C09D7/67

MATERIALS AND METHODS FOR PASSIVE RADIATIVE COOLING

A coating including a relatively thin visible-absorptive layer atop a relatively thick non-absorptive, solar-scattering underlayer. The thin top layer enables efficient absorption of appropriate visible wavelengths to show specific colors, and minimizes absorption in the infrared radiation in sunlight due to its relatively small thickness. Meanwhile, the bottom layer maximizes the backscattering of infrared light without absorption to reduce solar heating.

SOLUTION-PROCESSED SELECTIVE SOLAR ABSORPTION COATINGS AND METHODS OF PREPARATION THEREOF
20210063055 · 2021-03-04 ·

The present disclosure provides a solution-processed selective solar absorption coating and a process for the preparation thereof.

Homogeneous anaerobically stable quantum dot concentrates

The present disclosure provides nanostructure compositions and methods of producing nanostructure compositions. The nanostructure compositions comprise at least one population of nanostructures, at least one reactive diluent, at least one anaerobic stabilizer, and optionally at least one organic resin. The present disclosure also provides nanostructure films comprising a nanostructure layer and methods of making nanostructure films.

Coating compositions

A surface finish composition including a silica-bonded reversibly cross-linked co-polymer and a water-dispersible polyurethane. The silica-bonded reversibly cross-linked co-polymer includes a base co-polymer including monomers derived from one or more ethylenic polymerizable monomers and an alkoxysilyl acrylate; a reversible cross-linking agent; and a silica nanoparticle bonded to the base co-polymer. The amount of water-dispersible polyurethane is 15-50% by weight of the combined amount of water-dispersible polyurethane and base co-polymer.

WATER-BASED UV COATINGS, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
20230416562 · 2023-12-28 ·

The present invention provides a water-based UV coating, and a preparation method therefor and an application thereof. The coating comprises the following raw material components in parts by weight: 15-25 parts of a water-based polycarbonate dispersion, 30-60 parts of a water-based aliphatic polyurethane acrylate dispersion, 5-15 parts of a UV reactive diluent, 1-4 parts of a photoinitiator, 0.2-1 part of an auxiliary agent, 3-8 parts of a film coalescing aid, and 5-15 parts of water. The water-based UV coating of the present invention has good wear resistance after curing, is not easy to crack, and has a good application effect on an automotive interior trim part.

PROCESS FOR MODIFICATION OF A SOLID SURFACE

A process for the modification of a surface of a solid material, having the step of contacting the surface with a surface-modifying composition under irradiation with light of a wavelength in the range of 200 to 800 nm optionally in the presence of a photoinitiator, wherein the solid material has surface groups selected from COH, SiOH, CO and COC groups and wherein the surface-modifying composition has at least a hydrosilane and at least one reactive compound (A) other than the hydrosilane, wherein the reactive compound (A) has at least two functional groups selected from (meth)acrylate, (meth)acrylamide, hydroxyl, carboxylic acid, alkene, alkyne and epoxy, and wherein the amount of hydrosilane in the composition ranges between 0.5 and 99 vol %, and wherein the vol % is determined at 20 C. relative to the total of the surface modifying composition. A solid material having a partial surface modification layer.

COATING AGENT, ANTI-FOGGING FILM, METHOD FOR MANUFACTURING ANTI-FOGGING FILM, AND LAMINATE

A coating agent includes a hydrolyzate of a compound represented by General Formula (1), silica particles, a high boiling point solvent having a boiling point of 120 C. or higher, and a resin having a pyrrolidone group in a side chain. In General Formula (1), R.sup.1, R.sup.2, R.sup.3, and R.sup.4 each independently represent a monovalent organic group having 1 to 6 carbon atoms. n represents an integer of 1 to 20,

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TRANSPARENT HYDROPHOBIC AND ICEPHOBIC COMPOSITIONS, COATINGS, AND METHODS

In certain aspects, a composition includes a monomer binder, a plurality of silica nanoparticles, a surface energy reducing additive, and a blend of a high polarity solvent and a low polarity solvent. The high polarity solvent has a dipole moment of about 1.2 or greater, and the low polarity solvent has a dipole moment of about 0.7 or less. In certain aspects, a coated substrate includes a substrate and a coating over the substrate. The substrate is selected from a group consisting of glass, polycarbonate, polyacrylate, and polyethylene terepthalate. The coating includes a polymer binder, a plurality of nanoparticles, and a surface energy reducing additive. The coated substrate has a transparency of at least about 80% light transmission at one or more wavelengths in a range of 380 nm to 740 nm.

HYDROPHOBIC-ICEPHOBIC ORGANOSILANE COMPOSITIONS, COATINGS, AND METHODS

A hydrophobic-icephobic composition includes a monomer binder, an organic solvent, and a hydrolyzed organosilane. The hydrolyzed organosilane is represented by a formula of R.sup.1Si(OH).sub.3. The R.sup.1 group comprises an alkyl or a haloalkyl having from 3 to 40 carbons. A hydrophobic-icephobic coating over a substrate includes a polymer base and a polyorganosiloxane. The polyorganosiloxane includes (R.sup.1SiO.sub.2) units. The R.sup.1 group includes an alkyl or a haloalkyl having from 3 to 40 carbons. One or more of the (R.sup.1SiO.sub.2) units of the polyorganosiloxane are may be chemically bonded to the substrate.

METHOD FOR FORMING A POLYETHYLENE ALUMINA NANOCOMPOSITE COATING

A method for forming a polyethylene and alumina nanocomposite coating on a substrate is described. The method may use microparticles of UHMWPE with nanoparticles of alumina to form a powder mixture, which is then applied to a heated steel substrate to form the nanocomposite coating. The nanocomposite coating may have a Vickers hardness of 10.5-12.5 HV.