Abstract: It is an object of the present invention to provide a composite oxide catalyst which can suppress the generation of CO2 and CO and improve the yield of an unsaturated nitrile in a method for subjecting propane or isobutane to a vapor-phase catalytic ammoxidation reaction to produce a corresponding unsaturated nitrile, and a method for producing the composite oxide catalyst, and a method for producing an unsaturated nitrile using the composite oxide catalyst. A composite oxide catalyst used for a vapor-phase catalytic oxidation reaction or vapor-phase catalytic ammoxidation reaction of propane or isobutane, the composite oxide catalyst comprising a composite oxide represented by the following composition formula (1): Mo1VaSbbNbcWdZeOn??(1), wherein the component Z is one or more element selected from the group consisting of La, Ce, Pr, Yb, Y, Sc, Sr, and Ba; a, b, c, d, e, and n represent atomic ratios of the elements; and 0.1?a<0.2, 0.15?b?0.5, 0.01?c?0.5, 0?d?0.4, 0?e?0.2, and 0.60<a/b<1.00.

Abstract: The present invention provides a membrane element, a gas separation device, and an internal combustion engine capable of improving gas separation performance. A gas separation device 1 including membrane elements 2 includes rigid members 32 arranged in a direction intersecting folds of a pleated structure 26 in open regions R1 and R2 of the pleated structure 26 surrounded by a reinforcement frame 27. The open regions R1 and R2 are each separated into a supply region and an exhaust region of gas by an elastic epoxy resin adhesive S provided between the rigid member 32 and the pleated structure 26.

Abstract: Functional starch powder of 400% or more water retention capacity, 5 hr or more collapse time and 200 g or more gel indentation load. This functional starch powder is produced through the step of heating a starch raw material in the presence of water at 60 to 150° C. so as to swell starch particles of the starch raw material and the subsequent step of drying the thus swollen starch particles so as to obtain a powder mixture comprising starch particles and, lying in the exterior thereof, amylose and amylopectin.

Abstract: An object of the present invention is to provide a thermoplastic elastomer composition having high molding fluidity, mechanical physical properties, and resistance to wear and providing a good appearance and feeling, and molded products using the same.

Abstract: Spherical base granules comprising a hardly water-soluble drug and suited for film coating thereon are produced by layering spherical core particles with a drug-containing layering liquid comprising both micronized microcrystalline cellulose and an emulsifier therein and therefore having improved suspension stability.

Abstract: The present invention relates to a polyisocyanate composition comprising, on the basis of the total mass of the polyisocyanate composition, 97 weight % or more of a polyisocyanate, and 2.0 mass ppm or more and 1.0×104 mass ppm or less of a compound having at least one unsaturated bond in which the compound is a different compound from the polyisocyanate, or 5.0 mass ppm or more and 2.0×104 mass ppm or less of at least one inactive compound selected from the group consisting of a hydrocarbon compound, an ether compound, a sulfide compound, a halogenated hydrocarbon compound, a Si-containing hydrocarbon compound, a Si-containing ether compound, and a Si-containing sulfide compound.

Abstract: A method for producing a conjugated diolefin is configured as follows. A monoolefin having four or more carbon atoms is fed from a monoolefin feed nozzle(s) installed at n place(s) (n=1, 2, . . . , n). In addition, at least 50% or more of a total amount of an oxygen-containing gas is fed from an oxygen-containing gas feed nozzle located at a bottom of a fluidized bed reactor. Furthermore, the monoolefin feed nozzles at distances a1, a2, . . . , an from the oxygen-containing gas feed nozzle feed the monoolefin having four or more carbon atoms at ratios of b1, b2, . . . , bn (b1+b2+ . . . +bn=1), respectively, and an arithmetic mean value represented by the following formula and obtained from the above distances and the above ratios is 100 mm or more. arithmetic mean value=a1*b1+a2*b2+ . . .

Abstract: A polyacetal resin composition and molded article having a high metallic gloss, small change in a color tone according to the viewing angle, high weld performance, and high mechanical properties can be provided in which the amount of formaldehyde to be produced in molding and recycle is suppressed, the mold deposit is improved, and the repeated impact resistance after aging is high. A polyacetal resin composition comprising: (A) 100 parts by mass of a polyacetal copolymer resin, and (B) 0.1 to 10 parts by mass of an aluminum pigment, the aluminum pigment having a coin-like or flake-like flat shape, a volume average particle size D50 of 15 to 50 ?m, an average surface roughness Ra of 20 to 50 nm, and an average height Rc of depressions and projections in a surface roughness curve of 80 to 200 nm.

Abstract: (Problems to be solved) Provision of a polyamide composition with good heat resistance, stability under heating, heat resistant color tone stability, reflow heat resistance properties and fogging properties. (Solution) A polyamide obtained by polymerizing (a) a dicarboxylic acid containing at least 50 mol % of an alicyclic dicarboxylic acid and (b) a diamine containing at least 50 mol % of a diamine having a pentamethylenediamine skeleton, wherein the polyamide has a cyclic amino end content of less than 30? equivalents/g.

