Abstract: The prepreg comprises: a reinforcing fiber layer including reinforcing fibers and a resin composition with which the space between fibers of the reinforcing fibers is impregnated and which contains (A) a benzoxazine resin, (B) an epoxy resin, and (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule; and a surface layer provided on a surface of the reinforcing fiber layer and containing (A) to (C) components, and (D) polyamide resin particles having an average particle size of 5 to 50 ?m, wherein the polyamide resin particles include polyamide resin particles made of copolymers in which caprolactam and laurolactam are copolymerized at a molar ratio of 1:9 to 3:7 and at a molar ratio of 9:1 to 7:3, respectively.

Abstract: The prepreg comprises: a reinforcing fiber layer including reinforcing fibers and a resin composition with which the space between fibers of the reinforcing fibers is impregnated and which contains (A) a benzoxazine resin, (B) an epoxy resin, and (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule; and a surface layer provided on a surface of the reinforcing fiber layer and containing (A) a benzoxazine resin, (B) an epoxy resin, (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule, and (D) polyamide resin particles having an average particle size of 5 to 50 ?m, wherein the polyamide resin particles include a polyamide resin particle made of a copolymer in which caprolactam and laurolactam are copolymerized at a molar ratio of 1:9 to 3:7 and a polyamide 1010 resin particle.

Abstract: The present invention provides a working fluid composition for a refrigerating machine, comprising: a refrigerating machine oil comprising, as a base oil, a mixed ester of (A) a complex ester obtainable by synthesis of at least one polyhydric alcohol selected from neopentyl glycol, trimethylolpropane and pentaerythritol, a C6-C12 polybasic acid, and a C4-C18 monohydric alcohol or a C4-C18 monocarboxylic fatty acid, and (B) a polyol ester obtainable by synthesis of at least one polyhydric alcohol selected from neopentyl glycol, trimethylolpropane, pentaerythritol and dipentaerythritol, and a C4-C18 monocarboxylic fatty acid, in a mass ratio of (A) the complex ester/(B) the polyol ester of 5/95 to 95/5; and a hydrocarbon refrigerant having 3 or 4 carbon atoms, wherein a refrigerant dissolved viscosity, at a temperature of 80° C. and an absolute pressure of 1.5 MPa, is 1.0 mm2/s or more.

Abstract: The prepreg comprises: a reinforcing fiber layer including reinforcing fibers and a resin composition with which the space between fibers of the reinforcing fibers is impregnated and which contains (A) a benzoxazine resin, (B) an epoxy resin, and (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule; and a surface layer provided on a surface of the reinforcing fiber layer and containing (A) a benzoxazine resin, (B) an epoxy resin, (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule, and (D) polyamide resin particles having an average particle size of 5 to 50 ?m, wherein the polyamide resin particles include a polyamide 12 resin particle and a polyamide 1010 resin particle.

Abstract: A Fischer-Tropsch synthesis reaction catalyst includes a catalyst support containing a silica and zirconium oxide in an amount of 0.5 to 14% by mass based on the mass of the catalyst support, and cobalt metal and a cobalt oxide supported on the catalyst support in an amount equivalent to 10 to 40% by mass of tricobalt tetroxide based on the mass of the catalyst, wherein the degree of reduction of the cobalt atoms is within a range from 75 to 93%, and the amount of hydrogen gas adsorption per unit mass of the catalyst at 100° C. is within a range from 0.40 to 1.0 ml/g.

Abstract: Provided are a method for producing artificial graphite through a vertical graphitization furnace with easy circulation of inert gas, uniform heating and no damage to the furnace; and particulates used therefor. The method comprises steps of: introducing graphitizable particulates having average particle diameter of 3 to 30 mm into an inside of the furnace from upper part thereof, heating the particulates at 2200° C. to 3200° C. while making inert gas flow from lower part toward upper part thereof to graphitize the particulates, and removing the graphite through lower part thereof. The particulates have average particle diameter of 3 to 30 mm and are obtained by granulating mixture comprising 100 wt parts of graphitizable carbonaceous substance powder having average particle diameter of 10 to 20 ?m, 3 to 20 wt parts of binder decomposable at lower than 1000° C., and 5 to 30 wt parts of liquid which can dissolve the binder.

