Abstract: A compound for an organic thin film transistor having a structure represented by the following formula (1): wherein R1 and R2, and R3 and R4 are respectively combined with each other to form an aromatic hydrocarbon ring having 6 to 60 carbon atoms or an aromatic heterocyclic ring having 3 to 60 carbon atoms; the ring being fused to the ring to which the groups are bonded, whereby the structure of the formula (1) has 5 or more aromatic rings that are fused; and the fused rings formed by R1 and R2, and R3 and R4 each may have a substituent.

Abstract: A monobenzochrysene derivative shown by the following formula (1): wherein R1 to R14 are independently a hydrogen atom or a substituent, and at least one of R1 to R14 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms which does not contain an anthracene skeleton and a benzo[g]chrysene skeleton or a substituted or unsubstituted heteroaryl group having 5 to 50 ring carbon atoms which does not contain an anthracene skeleton and a benzo[g]chrysene skeleton, excluding the case where R8 and R9 are unsubstituted phenyl groups and R1 to R7 and R10 to R14 are hydrogen atoms and the case where R9 is an unsubstituted phenyl group and R1 to R8 and R10 to R14 are hydrogen atoms.

Abstract: In an organic electroluminescence display device (30) comprising an organic EL element (26) having a structure wherein an organic luminescent medium (24) is sandwiched between a top electrode (20) and a bottom electrode (22), and a driving circuit (14) for driving the organic EL element (26), the organic luminescent medium (24) comprises a host compound and a triplet-related luminous compound and the driving circuit (14) applies a electric pulse voltage or pulse current having a frequency of 30 Hz or more and a duty ratio of 1/5 or less. In this way, it is possible to provide an organic EL display device which consumes a low electric power and has a long luminous life span, and a method for driving the same.

Abstract: An aromatic amine derivative is represented by the following formula (1). In the formula (1), R1 to R10 each independently represent a hydrogen atom and a substituent. In the formula (1); R1 is represented by the following formula (2); any one of R2 to R5 and R7 to R10 is represented by the following formula (2); and L1 to L3 each independently represent a single bond, a divalent residue of an aryl group, or the like. In the formula (2); Ar1 is a monovalent substituent having a partial structure represented by the following formula (3); X represents an oxygen atom or a sulfur atom; and A and B represent a six-membered ring. In the formula (2), Ar2 is an aryl group, a monovalent substituent having a partial structure represented by the formula (3), and the like.

Abstract: Provided are an aromatic polycarbonate resin composition, including, with respect to 100 parts by mass of an aromatic polycarbonate resin (A), 0.005 to 0.5 parts by mass of a diphosphite compound (B) represented by the following general formula (I) and 0.001 to 0.5 parts by mass of an alicyclic epoxy compound (C), and an optical molded article: in the formula (I), R1, R2, R4, R5, R7, R8, R10, and R11 each independently represent a hydrogen atom, an alkyl group, or the like, R3, R6, R9, and R12 each independently represent an alkyl group, an aryl group, an aralkyl group, or the like, and m each independently represent an integer of 0 to 3.

Abstract: Provided is a material for an organic electroluminescence device, which further has a bulky carbazolyl group at each of the 3-position and 6-position of its central carbazole skeleton, and which has a dibenzofuran skeleton or a dibenzothiophene skeleton at the N atom of the central carbazole skeleton through a linking group as required. Also provided is an organic electroluminescence device, including one or more organic thin film layers including a light emitting layer between a cathode and an anode, in which at least one layer of the organic thin film layers contains the material for an organic electroluminescence device.

Abstract: The present invention provides a lubricating oil for a compression type refrigerator including a polyvinyl ether-based compound containing an alkylene glycol or polyoxyalkylene glycol unit and a vinyl ether unit in a molecule and having a molecular weight in a range of 300 to 3,000, an epoxy compound having 8 or more carbon atoms The lubricating oil for a compression type refrigerator of the present invention has high miscibility and high viscosity index, and is excellent in stability, and does not have an unpleasant odor under carbon dioxide atmosphere.

Abstract: Provided is an organic electroluminescent device in which an organic thin film layer comprising a single layer or plural layers comprising a phosphorescence light-emitting layer containing at least a host material and a phosphorescent organic metal complex is interposed between a cathode and an anode, wherein the total of the halogen element mass concentrations of bromine, iodine and chlorine which are contained as impurities in the host material constituting the light-emitting layer described above is 50 ppm or less. It has a high emission luminance, a high luminous efficiency and a long life.

Abstract: An aromatic amine derivative with a specific structure having a carbazole skeleton to which a diarylamino group bonds via a bonding group. An organic electroluminescence device which is composed of one or more organic thin film layers including at least one light emitting layer sandwiched between a cathode and an anode, wherein at least one of the organic thin film layers contains the aromatic amine derivative singly or as its mixture component. Organic electroluminescence devices with enhanced efficiency of light emission and a compound realizing the devices are provided.

