Methods and formulations for use of phase change materials (PCMs) as coatings or integrated with building materials are disclosed. A formulation comprises an amount of phase change material, for example a mass fraction of about 0.01 to about 0.50. The PCM materials may be applied as a surface treatment such as paint, for example in order to provide improved thermal regulation to a building or a portion thereof.

A composition comprising a first, synthetic gel and a second gel is useful for the preparation of waterborne multicolor paints.

Disclosed in certain embodiments is a coating composition comprising (i) a solvent, (ii) a resinous binder, and (iii) a structural colorant comprising closed-cell metal oxide particles, and corresponding coatings, coated automotive parts and methods thereof.

Colorant compositions which are suitable for tinting base paint or stains in color tinting equipment and which provide improved resistance to microbial contamination by inclusion of a combination of antimicrobial agents. Also disclosed is a method for assessing the resistance of colorant compositions to microbial growth.

The purpose of the present disclosure is to provide a photoluminescent coating material composition that forms a coating film which has excellent metallic gloss and in which unevenness is unlikely to occur, when being used not only in robotic coating but also in coating using a liquid discharge head in which discharging is controlled by changing the relative distance between a valve body and a discharge port. A photoluminescent coating material composition according to the present disclosure has the following configuration. The photoluminescent coating material composition contains water, a scale-like aluminum pigment (A), and nanocellulose (B). The scale-like aluminum pigment (A) has volume mean particle diameters of d50 within a range of 0.5-8.0 m and d90 within a range of 2.0-15.0 m.

A composition is provided that includes a graphene dispersion, a silicone microemulsion, a reactive siloxane emulsion, and water as a majority by weight of the composition. A process for imparting a durable shine to a vehicle surface is also provided. The composition is applied to the vehicle surface. The water is allowed to evaporate from the composition to form a coating imparting a durable shine to the vehicle surface. A coating is obtained after evaporation. The coating includes a silicone film formed by the evaporation of water from a silicone microemulsion and the cross-linking of a siloxane from an emulsion. Graphene particles are embedded in the silicone film. The coating has a thickness of between having a thickness of between 5 and 10,000 nanometers and a hardness of between 3 and 7 GPa.

The invention relates to coating compositions based on organic solvents and comprising at least one hydroxyl-containing compound (A), at least one crosslinking agent (B) having groups reactive toward hydroxyl groups, and at least one silica gel based matting agent (M), wherein (i) the matting agent (M) is surface-modified with one or more waxes, and (ii) the coating composition further comprises at least one hydrophobic silica based rheological assistant (R). The present invention further provides multistage coating methods using these coating compositions, and also the use of the coating compositions as clearcoat or application of the coating method for automotive OEM finishing, for the finishing of parts for installation in or on automobiles, and for automotive refinishing.

Matte substrates comprising a water based coating composition and a base substrate. The water based coating composition comprises either no or only small amounts of mineral filler, refractory filler and/or organic filler and no other matting agents. The water based coating composition is typically applied to the base substrate at a coating weight of less than or equal to about 3 dry pounds of the water based coating composition per about 3,000 square feet of the base substrate. The matte substrate generally has a 60 gloss less than about 20.

A method for forming a multilayer coating film, including a first base coating composition application step for applying a first basecoat containing a colored pigment and a photoluminescent pigment, a second base coating composition application step for applying a second base coating composition containing a colored pigment and a photoluminescent pigment to the object having undergone the first base coating composition application, a top clear coat application step for applying a top clear coating composition to the object having undergone the second base coating composition application step, and a step for heating and curing the uncured coating films, the pigment weight concentration of photoluminescent pigment in the second basecoat is 0.01-1.1 mass %, the first base coating film has a light reflectance of 10-30% in a certain wavelength region, and the second base coating film has a light transmittance of 60-90% in the wavelength region.

An intumescent fire-retardant and anti-corrosive coating modified by polyaniline-silicon carbide and a preparation method thereof are provided, the coating includes a compound A and a compound B. The compound A includes a waterborne epoxy resin emulsion, polyaniline-silicon carbide composite material, fire-retardant filler, titanium dioxide, aluminum hydroxide, talc powder, a wetting dispersant, a defoaming agent, a flow agent and water, the compound B includes an epoxy hardener. The polyaniline-silicon carbide composite material is prepared from silicon carbide, phenylamine, protonic acid and an oxidizing agent through an ice bath. The polyaniline-silicon carbide composite material can enhance dispersion in the emulsion through the organic-inorganic composite, and silicon carbide has high thermal stability and good density, while polyaniline serves as a material with unique fire-retardant properties. The synergy between the two effectively enhances the fire resistance and anti-corrosion performance of the coating, strengthens the strength of the intumescent layer, and solves existing problems.