An infrared-shielding nanoparticle dispersion has a property whereby visible light is adequately transmitted, and light in the near-infrared region is adequately shielded. The infrared-shielding nanoparticles include a plural aggregate of electroconductive particles composed of a tungsten oxide expressed by the general formula WyOz (where W is tungsten, O is oxygen, and 2.2≤z/y≤2.999), and/or a composite tungsten oxide expressed by the general formula MxWyOz (where M is one or more elements selected from H, alkali metals, alkaline-earth metals, rare earth elements, Mg, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Tl, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, Te, Ti, Nb, V, Mo, Ta, Re, Be, Hf, Os, Bi, and I; W is tungsten; O is oxygen; 0.001≤x/y≤1.1; and 2.2≤z/y≤3.0).

An optical fibre, for use in the field of distributed measurement of temperature or deformation by optical reflectometry in the frequency domain using the Rayleigh backscattered signal in the fibre, includes a core doped with nanoparticles for example formed from gold particles covered with zirconium oxide, and can be subjected to high temperatures during the measurement. A method for producing the optical fibre includes a step of heat treatment during which the optical fibre is subjected, for a duration of at least one hour, to a heat treatment temperature higher than a maximum temperature to which it will be subjected during a measurement.

A glass article includes a glass substrate, a colored film formed on one of main surfaces of the glass substrate, an uncoated portion where no colored film is formed which is present in part of the one of main surfaces or on an edge face of the glass substrate, a boundary between the colored film and the uncoated portion, and a film thickness varying portion where the colored film gradually tapers in thickness toward the boundary. The uncoated portion is visible in the glass article used as a window, the glass substrate has an absorbance in the wavelength range of 380 nm to 780 nm of 0.10 or lower per mm of thickness, and the glass article has a portion blue in color, gray in color, or pink in color where the colored film is formed.

A printable ink mixture may include: a medium, orthophosphoric acid, at least one metal oxide, and at least one pigment. A method for producing a color print on a glass or ceramic surface may include: producing an ink mixture including a medium, orthophosphoric acid, at least one metal oxide, and at least one pigment, applying the ink mixture to the glass or ceramic surface, removing the medium from the ink mixture, and baking the ink mixture on the glass or ceramic surface to produce the color print.

When on flat glass elements an anti-corrosion agent and a separation agent, containing a powdery anti-corrosion agent and a powdery separation agent, is applied with the anti-corrosion agent and the separation agent being jointly applied on at least one side of the flat glass elements, the partial quantities of the powdery separation agent and the powdery anti-corrosion agent can be dosed according to requirement without causing an excess of separation agent or a shortage of anti-corrosion agent by holding ready and dosing the said anti-corrosion agent and separation agent independently from each other and by blending them together only after dosing.

A glass coating composition may include a glass composition and a nanopowder. The nanopowder may include Zinc Oxide (ZnO) and may be added to a glass composition in 1 to 10 weight (wt %). The glass composition may include 20 to 40 wt % of phosphorus pentoxide (P.sub.2O.sub.5), a total of 15 to 30 wt % of aluminum oxide (Al.sub.2O.sub.3) and zirconium dioxide (ZrO.sub.2), a total of 10 to 30 wt % of sodium oxide (Na.sub.2O) and potassium oxide (K.sub.2O), 10 to 25 wt % of boron trioxide (B.sub.2O.sub.3), and 10 to 15 wt % of zinc oxide (ZnO).

A process for manufacturing a laminated glazing that includes at least a first glass sheet and a second glass sheet, includes printing a face of the first glass sheet intended to be oriented toward the second glass sheet with a liquid enamel which is dried at a temperature not exceeding 400° C., then bending the first and second glass sheets together in contact with one another in their relative position of destination in the laminated glazing, by heating at a softening temperature of the glass, wherein the liquid enamel is an aqueous silicate paint including a refractory powder of pigments and a silicate binder powder, in the absence of glass frit, and wherein a weight ratio of pigments to silicates is greater than 1.

Coating liquid used for forming an ultraviolet absorption coating on a surface of an object such as glass and the like, ultraviolet absorption glass arranged with the ultraviolet absorption coating formed by the coating liquid, and a method for preparing the ultraviolet absorption glass. The coating liquid used for forming the ultraviolet absorption coating, the ultraviolet absorption glass and the method for forming the ultraviolet absorption glass, by storing and releasing electrons excited by ultraviolet lights in an ultraviolet absorber, reduce the excited electrons that are gradually accumulated during a process in which the ultraviolet absorber absorbs the ultraviolet lights, thus protecting the ultraviolet absorber and a silicon dioxide matrix, preventing the ultraviolet absorption glass from discoloring or devitrifying, ensuring weather resistance of the ultraviolet absorption coating and ensuring color consistency of the ultraviolet absorption glass.

Provided are a far infrared reflective film including a base material and a far infrared reflective layer including a binder and flat conductive particles, in which a value obtained by dividing an average particle diameter of the flat conductive particles by an average thickness of the flat conductive particles is 20 or more, a thickness y nm of the far infrared reflective layer is 3 times or more the average thickness of the flat conductive particles, a volume fraction x of the flat conductive particles in the far infrared reflective layer is 0.4 or more, and a product x×y of the volume fraction x and the thickness y satisfies Expression A, a heat shield film including the far infrared reflective film, and a heat shield glass including the far infrared reflective film. $\begin{array}{cc}x\times y\le 0.183\times \frac{\lambda }{k}& \mathrm{Expression}A\end{array}$

A process for depositing a coating on a glass substrate includes co-sputtered simultaneously by a plasma, in one and the same chamber of the vacuum deposition device, a first constituent made of a material consisting of an oxide, a nitride or an oxynitride of a first element and a second constituent consisting of the metallic form of a second element. The process also includes introducing a hydride, a halide or an organic compound of a third element, different than the first element, into the plasma, to recover the substrate covered with the coating comprising the first, second and third elements at the outlet of the device. The coating consists of metal nanoparticles of the second element dispersed in an inorganic matrix of the first and third elements. The coating displays a plasmon absorption peak in the visible region.