Abstract: A tempered glass has a surface and a thickness. When a compressive stress of the tempered glass is represented by a positive number and a tensile stress thereof is represented by a negative number, the compressive stress at the surface is 400 MPa or more, a stress profile of the tempered glass obtained by measuring a stress in a depth direction from the surface has inflection points at each of which a second derivative of the stress profile becomes zero between the surface and a depth equal to half of the thickness, and the compressive stress value at a first inflection point at a position closest to the surface among the inflection points is 150 MPa or less. The compressive stress at a second inflection point at a position deeper than the first inflection point is 45 MPa or less.

Abstract: To provide a crystallized glass having high strength, a high transmittance, and high impact resistance. A crystallized glass according to the present invention includes a compression stress layer formed by ion exchange, in which the crystallized glass contains, as a composition, in mol %, from 50% to 80% of SiO2, from 0% to 4.8% of Al2O3, from 0.2% to 15% of P2O5, from 1.5% to 30% of Li2O, from 0% to 15% of Na2O, and from 1.5% to 10% of ZrO2, and the crystallized glass has a portion in which a Na ion concentration decreases from a surface side to an inner side of the glass.

Abstract: A glass article includes a glass composition including mole percent (mol %) to 70 mol % of SiO2, 5 mol % to 15 mol % of Al2O3, 5 mol % to 15 mol % of Na2O, greater than 0 mol % and equal to or less than 5 mol % of K2O, 5 mol % to 15 mol % of Li2O, and greater than 0 mol % and equal to or less than 5 mol % of MgO, and satisfying Relation (1) below: 0.1?Al2O3/(sum of Na2O,K2O, and Li2O)?0.7??(1), where Al2O3, Na2O, K2O, and Li2O in the Relation (1) denote contents (mol %) of Al2O3, Na2O, K2O, and Li2O, respectively, in the glass composition, and the glass article has a thickness of 100 micrometers (?m) or less.

Abstract: A tempered glass has a surface and a thickness, wherein a stress profile of the tempered glass includes a first peak at the surface, at which the compressive stress becomes a maximum, a first bottom at which the stress, which gradually reduces from the first peak in the depth direction, becomes a local minimum, a second peak at which the compressive stress, which gradually increases from the first bottom in the depth direction, becomes a local minimum, and a second bottom at which the tensile stress, which gradually reduces from the second peak in the depth direction, becomes a minimum. The compressive stress at the first peak is 500 MPa or more, the compressive stress at the second peak P2 is from 15 MPa to 250 MPa, and the depth of layer of the second peak is from 4% to 20% of the thickness.

Abstract: The present invention provides a tempered glass sheet having a compressive stress layer in a surface thereof, the tempered glass sheet including as a glass composition, in terms of mol %, 50% to 80% of SiO2, 8% to 25% of Al2O3, 0% to 10% of B2O3, 3% to 15% of Li2O, 3% to 21% of Na2O, 0% to 10% of K2O, 0% to 10% of MgO, 0% to 10% of ZnO, and 0% to 15% of P2O5.

Abstract: Provided is a tempered glass sheet that has a softening point lower than that of conventional lithium aluminosilicate glass, exhibits excellent thermal bending moldability, and is not easily broken when dropped. Also provided is a method for manufacturing the tempered glass sheet. The tempered glass sheet of the present invention is characterized in that the tempered glass sheet includes, as a glass composition in terms of mol %, from 45 to 70% of SiO2, from 9 to 25% of Al2O3, from 0 to 10% of B2O3, from 4 to 15% of Li2O, from 1 to 21% of Na2O, from 0 to 10% of K2O, from 0.03 to 10% of MgO, from 0 to 10% of ZnO, from 0 to 15% of P2O5, and from 0.001 to 0.30% of SnO2, and the tempered glass sheet satisfies [Li2O]+[Na2O]+[K2O]?15%, and ([Li2O]+[Na2O]+[K2O]+[ZnO])/[Al2O3]?1.1.