Abstract: Provided is a polycarbonate resin composition including, with respect to 100 parts by mass of an aromatic polycarbonate resin mixture (A) consisting of 5 to 100 mass % of an aromatic polycarbonate-polyorganosiloxane copolymer (A-1) and 95 to 0 mass % of an aromatic polycarbonate resin (A-2) except the component (A-1), the aromatic polycarbonate resin mixture (A) having a content of a polyorganosiloxane unit is 1 mass % or more, 0.002 to 0.200 parts by mass of a phosphorus-based antioxidant (B) and 0 to 0.200 parts by mass of an epoxidation stabilizer (C), in which a reduction ratio P between the viscosity-average molecular weights of the resin composition before and after a pressure cooker test calculated from the calculation equation (I) is 20% or less.

Abstract: A sputtering target containing oxides of indium (In), gallium (Ga) and zinc (Zn), which includes a compound shown by ZnGa2O4 and a compound shown by InGaZnO4.

Abstract: Disclosed is an organic electroluminescence device in which an organic thin film which is composed of one or more layers including at least a light-emitting layer is interposed between a cathode and an anode. Since at least one layer of the organic thin film contains a novel aromatic amine derivative, which has an asymmetric structure wherein two different amine units are bonded through a linking group, by itself or as a component of a mixture, molecules are hardly crystallized, thereby improving the production yield of the organic electroluminescence device. This organic electroluminescence device has a long life.

Abstract: An organic electroluminescence device that includes an anode, an emitting layer that includes a host and a dopant, a blocking layer, an electron injecting layer, and a cathode where the blocking layer includes an aromatic heterocyclic derivative, the triplet energy ETb (eV) of the blocking layer is larger than a triplet energy ETh (eV) of the host, and the affinity Ab (eV) of the blocking layer and an affinity Ae (eV) of the electron injecting layer satisfy a relationship of Ae?Ab<0.2.

Abstract: The invention provides a water-soluble metal-working oil agent, including a component A, a component B, a component C, and a component D, wherein the component A is an ester compound which has a characteristic temperature, as measured in accordance with JIS K2242, of 570° C. or higher and which is contained in the water-soluble metal-working oil agent in an amount of 10 mass % or more with respect to the entire amount of the agent; the component B is at least one condensed fatty acid which is selected from a condensed fatty acid (1), produced through dehydration condensation of a hydroxycarboxylic acid, and a condensed fatty acid (2), produced through dehydration condensation of an alcoholic hydroxyl group of the condensed fatty acid (1) with a monovalent carboxylic acid, which has a characteristic temperature, as measured in accordance with JIS K2242, of 650° C. or higher, and which is contained in the water-soluble metal-working oil agent in an amount of 7.

Abstract: An aromatic amine derivative is represented by a formula (1) below. In the formula (1), R2 to R5, R7 to R9 and R10 are each independently a hydrogen atom or a substituent. In the formula (1), R1 and R6 are represented by a formula (2) below, and L1 to L3 are each independently a single bond and the like. In the formula (2), Ar1 is a monovalent residue derived from the ring structure represented by a formula (4) below, X is an oxygen atom or a sulfur atom, and at least one of R11 to R18 is an alkyl group. In the formula (1), Ar2 is an aryl group or a monovalent residue derived from the ring structure represented by the formula (4).

Abstract: A biscarbazole derivative of the invention is represented by a formula (1A) or (1B) below. In the formula (1A) or (1B): A1 represents a substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; A2 represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; X1 and X2 each are a linking group; Y1 to Y4 each represent a substituent; p and q represent an integer of 1 to 4; and r and s represent an integer of 1 to 3.

Abstract: A belt conveyor, a collecting hopper and a screw conveyor are sequentially disposed below a chute for feeding hydrogenated petroleum resin pellets from a pelletizing portion. Even when the hydrogenated petroleum resin pellets fed onto the belt conveyor are dropped off or scattered, the hydrogenated petroleum resin pellets can be collected by the collecting hopper that is located below and can be securely transferred to an outside by the screw conveyor.

Abstract: A polycarbonate-base light-diffusing resin composition contains: (A) 100 parts by mass of an aromatic polycarbonate resin; (B) 0.01 to 10 parts by mass of a light diffusing agent; (C) 0.05 to 5 parts by mass of a light resistant agent, the light resistant agent being one or more light resistant agent selected from a malonate-base compound, an oxalylanilide-base compound, a benzotriazole-base compound and an acrylic resin having a side chain of a benzotriazole-base skeleton; and 0.01 to 1 parts by mass of an ester compound of fatty acid and multivalent alcohol. By molding the composition by injection molding or the like, a light diffusing plate is obtained.

Abstract: An aqueous detergent according to the invention contains substantially no polyalkylene glycol, but contains a salt of at least one of the following carboxylic acids A, B and C: A: an aliphatic monobasic carboxylic acid having a total carbon number of 9 or 10 and including a branched alkyl group; B: sebacic acid; and C: an aromatic monobasic carboxylic acid having a total carbon number of 11 to 13.

Abstract: An aromatic amine derivative is represented by the following formula (1). In the formula (1), R2 to R5, R7 to R9 and R10 are each independently a hydrogen atom or a substituent. R1 and R6 in the formula (1) are each represented by the following formula (2), in which L1 to L3 are each independently, for instance, a single bond. Ar1 in the formula (2) is a monovalent residue derived from a ring structure of the following formula (4), in which X is an oxygen atom or a sulfur atom and at least one of R11 to R18 is a substituted aryl group. Ar1 in the formula (1) is, for instance, an aryl group or a monovalent residue derived from the ring structure of the formula (4).