Abstract: A glass tube production method includes (1) preparing a tubular glass material, (2) irradiating an outer main surface of the tubular glass material with a laser to form an in-plane void region having a plurality of voids arranged on the outer main surface, and forming a plurality of internal void rows each having one void or two or more voids arranged from the in-plane void region toward an inner main surface of the tubular glass material, and (3) chemically strengthening the tubular glass material having the internal void rows formed therein.

Abstract: To provide a method whereby it is possible to efficiently produce an ion exchange membrane for alkali chloride electrolysis, which has high current efficiency and high alkali resistance at the time of electrolyzing an alkali chloride.

Abstract: A transparent screen includes a plurality of transparent plates arranged in a front-rear direction; and a screen main body, interposed between the transparent plates, configured to display video images projected from a front side or a rear side of the transparent screen to a user on the front side, and enable a rear background to be visually recognized by the user. In a cross section orthogonal to a part of an outer edge of the transparent screen, the transparent screen has a curved shape, and a length of a center line in a plate thickness direction of the transparent plate on an external side of the screen main body in a curvature radius direction of the curved shape is greater than a length of a center line of the transparent plate on an internal side of the screen main body.

Abstract: To provide a method for producing a liquid repellent molded product, whereby it is possible to uniformly apply, on the surface of a resin molded product, a liquid repellent composition containing an aqueous liquid having a compound having a perfluoroalkyl group with at most 6 carbon atoms dissolved or dispersed in an aqueous medium, and to obtain a liquid repellent molded product having excellent liquid repellency. The method for producing a liquid repellent molded product, comprises applying a liquid repellent composition comprising a fluorinated copolymer having structural units based on a monomer having a C4-6 perfluoroalkyl group, water and a C1-4 alcohol, to a resin molded product, and is characterized in that the content of the alcohol is from 70 to 99.9 mass % based on 100 mass % of the liquid repellent composition, and the application amount of the liquid repellent composition to the resin molded product is from 0.001 to 0.2 g/m2 as the amount of fluorine atoms.

Abstract: To provide a production method for obtaining a coated article provided with a coating film having excellent weather resistance by using a powder coating material. A method for producing a coated article, which comprises applying a powder coating material comprising a fluororesin (A), a non-fluororesin (B) and a metallic pigment (C) to the surface of a substrate, and heating the substrate having the powder coating material applied, to a temperature of at least the glass transition temperature of the fluororesin (A) and the non-fluororesin (B), followed by cooling, to form a coating film on the substrate surface, and which is characterized in that the content of the metallic pigment (C) is from 0.7 to 23 mass % to the total amount of the powder coating material, the PCI value of the coating film is at least 6, and the flip-flop value is at least 1.2.

Abstract: To prevent degradation of electrical characteristics caused by a resin filled between electrodes in an ultraviolet light-emitting operation, there is provided a nitride semiconductor wafer having ultraviolet light-emitting elements on a substrate 12, each element including a semiconductor laminated portion 21 constituted by an n-type AlGaN layer 16, an active layer 17 composed of an AlGaN layer, and p-type AlGaN layers 19 and 20, an n-electrode 23, a p-electrode 22, a protective insulating film 24, first and second plated electrodes 25 and 26, and a fluororesin film 27. The p-electrode is formed on an upper surface of the p-type AlGaN layer in the first region R1 and the n-electrode is formed on an upper surface of the n-type AlGaN layer in the second region R2. The protective insulating film has openings for exposing at least parts of the n-electrode and the p-electrode.

Abstract: A glass plate production method includes (1) preparing a glass material having a first main surface and a second main surface opposite to each other; (2) irradiating the first main surface of the glass material with a laser to form an in-plane void region having a plurality of voids arranged on the first main surface, and forming a plurality of internal void rows each having one void or two or more voids arranged from the in-plane void region toward the second main surface of the glass material; and (3) chemically strengthening the glass material having the internal void rows formed therein.

Abstract: A translucent structure includes a translucent substrate and an antireflection layer provided on a visible side of the translucent substrate so that reflectivity of the translucent structure based on an SCI method is 3% or less. A visible-side outermost surface of the translucent structure includes a concave and convex structure as follows. The concave and convex structure includes a first convex portion and a second convex portion. The first convex portion has a diameter exceeding 10 ?m and 185 ?m or less in a specific section, and a specific maximum height is 0.2 to 8 ?m. The second convex portion has a diameter exceeding 1 ?m in a specific section, the number thereof is 0.0001 to 1.2 per 1 ?m2, and a specific average height thereof is 0.1 to 8 ?m.

Abstract: To provide a production method whereby an ion exchange membrane for alkali chloride electrolysis can be obtained which has high current efficiency, little variation in current efficiency and high alkaline resistance. This is a method for producing an ion exchange membrane 1 having a layer (C) 12 containing a fluorinated polymer (A) having carboxylic acid type functional groups, by immersing an ion exchange membrane precursor film having a precursor layer (C?) containing a fluorinated polymer (A?) having groups convertible to carboxylic acid type functional groups, in an aqueous alkaline solution comprising an alkali metal hydroxide, a water-soluble organic solvent and water, and converting the groups convertible to carboxylic acid type functional groups to carboxylic acid functional groups, wherein the concentration of the water-soluble organic solvent is from 1 to 60 mass % in the aqueous alkaline solution (100 mass %); the temperature of the aqueous alkaline solution is at least 40° C. and less than 80° C.

