Abstract: A vehicle window glass with which it is possible to realize a vehicle space that is favorable to the skin of the occupant is provided. In a vehicle window glass according to the present disclosure, an average transmittance A in a near-infrared wavelength band from 780 nm to 2,500 nm is 65% or less, a value B, which is a percentage (b1/b2×100) of bl with respect to b2, is 50% or more, where b1 is an average transmittance in a visible-light long wavelength band of 650 nm to 750 nm, and b2 is an average transmittance in a visible-light total wavelength band of 380 nm to 780 nm, and the transmittance has a minimum value in the wavelength band of 500 nm to 600 nm.

Abstract: A window glass with a bracket for vehicle in which the manufacturing cost of the bracket can be reduced is provided. A window glass with a bracket for vehicle according to an aspect of the present disclosure includes a window glass for vehicle and a bracket made of a resin for fixing an information acquisition apparatus to the window glass for vehicle. The bracket includes a plurality of bracket pieces. The plurality of bracket pieces are each disposed so as to be spaced apart from each other on a main surface of the window glass for vehicle.

Abstract: A decrease in light transmittance is suppressed even after exposure to an acid while suppressing deflection. In the glass (10), a Young's modulus is 90 GPa or more, and an arithmetic average roughness Ra (nm) of a surface defined in JIS B 0601:2001 is equal to or less than a recycling parameter value shown in Formula (1).

Abstract: A novel compound and the like that are useful as a surface treatment agent capable of forming, on a substrate, a surface treatment layer with excellent water repellency and abrasion resistance are provided. The compound includes heavy hydrogen and the following Group 1, in which a ratio of the heavy hydrogen to light hydrogen is 0.1 mol % or more. Group 1: —Si(R1)nL3-n. R1 is each independently a hydrocarbon group, L is each independently a hydrolyzable group or a hydroxyl group and n is an integer from 0 to 2.

Abstract: The present invention relates to a method for manufacturing a glass sheet composite including two or more sheets and an intermediate layer between at least a pair of sheets of the sheets, the pair of the sheets consisting of a sheet 1A and a sheet 1B, at least one of the sheet 1A and the sheet 1B being a glass sheet, and the method including: applying a liquid agent for the intermediate layer and a sealant to at least a part of a main surface of the sheet 1A; bonding the sheet 1B to the main surface of the sheet 1A to which the liquid agent for the intermediate layer and the sealant are applied to obtain a laminate; and subjecting the laminate to reduced pressure.

Abstract: The present invention relates to hollow silica particles, which each includes a shell layer containing silica and a space inside the shell layer, in which the hollow silica particles have a peak intensity derived from SiOH at a wavenumber of around 3,746 cm?1 of 0.60 or less by infrared spectroscopy, a relative permittivity at 1 GHz of from 1.3 to 5.0 and a dielectric loss tangent at 1 GHz of from 0.0001 to 0.05.

Abstract: A glass sheet composite includes: a first sheet member and a second sheet member; and an intermediate layer between the first sheet member and the second sheet member, in which at least one member selected from the group consisting of the first sheet member and the second sheet member is a glass sheet, each of the first sheet member and the second sheet member is a sheet including a curved surface portion including a convex side main surface protruding in the sheet thickness direction and a concave side main surface opposite to the convex side main surface, the concave side main surface of the first sheet member and the convex side main surface of the second sheet member are overlapped opposite to each other, and the concave side main surface has a radius of curvature smaller than that of the convex side main surface.

Abstract: The invention provides an optical filter including a glass substrate, in which: on a first main surface of the glass substrate, a first barrier layer, a resin layer, and a first multilayer film are arranged in this order from the glass substrate; on a second main surface of the glass substrate, a second barrier layer and a second multilayer film are arranged in this order from the glass substrate; the glass substrate is a phosphate glass containing an infrared absorber; each of the first barrier layer and the second barrier layer independently contains, in an amount of 80 mol % or more, an oxide of at least one metal selected from the group consisting of titanium (Ti), niobium (Nb), tantalum (Ta), and hafnium (Hf); and each of the first multilayer film and the second multilayer film is independently composed of plural dielectric layers.

Abstract: Provided is a method for producing a fluorinated polymer with suppressed generation of hydrophilic group-containing by-products. The method for producing a fluorinated polymer according to the present invention includes polymerizing a monomer including a fluorine-containing monomer with the use of a polymerization initiator X, in an aqueous dispersion containing a hydrocarbon-containing surfactant and an aqueous medium, to obtain a fluorinated polymer, wherein the polymerization initiator X contains no hydrophilic group and has a molecular weight of 200 or less.

Abstract: An adhesive composition comprising a hydroxyl-terminated urethane prepolymer, a tackifier resin, and a polyisocyanate compound, in which the hydroxyl-terminated urethane prepolymer is a reaction product of an oxyalkylene polymer having a number-average molecular weight of 3,000 or more, and a diisocyanate compound.

Abstract: A new compound capable of forming a surface-treated layer having excellent light stability is provided. A compound reprsented by below-shown Formula (1) or (2). Note that each symbol in the formulas is the same as that described in the specification.

