A solvent-free composite powder comprising at least one thermoplastic material and at least one submicron nanoparticle material.

A method of fabricating a hydrophobic coating on a surface of a solid substrate which includes a layer-integrable material includes the steps of depositing a deformable layer of the layer-integrable material onto the surface of the solid substrate, forcibly embedding a plurality of particles within the deformable layer, and solidifying the deformable layer including the plurality of particles so as to be integral with the surface of the solid substrate. At least a portion of the plurality of particles is embedded at a threshold depth within the deformable layer prior to solidification.

The present disclosure provides an encapsulated particle for anti-UV radiation. The encapsulated particle includes a core comprising an anti-UV agent, and a shell at least partially enclosing the core and comprising a polymer. Due to the presence of the shell, the anti-UV agent can be released into surroundings at a controlled manner. The encapsulated particle can be incorporated into coatings or articles to extend their service life.

The heat insulation coating includes the particles (secondary particles) of the silica aerogel (i) and the silica-based binder (ii). The thickness of the heat insulation coating is several 10 to several 100 m. The particle size of the secondary particles is distributed in a range from the lower limit Rmin to the upper limit Rmax. The lower limit Rmin is 10 nm. The upper limit Rmax is equal to the coating thickness of the heat insulation coating.

Disclosed is a coating composition which includes: polyurethane; and amphiphilic silica nanoparticles having an amine functional group and a fluorine functional group in their structure. Further provided are a polyurethane-silica composite film including the coating composition and a method of preparing the same.

The present invention relates to a composition for forming a coating layer having a self-healing property which enables the provision of a film exhibiting further improved mechanical properties together with excellent self-healing properties by being applied to the exterior of various household appliances or display devices, etc., a coating layer and a film. The composition for forming a coating layer having a self-healing property comprises: a poly(C.sub.2-4 alkylene glycol)-modified polyfunctional urethane (meth)acrylate-based binder; a bifunctional or higher polyfunctional (meth)acrylate-based compound; a UV initiator; and a silica nanoparticle, wherein the binder has a trifunctional or higher urethane bond and each poly(C.sub.2-4 alkylene glycol)-modified (meth)acrylate-based compound is bound to the urethane bond in the binder, and at least two poly(C.sub.2-4 alkylene glycol)-modified (meth)acrylate-based compounds bound to each urethane bond include poly(C.sub.2-4 alkylene glycol) repeating units whose numbers of repetitions are different from each other.

The invention provides a composition for forming a hydrophobic material, the composition being made by combining: a perfluorinated amine compound comprising at least two amine moieties, such as a compound made by combining a straight or branched chain C.sub.1-10 alkyl amine having at least two amine groups per molecule, with a straight or branched chain C.sub.1-12 perfluorinated carboxylic acid confining at least one COOH group per molecule; an epoxy compound comprising at least two epoxy moieties; a lubricant, such as a perfluorinated polyether; a population of nanoparticles; and a solvent. Hydrophobic materials formed by evaporation of the solvent from such a composition are also provided as are intermediates excluding the lubricant which are used in the formation of such compositions. Such compositions are used in the formation of hydrophobic and particularly superhydrophobic surfaces. Advantageously these compositions are useful to form robust surface coatings that are resistant to mechanical wear.

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.

The present invention relates to an anti-reflective film exhibiting one or more peaks at a scattering vector (q.sub.max) of 0.0758 to 0.1256 nm.sup.1, in a graph showing a log value of scattering intensity to a scattering vector defined in small-angle X-ray scattering.

Method of increasing stain resistance of a surface of a porous layer formed by a binder and filler particles. In the surface, the filler particles are spaced apart and particles of precipitated calcium carbonate having a particle size in the range of 30 to 60 nm are incorporated into the layer in a sufficient amount to fill pores between the filler particles of the surface.