Abstract: A method for producing a sulfide solid electrolyte includes: heating and melting a sulfide solid electrolyte raw material containing at least one element of Sn, Si, and Sb in a sulfur element-containing gas atmosphere; and cooling and solidifying an obtained melt to produce a sulfide solid electrolyte containing at least one element of Sn, Si, and Sb. By the heating and melting, a valence of the element contained in the sulfide solid electrolyte raw material is increased.

Abstract: To provide a fluorinated polymer composition capable of forming a crosslinked rubber article excellent in the mold release property, a method for producing a fluorinated polymer composition, and a crosslinked rubber article. The fluorinated polymer composition of the present invention is a fluorinated polymer composition comprising a fluorinated polymer and a crosslinking agent, wherein the optimum vulcanization time Te obtained in accordance with the formula A (Te=tC(5)+10×(tC(35)?tC(5))) is 2.3 minutes or more. In the formula A, tC(5) is the vulcanization time at which the torque reaches 5%, and tC(35) is the vulcanization time at which the torque reaches 35%, in a torque-vulcanization time curve determined in accordance with JIS K6296-1 using the fluorinated polymer composition at a test temperature of 150 °C, where the minimum torque value is defined as 0% and the maximum torque value is defined as 100%.

Abstract: The object of the present invention is to provide a fluorinated polymer having a high decomposition temperature and being excellent in the roll windability, and to provide a method for producing a fluorinated polymer having a high decomposition temperature and being excellent in the roll windability. Another object of the present invention is to provide a sheet comprising the fluorinated polymer. The fluorinated polymer of the present invention satisfies requirement 1 and requirement 2. Requirement 1: the 2% weight loss temperature of the fluorinated polymer is 300 °C or higher and less than 420 °C. Requirement 2: the difference between the 5% weight loss temperature of the fluorinated polymer and the 2% weight loss temperature of the fluorinated polymer is 20 °C or more.

Abstract: To provide a method for producing a liquid composition containing a fluorinated polymer with a small particle size, and being excellent in production consistency. From a mixture obtained by subjecting a fluorinated polymer F having a group convertible to an ion exchange group to a hydrolysis treatment and conversion to acid form to convert the group convertible to an ion exchange group into an acid-form ion exchange group in a first solvent, a solid composition containing a fluorinated polymer H having an ion exchange group and the first solvent is separated; a treatment to remove the first solvent from the solid composition is conducted to obtain a composition having a content of the first solvent relative to the total mass of the fluorinated polymer H of 2 to 200 mass %; and the composition is mixed with a second solvent containing water and an alcohol to obtain a liquid composition containing the fluorinated polymer H having an ion exchange group.

Abstract: A compound having a chain group and a reactive silyl group, in which the compound has a number average molecular weight of from 1,600 to 10,000, and a proportion of a component having a molecular weight of 1,500 or less is 5 mass % or less, a composition and a surface treatment agent including the compound, an article having a surface treatment layer formed by a surface treatment using the surface treatment agent, and a method of producing the same are provided.

Abstract: A silica glass substrate has a root mean square height Rq of 1 nm or more and 300 nm or less on a substrate surface, and a thickness of 10 ?m or more and 2 mm or less. A glass substrate has a root mean square height Rq of 1 nm or more and 300 nm or less on a substrate surface, and a thickness of 10 ?m or more and 2 mm or less, and contains 60 mol % or more and less than 100 mol % of SiO2 as represented by mol % based on oxides.

Abstract: Provided are a fluorine-containing copolymer composition that, when combined with a crosslinking agent, can produce a crosslinkable composition capable of forming crosslinked rubber articles less likely to adhere to contacted objects, and a crosslinked rubber article less likely to adhere to contacted objects. The fluorine-containing copolymer composition contains: a fluorine-containing copolymer (A) including units based on tetrafluoroethylene and units based on perfluoro (alkyl vinyl ether); and a fluorine-containing copolymer (B) being different from the fluorine-containing copolymer (A) and including units based on a monomer having at least one functional group selected from the group consisting of a carboxy group and a group represented by the formula (X), units based on tetrafluoroethylene and units based on perfluoro (alkyl vinyl ether), wherein the fluorine-containing copolymer composition has a predetermined storage modulus. *—CO—O—CO—*??(X) In the formula (X), * represents a bonding position.

Abstract: Provided are a fluorine-containing copolymer composition capable of forming a crosslinked rubber article that exhibits reduced weight loss after a lapse of predetermined time during long-term use under plasma irradiation conditions, and a crosslinked rubber article with reduced weight loss. The fluorine-containing copolymer composition contains: a fluorine-containing copolymer (A) including units based on tetrafluoroethylene and units based on perfluoro (alkyl vinyl ether); a fluorine-containing copolymer (B), different from the fluorine-containing copolymer (A), including units based on a monomer having at least one functional group selected from the group consisting of a carboxy group and a group represented by the formula (X), units based on tetrafluoroethylene and units based on perfluoro (alkyl vinyl ether), and having a particle size D90 of 4.0 ?m or smaller; and a crosslinking agent.

Abstract: To provide a laminated glass having an antiglare surface, which can suppress reflection of the interior furnishings even when the window glass has low visible light transmittance and a reflection image on the interior side is easily seen, and through which the outdoor scenery can be clearly and sufficiently recognized. According to an embodiment of the present invention, a laminated glass 100 has an outer sheet 10, an interlayer film 20 and an inner sheet 30 in this order, wherein the inner sheet 30 has an antiglare surface 31 generated by an antiglare treatment on the interior side, and wherein the antiglare surface 31 has an arithmetic mean roughness Ra of 90 nm or more and 170 nm or less.

