Abstract: To provide a resin composition that has a high impact resistance, hardly causes peeling during molding, and is excellent in flame retardancy, heat resistance, and heat aging resistance for a long period. A resin composition containing (A) polyphenylene ether, (B) a hydrogenated block copolymer that is obtained by hydrogenating a block copolymer including a polystyrene block and a conjugated diene compound polymer block, and that has a weight average molecular weight of 100,000 to 500,000, and (C) an organic phosphorus-based flame retardant within a specified amount, wherein a value of the loss tangent (tan ?) peak height of the (B) component in a dynamic viscoelasticity spectrum obtained by measurement of the resin composition at a frequency of 10 Hz is in a specified range.

Abstract: An absorbent composite comprising: a base material and water-absorbent resin particles; wherein the following conditions (1) to (4) are fulfilled: (1) the weight ratio of water-absorbent resin relative to the total weight of the base material and water-absorbent resin is 65 to 99 wt %, (2) the water-absorbent resin particles adhering directly to the base material constitute 50 wt % or more of the total water-absorbent resin particles; (3) the average absorption capacity of the water-absorbent resin particles is 50 g/g or more; and (4) the amount of residual monomers in the water-absorbent resin is 200 ppm or less.

Abstract: The present invention provides a thermoplastic acrylic resin comprising (i) a repeating unit derived from a methacrylate monomer, (ii) a repeating unit derived from a vinyl aromatic monomer, (iii) a repeating unit derived from an aromatic group-containing methacrylate monomer, and (iv) a cyclic acid anhydride repeating unit, and a molding for optical material comprising the same.

Abstract: The present invention is a method for producing an N-substituted carbamic acid ester derived from an organic amine from an organic amine, a carbonic acid derivative and a hydroxy composition containing one or more types of hydroxy compounds, wherein the organic amine, the carbonic acid derivative and the hydroxy composition are reacted using a urethane production reaction vessel provided with a condenser, a gas containing the hydroxy composition, the compound having the carbonyl group derived from the carbonic acid derivative, and an ammonia formed as a by-product in the reaction, is introduced into the condenser provided in the urethane production reaction vessel, and the hydroxy composition and the compound having the carbonyl group derived from the carbonic acid derivative are condensed, and wherein a stoichiometric ratio of a hydroxy compound contained in the condensed hydroxy composition to the condensed compound having the carbonyl group derived from the carbonic acid derivative is 1 or more, and a rati

Abstract: The present invention is a method for producing an N-substituted carbamic acid ester derived from an organic amine from an organic amine, a carbonic acid derivative and a hydroxy composition containing one or more types of hydroxy compounds, wherein the organic amine, the carbonic acid derivative and the hydroxy composition are reacted using a urethane production reaction vessel provided with a condenser, a gas containing the hydroxy composition, the compound having the carbonyl group derived from the carbonic acid derivative, and an ammonia formed as a by-product in the reaction, is introduced into the condenser provided in the urethane production reaction vessel, and the hydroxy composition and the compound having the carbonyl group derived from the carbonic acid derivative are condensed, and wherein a stoichiometric ratio of a hydroxy compound contained in the condensed hydroxy composition to the condensed compound having the carbonyl group derived from the carbonic acid derivative is 1 or more, and a rati

Abstract: A silica-supported catalyst used when producing a corresponding unsaturated nitrile in a vapor-phase catalytic ammoxidation reaction of propane or isobutane, the catalyst including a metal oxide represented by the following formula (1), MoVaNbbXcTdZeOn??(1) (wherein X represents at least one or more elements selected from Sb and Te; T represents at least one or more elements selected from Ti, W, Mn, and Bi; Z represents at least one or more elements selected from La, Ce, Yb, and Y; and a, b, c, d, e, and n are in the range of 0.05?a?0.5, 0.01?b?0.5, 0.001?c?0.5, 0?d?1, and 0?e?1, respectively, and n denotes a value that satisfies an atomic valence) wherein the silica-supported catalyst has an average pore size of 60 to 120 nm, a total pore volume of 0.15 cm3/g or more, a specific surface area of 5 to 25 m2/g, and a crystallite size of 40 to 250 nm as determined from half width of a (001) peak by X-ray diffraction.

