Specifically identified products are produced using powder formed from particles of a naturally occurring organic oxide mineral with substantially no free silica, preferably nepheline syenite, where the powder is essentially dry with a moisture content of less than 0.8% and has a controlled maximum particle size with 99.9% of the particles of the powder having a particle size of less than 10 microns defined as fine grain ultra-fine powder, which fine grain ultra-fine powder is preferably less than 6 microns, and where the fine grain ultra-fine powder comprises 3-25% by weight of the identified product.

The present invention relates to an antireflection film which includes a hard coating layer and a low refractive index layer formed on the hard coating layer, wherein a roughness skewness (Rsk) of the concavo-convex shape of the surface is greater than 0.5 and less than 5, and a slope angle of the concavo-convex shape of the surface is greater than 0.01 degree and less than 0.2 degree, and a display device comprising the antireflection film.

The present invention relates to laser-markable polymers and coatings which are distinguished by the fact that they comprise tin/antimony oxide-coated spherical TiO.sub.2 particles of defined particle size as laser additive.

The present disclosure provides a high refractive index acrylic formulation embedded with sub-10 nm metal oxide nanocrystals. The formulation is ideal for high refractive index, high transparency coating for a variety of optical applications including OLED lighting.

Provided is decorative film capable of keeping the brightness and that hardly changes in color during the continuous use. Decorative film is disposed on the surface of a resin base located in a path of a beam of a radar device. The decorative film includes: composite particles, each including a silver particle made of silver and compound including nickel and oxygen, the compound adhering to the silver particle so as to partially surround the surface of the silver particle; and light-transmissive binder resin to bind the composite particles dispersed in the decorative film. Content of the nickel is in a range of 0.5 to 30.0 mass % relative to the silver.

Hollow silica-based particles having cavities inside the outer shell having a low refractive index. The method of producing the silica-based particles comprises the following steps (a) and (b): (a) a step in which, when an aqueous silicate solution and/or an acidic silicic acid solution and an aqueous solution of an alkali-soluble inorganic compound are simultaneously added in an alkali aqueous solution to prepare a dispersion liquid of composite oxide particles, an electrolytic salt is added at the molar ratio of a mole number of the electrolytic salt (M.sub.E) versus that of SiO.sub.2 (M.sub.S) [(M.sub.E)/(M.sub.S)] in the range from 0.1 to 10, and (b) a step of furthermore adding an electrolytic salt, if necessary, to the dispersion liquid of composite oxide particles and then removing at least a portion of elements constituting the composite oxide other than silicon by adding an acid to prepare a dispersion liquid of silica-based particles.

A pre-lithiated film and a preparation method therefor and an application thereof. The pre-lithiated film comprises: a 1 ?m-50 ?m base film and a 0.02 ?m-100 ?m pre-lithiated coating coated on the base film; the pre-lithiated coating includes: 1 wt %-99.99 wt % of a pre-lithiated material, 0 wt %-98.99 wt % of a coating material, 0.01 wt %-10 wt % of a binder, 0 wt %-10 wt % of a conductive additive material, 0 wt %-2 wt % of a dispersing agent and 0 wt %-2 wt % of an aid. The pre-lithiated material is a material that can produce an electrochemical reaction to release lithium ions under voltage control. The pre-lithiated material specifically includes: Li.sub.xM1.sub.yA.sub.z, Li.sub.xM2.sub.y(PO.sub.4).sub.z, Li.sub.xM2.sub.y(SiO.sub.4).sub.z, Li.sub.2S, and Li.sub.xM1.sub.yS.sub.z, wherein x, y and z are integers or non-integers and satisfy the balance of electrovalence of a chemical formula; M1 is one or a combination of a metallic element, a transition metal element, a rare earth element, an alkali metal, an IVA group element; M.sub.2 is one or a combination of a metal element, a transition metal element, a rare earth element, an alkali metal, and an IVA group element; and A is one or a combination of O, F, Cl, S and N elements.

The present invention relates to a coating composition for a flexible plastic film, and more specifically to a coating composition for producing a flexible plastic film having excellent flexibility while exhibiting high hardness. According to the present invention, the coating composition exhibits flexibility, bending property, high hardness, scratch resistance and high transparency, and hardly has a risk of damaging the film even in repetitive, continuous bending or long-time folding state, and thereby can be usefully applied to flexible mobile devices, display devices, front face and display unit of various instrument panels, and the like.

A coating agent aqueous dispersion comprising, as solid matters, 20 to 80 wt. %, preferably 29 to 70 wt. %, of PTFE, 10 to 50 wt. %, preferably 14 to 36 wt. %, of acrylic resin, and 10 to 50 wt. %, preferably 20 to 45 wt. %, of ethylene-vinyl acetate copolymer resin. When the coating agent aqueous dispersion of the present invention is used as a surface-treating agent for rubber-made sealing materials, etc., a reduction in stickiness to the sealing mate material and the prevention of blooming on the surface of the rubber material are obtained. Combined with the flexibility, the adhesion balance between the rubber material and the coating agent is excellent.

There is a problem that when a silver powder sintering paste that is substantially free from resin is used, an organic solvent used as a dispersion medium bleeds, which results in contamination and wire bonding defects. In order to solve the problem, provided is a metal powder sintering paste that contains, as a principal component, silver particles having an average particle diameter (a median diameter) of 0.3 m to 5 m and further contains an anionic surfactant but is substantially free from resin.