The present invention is related to a thermo-shielding window coating composition having improved thermo-shielding and weathering resistant properties when applied to glass surfaces. The composition is made by first mixing an infrared absorbing pigment in amount of up to 5 wt. % with first dosage of an aqueous or alcoholic sulfonate group grafted fluoropolymer resin in amount of up to 10 wt. %, and water in amount of up to 10 wt. % to obtain a mixer, then dispersing the mixer by a disperser, and simultaneously adding second dosage of the sulfonate group grafted fluoropolymer resin in amount up to 90 wt. % to the above mixer until homogenous solution is obtained, wherein the weight % is calculated based on the total weight of the coating composition.

There is disclosed a tin-containing metal oxide nanoparticle, which has an index of dispersion degree less than 7 and a narrow particle size distribution which is defined as steepness ratio less than 3. There is disclosed dispersion, paint, shielding film and their glass products which comprise the said nanoparticles. Besides, there are also disclosed processes of making the tin-containing metal oxide nanoparticle and their dispersion. The tin-containing metal oxide nanoparticles and their dispersion disclosed herein may be applied on the window glass of houses, buildings, vehicles, ships, etc. There is provided an excellent function of infrared blocking with highly transparent, and to achieve sunlight controlling and thermal radiation controlling.

An infrared shielding film is an infrared shielding film including: an organic binder; and a plurality of tin-doped indium oxide particles (ITO particles) dispersed in the organic binder, in which the average center-to-center distance between adjacent particles of the ITO particles is in a range of 9 nm or more and 36 nm or less, the ratio of the average center-to-center distance between the adjacent particles to the average primary particle diameter of the ITO particles is in a range of 1.05 or more and 1.20 or less, and a roughness Ra of a film surface is in a range of 4 nm or more and 50 nm or less.

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).

The present invention is a windshield for an automobile on which an information acquisition device configured to acquire information from the outside of a vehicle by emitting and/or receiving light can be arranged. The windshield includes: a laminated glass including an information acquisition region that is opposite to the information acquisition device and through which the light passes; and an antifog sheet in which at least a sticky layer, a substrate film, and an antifog layer are layered in this order, the sticky layer being attached to at least a surface on a vehicle interior side of the information acquisition region. The laminated glass includes at least one glass plate in which surface concentrations of tin oxide in two principal surfaces are different, and a surface of the glass plate in which the concentration of tin oxide is higher faces the vehicle interior side.

A coating composition, coating glass and a method for preparation thereof, and a cooking appliance including the coating class are described. The coating composition includes a coating material and a heat conductive oxide nano powder that is 5 to 10 wt % with respect to a weight of the coating material. The coating composition provides an excellent infrared reflective function, a high transmittance, and an excellent cleaning performance.