Abstract: There are provided a cell culture substrate that enables efficient spheroid formation for cells and can form spheroids having a uniform size and an arbitrary shape at a high cell viability, a method for producing the cell culture substrate, and a method of producing spheroids in which the cell culture substrate is used and a cell viability inside of the spheroids is excellent. A cell culture substrate includes a substrate and a stimulus-responsive polymer coated on the substrate, wherein the stimulus-responsive polymer is a block copolymer having a water-insoluble block segment and a stimulus-responsive block segment, and the cell culture substrate includes the following two regions (A) and (B): (A) an island-shaped region having cell proliferation properties and stimulus responsiveness and having an area of 0.001 to 5 mm2; and (B) a region adjacent to the region (A) and having no cell proliferation properties.

Abstract: The present invention provides a treatment method of a radioactive iodine-containing fluid, comprising passing the radioactive iodine-containing fluid through an adsorbent for iodine consisting of a silver-containing binderless zeolite molded body having a silver content of 50 mass % or less, to adsorb the radioactive iodine on the adsorbent for iodine.

Abstract: An oxide sintered body is provided which does not splash from the target surface even at the time of high power film formation, has a high film formation rate, and is used in a sputtering target capable of providing a high-refractive-index film. An oxide sintered body is used which contains zinc, niobium, aluminum and oxygen as constituent elements and in which Nb/(Zn+Nb+Al)=0.076 to 0.289 and Al/(Zn+Nb+Al)=0.006 to 0.031, where Zn, Nb and Al denote contents of zinc, niobium and aluminum, respectively.

Abstract: A synthetic resin skin material includes, on one side of a base material 12, an adhesive layer 14, a skin layer 16, and a surface processing layer 18 in this order from the base material 12, the adhesive layer 14 and the skin layer 16 containing a polyurethane urea resin having a number average molecular weight of from 35,000 to 100,000.

Abstract: A synthetic resin skin material includes, on one side of a base material 12, an adhesive layer 14, a skin layer 16, and a surface processing layer 18 in this order from the base material 12, the adhesive layer 14 and the skin layer 16 containing a polyurethane urea resin having a number average molecular weight of from 35,000 to 100,000.

Abstract: A catalyst containing a quaternary ammonium salt represented by the following general formula (1) is used as a catalyst for dissociation of a blocking agent. [In the formula, each of R1 to R3 represents an aliphatic hydrocarbon group having 1 to 8 carbon atoms or an aromatic hydrocarbon group having 6 to 14 carbon atoms; R4 represents an aliphatic hydrocarbon group having 9 to 20 carbon atoms; X represents at least one member selected from the group consisting of a phosphate group, a borate group, a hydrogencarbonate group, a monoalkylcarbonate group and a carbonate group; a is an integer in the range of 1 to 3; and b is an integer in the range of 1 to 3.

Abstract: To provide a medium suitable for high speed/high resolution, rich in hydrophilicity and resistant to a high concentration aqueous alkaline solution. A medium comprising crosslinked polymer particles containing from 20 to 95 mol % of repeating units derived from a (meth)acryloyl monomer represented by the formula (1): wherein R2 is a hydrogen atom or a C1-4 alkyl group, R1 is —NR3-R4-R5 or —O—R4-R5, R3 is a hydrogen atom or a C1-4 alkyl group, R4 is a C6-15 alkylene group containing an alicyclic ring or a C4-8 linear alkylene group, and R5 is a halogen atom, an alcoholic OH group, an amino group, a glycidyl group or an epoxy group.

Abstract: A transparent conductive zinc oxide based film according to the present invention contains Ti, Al and Zn in such a proportion that satisfies the following formulae (1), (2) and (3) in terms of atomic ratio, and has a plurality of surface textures different in size on a surface, wherein a center-line average surface roughness Ra of the surface of the transparent conductive film is 30 nm to 200 nm, and an average value of widths of the surface textures is 100 nm to 10 ?m. 0.001?Ti/(Zn+Al+Ti)?0.079.??(1) 0.001?Al/(Zn+Al+Ti)?0.079??(2) 0.010?(Ti+Al)/(Zn+Al+Ti)?0.

Abstract: A novel material having high hole-transporting ability and a high glass transition temperature and having long-lasting durability is obtained. A benzofluorene compound represented by formula (1) is used. (In the formula, M is a substituted or unsubstituted aryl group having 6-40 carbon atoms or a substituted or unsubstituted heteroaryl group having 5-40 carbon atoms; Ar1 to Ar4 each independently is a substituted or unsubstituted aryl group having 6-40 carbon atoms or a substituted or unsubstituted heteroaryl group having 5-40 carbon atoms, provided that at least one of Ar1 to Ar4 is a substituent represented by any of the following formulae (2) to (5); and p is an integer of 0-2.

Abstract: To provide a method for producing a low-odor polyester-type flexible polyurethane foam which is excellent in formability and free from scorch in the interior of the foam, and further discharges substantially no volatile amine compound from a product, in the production of a polyester-type flexible polyurethane foam, and to provide a catalyst composition to be used for the production method.

Abstract: A vinyl chloride-based resin latex which froths little when unreacted monomer remaining in the latex are recovered under heat and reduced-pressure conditions, and a thermal transfer image-receiving sheet which has satisfactory water resistance, does not yellow during storage, and gives images having excellent durability and light resistance. The invention provides a vinyl chloride-based resin latex contains a copolymer containing a vinyl chloride and an epoxy-group-containing vinyl or contains vinyl chloride, an epoxy-group-containing vinyl, and a carboxylic acid vinyl ester, wherein a content of the epoxy-group-containing vinyl is 0.1% by weight or more but less than 3% by weight, and wherein the latex contains no surfactant, and has a solid concentration of 25% by weight or more; a process for producing the latex; and a thermal transfer image-receiving sheet obtained using the latex.

