85results about "Multicolor effect coatings" patented technology

The present invention relates to the technical field of polyurethane coatings, and in particular to a polyurethane coating with sufficient tack-free dryness and a preparation method therefor. In the present invention, ethylene glycol, potassium methoxide, and glycidol are used to prepare a branched polyglycidyl ether and silicon dioxide is modified using the branched polyglycidyl ether. The addition of the branched polyglycidyl ether improves the compatibility of the modified silicon dioxide in a modified polyurethane emulsion, thereby enhancing the hydrophobicity and corrosion resistance of the coating. The backbone of the branched polyglycidyl ether has a high molecular weight, providing a large number of crosslinking sites, and by adding the branched polyglycidyl ether-modified silicon dioxide to the polyurethane coating, the water resistance of the polyurethane coating is enhanced. In the present invention, benzotriazole is also loaded on the silicon dioxide as a corrosion inhibitor, thereby imparting a corrosion-resistant effect to the coating.

The invention provides a colored radiation refrigeration coating as well as a preparation method and application thereof, and belongs to the technical field of building materials. The preparation method comprises the following steps: carrying out self-assembly on a sulfonated cellulose nanocrystal aqueous solution to obtain a colored film; sequentially carrying out heat treatment and crushing on the colored film to obtain structural color particles; mixing the structural color particles with resin to obtain a mixture; and coating a reflecting layer with the mixture to obtain the colored radiation refrigeration coating. According to the colored radiation refrigeration coating and the preparation method thereof, the sulfonated cellulose nanocrystals form an expandable colored coating in a manner of crushing and mixing with resin, so that the problem of brittleness of the cellulose nanocrystals in use is solved, and the obtained colored radiation refrigeration coating can reduce the refrigeration energy consumption in a building use process in summer. The reflectivity of the prepared colored radiation refrigeration coating is 90-93%, the emissivity of the prepared colored radiation refrigeration coating is 87-92%, and a radiation refrigeration effect can be achieved.

The invention discloses a self-adaptive thermochromism super-hydrophobic self-cleaning radiation cooling coating as well as a preparation method and application of the self-adaptive thermochromism super-hydrophobic self-cleaning radiation cooling coating. The method comprises the following steps: dissolving a polymer matrix in an organic solvent, and magnetically stirring at room temperature for 0.5-3 hours to obtain a prepolymer solution; the preparation method comprises the following steps: dispersing an optical filler in an organic solvent, and performing ultrasonic treatment for 0.5-3 hours to obtain an emulsion; mixing the prepolymer solution and the emulsion, stirring at room temperature for 10-60 minutes, adding thermochromic phase change microcapsules, and uniformly mixing to obtain a precursor suspension; and spraying the precursor suspension on the surface of a substrate, and curing to obtain the self-adaptive thermochromic super-hydrophobic self-cleaning radiation cooling coating. The preparation method provided by the invention is simple to operate and mild in reaction condition, and the prepared coating has the advantages of self-adaptive radiation cooling, visual attractiveness, super-hydrophobic self-cleaning and mechanical environment durability, and is suitable for energy conservation and protection of building outer walls, roofs and outdoor equipment.

To provide a multilayer coating film formation method which enables formation of a coating film having less unevenness and excellent brightness even under a normal temperature drying condition.SOLUTION: A brilliant multilayer coating film formation method includes a step (1) of coating a coloring coating material (I) containing a coloring pigment and a resin component onto a base material surface so that a thickness of a colored coating film is equal to or thicker than a covering film thickness, and drying the coloring coating material and providing a colored coating film, and a step (2) of coating a brilliant coating material (II) containing a brilliant pigment and a resin component onto the colored coating film obtained in the step (1), drying the brilliant coating material, and forming a brilliant coating film, in which the colored coating film does not contain a brilliant pigment or has a content of the brilliant pigment smaller than that of the brilliant coating film, and the brilliant coating film contains 0.05-15 mass% of the brilliant pigment and is thinner than a covering film thickness.SELECTED DRAWING: None

