A method of producing silica-based particles includes, when a dispersion liquid of composite oxide particles is prepared by simultaneously adding an aqueous silicate solution and/or an acidic silicic acid solution and an aqueous solution of an alkali-soluble inorganic compound in an alkali aqueous solution or in an alkali aqueous solution with seed particles dispersed therein, if required, the aqueous silicate solution and/or the acidic silicic acid solution and the aqueous solution of alkali-soluble inorganic compound are added so that the molar ratio of MO.sub.x/SiO.sub.2 are in a range from 0.01 to 2, herein MO.sub.x denoting an inorganic oxide other than silica and SiO.sub.2 denoting silica to prepare the dispersion liquid of composite oxide particles with an average diameter (D.sub.p1) in a range from 3 to 300 nm.

A coating film exhibiting excellent water and oil repellency is provided. The coating film comprises (a) calcium carbonate having an average particle diameter of 600-9,000 nm, (b) poly(vinyl alcohol), and (c) a copolymer including constituent units of a monomer having a C6 or lower perfiuoroalkyl group.

A coating including one or more nano-materials and an organic material, the one or more nano-materials being present in a concentration of up to about 30% by weight, based on the total weight of the coating. A razor including one or more blades and a coating disposed on at least one of the one or more blades. The coating on the one or more blades of the razor including one or more nano-materials and an organic material, the one or more nano-materials being present in a concentration of up to about 30% by weight, based on the total weight of the coating.

A coating including one or more nano-materials and an organic material, the one or more nano-materials being present in a concentration of up to about 30% by weight, based on the total weight of the coating. A razor including one or more blades and a coating disposed on at least one of the one or more blades. The coating on the one or more blades of the razor including one or more nano-materials and an organic material, the one or more nano-materials being present in a concentration of up to about 30% by weight, based on the total weight of the coating.

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

The aqueous protective coating composition is provided for easy application to refractory linings and walls. When dried, the protective coating composition provides excellent chemical resistance to molten aluminum alkali metals and vapors. The protective coating composition includes alumina and silica, suitably provided as mullite, calcined alumina, and colloidal silica; and a metallic non-wetting agent.

There is provided an aerosol generating article (2) comprising a combustible heat source (4) having an upstream portion and a downstream portion. The aerosol generating article further comprises an aerosol-forming substrate (10) downstream of the heat source (4) and a wrapper (36) circumscribing an upstream portion of the aerosol-forming substrate (10) and the downstream portion of the combustible heat source (4). The aerosol generating article (2) further comprises a non-combustible coating (42) provided on the upstream portion of the combustible heat source (4) and not on the downstream portion of the combustible heat source (4), the non-combustible coating having a thickness of between about 30 micrometres and about 250 micrometres.

In various embodiments, the present invention is directed to a supraparticle for use in producing structural colors comprising a plurality of core/shell nanoparticles having a melanin or synthetic melanin core and a silica shell having a plurality of silanol groups on its outer surface and a poly(ethylene glycol) (PEG) crosslinker. In various embodiments, the structure of these crosslinked supra particles is reinforced by hydrogen bonds formed between the silanol groups on the core-shell nanoparticles and mechanical, solution phase, and dry state stability.

The present invention relates to a coating composition including a film-forming resin present in an amount of 20 percent to 60 percent by weight of the total solids of the coating composition; an amount of a first material comprising a reflective property towards ultraviolet light; and an amount of a second material comprising an absorptive property towards ultraviolet light. A substrate comprising a surface at least partially coated with the coating composition. A method of preparing a substrate including coating a portion of a surface of the substrate with the coating composition and curing the coating composition. A vehicle comprising a surface at least partially coated with the coating composition.

An aqueous coating composition for automotive exterior, the aqueous coating composition containing resin particles (A), a crosslinking agent (B), a pigment (C), and a nanocellulose (D). In the aqueous coating composition, a content of the nanocellulose (D) is 0.5 to 2.0 parts by mass in terms of solid content with respect to 100 parts by mass of a resin solid content in the coating, a solid content concentration of the coating composition is in a range from 45 to 65 mass %, and a viscosity of the coating composition measured by a Brookfield-type viscometer under measurement conditions of a temperature of 20? C. and a rotor rotation speed of 60 rpm is in a range from 350 to 1200 mPa.Math.s.