C09D7/67

Methods of producing colored and superhydrophobic surfaces, objects, and coatings

Methods of producing colored and superhydrophobic surfaces, objects, and coatings using a colored paint that imparts a superhydrophobic surface on an object is a suspension of hydrophobic particles in a polymeric binder and a plasticizer in a solvent or mixed solvent, wherein at least a portion of the hydrophobic particles are colored particles. Colored particles can be ultramarine, iron oxide, chromium oxide, or any other colored metal oxide. The hydrophobic particles can be metal oxide particles that are surface functionalized with a fluorinated alkyl silane or an alkyl silane. The binder is a mixture of PDVF and PMMA in a ratio of 3:1 to 10:1. The plasticizer is a mixture of triethyl phosphate and perfluoro(butyltetrahydrofuran) or other perfluorinated hydrocarbon. Surfaces coated using this paint display contact angles in excess of 150° and resist abrasion.

Low-reflection film-coated transparent substrate, photoelectric conversion device, coating liquid for forming low-reflection film of low-reflection film-coated transparent substrate, and method for producing low-reflection film-coated transparent substrate

A low-reflection film-coated transparent substrate of the present invention includes a transparent substrate and a low-reflection film formed on at least one principal surface of the transparent substrate. The low-reflection film is a porous film including: fine silica particles being solid and spherical and having an average particle diameter of 80 to 150 nm; and a binder containing silica as a main component, the fine silica particles being bound by the binder. The binder further contains an aluminum compound. The low-reflection film contains as components: 55 to 70 mass % of the fine silica particles; 25 to 40 mass % of the silica of the binder; 0.1 to 1.5 mass % of the aluminum compound in terms of Al.sub.2O.sub.3; and 0.25 to 3% of an organic component. The low-reflection film has a thickness of 80 to 800 nm. A transmittance gain is 2.5% or more, the transmittance gain being defined as an increase of average transmittance of the low-reflection film-coated transparent substrate in a wavelength range of 380 to 850 nm relative to average transmittance of the transparent substrate uncoated with the low-reflection film in the wavelength range. The organic component includes at least one selected from the group consisting of a ß-ketoester and a ß-diketone.

COMPOSITE FILM WITH ANTI-REFLECTIVE COATING
20230159764 · 2023-05-25 ·

A composite film may include a first transparent substrate and a first anti-reflective coating overlying a first surface of the first transparent substrate. The first anti-reflective coating may include a first UV curable acrylate binder, a photo initiator component, and silica nanoparticles dispersed within the first anti-reflective coating. The first anti-reflective coating may further include a ratio AC1.sub.SiO2/AC1.sub.B of at least about 0.01 and not greater than about 1.3. The composite film may further have a VLT of at least about 93.0% and a haze value of not greater than about 3%.

Coating material for formation of matte hard coat, and decorative sheet using same
11466111 · 2022-10-11 · ·

Embodiments provide a coating material containing: (A) 100 parts by mass of an acrylic curable resin; (B) 5-200 parts by mass of aluminum oxide particles having an average particle size of 1-100 μm; (C) 0.1-20 parts by mass of aluminum oxide fine particles having an average particle size of 1-100 nm; and (D) 1-100 parts by mass of a compound having two or more isocyanate groups per molecule. In one embodiment, the acrylic curable resin (A) includes: (a1) a structural unit derived from a hydroxy group-containing (meth)acrylic acid ester; (a2) a structural unit derived from a vinyl aromatic compound; and (a3) a structural unit derived from a (meth)acrylic acid alkyl ester. In one embodiment, the acrylic curable resin (A) may contain, in addition to the structural units (a1) and (a2): (a3-1) a structural unit derived from methyl methacrylate; and (a3-2) a structural unit derived from an aliphatic (including alicyclic) alkyl ester having 4 or more carbon atoms of a (meth)acrylic acid.

Laminated coating film, coated article, and method for forming laminated coating film

In a coated article including a laminated coating film configured such that a first base layer 3 containing a lustrous material 11 and a second base layer 4 and a transparent clear layer 5 containing an organic pigment 15 are stacked on each other in this order on a coating target object, the same type of organic ultraviolet absorbing agent 13 having a molecular weight of equal to or greater than 500 is added to the first base layer 3 and the second base layer 4.

NANOPARTICLE POLYELECTROLYTE NETWORK FILMS AND METHODS OF MAKING SAME
20230071028 · 2023-03-09 ·

Compositions for forming coatings disclosed herein can include a cationic polyelectrolyte, an anionic polyelectrolyte, nanostructures, and a crosslinking agent. The compositions, coatings, methods, and kits described herein can have improved tribological properties, hardness, and strength.

SELECTIVE COATINGS FOR HYDROPHOBIC SURFACES AND METHODS OF MANUFACTURE THEREFOR

Compositions for rendering a hydrophobic surface hydrophilic and methods for manufacturing them and applying them to objects such as contact lenses. A hydrophobic binder, typically a silicone compound such as a siloxane, selectively attaches hydrophilic solution-produced nanoparticles to the surface, such as hydrophobic regions of a silicone contact lens. Hydrophilic regions are preferably unmodified. The binder attaches to the particles via functional groups in solution and can autoadhere to the hydrophobic surface. A coating of the composition can be deposited from solution at ambient or room temperature, allowing coating of temperature sensitive substrates. Such coatings can withstand heating (such as for sterilization) in acidic solutions or heat sensitive solutions, retaining their hydrophilic properties.

COMPOSITION FOR FORMING GAS BARRIER FILM, GAS BARRIER FILM AND METHOD FOR PRODUCING SAME

A gas barrier film-forming composition comprising the following components: plate-like particles composed of exfoliated layer substances generated through interlayer exfoliation of layered compound, plate-like particles having average thickness of 0.7 nm to 100 nm, average major-axis length of 100 nm to 100,000 nm, and ratio of (maximum major-axis length/width orthogonal to maximum major-axis length) of 1.0 to 10.0, and containing quaternary ammonium ions each having total carbon atom number of 13 to 45 and one or two C.sub.10-20 alkyl groups, and anionic surfactant having ammonium ion, wherein the amount of each of quaternary ammonium ions and anionic surfactant is more than 0% by mass and 3.0% by mass or less relative to mass of plate-like particles, a water-soluble polymer; and an aqueous medium. The gas barrier film-forming composition, wherein layered compound is ilerite. A formed product comprising a base and a gas barrier film disposed on surface of the base.

DISPLAY DEVICE AND MANUFACTURING METHOD OF DISPLAY DEVICE

A display device and a manufacturing method of the display device are provided. The display device includes a substrate; a pixel definition layer disposed on the substrate and having a plurality of pixel openings; a surface-active nanolayer disposed on a surface of the substrate and on a surface extending to the pixel definition layer, wherein the surface-active nanolayer covers a plurality of nanoparticles; and a light-emitting layer disposed in the plurality of pixel openings.

SUPERHYDROPHOBIC COATING WITH ABRASION RESISTANCE AND PREPARATION METHOD THEREOF

Disclosed are a superhydrophobic coating with abrasion resistance and a preparation method thereof. The coating has a composite structure formed by a nanohybrid composed of nano-SiO.sub.2 and multi-wallet carbon nanotubes, and a resin as a matrix.