The invention relates to the technical field of infrared camouflage coatings, in particular to a single-component sea gray water-based camouflage coating and a preparation method thereof. The invention discloses a single-component sea gray water-based camouflage coating and a preparation method thereof, a white pigment of the camouflage coating uses infrared reflection titanium dioxide to replace part of conventional titanium dioxide, so that not only is the color displayed in a visible light region ensured, but also the reflectivity to sunlight in the visible light region and a near-infrared light region is improved; and the thermal radiation energy can be controlled from the temperature, so that the infrared emissivity is reduced. The inorganic pigment paste with different components and concentrations is used for toning, so that the coating can better adapt to the requirement of rich colors in different environments, not only has excellent aesthetic feeling in appearance, but also can meet the requirement of visible light camouflage compatibility visually.

To provide a double-layer coating film which can be recognized as a black coating film and has a proper shade feeling.SOLUTION: A multilayer coating film comprising a first coating film, a second coating film and a clear coating film in this order, wherein the first coating film contains a black pigment, the second coating film contains a bright black scaly pigment and a black pigment, the chroma C * 15 in the L * C * h color system is 6 or less, and the lightness L * 110 in the L * C * h color system is 3 or less, A ratio L * 15 / L * 110 of a lightness L * 15 and a lightness L * 110 in an L * C * h color system is 9 or more and 24 or less, and a luster intensity Si15 is 2 or more and 10 or less.SELECTED DRAWING: None

To provide a coating film having higher luminance. A coating composition including a coating-film-forming resin and a pigment, wherein: the pigment includes a scaly vapor-deposited metal pigment; and a cured coating film of the coating composition has a sparkle intensity (Si) at an angle of incidence of 45° of 20 or higher, a sparkle area (Sa value) of 10 or higher, and a granularity value (G value) that exceeds 10.

The present application relates to a kind of spiropyran derivatives, color-changing glass paint and its preparation method and application.The spiropyran derivative, characterized in that, with as shown in formula (I) structure: formula (I);In formula (I), R1, R2, R3, R4, R5 Or R6 Independently be H, OCH3 Or the specific substituent group on the specific benzene ring of this spiropyran derivative, by its skeleton and specific substituent group cooperation, can realize the color change under light condition;With the spiropyran derivative as photochromic powder, be applied in color-changing glass paint, can make color-changing glass paint color change under light condition, not only can make the light transmittance of color-changing glass paint after color change lower, and after aging treatment, still can make color-changing glass paint keep lower light transmittance, and durability is good.

A tungsten oxide coating material for an electrochromic device that is a coating material for forming a tungsten oxide thin film having electrochromic characteristics, the coating material comprising: a solvent; tungsten oxide nanoparticles dispersed in the solvent; and a binder, wherein in the tungsten oxide nanoparticles, a half-value width of a peak detected at 29° ±1° in X-ray diffraction analysis (2θ) is 2° or less, and a primary particle size is 5 to 25 nm.

To provide a coating method for enhancing a protection function to a dwelling-house base concrete outer surface, and suitable for imparting external appearance having a high-class feeling.SOLUTION: A coating method of a dwelling-house base concrete outer surface includes: a process (1) for coating the outer surface of dwelling-house concrete with an undercoat paint (I) containing an inorganic pigment (A1) and an aqueous resin (B1), and forming an undercoat film by drying the paint; and a process (2) for applying a topcoat paint (II) containing color paint particles (A2) which are obtained by granulating a color paint and an aqueous resin (B2) on the undercoat film which is obtained in the process (1), and forming a topcoat film having a dot pattern by drying the paint. A quantity of the inorganic pigment (A1) contained in the undercoat paint (I) is equal to or larger than 100 mass parts with respect to a resin non-volatile amount 100 mass parts of the aqueous resin (B1), and an elongation rate of a film which is formed of the undercoat paint (I) at a temperature of 23°C is equal to or higher than 100%.SELECTED DRAWING: None

The present invention relates to a metallic effect pigment-free radar compatible coating on a substrate, a method for making such a coating, and the use of such a coating, particularly in vehicle manufacturing.