Abstract: Provided is a chlorinated polyether which has excellent solubility in solvents and excellent thermal stability, has the excellent effect of improving the adhesion of coating materials, inks, and adhesives to polyolefins, can be expected to be usable as a flame retardant, and is useful also as a novel starting material for polyurethanes. The polyether is a novel chlorinated polyether containing, as a repeating unit, at least one of the chlorinated-ether residue represented by the following formula (1) and the chlorinated-ether residue represented by the following formula (2). Also provided is a novel polyurethane obtained therefrom.

Abstract: A material suitable for sealing an LED element or for a gas barrier layer for a resin component, and an LED device, an FPD device and a semiconductor device using it. A process for producing a polymer composition, which includes mixing and reacting as component (A), an unsaturated group-containing siloxane compound of the following formula (1): wherein the siloxane structure is a chain or cyclic structure, as component (B), a siloxane compound having a structure of the following formula (2) wherein hydrogen is directly bonded to silicon, wherein the siloxane structure is a chain or cyclic structure, as component (C), at least one member selected from the group consisting of organic metal compounds of Group 1, 2, 12, 13 and 14 metals of the periodic table, and as component (D), a metal catalyst of Group 8, 9 or 10 metal of the periodic table.

Abstract: A method for producing a carotenoid comprising the steps of cultivating a cell transformed with a DNA sequence comprising a DNA sequence depicted in anyone of SEQ ID NOs: 2-7 or a cell transformed with a vector having a DNA sequence depicted in anyone of SEQ ID NOs: 2-7 under proper culture conditions and isolating the carotenoid from the cell or the culture.

Abstract: To provide a catalyst composition which is a catalyst composition not impairing the physical properties of a polyurethane resin and the storage stability of the starting material blend liquid and which is capable of producing a polyurethane resin excellent in curability and also excellent in moldability by suppressing the initial reactivity, with good productivity.

Abstract: To provide a catalyst composed of a salt of a phosphazenium cation and an active hydrogen compound anion, which can be easily synthesized, does not contain metal components at all, and does not leave any odor on a resulting product; a method for its production; an economical and efficient method for producing a polyalkylene oxide by means thereof; and a salt of a phosphazenium cation and an active hydrogen compound anion, represented by the following formula (2): [in the above formula (2), each of R1 and R2 which are independent of each other, is a C1-10 alkyl group, an unsubstituted or substituted C6-10 phenyl group, or an unsubstituted or substituted C6-10 phenylalkyl group, provided that R1 and R2, or R2's, may be bonded to each other to form a ring structure, n is a real number of from 1 to 8, and Yn? is an anion of an active hydrogen compound which is obtained by removing n protons from an active hydrogen compound Y] is used as a polyalkylene glycol producing catalyst.

Abstract: An amine derivative represented by the following general formula (1) and exhibiting a temperature difference of 30° C. or more as defined by the difference of [decomposition temperature (° C.) minus sublimation temperature (° C.)]: wherein R1 and R2 independently represent a substituted or unsubstituted C6-40 aryl or C5-40 heteroaryl group; and R3 and R4 independently represent a hydrogen atom, a straight-chain, branched or cyclic C1-18 alkyl or C1-18 alkoxy group, or a substituted or unsubstituted C6-40 aryl or C5-40 heteroaryl group, provided that R3 and R4 may form together a cyclic hydrocarbon group. The amine derivative is useful as an organic electroluminescent material.

Abstract: To provide a cylindrical sputtering target, whereby cracking during sputtering can be remarkably reduced. A cylindrical sputtering target, wherein a cylindrical target material made of ITO or AZO has a relative density of at least 90%; the angle between the grinding direction on its outer circumferential surface and a straight line parallel with its cylindrical axis (out of such angles, ? represents an angle between 0° and 90°) satisfies 45°<??90° or tan ?>?R/L (where R is an outside diameter of the cylindrical target material, and L is the length of the cylindrical target material); and the surface roughness Ra of the outer circumferential surface of the cylindrical target material is at most 3 ?m.

Abstract: The subject of the present invention relates to obtaining a zirconia sintered body having excellent in both properties of a translucency and a mechanical strength. The present invention relates to obtaining a high-strength zirconia sintered body having a translucency of an in-line transmission of 50% or more at a sample thickness of 1 mm for visible light at a wavelength of 600 nm and an average flexural strength of 300 MPa or more by subjecting a zirconia primary sintered body having an average grain size of 1 ?m or less and a relative density of 92% or more and the crystal phase composed of cubic crystals only to HIP treatment at a temperature of 1,250° C. to 1,600° C. and a pressure of at least 50 MPa. The primary sintered body is obtained by maintaining a molded body of a zirconia powder containing 7 mol % to 30 mol % of yttria at 1,100° C. to 1,300° C. for at least 5 hrs or by heating the molded body at a high rate of temperature rise of 500° C./hr or more.

Abstract: A 1,2,4,5-substituted phenyl compound represented by the formula (1): wherein one of X1-X5 is nitrogen and the remainders of X1-X5 are carbon; R1 and R2 represent hydrogen, C1-6 alkyl or C1-6 alkoxy; R3 and R4 represent C1-6 alkyl or C1-6 alkoxy; and m is an integer of 0-4, and n is an integer of 0-5. This compound is useful as a constituent for an organic electroluminescent device.