Abstract: Provided is a vehicle antenna system that is able to efficiently receive circularly polarized signals from the zenith direction. A vehicle antenna system (100) is provided with window glass (30) for a vehicle (20) and an antenna element (40) that is able to receive signals of a predetermined frequency band. The antenna element (40) is provided on a first principal plane of a dielectric substrate (43), and includes a radiating conductor (41) that is able to receive circularly polarized signals of a first frequency, and a grounding conductor (44) positioned opposite the radiating conductor (41) via the dielectric substrate (43). The normal direction of the first principal plane is less than or equal to 45° relative to the vertical direction, and the radiating conductor (41) is positioned away from the inner surface of the window glass (30) via the dielectric layer (60) in the direction of the vehicle interior.

Abstract: The present invention relates to a heat ray reflecting substrate including: a dielectric substrate; and a heat ray reflecting film formed on at least one main surface of the dielectric substrate, in which the heat-ray reflecting substrate has a radio wave transmitting region in at least a part of the at least one main surface of the dielectric substrate in a plan view, the radio wave transmitting region includes a slit portion where the heat ray reflecting film is not present, and in the radio wave transmitting region, a solar heat gain coefficient (g0) in a region including no slit portion and a solar heat gain coefficient (g1) in a region including the slit portion satisfy the following formula (a): g1<(1?f2)·g0+f2? (a), provided that f2 is a designed aperture rate, and ? is a solar heat gain coefficient of the dielectric substrate.

Abstract: The present invention relates to a composite substrate for graphene film production, the composite substrate including: a substrate having a thermal expansion coefficient of 2.0×10?6 (K?1) or less; an oxide film; and a metal film containing Cu or Ni, in this order, in which a prescribed diffraction peak is observed by XRD measurement for the metal film by a ?-2? method, and in a chart obtained by the XRD measurement, a diffraction peak derived other than the prescribed diffraction peak is not observed, or an intensity of diffraction peak other than the prescribed diffraction peak is 1/10 or less of an intensity of the prescribed diffraction peak.

Abstract: A composition that includes: a first perfluoropolymer having a glass transition temperature of 10° C. or lower; and a second fluoropolymer that contains a tetrafluoroethylene-based constituent unit and a perfluoro (alkyl vinyl ether)-based constituent unit, and is different from the first perfluoropolymer, the content of the perfluoro (alkyl vinyl ether)-based constituent unit, with respect to the total content of all the constituent units of the first perfluoropolymer and the second fluoropolymer, being from 0.1 to 10.0 mol %.

Abstract: The present invention relates to a method for producing a glass article, containing melting a glass raw material containing silica sand A and silica sand B by using a cold-top melting method, in which a volume-based median diameter of the silica sand A is larger than that of the silica sand B, a content of the silica sand B with respect to a total content of the silica sand A and the silica sand B is adjusted in a range of 1 mass % to 99 mass %, and the silica sand A and the silica sand B satisfy the requirements 1 and 2 described in the specification.

Abstract: The present invention provides a method for producing a fluorine-containing compound by introducing a fluorine atom into a wide variety of oxygen-containing compounds having a ketone group, an aldehyde group, a hydroxy group, or the like using SF5? stabilized by forming a salt with a glyme-coordinated alkali metal ion as a deoxofluorinating agent under relatively mild conditions. The present invention pertains to a method for producing a fluorine-containing compound, the method in which a fluorine-containing compound is produced by the deoxofluorination of an oxygen-containing compound having an aldehyde group, a ketone group, a carboxy group, or a hydroxy group in one or more solvents selected from the group consisting of DMPU, G4, DMA, HMPA, and MeCN using a deoxofluorinating agent represented by a general formula (E1) [in the formula, M represents Cs+, K+, or Rb+; G4 represents a tetraethylene glycol dimethyl ether; and n represents an integer of 1 to 4].

Abstract: A glass ceramic has a visible-light transmittance of 85% or more in terms of a thickness of 0.7 mm, and a haze value of 1.0% or less in terms of a thickness of 0.7 mm, and has a composition including, in mass % on an oxide basis: 45-70% of SiO2; 1-15% of Al2O3; and 10-25% of Li2O.

Abstract: A composition that contains a first perfluoropolymer having a glass transition temperature of 10° C. or lower, and a second fluoropolymer that contains tetrafluoroethylene and a constitutional unit ascribed to a compound represented by Formula (1) below, and is different from the first perfluoropolymer, the content of a perfluoro (alkyl vinyl ether)-based constitutional unit, with respect to the total content of all the constitutional units of the first perfluoropolymer and the second fluoropolymer, is 0.05 to 5.0 mol %: CF2?CF—CF2—O—Rf . . . (1), in Formula (1), Rf represents a perfluoroalkyl group having 1 to 10 carbon atoms, and optionally having an etheric oxygen atom between carbon atoms in the perfluoroalkyl group.

Abstract: A method for producing a sulfide solid electrolyte includes: supplying a sulfide solid electrolyte raw material to a tank of a heating furnace; and heating and melting the sulfide solid electrolyte raw material in a gas atmosphere containing a sulfur element. The method includes: obtaining a melt by the heating and melting; and setting a temperature on a bottom side of the melt to be higher than a temperature on a liquid surface side of the melt in the tank.