This invention provides a structural color material that changes color according to light source characteristics and its preparation method. The structural color material of this invention is prepared by a method comprising the following steps: a black light-absorbing substance is uniformly mixed with a submicron monodisperse polymer microsphere emulsion, and then uniformly mixed with a gel solution to obtain a mixed dispersion. The mixed dispersion is then spray-dried to obtain the structural color material that changes color according to light source characteristics. The refractive index of the submicron monodisperse polymer microsphere emulsion is less than the refractive index of the gel colloidal particles in the gel solution. This invention is based on the combination of submicron-sized polymer microspheres with a lower refractive index and a gel substance with a higher refractive index to form a periodic structure with controllable refractive index. Due to the periodic structure of the spherical disordered assembly and its spherical scattering characteristics of the light source, this material will produce a color response to different light source spectra, realizing a structural color material that is easy to prepare and has highly controllable color.

A light emitting composition including first color emitters and second color emitters. The first color emitters are configured to emit, upon exposure to an energy source, visible light at a target color in response to absorption of energy across a first band of wavelengths. The second color emitters are configured to emit, upon exposure to the energy source, visible light at the target color in response to absorption of energy across a second band of wavelengths. The light intensity observable at the target color is enhanced relative to reflected white light without emission from the first and second color emitters. The light emitting composition can be a part of a paint, an ink, a fabric, a thread, a road sign, a highway marking, an automobile, a boat, a plane, a reflector, a building product, a concrete product, an epoxy product, a jewelry product, colored contact lens, a candle product, a rubber product, a plastic product, or other colored surface.

The present application relates to a kind of photo-variable pigment and its preparation method and application, the photo-variable pigment includes the following mass parts of component: water 60-80 parts, water-based film forming agent 35-50 parts, photochromic microcapsule 15-20 parts, light stabilizer 2-5 parts, thickening agent 1-5 parts, dispersing agent 1-5 parts, toner 1-5 powder, pH adjusting agent 0.3-1 part, antifoam 0.2-0.5 parts and preservative 0.1-0.3 parts.The present application is by adding photochromic microcapsule, so that photo-variable pigment has reversible photochromic property under the action of sunlight or ultraviolet light, the wall material of the photochromic microcapsule of the present application does not add the component that will release formaldehyde in preparation process, and the addition of octenyl succinate starch, water-based polyurethane prepolymer and composite emulsifier in wall material collectively improves the chemical stability, mechanical stability and long-term storage stability of photo-variable pigment microcapsule.

The invention discloses a stretchable PET color-changing film and a production process thereof, and relates to the technical field of color-changing films, the stretchable PET color-changing film comprises a modified PET base film, a color-changing layer and a film coating layer; the modified PET base film is prepared from the following raw materials in percentage by mass: 65 to 75 percent of polydimethylsiloxane copolymerized modified PET, 23 to 32 percent of thermoplastic polyurethane elastomer and 2 to 3 percent of auxiliaries; the color changing layer is prepared from the following raw materials in percentage by mass: 10 to 20 percent of photonic crystal dispersion liquid, 0.3 to 0.5 percent of polydimethylsiloxane, 0.1 to 1 percent of defoaming agent and the balance of waterborne polyurethane; and the film coating layer is nano silicon dioxide sol. The stretchable PET color-changing film provided by the invention has excellent tensile strength and elongation at break.