Abstract: The present invention provides a tempered glass sheet having a compressive stress layer in a surface thereof, the tempered glass sheet including as a glass composition, in terms of mol %, 50% to 80% of SiO2, 8% to 25% of Al2O3, 0% to 10% of B2O3, 3% to 15% of Li2O, 3% to 21% of Na2O, 0% to 10% of K2O, 0% to 10% of MgO, 0% to 10% of ZnO, and 0% to 15% of P2O5.

Abstract: A crystallized glass contains: from 58 to 70% of SiO2, from 15 to 30% of Al2O3, from 2 to 10% of Li2O, from 0 to 10% of Na2O, from 0 to 10% of K2O, from 0 to 15% of Na2O+K2O, from 0 to 15% of MgO+CaO+SiO+BaO+ZnO, from 0.1 to 6% of SnO2, from 0.5 to 6% of ZrO2, from 0 to 4% of TiO2, and from 0 to 6% of P2O5 in mass %, in which the crystallized glass has a degree of crystallinity of 1 to 95%, and an average visible light transmittance of 50% or greater at a thickness of 0.8 mm and a wavelength of 380 to 780 nm, and a compression stress layer is formed on a surface.

Abstract: A glass of the present invention includes as a glass composition, in terms of mass %, 50% to 75% of SiO2, 1% to 30% of Al2O3, 0% to 25% of B2O3, 0% to 10% of Li2O, 0.01% to 20% of Na2O, 0% to 10% of K2O, 0.0001% to 0.1% of Fe2O3, 0.00001% to 0.01% of Cr, 0.00001% to 0.01% of Ni, and 0.0001% to 0.5% of TiO2.

Abstract: A support glass substrate of the present invention is a support glass substrate for supporting a substrate to be processed, the support glass substrate including lithium aluminosilicate-based glass, having a content of Li2O of from 0.02 mol % to 25 mol % in a glass composition, and having an average linear thermal expansion coefficient within a temperature range of from 30° C. to 380° C. of 38×10?7/° C. or more and 160×10?7/° C. or less.

Abstract: A cover glass of the present invention is characterized by including in a glass composition at least three or more components selected from SiO2, Al2O3, B2O3, Li2O, Na2O, K2O, MgO, CaO, BaO, TiC2, Y2O3, ZrO2, and P2O5, and having an X value of 7, 400 or more calculated by the following equation. The X value is a value calculated by the equation X=61.1×[SiO2]+174.3×[Al2O3]+11.3×[B2O3]+124.7×[Li2O]?5.2×[Na2O]+226.7×[K2O]+139.4×[MgO]+117.5×[CaO]+89.6×[BaO]+191.8×[TiO2]+226.7×[Y2O3]+157.9×[ZrO2]?42.2×[P2O5].

Abstract: The present invention provides a tempered glass sheet having a compressive stress layer in a surface thereof, the tempered glass sheet including as a glass composition, in terms of mol %, 50% to 80% of SiO2, 8% to 25% of Al2O3, 0% to 10% of B2O3, 3% to 15% of Li2O, 3% to 21% of Na2O, 0% to 10% of K2O, 0% to 10% of MgO, 0% to 10% of ZnO, and 0% to 15% of P2O5.

Abstract: A tempered glass has a surface and a thickness, wherein a stress profile of the tempered glass includes a first peak at the surface, at which the compressive stress becomes a maximum, a first bottom at which the stress, which gradually reduces from the first peak in the depth direction, becomes a local minimum, a second peak at which the compressive stress, which gradually increases from the first bottom in the depth direction, becomes a local minimum, and a second bottom at which the tensile stress, which gradually reduces from the second peak in the depth direction, becomes a minimum. The compressive stress at the first peak is 500 MPa or more, the compressive stress at the second peak P2 is from 15 MPa to 250 MPa, and the depth of layer of the second peak is from 4% to 20% of the thickness.