Abstract: A reflective mask blank includes a substrate, a multilayer reflective film that reflects EUV light, a protective film that protects the multilayer reflective film, and an absorbing film that absorbs EUV light, in that order. The protective film includes a Ru compound, and the Ru compound includes Ru, Si, and O.

Abstract: Provided are a method for producing a composition for formation of crosslinked rubber articles capable of suppressing cracking under high-temperature and high-compression conditions and showing excellent plasma resistance and a crosslinked rubber article with excellent plasma resistance.

Abstract: To provide a method for producing a solid composition, by which it is possible to produce a solid composition that contains substantially no emulsifier and that is excellent in crosslinking rate.

Abstract: A method for producing laminated glass for automobile windows includes: heating and bend forming two glass plates; and bonding together the two bend-formed glass plates via an interlayer film, wherein before the heating and bend forming of the two glass plates, at least one glass plate of the two glass plates that are flat, is conveyed by a conveying unit while either a conveying unit-facing surface of the at least one glass plate or a non-facing surface of the at least one glass plate that is opposite to the conveying unit-facing surface is scratched by the conveying unit, and in the bonding together of the two bend-formed glass plates via the interlayer film, the scratched surface is disposed such that the scratched surface is situated on a vehicle-interior side upon the laminated glass for automobile windows being attached to an automobile.

Abstract: A window glass for vehicle according to an aspect of the present disclosure includes: a fixed glass with an opening formed therein, a movable glass configured to be fitted into the opening of the fixed glass; and a pair of support members and configured to vertically sandwich the movable glass therebetween and slidably support the movable glass relative to the fixed glass. Grooves are provided in the pair of support members; the pair of support members are formed of resin; at least one of the pair of support members is inclined in such a manner that a bottom surface of the groove of that support member gets closer to the other support member on a vehicle rear side; and a ratio of a height of the inclination to an overall length of the support member is not lower than 0.03% and not higher than 1.0%.

Abstract: The object of the present invention is to provide a solid material capable of forming a molded product excellent in surface properties, a composition comprising the solid material, a molded product obtained by molding the solid material, and a molded product obtained by molding the composition. The solid material of the present invention is a solid material comprising: a copolymer having a unit based on tetrafluoroethylene, a unit based on ethylene, and a unit based on a specific compound selected from the group consisting of a compound represented by formula (1) CX1?CX2(CF2)mX3 and a compound represented by formula (2) CF2?CF—O—(CF2)nF; the specific compound; and a solvent that is a compound different from the specific compound; wherein the ratio of the content of the specific compound to the total content of the solvent and the specific compound is 50.0 mass % or less.

Abstract: To provide a method for producing a dry ion exchange membrane with which a water electrolyzer with suppressed leakage can be produced. The dry ion exchange membrane production method of the present invention comprises drying a wet ion exchange membrane that contains a fluorinated polymer having ion exchange groups wetted with a liquid medium to remove the liquid medium thereby to obtain a dry ion exchange membrane; wherein the drying of the wet ion exchange membrane is initiated from a state where the amount of the liquid medium attached to the surface of the wet ion exchange membrane is 40 g/m2 or more and 600 g/m2 or less.

Abstract: The object of the present invention is to provide a solid material excellent in grindability, and to provide a composition comprising the solid material, a molded product obtained by molding the solid material, and a molded product obtained by molding the composition.

Abstract: The present invention relates to an optical waveguide substrate containing a cladding layer A and a cladding layer B bonded to the cladding layer A, in which the cladding layer A contains a glass having a cladding region A and a core region having a refractive index higher than that of the cladding region A, the glass constituting the cladding region A and the glass constituting the core region satisfy a specific relation regarding the content ratio of Na2O and Ag2O, the core region is located in a region including a part of a surface of the cladding layer A on the cladding layer B side, and the cladding layer B contains a cladding region B having a refractive index lower than that of the core region of the cladding layer A.

Abstract: An optical filter includes, in this order, a first dielectric multilayer film; an ytterbium-containing glass substrate; and a second dielectric multilayer film, and the optical filter satisfies the following spectral characteristics (I-i) to (I-v), and an average reflectance RI[930-960(5deg)AVE] at wavelengths of from 930 to 960 nm is 60% or more. (I-i) An average transmittance at wavelengths of from 450 to 800 nm at an angle of incidence of 0 degrees is 90% or more. (I-ii) A maximum transmittance at wavelengths of from 830 to 860 nm at an angle of incidence of 0 degrees is 80% or more. (I-iii) A maximum transmittance at wavelengths of from 830 to 860 nm at an angle of incidence of 35 degrees is 80% or more. (I-iv) A minimum transmittance at wavelengths of from 930 to 960 nm at an angle of incidence of 0 degrees is 0.2% or less. (I-v) A minimum transmittance at wavelengths of from 930 to 960 nm at an angle of incidence of 35 degrees is 0.2% or less.

Abstract: An optical filter, includes: a substrate, a dielectric multilayer film 1 laid on or above one major surface of the substrate, and a dielectric multilayer film 2 laid on or above the other major surface of the substrate, in which the substrate includes a near infrared ray absorbing glass and a resin film, the resin film includes a resin and a pigment (N1R1), and the optical filter satisfies all of spectral characteristics (i-1) to (i-7).