The application belongs to the technical field of functional polymer materials, and provides a heat-crosslinkable high-transparency electrochromic polymer, an electrochromic polymer film and a preparation method thereof. The 3,6-dimethoxy-9-(3-vinylphenyl)-9H-carbazole is obtained by mixing dimethoxy-9H-carbazole, m-bromostyrene, a dialkyl biaryl phosphine ligand, a first catalyst, an organic salt and a first organic solvent and then performing a heating reaction, and then the 3,6-dimethoxy-9-(3-vinylphenyl)-9H-carbazole is mixed with glycidyl methacrylate, a second catalyst and a second organic solvent to perform a polymerization reaction, so as to obtain the heat-crosslinkable high-transparency electrochromic polymer. The method is simple and low in cost, the polymer prepared by the method has carbazole derivatives as color-changing units and epoxy groups as heat-crosslinking units, and the polymer can be in-situ heat-crosslinked by blending with a crosslinking agent and heating in one step, so as to form a neutral-state high-transparency three-dimensional network film, and the polymer is particularly suitable for high-end transparent devices.

A photochromic hydroxyurethane compound according to the present invention is characterized by having a hydroxyurethane constituent unit represented by formula (1) on condition of having at least one photochromic site, which is a photochromic minimum unit, within a molecule. (1) ꟷXꟷOꟷCOꟷNHꟷ In the formula, X is an oxygen-containing chain organic group having a hydroxyl group as a substituent, or the hydrogen atom of the hydroxyl group is substituted by any of: (A) a photochromic group having the photochromic site; (B) a polymerization reactive group having a polymerizable substituent; (C) a C1-10 alkyl group; (D) a C3-10 cycloalkyl group; and (E) a C6-14 aryl group. (Each of (C) to (E) may be bonded to a hydrogen atom derived from the hydroxyl group via the oxygen-containing chain organic group.)

This tungsten oxide paint for an electrochromic element is a paint for forming a tungsten oxide thin film having electrochromic properties, the paint being characterized by comprising a solvent, tungsten oxide nanoparticles dispersed in the solvent, and a binder, wherein: in the tungsten oxide nanoparticles, a half maximum full-width of the peak detected at 29°±1° as measured by the X-ray diffraction analysis (2θ) is at most 2°; and tungsten oxide nanoparticles have a primary particle size of 5-25 nm.

The invention relates to the technical field of coatings, in particular to a reversible photochromic silver nanocluster-based composite coating as well as a preparation method and application thereof. The silver nanocluster-based composite coating is formed by compounding silver nanoclusters and light-cured polyurethane. Experimental results show that a compound film with uniformly dispersed clusters and a flat surface can be obtained by optimizing a doping process. The material can realize reversible color conversion from green to red for 80s under 405nm illumination, and has good photoresponsiveness; the P1 is subjected to 20 times of cycle test under the same illumination-heat recovery condition, and the result shows that the P1 can still keep 97% of the initial transmittance, which indicates that the composite coating has excellent photochromic cycle stability. In addition, the composite material also has the properties of intelligent dimming, passive cooling and the like.

The application belongs to the technical field of photovoltaic welding strips, and discloses a pre-coated colorant, a colored welding strip and application thereof.The pre-coated colorant disclosed by the application comprises 5-10 parts of rosin resin, 1-2.5 parts of polyamide resin, 1.8-2.7 parts of soldering active agent, 0.5-2 parts of surfactant, 1-5 parts of dyeing agent, 0.5-3 parts of corrosion inhibitor and 50-100 parts of solvent.The pre-coated colorant provided by the application can be attached to the surface of the welding strip, and different colors can be presented according to the color requirement of the welding strip for welding photovoltaic cell pieces, so that the color matching of the welding strip and the photovoltaic cell pieces is realized, the cumbersome steps of conventional film pasting are omitted, a large amount of processing cost is saved, the light receiving area of the cell pieces is completely released, the power generation efficiency of the BIPV assembly is greatly improved, and the blank in the field in China is filled.

Provided is a coating composition containing a hydroxyl group-containing resin (A), a curing agent (B), a scale-shaped effect pigment (C), a viscosity modifier (D), and an organic solvent (E) having a solubility in water at 20° C. of 4 mass % or greater. The viscosity modifier (D) contains at least one viscosity modifier selected from the group consisting of a cellulose nanocrystal (D1) and a cellulose nanofiber (D2). A content of the organic solvent (E) having a solubility in water at 20° C. of 4 mass % or greater is in a range of 10 to 25 mass % based on a content of a volatile component in the coating composition.