Abstract: To provide a colored glass plate of which the mass ratio of divalent iron as calculated as Fe2O3 to total iron as calculated as Fe2O3 can be stably maintained at a high level while amber coloring derived from salt cake (Na2SO4) is suppressed by reducing the amount of salt cake used as a refining agent, and which has less bubbles regardless of a small amount of total sulfur as calculated as SO3. A colored glass plate which is made of alkali-containing silica glass containing iron, tin and sulfur, wherein, as represented by mass % based on oxides, the proportion of total sulfur as calculated as SO3 is less than 0.025%, the proportion of divalent iron as calculated as Fe2O3 to total iron as calculated as Fe2O3 is at least 45%, the proportion of divalent tin as calculated as SnO2 to total tin as calculated as SnO2 is at least 0.1% as represented by mol %, and ?-OH is at least 0.15 mm?1.

Abstract: The present invention relates to an ultraviolet-absorbing glass article containing, as represented by mass % based on oxides, as a glass matrix composition: SiO2: 66 to 75%, Na2O: 10 to 20%, CaO: 5 to 15%, MgO: 0 to 6%, Al2O3: 0 to 5%, K2O: 0 to 5%, FeO: 0.2 to 1.2%, total iron as represented by Fe2O3: 2.4 to 4%, and TiO2: more than 0% and 1% or less, containing from 50 to 400 mass ppm of CoO, containing from 0 to 70 mass ppm of Se, containing from 0 to 800 mass ppm of Cr2O3, having a total content of CoO, Se and Cr2O3 of less than 0.1 mass %, and having an ultraviolet transmittance (TUV) (ISO9050:2003) of 2% or less at a thickness of 3.5 mm.

Abstract: A resin optical waveguide containing a core, an under cladding and an over cladding having refractive indices lower than that of the core, in which the resin optical waveguide has, at one end side of, a core-exposed section at which the over cladding is not present and the core and the under cladding nearby the core are exposed and, of the under cladding, a portion corresponding to the core-exposed section has a first layer and a second layer that satisfy a certain condition.

Abstract: The present invention provides a laminate including a support substrate, a silicone resin layer and a substrate arranged in this order, in which the silicone resin layer contains at least one metal element selected from the group consisting of 3d transition metals, 4d transition metals, lanthanide metals, and bismuth and in which end portion degradation of a silicone resin layer is suppressed.

Abstract: The present invention provides a laminate superior in foaming resistance, including a support substrate, a silicone resin layer and a substrate arranged in this order, in which the silicone resin layer contains at least one metal element selected from the group consisting of zirconium, aluminum, and tin.

Abstract: To provide a fluororubber molded article which is inexpensive and excellent in fuel barrier properties against an alcohol-containing fuel. A fluororubber molded article obtained by molding and crosslinking a cross-linkable composition comprising a fluoroelastomer (A) and a fluoroelastomer (B), wherein the fluoroelastomer (A) is a copolymer comprising tetrafluoroethylene units and perfluorovinyl ether units represented by CF2?CF—O—Rf (Rf is a C1-20 perfluoroalkyl group or a C2-20 perfluoroalkyl group having an etheric oxygen atom between carbon atoms), the fluoroelastomer (B) is a copolymer comprising tetrafluoroethylene units, propylene units and vinylidene fluoride units, and the mass ratio of (A)/(B) is from 99/1 to 30/70.

Abstract: A phase-separated glass for chemical strengthening has a total light reflectance of 10% or more in a wavelength range of 380 nm to 780 nm and a value obtained by dividing a maximum value of the total light reflectance by a minimum value of the total light reflectance of 4.2 or less, when measured in a form of a plate having a thickness of 1 mm.

Abstract: A laminated body includes a substrate provided with a first surface; a rugged layer including fluorine; and an antifouling layer. The rugged layer has an average surface roughness of 0.05-50 nm. A peak of a binding energy of F1s in the rugged layer falls within 684-687.5 eV, a ratio of atomic concentrations of fluorine to silicon obtained from peaks of binding energies of F1s and Si2p falls within 0.003-100. A peak of a binding energy of F1s in the antifouling layer falls within 687.5-691 eV. An F-value, (A?B)/(C?B), is 0.1 or more, where “A” is an F-K? line strength of the laminated body measured from the antifouling layer side by a fluorescent X-ray measurement device, “B” is an F-K? line strength of a glass plate with only trace amounts of fluorine, and “C” is an F-K? line strength of an aluminosilicate glass plate including fluorine of 2 wt %.

Abstract: A glass includes, in mass percentage on an oxide basis, 50 to 85% of SiO2, 0 to 10% of B2O3, 1 to 20% of Na2O, and 20% or less of K2O, and Sb2O3 is substantially not contained. A total content (Ni+Cr) is more than 0 ppm by mass and 1.2 ppm by mass or less. A total iron oxide (t-Fe2O3) in terms of Fe2O3, a ratio (Na2O/Al2O3) and a total content (Al2O3+K2O) fall within specific ranges, respectively. The contents of each component satisfy a specific relationship.

Abstract: Window glass for a vehicle includes laminated glass including a vehicle exterior side glass plate, a vehicle interior side glass plate and an interlayer interposed between the vehicle exterior side glass plate and the vehicle interior side glass plate; and a conductor pattern including a heating wire disposed on a vehicle interior side surface of the vehicle exterior side glass plate to heat a heating area, and a feeding electrode disposed on a part of the vehicle interior side surface close to a lower side of the vehicle exterior side glass plate such that the heating wire is fed with power through the feeding electrode; wherein the feeding electrode is disposed so as not to extend into the heating area.

Abstract: An air-conditioning apparatus can suppress occurrence of disproportionation (an autolytic reaction) when HFO1123 refrigerant or a refrigerant mixture containing HFO1123 is applied. The air-conditioning apparatus includes a controller controlling at least one of an operation frequency of a compressor, an opening degree of an expansion valve, and an air amount of a fan sending air to a heat-source-side heat exchanger so that a temperature and a pressure of the refrigerant discharged from the compressor do not exceed threshold values.