SO2—, —SO—, —NH—, —NR?— or —C?C— provided that, with respect to each of an oxygen atom, a sulfur atom and a nitrogen atom, the same atoms are not directly bonded to each other, wherein R? represents an acyclic or cyclic alkyl group having 1 to 20 carbon atoms.