To provide a powder coating composition, etc., that can form a coating film that is glossy and has excellent brilliance, and is also excellent in terms of recovery and reuse. [Solution] The powder coating composition of the present invention contains resin-containing powder particles (A), a luminous pigment (B), and a binder (C), wherein the binder (C) has a central coordinate (δ) in the Hansen solubility sphere HSS which determines solubility with the solvent to be mixed. d , δ p , δ h When the interaction distance R is (19.0, 7.0, 5.0), a The resin is dissolved or dispersed in solvent (D) having a value of 20 or higher, has a Tg of 30°C or higher, and a weight-average molecular weight of 1,000 to 100,000.

The invention discloses a water-based fluorocarbon colorful granite coating, a preparation method and a coating system of the water-based fluorocarbon colorful granite coating. The coating is composed of a continuous phase and 20%-50% of colored particles. The continuous phase contains aqueous FEVE fluorocarbon emulsion, silica sol-acrylic acid composite emulsion, a surface modified attapulgite nanorod crystal material and the like; the colored particles take attapulgite colored sand calcined at a high temperature of more than 800 DEG C or an inorganic hybrid pigment thereof as a coloring component, and are matched with a modified synthetic silicate protective glue solution (with the dosage of 1%-3%). The thickness of a dry film of the surface coating is 250-500 microns, the film is formed at one time, and a surface coating is not needed. The VOC of the coating is smaller than or equal to 9 g / L, and delta Elt is obtained after QUV aging is conducted for 4000 h; the color particle has the advantages that the contact angle is up to 96-99 degrees, the stain resistance is less than or equal to 4.8%, and the color particle is stable to store. The invention has the advantages of super weather resistance, high color retention, strong self-cleaning property, real stone texture, simplicity and convenience in construction and the like, and is suitable for stone-like decoration of high-end building outer walls.

Provided are: polymer fine particles having a number-basis average particle diameter of 50 to 450 nm and a number-basis particle diameter CV of 5% or less; or polymer fine particles that have structural coloration properties when in an ordered arrangement. The acid value of the polymer fine particles is 5 to 38 mgKOH / g. Also provided is an emulsion in which polymer fine particles are dispersed in a medium that is primarily water. Also provided is a structure in which polymer fine particles are in an ordered arrangement and generate a color.

The invention relates to the technical field of coating preparation, in particular to a preparation method of a functional exterior wall multicolor coating, which comprises the following steps: preparing a base material, preparing color particles, preparing a protective glue solution, and mixing and forming. According to the invention, the modified styrene-acrylic emulsion has excellent film-forming property and elasticity by introducing a functional monomer and optimizing a polymerization process, and the weather resistance and the compatibility with other emulsions and assistants are remarkably improved; after a modified pigment used by the color paste is modified by a silane coupling agent, the surface of the modified pigment is grafted with an organic group, so that the dispersion stability of the modified pigment in the color paste is enhanced, the particle size of color particles is more uniform, the interface bonding force with a base material and a protective glue solution is improved, and the fading resistance and the aging resistance of the color particles are enhanced by virtue of the weather resistance of silane groups; the modified hydroxyethyl cellulose retains good water retention and thickening performance, and at the same time, the compatibility and synergistic effect with the modified styrene-acrylic emulsion, color particles and other auxiliaries are enhanced through groups introduced by modification, so that a coating film forms a more compact and firmer combined structure.

The application discloses a water-based polyurethane metal color-shifting paint, and preparation raw materials include, in weight parts, 20-40 parts of acrylic acid dispersion, 25-45 parts of acrylic emulsion, 0.1-1 part of dispersant, 0.1-1 part of color-shifting powder, 5-15 parts of film-forming aid, 1-10 parts of color paint aid, and 15-30 parts of deionized water. The application reduces the cost of the two-component polyurethane metal color-shifting paint, improves the net profit of enterprises, solves the problem of particle formation caused by poor arrangement of color-shifting powder in the coating construction process, improves the construction efficiency, and improves the construction window without affecting the paint film state after spraying varnish on the surface.