Abstract: A method for producing a modified conjugated diene-based polymer including a polymerization step of obtaining a conjugated diene-based polymer having an active end by use of a polymerization initiator containing a compound having at least one nitrogen atom in a molecule and an organic lithium compound; and a modification step of reacting a modifier represented by the following chemical formula (6) with the active end of the conjugated diene-based polymer: wherein R4 to R7 each independently represent an alkyl group having 1 to 20 carbon atoms or an aryl group having 6 to 20 carbon atoms; R8 represents an alkylene group having 3 to 10 carbon atoms; R9 represents an alkylene group having 1 to 20 carbon atoms; m is an integer of 1 or 2; and n is an integer of 2 or 3.

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.

Abstract: Provided is a method for producing an episulfide compound, the method including a step of thiating epoxy groups of (B) an epoxy compound by a reaction with (C) a thiating agent in the presence of (A) a polyhydric hydroxyl compound having two or more hydroxyl groups.

Abstract: A hollow fiber membrane module comprising a bundle of hollow fiber membranes, a housing, an adhesive fixation layer, an inlet and outlet, at least one bias regulating member, and at least one straightening cylinder, in which the bias regulating member is contained in the adhesive fixation layer, the adhesive fixation layer comprises an outer end surface and an inner end surface inside the straightening cylinder, at least some of spaces between the hollow fiber membranes are at least three times as large as an outer diameter of the hollow fiber membrane on the outer end surface of the adhesive fixation layer, and the spaces between the hollow fiber membranes and a space from the hollow fiber membranes to the straightening cylinder are all less than three times as large as the outer diameter of the hollow fiber membrane on the inner end surface of the adhesive fixation layer.

Abstract: An object of the present invention is to provide a process for producing efficiently and stably propylene from a hydrocarbon raw material containing a high concentration of ethylene. The present invention discloses a process for producing propylene, comprising catalytically converting a hydrocarbon raw material containing ethylene in an amount exceeding 50% by mass with a zeolite-containing catalyst satisfying the following (1) to (3): (1) containing of a medium pore diameter zeolite having a pore size of from 5 to 6.5 ?; (2) a SiO2/Al2O3 molar ratio in the medium pore diameter zeolite being from 20 to 300; and (3) an acid amount (TPD acid amount), determined by a high-temperature desorption amount in an ammonia temperature-programmed desorption spectrum, being from 20 to 350 ?mol/g-zeolite.

Abstract: The present invention provides a method for continuously producing a diaryl carbonate stably for a long time with high productivity. The method for producing a diaryl carbonate according to the present invention comprises a step (1) of obtaining an alkylaryl carbonate; a step (2) of obtaining a reaction product from the alkylaryl carbonate; a step (3) of separating the diaryl carbonate and a high boiling component from the reaction product; and a step (4) of recycling the high boiling component into the steps (1) and/or (2), wherein the high boiling component recycled in the step (4) includes a particular compound, and the particular compound satisfies a particular condition.

Abstract: It is an object of the present invention to provide a method for purifying 1,3-butadiene which can effectively remove an organic compound detrimental to anionic polymerization from 1,3-butadiene containing a polymerization inhibitor and suppress the formation of popcorn. The method includes: a water-washing step of washing 1,3-butadiene by using low-oxygen water having an oxygen concentration of less than 2 mg/L as wash water; and a polymerization inhibitor removing step of subsequently removing the polymerization inhibitor in 1,3-butadiene.

Abstract: The present invention provides expandable beads having an average particle size of 0.5 to 10 mm, a density of 0.033 to 0.80 g/cc, and a flame retardancy of V-0 or V-1 as measured according to the UL-94 vertical test (20 mm vertical burn test) in the UL standards.

Abstract: Provided is a flame-retardant thermoplastic resin composition including (A) a thermoplastic resin other than a polyphenylene ether, (B) polyphenylene ether, (C) at least one phosphinate selected from the group consisting of a phosphinate having a particular structure, a diphosphinate having a particular structure and a condensate thereof, and (D) at least one colorant selected from the group consisting of an organic pigment, an inorganic pigment and an organic dye, wherein a content of an iron element is less than 50 ppm on a mass basis.

Abstract: Provided is a welding method for welding a first resin layer and a second resin layer, the method including interposing a metal layer having pores formed therein, between the first resin layer and the second resin layer; irradiating at least one of the first resin layer and the second resin layer with laser light; thereby causing the melted resin to penetrate through the metal layer; and thus welding the first resin layer and the second resin layer.

Abstract: Methods of producing a deformed porous hollow fiber membrane by thermally induced phase separation, particularly by discharging a fusion kneaded product containing a thermoplastic resin and an organic liquid through an orifice of a hollow fiber-forming deformed nozzle; cooling and solidifying the fusion kneaded product discharged through the deformed nozzle to form the product into a hollow fiber-like material having a deformed cross section at a cross section vertical to a discharging direction; and extracting away the organic liquid from the hollow fiber-like material to obtain the deformed porous hollow fiber membrane, wherein an inorganic fine powder is kneaded in the fusion kneaded product.