Abstract: The prepreg comprises: a reinforcing fiber layer including reinforcing fibers and a resin composition with which the space between fibers of the reinforcing fibers is impregnated and which contains (A) a benzoxazine resin, (B) an epoxy resin, and (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule; and a surface layer provided on a surface of the reinforcing fiber layer and containing the (A) to (C) components, and (D) polyamide resin particles having an average particle size of 5 to 50 ?m, wherein the polyamide resin particles include a polyamide 12 resin particle and a polyamide resin particle made of a copolymer in which caprolactam and laurolactam are copolymerized at a molar ratio of 9:1 to 7:3.

Abstract: A norbornane-2-spiro-?-cycloalkanone-??-spiro-2?-norbornane-5,5?,6,6?-tetracarboxylic dianhydride represented by the following general formula (1): wherein the formula (1), n represents an integer of 0 to 12, and R1s, R2, R3 each independently represents a hydrogen atom or the like.

Abstract: A liquid-fuel synthesizing method includes a synthesizing step of synthesizing liquid fuels by making a synthesis gas including a carbon monoxide gas and a hydrogen gas as the main components and a slurry having solid catalyst particles suspended in a liquid react with each other in a reactor, and a synthesis gas supply step of supplying the synthesis gas to the reactor from a plurality of supply devices provided in the reactor so as to have different heights.

Abstract: A synthesis gas production apparatus (reformer) to be used for a synthesis gas production step in a GTL (gas-to-liquid) process is prevented from being contaminated by metal components. A method of suppressing metal contamination of a synthesis gas production apparatus operating for a GTL process that includes a synthesis gas production step of producing synthesis gas by causing natural gas and gas containing steam and/or carbon dioxide to react with each other for reforming in a synthesis gas production apparatus in which, at the time of separating and collecting a carbon dioxide contained in the synthesis gas produced in the synthesis gas production step and recycling the separated and collected carbon dioxide as source gas for the reforming reaction in the synthesis gas production step, a nickel concentration in the recycled carbon dioxide is not higher than 0.05 ppmv.

Abstract: A mixing device used in a fluidized catalytic cracking apparatus which mixes feed and a catalyst includes a cylindrical reaction container which supplies a catalyst in a vertical direction; a plurality of feed injection nozzles arranged along an outer circumference of the reaction container; and a catalyst flow regulator which is provided in the reaction container and regulates a flow of the catalyst in the vicinity of the feed injection nozzles. The catalyst flow regulator has no feed supply function and forms a catalyst moving bed having a hollow tubular shape which is coaxial with the reaction container in the vicinity of the feed injection nozzles. The catalyst flow regulator can effectively prevent backward flow of injected fuel. Although the mixing device has a simple structure, it has a high cracking rate and maintenance of the fluidized catalytic cracking apparatus can be performed easier.

Abstract: The invention provides a lubricating oil composition comprising: a lubricating base oil having a kinematic viscosity at 100° C. of 1-10 mm2/s, a % Cp of 70 or greater and a % CA of not greater than 2; a first viscosity index improver of 0.01-10% by mass, based on the total weight of the composition, wherein the first viscosity index improver is a poly(meth)acrylate having a weight-average molecular weight of not greater than 100,000; and a second viscosity index improver of 0.01-50% by mass, based on the total weight of the composition, wherein the second viscosity index improver is a polymer having a weight-average molecular weight of 100,000 or greater and containing a structural unit represented by the following formula (1) in a proportion of 0.5-70 mol %, the composition having a kinematic viscosity at 100° C. of 4-12 mm2/s and a viscosity index of 140-300.

Abstract: The present invention provides an environment friendly aviation fuel base oil having combustibility, oxidation stability and excellent life cycle characteristics and contributing to diversification of primary energy, which is produced by hydrotreating a feedstock comprising a mixed oil of an oxygen-containing hydrocarbon compound originating from an animal or vegetable fat and a sulfur-containing hydrocarbon compound or a feedstock comprising said mixed oil and a petroleum base oil produced by refining crude oil and an aviation fuel composition comprising the aviation fuel base oil, and an aviation fuel composition containing such an aviation fuel base oil.

