The present invention relates to a method for forming a surface relief microstructure, especially an optically variable image (an optically variable device) on a transparent or translucent substrate and a product obtainable using the method. A further aspect of the invention is the use for the prevention of counterfeit or reproduction of a document of value and a method of forming a coating showing an angle dependent color change.

A method of coating with an aqueous coating composition having a pH <5 of silica nanoparticles having a, average particle diameter of 40 nm, silica nanoparticles having an average particle diameter of 50 nm, and a tetraalkoxysilane. The resulting coatings are substantially uniform in thickness, durably adheres to the substrate, and provides antireflection and or hydrophilic surface properties to the substrate.

Articles are prepared to have a substrate and a silver-containing composition on either or both supporting sides of the substrate. The silver-containing composition can comprise either reducible silver ions or silver nanoparticles, complexed with a reactive polymer. The reactive polymer comprises: (a) greater than 1 mol % of recurring units comprising sulfonic acid or sulfonate groups, (b) at least 5 mol % of recurring units comprising a pendant group capable of crosslinking via [2+2] photocycloaddition, and optionally (c) at least 1 mol % of recurring units comprising a pendant amide, hydroxyl, lactam, phosphonic acid, or carboxylic acid group. Some other articles have a water-insoluble complex of reacted (crosslinked) polymer with reducible silver ions or silver nanoparticles on either or both supportive sides of the substrate. Such reacted polymer is derived from the noted reactive polymer.

A fluoropolymer coating composition comprises: fluorinated homopolymer particles dispersed in water, fluorinated copolymer particles dispersed in water, non-fluorinated polymer particles dispersed in water; and at least one aziridine compound comprising at least two aziridine groups. The composition is especially useful in low friction coating for telecommunication cables.

A transparent layered film is produced by forming an anti-water-mark layer on a first side of a transparent resin layer and forming an uneven structure on a surface of the anti-water-mark layer, wherein the anti-water-mark layer comprises a cured product of a curable composition containing a curable resin, a thermoplastic resin, and a metal oxide particle having an average primary particle size of 1 to 100 nm, and the uneven structure has a roughness average Ra of not less than 0.005 and less than 0.03 m, a mean spacing of profile irregularities Sm of 50 to 300 m, an average absolute slope a of less than 0.1, and a ten-point average roughness Rz of less than 0.2 m. Lamination of the film on a glass-containing upper electrode of a touch screen display prevents scattering of glass fragments produced by breakage of the upper electrode, occurrence of water marks, and sparkling on a high-definition display provided with the film.

Near-infrared absorbing particles that includes a cesium tungstate is provided. In the near-infrared absorbing particles, the cesium tungstate has a pseudo hexagonal crystal structure modulated to one or more crystal structures selected from orthorhombic crystal, rhombohedral crystal, and cubic crystal. The cesium tungstate is represented by a general formula Cs.sub.xW.sub.yO.sub.z, and has a composition within a region surrounded by four straight lines of x=0.6y, z=2.5y, y=5x, and Cs.sub.2O:WO.sub.3=m:n (m and n are integers) in a ternary composition diagram with Cs, W, and O at each vertex.

The present application provides a separator, a method for preparing the same, a secondary battery and an electrical device related thereto. The separator includes a porous substrate and a coating layer disposed on one or more surfaces of the porous substrate, wherein the coating layer includes nanocellulose, and the porous substrate has a surface tension of 1 mN/m, the coating layer has a surface tension of 2 mN/m, and the separator satisfies 1/20.68. The separator provided in the present application has the characteristics of excellent heat resistance and high bonding strength, thus the secondary battery using the separator can have the combined characteristics of high energy density, high thermal safety performance, and long service life.

The invention relates to a coating composition for making a porous inorganic oxide coating layer on a substrate, the composition comprising an inorganic oxide precursor as binder, a solvent, and a synthetic polyampholyte as pore forming agent. The size of the pores in the coating can be advantageously controlled by the comonomer composition of the polyampholyte, and/or by selecting conditions like temperature, pH, salt concentration, and solvent composition when making the composition. The invention also relates to a method of making such coating composition, to a process of applying a coating on a substrate using such composition, and to such coated substrate showing a specific combination of optical and mechanical properties.

This invention relates to regenerable antimicrobial coatings with long-lasting efficacy for use in medical applications including implants, medical instruments or devices, and hospital equipment. The same coatings would also have broad utility in the consumer, industrial, and institutional markets. The coating technology would be based on sequestration of hydrogen peroxide (HP) by zinc oxide binders incorporated into the coatings.

A highly thermally conductive printed circuit board prevents electrochemical migration by inhibiting elution of copper ions. The printed circuit board is a metal-base printed circuit board including a metal base plate having an insulating resin layer and a copper foil layer stacked thereon in this order. In the printed circuit board, the insulating resin layer contains a first inorganic filler made of inorganic particles having particle diameters of 0.1 nm to 600 nm with an average particle diameter (D.sub.50) of 1 nm to 300 nm, and a second inorganic filler made of inorganic particles having particle diameters of 100 nm to 100 m with an average particle diameter (D.sub.50) of 500 nm to 20 m, and the first inorganic filler and the second inorganic filler are uniformly dispersed in the insulating resin layer.