Provided is an anti-fingerprint coating compound including a top portion, a linker, and an end portion, in which the top portion includes two or three perfluoropolyether moieties, the linker linking the top portion to the end portion is a trivalent or tetravalent linking group, and the end portion includes a siloxane moiety.

A film for absorbing visible light, including: a plurality of silica nanoparticles, wherein a surface of at least a part of the plurality of silica nanoparticles is functionalized with a plurality of pigment molecules of a Melanin type compound.

Disclosed is a transparent self-assembling polymer clay nanocomposite coating that is useful in food, drink and electronic packaging as a gas barrier and on textiles and clothing as a flame retardant coating. The coating includes two main components a water dispersible polymer and a sheet like nanoparticle. The coatings may be applied to any substrate. The coatings are applied sequentially with polymer being applied first followed by the nanoparticles. This sequence results in the self-assembly of a highly ordered nanocomposite film that exhibits high barrier properties and flame retardancy. The desired level of gas barrier or flame retardancy desired can be adjusted by the number of bilayers applied.

Coatable compositions for formation of ink-receptive layers, which may be aqueous suspensions, comprise a mixture of: a) 8.0-75 wt % (based on the total weight of a), b), c), and d)) of colloidal silica particles having an average particle size of 2.0-150 nm; b) 10-75 wt % of one or more polyester polymers; c) 10-75 wt % of one or more polymers selected from the group consisting of polyurethane polymers and (meth)acrylate polymers; and d) 0-10 wt % of one or more crosslinkers. Ink-receptive layers, which may exhibit high gloss and high ink anchoring are also provided, as are constructions comprising such layers. Porous solids are also provided, comprising: a) 8.0-75 wt % of colloidal silica particles having an average particle size of 2.0-150 nm; and b) one or more water dispersible polymers.

The present invention relates to a coating composition including polysilazane mixed in a suitable solvent, and nanoparticles dispersed therein, a method of forming the coating composition, a method of forming the coating and a coating.

With respect to electromagnetic wave absorbing particles that contain a composite oxide, the composite oxide includes an element A that is one or more elements selected from H, an alkali metal, Mg, and an alkaline earth metal, and an element B that is one or more elements selected from V, Nb, and Ta, wherein a relationship of 0.001?x/y?1.5 is satisfied when an amount of substance of the element A contained in the composite oxide is x and an amount of substance of the element B is y.

An insulated wire comprising a conductor and an insulating layer covering the conductor, wherein: the insulating layer comprises a resin and a first filler; the resin comprises a polyimide; the first filler is present in the form of a primary particle or a secondary particle having a plurality of the primary particles aggregated; the primary particle is a silica or alumina particle; the secondary particle has a particle diameter of 0.03 m or more and 5 m or less; and the percentage of the total area of the secondary particles to the sum of the total area of the primary particles and the total area of the secondary particles in the cross section of the insulated wire is 50% or more.

In one embodiment, an antibacterial material includes at least one microparticles selected from tungsten oxide microparticles and tungsten oxide complex microparticles. The microparticles, which have undergone a test to evaluate viable cell count by inoculating in a test piece, to which the microparticles are adhered in a range of 0.02 mg/cm.sup.2 or more and 40 mg/cm.sup.2 or less, at least one bacterium selected from among Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, methicillin-resistant Staphylococcus aureus, and enterohemorrhagic Escherichia coli, and storing for 24 hours, have an antibacterial activity value R of 0.1 or more expressed by the following: R=log(B.sub.1/C.sub.1) where, B.sub.1 denotes an average value (number) of viable cell count after storing an untreated test piece for 24 hours, and C.sub.1 denotes an average value (number) of viable cell count after storing the test piece on which the microparticles are coated for 24 hours.

Provided is a water-based coating composition capable of forming a multilayer coating film having an excellent finished appearance and having excellent storage stability. A water-based coating composition to be used as a water-based first colored coating (X) in a 3-coat-1-bake multilayer coating formation method which sequentially applies a water-based first colored coating (X), a water-based second colored coating (Y), and a clear coating (Z) and heats and cures the obtained three-layer multilayer coating film simultaneously, wherein the water-based coating composition contains at least one resin selected from acrylic resins (A) and polyester resins (B), a curing agent (C), and urethane resin particles (D) obtained from structural components including a polyisocyanate component (d1) containing at least one diisocyanate (d1-1) selected from xylylene diisocyanate and hydrogenated xylylene diisocyanate and a polyol component (d2).

A thin film on a surface of a solid substrate, including: a) spraying on the surface: a colloidal suspension including solid nanoparticles (or colloids) of an inorganic compound dispersed in a solvent to obtain a wet layer of the colloidal suspension on the surface; or a suspension including an inorganic compound in polymeric form in a solvent, to obtain a wet layer of the suspension of the inorganic compound in polymeric form on the surface; or a solution or suspension of an organic polymer in a solvent, to obtain a wet layer of the solution or suspension of the organic polymer on the surface; b) drying the wet layer; c) optionally, heat-treating the wet layer that has undergone the drying step, whereby the thin film is obtained; wherein: the solvent comprises at least 95% by weight of water, and the drying is carried out in a static atmosphere.