Abstract: Disclosed is a block polyisocyanate obtained by blocking at least a part of isocyanate groups of a polyisocyanate, which is derived from an aliphatic diisocyanate and a polyol and satisfies all of the conditions (1)-(5) shown below, with a pyrazole compound. (1) Average number of isocyanate groups: 3.0-20 (2) Diisocyanate monomer trimer concentration: 10-50% by mass (3) Isocyanate group concentration: 5-22% by mass (4) Polyol content concentration: 5-40% by mass (5) Diisocyanate monomer concentration: 3% by mass or less.

Abstract: To produce a silica-supported catalyst having an excellent yield of a target product and excellent catalyst attrition resistance. A method for producing a silica-supported catalyst comprising Mo, V, Nb, and a component X (Sb and/or Te) to be used in a vapor phase catalytic oxidation or ammoxidation of propane, comprising the steps of: (I) preparing a raw material mixture solution by mixing Mo, V, Nb, component X, a silica sol, and water; (II) obtaining a dry powder by drying the raw material mixture solution; and (III) obtaining a silica-supported catalyst by calcining the dry powder, wherein the silica sol contains 10 to 270 wt ppm of nitrate ions based on SiO2.

Abstract: The disclosure provides a hydrogenated straight-chain block copolymer, obtained by selective hydrogenation of a straight-chain block copolymer.

Abstract: A porous cellulose aggregate characterized by having a secondary aggregate structure resulting from aggregation of primary cellulose particles, having a pore volume within a particle of 0.265 to 2.625 cm3/g, containing I-type crystals and having an average particle size of over 30 to 250 ?m, a specific surface area of 0.1 to less than 20 m2/g, a repose angle of 25° to less than 44° and a swelling degree of 5% or more, and characterized by having the property of disintegrating in water.

Abstract: The present invention is an uncoated housing in which a molded product formed from a thermoplastic resin composition (D) containing 20-60% by mass of an acetone insoluble resin component (A), which contains a rubber component (a) with an average particle size of 0.05-0.3 ?m and has a coefficient of linear expansion of 11×10?5-20.5×10?5, 40-80% by mass of an acetone soluble resin component (B) (here, (A)+(B)=100% by mass), and a colorant (C), with (1) the acetone soluble resin component (B) containing 6.0-45% by mass of an unsaturated nitrile monomer derived component and (2) 2-20% by mass of a component with a molecular weight of 70,000 or less by gel permeation chromatography (GPC) measurements being contained in the acetone soluble resin component (B). On the basis of JIS K7105, the L* value for this uncoated housing is 13 or less, the luster 60-120%, and the haze value 30-90%.

Abstract: A masterbatch pellet is provided for obtaining a polyamide resin composition excellent in mechanical strength and heat aging resistance. The masterbatch pellet is obtained by melt-kneading a raw material component containing a thermoplastic resin (A) and a metal oxide (B), wherein a content of the metal oxide (B) is 0.5% by mass or more and a fraction of the metal oxide (B) after the melt kneading is present as an aggregated particle of 5 ?m or more in a major axis length. A proportion of the aggregated particle of 5 ?m or more in a major axis length in a whole metal oxide after the melt kneading is preferably 30% by mass or less.

Abstract: Disclosed is an aqueous composition containing (a) an ethyl acrylate/methyl methacrylate copolymer or a plasticized vinyl accetate polymer, (b) an ethyl cellulose, (c) a water soluble additive for pharmaceutical products, (d) titanium oxide and (c) water. The solid content mass ratio among the components (a), (b), (c) and (d), namely a:b:c:d is 100:(5-50):(1-50):(0.5-10), and the solid content concentration in the aqueous composition is 0.5-40% by mass.

