Abstract: The present invention relates to an optical glass having refractive index of 1.55 or more and having chromaticity b* that satisfies b*?4.8 under A light source in a CIELab representation. The present invention also relates to an optical glass having refractive index of 1.55 or more, having a ratio (b*/|a*|) of chromaticity b* to an absolute value of chromaticity a* that satisfies b*|a*|?0.55 under A light source in a CIELab representation, and satisfying b*?0.1.

Abstract: A vehicular laminated glass, which has a first glass plate and a second glass plate facing each other, an interlayer between the first glass plate and the second glass plate, and a light control film capable of switching the visible light transmission provided inside the interlayer, which further has a lower edge portion to which wiring to the light control film is connected, an upper edge portion facing the lower edge portion, and side edge portions connecting the upper edge portion and the lower edge portion, wherein the first glass plate has a first main surface located on the opposite side to the interlayer and a second main surface facing the interlayer, the second glass plate has a third main surface facing the interlayer and a fourth main surface located on the opposite side to the interlayer, which has a first shielding layer between the first main surface and the light control film.

Abstract: Provided is a wood preservation treatment liquid including: an organic solvent containing 1-chloro-2,3,3,3-tetrafluoropropene; and a wood preservative.

Abstract: The present invention relates to a method for producing crystallized glass, including: (a1) melting a glass raw material to obtain molten glass; (a2) molding the molten glass into a predetermined shape by a molding unit to obtain a glass molded body; (a3) slowly cooling the glass molded body to obtain a raw glass plate containing at least one of a crystal nucleus and a separated phase; and (a4) heat-treating the raw glass plate containing the at least one of the crystal nucleus and the separated phase to cause crystal growth so as to obtain the crystallized glass.

Abstract: The present invention relates to a circuit board for a high-frequency device, including: a glass substrate in which a crystal is precipitated and cuttable by etching, and which has a dielectric loss tangent at 20° C. and 10 GHz of 0.0090 or less, and relates to a high-frequency device including the circuit board.

Abstract: A vibration device includes: a glass vibration plate including a plurality of glass plates being laminated, and a solid-phase intermediate layer between at least a pair of the glass plates among the glass plates; a vibrator fixed to the glass vibration plate and configured to vibrate the glass vibration plate, in which the glass vibration plate includes a temperature adjustment unit configured to adjust a temperature of the intermediate layer.

Abstract: A reflective mask blank for EUV lithography, includes: a substrate; a conductive film; a reflective layer; and an absorption layer, the absorption layer absorbing the EUV light, wherein the conductive film has a refractive index n?1000-1100 nm of 5.300 or less and has an extinction coefficient k?1000-1100 nm of 5.200 or less, at a wavelength of 1000 nm to 1100 nm, the conductive film has a refractive index n?600-700 nm of 4.300 or less and has an extinction coefficient k?600-700 nm of 4.500 or less, at a wavelength of 600 nm to 700 nm, the conductive film has a refractive index n?400-500 nm of 2.500 or more and has an extinction coefficient k?400-500 nm of 0.440 or more, at a wavelength of 400 nm to 500 nm, and the conductive film has a film thickness t of 40 nm to 350 nm.

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: To provide a substrate for a high frequency device, which satisfies requirements of low dielectric loss tangent, adhesion and transparency. A substrate for a high frequency device comprising a transparent glass substrate 16 and a transparent resin base material 20 bonded to the glass substrate 16 via an optical clear adhesive 18, wherein the dielectric loss tangent of the resin base material 20 in dielectric loss tangent measurement test is 0.01 or less, the peel strength in peel test is 3.0 Worn or more, and the amount of out gas in out gas test is 5.0 ?g/g or less.

Abstract: Provided are a resin composition for 3D printer which is low in viscosity, is good in handleability by 3D printers and can give shaped products excellent in flexibility in a broad temperature range, and a method for producing the same, and a cured product of the resin composition. The resin composition for 3D printer of the present invention contains a first monomer, a second monomer, and a photopolymerization initiator, wherein the first monomer is a reaction product of a particular polyether polyol, a polyisocyanate and a particular compound having a (meth)acryloyl group; the total number of moles of the hydroxyl group of the polyether polyol and a group reactive with isocyanate group of the compound having a (meth)acryloyl group is equal to the number of moles of the isocyanate group of the polyisocyanate; and the second monomer is a (meth)acrylic compound.

Abstract: To provide a fluorinated ether compound, a fluorinated ether composition and a coating liquid excellent in chemical resistance, an article having a surface layer excellent in chemical resistance and a method for producing it, and a method for producing a fluorinated ether compound excellent in chemical resistance. A fluorinated ether compound which has a first partial structure represented by the following formula (1) and a second partial structure represented by the following formula (2), and which has at least five first partial structures, or has at least two second partial structures: —ORf12—??(1) —ORf13—??(2) wherein Rf12 is a C1-6 fluoroalkylene group, and Rf13 is a group having a fluorinated cyclic structure which may have a hetero atom.