Abstract: Provided is a method for producing aromatic hydrocarbons, by which a feedstock containing a hydrogenation-treated oil of a thermally cracked heavy oil obtainable from an ethylene production apparatus is brought into contact with a catalyst for monocyclic aromatic hydrocarbon production containing a crystalline aluminosilicate, and thereby aromatic hydrocarbons are produced. A raw material having an end point of the distillation characteristics of 400° C. or lower is used as the feedstock. The contact between the feedstock and the catalyst for monocyclic aromatic hydrocarbon production is carried out at a pressure of 0.1 MPaG to 1.5 MPaG.

Abstract: A light emitting element includes: a concave-convex structure layer, a first electrode, an organic layer, and a second electrode layer provided on a surface of a base member in this order; and a lens member arranged on an opposite surface of the base member on a side opposite to the surface, wherein a center of the lens member is coincident to a center of a light emitting portion in a plane view, the light emitting portion being an area of the organic layer between the first and second electrodes in a base member thickness direction; ratio of diameter D2 of the light emitting portion to diameter D1 of the lens member satisfies D2/D1?0.7; and ratio of distance d to diameter D1 of the lens member satisfies d/D1?0.25, distance d being between the opposite surface of the base member and the center of the light emitting portion.

Abstract: The temperature control system is provided with a lower heat removing unit which is disposed at the bottom of a reactor inside which an exothermic reaction takes place and through which a liquid coolant is flowed, and an upper heat removing unit which is disposed in the reactor further above from the lower heat removing unit and through which the liquid coolant is flowed, recovering reaction heat inside the reactor and controlling a temperature inside the reactor. The lower heat removing unit is supplied with the liquid coolant which is adjusted for temperature by a first temperature adjustment unit, and the upper heat removing unit is supplied with the liquid coolant which is adjusted for temperature by a second temperature adjustment unit different from the first temperature adjustment unit.

Abstract: Disclosed is a lubricating oil composition comprising: a lubricating base oil comprising 0.5% to 70% by mass of an ester base oil based on the total amount of the lubricating base oil, and having a kinematic viscosity at 40° C. of 18 to 28 mm2/s; and an organic molybdenum compound in an amount of 100 to 1000 mass ppm in terms of the molybdenum element based on the total amount of the lubricating oil composition, wherein the lubricating oil composition has a kinematic viscosity at 40° C. of 50 mm2/s or less.

Abstract: The hydrocarbon synthesis reaction apparatus is provided with a synthesis gas supply line in which a synthesis gas is compressed and supplied by a first compressor, a reactor configured to accommodate a catalyst slurry, a gas-liquid separator configured to separate an unreacted synthesis gas and hydrocarbons discharged from the reactor into a gas and a liquid, a first recycle line in which the unreacted synthesis gas after separation into a gas and a liquid is compressed and recycled into the reactor by a second compressor, and a second recycle line configured to recycle a residual unreacted synthesis gas after separation into a gas and a liquid into the inlet side of the first compressor at the time of start-up operation when the synthesis gas is gradually increased in the amount to be introduced.

Abstract: An object is to provide a method for producing a jet fuel composition capable of producing a jet fuel composition with excellent quality at a high yield even when a jet fuel blendstock derived from an FT synthesis oil is used, and a jet fuel composition produced by the production method. It is characterized by including a step of mixing a certain Fischer Tropsch (FT) synthesis jet fuel blendstock with a certain petroleum based jet fuel blendstock so that the ratio of the FT synthesis jet fuel blendstock in the composition ranges from 20 to 80% by volume.

Abstract: The present invention provides a refrigerating machine oil composition comprising an ester-based base oil, an epoxy compound, and a carbodiimide compound, the refrigerating machine oil composition being used with a refrigerant containing a fluoropropene in a refrigerating machine comprising a member containing polyethylene terephthalate and/or a member containing hydrogenated acrylonitrile butadiene rubber.