To provide a coated article having excellent feeling of depth in color, and a method for producing the article.SOLUTION: A coated article comprises an object to be coated and a multilayer coating film, and the multilayer coating film comprises a photoluminescent coating film including photoluminescent pigment and a colored coating film including coloring pigment and a clear coating film, where a ratio (L*15 / L*110) between lightness L*15 based on spectral reflectance in which light I45 irradiated on a surface of the multilayer coating film from the angle of 45 degrees is received at the angle of 15 degrees to specular reflection light, and lightness L*110 based on spectral reflectance in which the light I45 is received at the angle of 110 degrees to specular reflection light is 5 or more and 9 or less, and a ratio (C*15 / C*110) between chroma C*15 in the L*C*h color system based on spectral reflectance in which the light I45 is received at the angle of 15 degrees to specular reflection light, and chroma C*110 in the L*C*h color system based on spectral reflectance in which the light I45 is received at the angle of 110 degrees to specular reflection light is 8 or more and 12 or less.SELECTED DRAWING: Figure 1

The invention provides a preparation method of a continuous-phase pure acrylic emulsion. Raw materials for preparing the continuous-phase pure acrylic emulsion comprise an acrylate monomer, unsaturated organic acid and a functional monomer. The acrylate monomer comprises a long-chain acrylate monomer and a short-chain acrylate monomer; the preparation method of the continuous-phase pure acrylic emulsion comprises the following steps: S1, preparing a pre-emulsion A and a pre-emulsion B, wherein the pre-emulsion A comprises an acrylate monomer, unsaturated organic acid and a functional monomer; the pre-emulsion B comprises an acrylate monomer and a functional monomer; wherein in the raw materials for preparing the pre-emulsion A, the ratio of the acrylate monomer to the unsaturated organic acid is (3-5): 1 according to the mass ratio; the proportion of the unsaturated organic acid for preparing the pre-emulsified liquid A is not less than 90% in all the unsaturated organic acids contained in the raw materials for preparing the continuous-phase pure acrylic emulsion according to the mass percent; s2, under the condition that the temperature is 80-90 DEG C, the pre-emulsion A is subjected to a polymerization reaction, and a nuclear layer reaction solution is prepared; and then adding the pre-emulsified liquid B into the nuclear layer reaction liquid to carry out polymerization reaction. The continuous-phase pure acrylic emulsion prepared by the preparation method is suitable for being prepared into a multicolor coating with dispersed-phase base paint, and the obtained multicolor coating has relatively good heat storage stability, low-temperature storage stability and relatively high viscosity.

Provided is a polymerizable composition for an optical article, said composition including a photochromic compound and two or more (meth)acrylates. The two or more (meth)acrylates include at least a polyfunctional (meth)acrylate having a molecular weight of 500 or more and containing a polyalkylene glycol moiety, and the content of (meth)acryloyl groups in the polymerizable composition for an optical article is 3.50 mmol / g or more.

The present invention relates to, a curable photochromic composition that includes: (a) a photochromic compound; (b) a hydrazide functional material having at least two hydrazide groups that are reactive with carbonyl groups selected from ketone groups and aldehyde groups; (c) a first carbonyl-functional component including a (meth)acrylate polymer having at least two carbonyl groups that are reactive with hydrazide groups; and (d) at least one of, (d1) a second carbonyl-functional component having at least one carbonyl group that is reactive with hydrazide groups, and / or (d2) a non-reactive component. The non-reactive component is free of functional groups that are reactive with the hydrazide functional material, the first carbonyl-functional component, and the second carbonyl-functional component. The present invention also relates to an article that includes: a substrate; and a photochromic layer over at least one surface of the substrate, where the photochromic layer is formed from the curable photochromic composition of the present invention.