Abstract: The present invention relates to a method for decomposing polyfluorocarboxylic acids, characterized in that a mixture containing polyfluorocarboxylic acids, water, and a basic compound is heated.

Abstract: An apparatus for bending a glass plate includes a lower ring mold to be disposed under a glass plate and configured to support an edge portion of the glass plate; a plurality of supporting members configured to support the lower ring mold; an upper mold to be disposed above the glass plate and having a downwardly convex forming surface configured to be pressed against the glass plate supported by the lower ring mold; a lower heater configured to heat the lower ring mold; and a spacer attached to the lower ring mold, the spacer configured to control a gap between the upper mold and the lower ring mold.

Abstract: The present invention relates to glass for vehicles including a glass plate; an information transmitting/receiving area, defined in the glass, via which a device mounted in a vehicle transmits or receives information; and a film that heats the information transmitting/receiving area, the film being attached to an area overlapping the information transmitting/receiving area in an interior side of the glass plate in a vehicle in a planar view; wherein the film includes a substrate, a heating element formed on the substrate, and a busbar connected to the heating element; the film has a heating zone divided into two or more heating areas; and the two or more of the heating areas share at least one busbar and are connected in series.

Abstract: To provide resin compositions excellent in electrical conductivity and flexibility. A resin composition comprising a fluororesin and a carbon nanostructure, wherein the carbon nanostructure includes a plurality of carbon nanotubes that are branched and share a common wall with each other.

Abstract: A windshield for vehicle includes a glass plate with a terminal including a first glass plate, a conductor made of a material containing silver and glass frit and including a terminal joint portion, and a terminal joined to the terminal joint portion of the conductor through lead-free solder, in which the glass plate with the terminal further includes an inorganic thin film between the first glass plate and the terminal joint portion, the inorganic thin film including at least one metal compound layer, having an overall thickness of 1,000 nm or smaller, and having a single-layer structure or a laminated structure, and at least an outermost surface of the inorganic thin film having an insulating property.

Abstract: A laminated glass includes a first glass plate, a second glass plate, and an interlayer disposed between the first glass plate and the second glass plate to bond the first glass plate and the second glass plate; the laminated glass partly having a first area configured to be used by a head-up display; the first glass plate having a 4th surface disposed on an opposite side of the interlayer, and a 3rd surface facing the interlayer; the second glass plate having a 2nd surface facing the interlayer and a 1st surface disposed on an opposite side of the interlayer; the first area having a P-polarized light reflective layer disposed on the 4th surface and a light-absorbing layer disposed at a position closer to the 1st surface than the P-polarized light reflective layer; the laminated glass being configured such that the formula of A?85% is satisfied wherein the total of a visible light transmittance of the P-polarized light reflective layer and a visible light transmittance of the light-absorbing layer is Tv %, th

Abstract: To provide a polymer which can provide a water- and oil-proof paper with excellent water and oil resistance. A polymer comprising the following units a, and at least the following units b among the following units b and the following units c, wherein the ratio of units a to all the units in the polymer is from 28 to 70 mol %, the total ratio of units b and units c to all the units in the polymer is from 30 to 72 mol %, and the ratio of units b to the sum of units b and units c is at least 45 mol %: units a: units represented by —(CH2—CHRf)— (wherein Rf is a C1-8 perfluoroalkyl group), units b: units represented by —(CH2—CH(OH))—, units c: units represented by —(CH2—CH(OC(?O)R))— (wherein R is a C1-4 alkyl group).

Abstract: A reflective mask blank includes a substrate; a multilayer reflective film that reflects EUV light; a protection film that protects the multilayer reflective film; and a phase shift film that shifts a phase of the EUV light, the substrate, the multilayer reflective film, the protection film, and the phase shift film being arranged in this order. The phase shift film contains at least one first element X1 selected from the first group consisting of ruthenium (Ru), iridium (Ir), platinum (Pt), palladium (Pd), and gold (Au), and at least one second element X2 selected from the second group consisting of oxygen (O), boron (B), carbon (C), and nitrogen (N). In the phase shift film, a chemical shift of a peak of 3d5/2 or a peak of 4f7/2 of the first element X1 observed by X-ray electron spectroscopy is less than 0.3 eV.

Abstract: A silica glass for a radio-frequency device has an OH group concentration being less than or equal to 300 wtppm; an FQ value being higher than or equal to 90,000 GHz at a frequency of higher than or equal to 25 GHz and lower than or equal to 30 GHz; and a slope being greater than or equal to 1,000 in a case where the FQ value is approximated as a linear function of the frequency in a frequency band of higher than or equal to 20 GHz and lower than or equal to 100 GHz.