This coating solution for a gas barrier contains an ammonium salt (A) of a polymer having a carboxyl group, a particulate multivalent metallic compound (B), and water, the content of the multivalent metallic compound (B) being about 0.5-2.0 times the chemical equivalent of the ammonium salt (A), and the mean particle diameter of the multivalent metallic compound (B) being about 4 μm or less.

The present invention relates to security elements, comprising (a) a substrate, (b) on at least part of the substrate surface a metal layer, (c) optionally on at least part of the metal layer a dielectric layer, (d) on at least part of the metal layer, or the dielectric layer, a layer obtained by overcoating the metal layer, or the dielectric layer with a composition, comprising (i) silver nanoparticles, (ii) a solvent, (iii) (surface) stabilizing agent(s) and (iv) optionally a binder, and (e) a protective layer on top of layer (d). The maximum absorption wavelength of the silver nanoparticles in layer (d) is controlled by the amount of (surface) stabilizing agent(s) and optionally binder relative to the amount of silver nanoparticles to be preferably in the range of 700 to 1600 nm.

Provided is an organic-inorganic-hybrid thin film, which is provided in the form of a layered structure to prevent the scratching of the surface of a variety of kinds of displays, such as those of smartphones, tablet PCs, and laptop computers, and to fabricate ITO hard coating films, gas-barrier plates for flexible displays, and cover windows, and to a method of manufacturing the same, and more particularly, the organic-inorganic-hybrid thin film is provided in the form of a layered structure exhibiting the high light transmittance, mechanically flexible properties, lightweightness, and chemical resistance of a curable resin, and also ensuring the scratch resistance, heat dissipation performance, gas-barrier properties, and inherent refractive index matching of inorganic particles, thus exhibiting optical compensation effects, thereby increasing final surface hardness and satisfying barrier properties and index matching properties.

A multi-layer coating that transmits and reflects light can include a first coating layer and a second coating layer applied over the first coating layer. The first coating layer is prepared from a coating composition that includes a film forming resin, crosslinked organic particles, and inorganic pigment particles. The crosslinked organic particles and the inorganic pigment particles each have a refractive index that is different from the refractive index of the film forming resin. The second coating layer is prepared from a coating composition that includes a film forming resin and reflective and/or translucent particles.

This invention provides resin formulations which may be used for 3D printing and pyrolyzing to produce a ceramic matrix composite. The resin formulations contain a solid-phase filler, to provide high thermal stability and mechanical strength (e.g., fracture toughness) in the final ceramic material. The invention provides direct, free-form 3D printing of a preceramic polymer loaded with a solid-phase filler, followed by converting the preceramic polymer to a 3D-printed ceramic matrix composite with potentially complex 3D shapes or in the form of large parts. Other variations provide active solid-phase functional additives as solid-phase fillers, to perform or enhance at least one chemical, physical, mechanical, or electrical function within the ceramic structure as it is being formed as well as in the final structure. Solid-phase functional additives actively improve the final ceramic structure through one or more changes actively induced by the additives during pyrolysis or other thermal treatment.

An electrodeposition dispersion of the present invention is formed of a dispersion medium and a solid content. The solid content includes polyimide-based resin particles and fluorine resin particles. Also, a content ratio of the fluorine resin particles in the solid content is 20 to 70% by mass. In addition, a median diameter of the polyimide-based resin particles is 50 to 400 nm.

The present disclosure relates to a camouflage material for use in a snowy environment. The camouflage material includes hexagonal boron nitride (h-BN). The disclosure further relates to the use of hexagonal boron nitride for UV signature management in a camouflage material, as well as a camouflage product including such a camouflage material.

One object of the present invention is to provide an electroconductive paste capable of forming an electroconductive film on a substrate having low heat resistance by light irradiation, having unlimited sintering conditions, excellent adhesion to a resin substrate, and capable of forming an electroconductive film having good electroconductivity, and the present invention provides an electroconductive paste wherein the electroconductive paste contains fine copper particles having an average particle diameter of 300 nm or less which is measured using SEM, coarse copper particles having an average particle diameter of 3˜11 μm which is measured using SEM, a binder resin, and a dispersion medium, the fine copper particles includes a coating film containing cuprous oxide and copper carbonate on at least a part of the surface thereof, the ratio of the mass oxygen concentration to the specific surface area of the fine copper particles is 0.1˜1.2% by mass.Math.g/m.sup.2, the ratio of the mass carbon concentration to the specific surface area of the fine copper particles is controlled to 0.008˜0.3% by mass.Math.g/m.sup.2, and the amount of the binder resin is 2.5˜6 parts by mass with respect to the total of 100 parts by mass of the fine copper particles and the coarse copper particles.

There is provided an aqueous coating agent composition that does not contain an organotin compound and forms a coating film having good slipperiness and having excellent adhesiveness (adhesion) and abrasion resistance. The aqueous coating agent composition contains: (A) polydiorganosiloxane having both terminals blocked with hydroxyl groups, the polydiorganosiloxane having a viscosity of 50 to 100,000,000 mPa.Math.s (at 25° C.); (B) polyorganohydrogensiloxane having at least three hydrogen atoms in one molecule; (C) a zinc compound as a curing catalyst; (D) an organic compound and/or polyorganosiloxane having at least one of a primary amino group and a secondary amino group; (E) an adhesion improving component; and (F) spherical particles.

The problem addressed by this invention is to provide a laminate for molding having excellent moldability and post-curing properties of the hard-coat layer, and which can maintain the surface of the hard-coat layer in a satisfactory state while uncured. This problem is solved by a laminate for molding containing a hard-coat layer and a masking film affixed to the surface of the hard-coat layer, having an adhesive surface, which is the hard-coat layer-side surface of the masking film, with a surface free energy of at least 30.0 (mN/m) measured in accordance with the OWRK method, before being affixed. The hard-coat layer is in an uncured state.