Abstract: Provided is a polyacetal resin composition obtained from a raw material composition containing a polyacetal resin, a hydrazine derivative, and a compound for lowering the melting point of the hydrazine derivative, wherein a mixture of the hydrazine derivative and the compound satisfies both of the following conditions: T1<T2 and T1<T3, in which T1 is an apex temperature of an endothermic peak of the mixture having a maximum endothermic capacity by, with DSC, heating and cooling the mixture in accordance with a predetermined temperature program and then heating it at a predetermined rate until the mixture fuses; and T2 and T3 represent apex temperatures of endothermic peaks of the hydrazine derivative and the polyacetal resin having a maximum endothermic capacity, respectively by the similar treatment.

Abstract: A vinylidene chloride-based resin composition enables continuous extrusion molding over a long period of time and has excellent thermal stability. A vinylidene chloride-based resin composition includes particles (A) which are solid at room temperature; a plasticizer (B) which is liquid at room temperature; and a vinylidene chloride-based copolymer, wherein, in an area of 0.4 cm2 observed with a transmission optical microscope, a ratio of the particles (A) which have a projected area of 1000 ?m2 or more and 3000 ?m2 or less to the particles (A) which have a projected area of 10 ?m2 or more and 3000 ?m2 or less is 20% or less; and a ratio of the particles (A) which have a projected area of 10 ?m2 or more and less than 100 ?m2 to the particles (A) which have a projected area of 10 ?m2 or more and 3000 ?m2 or less is 40% or more.

Abstract: Use of a porous hollow fiber membrane for producing a clarified biomedical culture medium by a method including a filtration step of distributing a biomedical culture medium over the porous hollow fiber membrane, a tube wall of the hollow fiber membrane being constituted of a blend of a hydrophobic polymer and polyvinylpyrrolidone. A content of the polyvinylpyrrolidone is not lower than 0.2% by mass and not higher than 3% by mass relative to a total mass of the porous hollow fiber membrane, and, when the tube wall is divided in a membrane-thickness direction equally into three regions, a content of the polyvinylpyrrolidone in an outer circumferential region including an outer face is higher than a content of the polyvinylpyrrolidone in an inner circumferential region including an inner face, and an average pore size in the inner face is larger than an average pore size in the outer face.

Abstract: A cellulose composite which contains a cellulose and a polysaccharide and which is characterized in that the median diameter of colloidal cellulose composites contained in the cellulose composite is 0.85 ?m or more as measured by a dynamic light scattering method.

Abstract: An oxide catalyst for use in an oxidation reaction of an olefin and/or an alcohol, the oxide catalyst comprising: the oxide catalyst contains molybdenum, bismuth, iron, cobalt, and cerium; an atomic ratio a of bismuth to 12 atoms of molybdenum is 2?a?6, an atomic ratio b of iron to 12 atoms of molybdenum is 2.5<b?5, an atomic ratio c of cobalt to 12 atoms of molybdenum is 2?c?8, an atomic ratio d of cerium to 12 atoms of molybdenum is 0.5?d?6, and an atomic ratio of iron/cobalt is 0.4?b/c?2.5; wherein when a spacing d of a complex oxide of cerium and molybdenum showing a peak at 33.50° in a X-ray diffraction is taken as a reference, a change rate of d is 5000 to 9000 ppm.

Abstract: A main object of the present invention is to provide a connection structure for a solar power generation module that has much better impact resistance at low temperature and flame retardancy even when made thinner and more compact. A connection structure for a solar power generation module according to the present invention is a connection structure for a solar power generation module, which links a solar power generation module with a cable for connecting to the solar power generation module, and includes a specific thermoplastic resin composition.

Abstract: A method for producing a diester of polyhydric alcohol and fatty acid, comprising a step of reacting a monoester of polyhydric alcohol and fatty acid in the presence of a catalyst containing a hydrotalcite compound to obtain a diester of polyhydric alcohol and fatty acid.