Abstract: A tempered glass has a surface and a thickness. When a compressive stress of the tempered glass is represented by a positive number and a tensile stress thereof is represented by a negative number, the compressive stress at the surface is 400 MPa or more, a stress profile of the tempered glass obtained by measuring a stress in a depth direction from the surface has inflection points at each of which a second derivative of the stress profile becomes zero between the surface and a depth equal to half of the thickness, and the compressive stress value at a first inflection point at a position closest to the surface among the inflection points is 150 MPa or less. The compressive stress at a second inflection point at a position deeper than the first inflection point is 45 MPa or less.

Abstract: The present invention provides a tempered glass including, in a surface thereof, a compressive stress layer obtained through ion exchange, wherein the tempered glass includes as a composition, in terms of mol %, 50% to 80% of SiO2, 0% to 20% of Al2O3, 0% to 10% of B2O3, 0% to 15% of P2O5, 0% to 35% of Li2O, 0% to 12% of Na2O, and 0% to 7% of K2O.

Abstract: A cover glass of the present invention is characterized by including in a glass composition at least three or more components selected from SiO2, Al2O3, B2O3, Li2O, Na2O, K2O, MgO, CaO, BaO, TiO2, Y2O3, ZrO2, and P2O3, and having an X value of 7,400 or more calculated by the following equation. The X value is a value calculated by the equation X=61.1×[SiO2]+174.3×[Al2O3]+11.3×[B2O3]+124.7×[Li2O]?5.2×[Na2O]+2 26.7×[K2O]+139.4×[MgO]+117.5×[CaO]+89.6×[BaO]+191.8×[TiO2]+226. 7×[Y2O3]+157.9×[ZrO2]?42.2×[P2O5].

Abstract: A nebulizer system includes a bottle that has a bottle mouth on top thereof and stores liquid therein, a heater device that is connectable to the bottle mouth, and a nebulizer adapter that is connectable to the heater device. The bottle includes a dip tube that is dipped into the liquid stored therein. An upper end portion of the dip tube is disposed inside a circumferential wall of the bottle mouth with a clearance communicating between an interior and an exterior of the bottle via the bottle mouth. The nebulizer adapter includes a nozzle member that has an orifice for injecting gas, and an aerosol-forming member in a corresponding position with the orifice, the aerosol-forming member sucking up the liquid in the bottle via the dip tube and heater device by a stream of gas injected from the orifice, and generating fine aerosol from the sucked liquid.

Abstract: Provided is a positive electrode material for a lithium ion secondary battery, including a crystallized glass powder including an olivine-type crystal represented by General Formula LiMxFe1-xPO4 (0?x<1, M represents at least one kind selected from Nb, Ti, V, Cr, Mn, Co, and Ni), in which the crystallized glass powder has an amorphous layer in its surface.

Abstract: The present invention relates to an aqueous emulsion comprising a dispersant of a modified polyvinyl alcohol with an ethylene unit content of 2 to 9 mol % and a degree of hydrolysis of at least 95 mol %, a dispersoid of a polymer of an ethylenically unsaturated monomer, and a ratio (.eta.2 rpm/.eta.20 rpm) of Brookfield viscosity at 30.degree. C., 2 rpm (.eta.2 rpm) as against Brookfield viscosity at 30.degree. C., 20 rpm (.eta.20 rpm) being 1 to 1.8 when the latter viscosity (.eta.20 rpm) is adjusted to 5,000 to 10,000 mPa.multidot.S.The aqueous emulsion according to the present invention is excellent in structural viscosity (flowability, high speed application performance), provides coated layers with high water resistance and low-temperature stability, and can be suitably used extensively as an adhesive for paper, wood and plastics, as a binder for impregnated paper and non-woven products, as an additive for mortar, as a paint, and in paper and fiber processings.

Abstract: Process for producing polyvinyl ester having a high degree of polymerization and an intrinsic viscosity of from 15 dl g.sup.-1 to 3.2 dl g.sup.-1, and a polyvinyl ester obtained thereby. The process comprises subjecting a vinyl ester monomer to emulsion polymerization using nonionic emulsifiers nonionic-anionic emulsifiers, or anionic emulsifiers and a redox initiator at a temperature of -60.degree. to 15.degree. C.