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150results about "Multicolor effect coatings" patented technology

Preparation method and apparatus for inorganic multi-color coating, and use

The present invention relates to the technical field of inorganic multi-color coatings, and specifically relates to a preparation method and apparatus for an inorganic multi-color coating, and a use. The preparation method comprises the following raw materials: base paint: water, cellulose, a defoaming agent, a dispersing agent, a wetting agent, a luminescent material, an inorganic hybrid emulsion, an odorless pH regulator, and a bactericide; granulation liquid: water, a bactericide, xanthan gum, protective colloid powder, an odorless pH regulator, nanocellulose, and a defoaming agent; and a continuous phase emulsion: an inorganic hybrid emulsion, a bactericide, inorganic gel, deionized water, an odorless pH regulator, a thickening agent, and a defoaming agent. In the present invention, a mixture of CaAl2O4 calcium aluminate and BaAlO4 barium aluminate is added to serve as a luminescent material, the luminescent material can absorb and store solar energy by means of a specific mode when exposed to sunlight during the daytime, and at night, the internally stored energy is converted into optical radiation to be released, thereby realizing a light-emitting effect and realizing the luminous function of the coating.
Owner:HUBAO NEW MATERIAL TECH SHANGHAI CO LTD

Three-Dimensional Structured Ferrous Phosphate Pigment with Corrosion Early Warning Capability and Preparation Method Therefor

The present solution provides a preparation method for a three-dimensional structured ferrous phosphate pigment with corrosion early warning capability, including following steps: preparing a ferrous ion-containing solution for providing ferrous ions, where the ferrous ion-containing solution includes a soluble ferrous salt and a surfactant but no oxidizing ions, and the ferrous ion-containing solution is maintained in an acidic environment; preparing an initial mixed solution for providing phosphate ions and ammonium ions; and performing ultrasonic refinement, heating, and holding on the intermediate mixed solution using an auxiliary device with ultrasonic oscillation and microwave heating functions to obtain a final mixed solution; and filtering out precipitates from the final mixed solution, and then transferring the precipitates to a vacuum environment for high-temperature heating treatment to obtain a three-dimensional structured ferrous phosphate pigment with corrosion early warning capability.
Owner:LANXI MAGNESIUM MATERIALS RESEARCH INSTITUTE

Polyurethane coating with sufficient tack-free dryness and preparation method therefor

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.
Owner:NALINWAY NANO TECHNOLOGY (SHANGHAI) CO LTD

Tungsten oxide quantum dot-metal nanomaterial photochromic composite film and preparation method thereof

The invention provides a tungsten oxide quantum dot-metal nano material photochromic composite film and a preparation method thereof. A metal nano material and tungsten oxide quantum dots are uniformly compounded by utilizing a water-soluble high polymer material. And the tungsten oxide quantum dot-metal nanomaterial photochromic composite film with more excellent photochromic performance than tungsten oxide is prepared. According to the tungsten oxide quantum dot-metal nano material photochromic composite film, the photochromic fading time is shortened to be within 2 hours, and the light modulation amplitude is gt; and the film has self-supporting performance. Compared with the prior art, the method for preparing the tungsten oxide quantum dot-metal nano material photochromic composite film is simple in process, controllable in process, free of expensive equipment and raw materials, good in process stability, high in yield and high in yield. The prepared tungsten oxide quantum dot-metal nano material photochromic composite film can be applied to any glass or resin substrate.
Owner:SHANGHAI UNIV

Colored radiation refrigeration coating as well as preparation method and application thereof

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.
Owner:INNOVATION CENTER OF YANGTZE RIVER DELTA ZHEJIANG UNIVERSITY

Self-adaptive thermochromic super-hydrophobic self-cleaning radiation cooling coating as well as preparation method and application thereof

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.
Owner:SHENZHEN UNIV

Method for forming a glossy multi-layer coating film

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
Owner:KANSAI PAINT CO LTD

Article with curved patterns formed of aligned pigment flakes

In a printed article, pigment flakes are magnetically aligned so as to form curved patterns in a plurality of cross-sections normal a continuous imaginary line, wherein radii of the curved patterns increase along the imaginary line from the first point to the second point. When light is incident upon the aligned pigment flakes from a light source, light reflected from the aligned pattern forms a bright image which appears to gradually change its shape and move from one side of the continuous imaginary line to another side of the continuous imaginary line when the substrate is tilted with respect to the light source.
Owner:VIAVI SOLUTIONS INC(US)

Multicolor laser film and processing method thereof

The invention discloses a multicolor laser film and a processing method thereof. The multicolor laser film comprises a coating and a carrier layer, multiple color areas are formed on the coating through laser, and limpid laser of the multiple color areas exists on the same coating to form a multi-color laser layer; the thickness of the multi-color laser layer is between 0.8 mu m and 2 mu m; a vacuum aluminum plating layer is arranged on the back surface of the coating of the multi-color laser layer; the vacuum aluminum-plated layer can be transferred or compounded on the carrier layer at one time through the adhesive layer, so that the whole structure presents a multi-color laser pattern; and the base film is adhered to the top surface of the multi-color laser layer and can play a role in protecting the surface of the multi-color laser layer. By adopting the arrangement, the multicolor laser film has the advantages of high precision and paper cost saving, and paper damage can be reduced during processing.
Owner:FOSHAN NAN HAI DISTRICT SANJIAN PACKING CO LTD

Single-component sea gray water-based camouflage coating and preparation method thereof

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.
Owner:NANJING XINGYUANYUAN NEW MATERIAL TECH CO LTD

Multilayer coating film, coated article, and method for producing coated article

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
Owner:NIPPON PAINT AUTOMOTIVE COATINGS

Coating composition and method for producing coating composition

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.
Owner:NIPPON PAINT AUTOMOTIVE COATINGS

Spiropyran derivatives, color-changing glass paint, and preparation method and application thereof

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.
Owner:GUANGZHOU KEHAN INDUSTRIAL CO LTD

Tungsten oxide paint for electrochromic element, tungsten oxide thin film, and dimming member

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.
Owner:NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE & TECHNOLOGY +1

Painting method for the exterior surface of residential concrete foundations

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
Owner:KANSAI PAINT CO LTD

Metal-effect pigment-free radar-compatible coating on substrate

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.
Owner:SUSONITY COMMERCIAL GMBH

A multi-colored thick paste inorganic workshop pre-coating primer and preparation method thereof

The present invention discloses a multi-colored, high-build, inorganic workshop pre-coat primer, comprising the following ingredients: 35-40 parts by weight of a water-based inorganic resin, 25-35 parts by weight of a zinc binder, 5-10 parts by weight of an inorganic nano-color paste, 25-35 parts by weight of a functional filler, 0.5-1 parts by weight of a dispersant, 0.2-0.5 parts by weight of a defoamer, and 0.5-1 parts by weight of a wetting agent. The present invention also discloses a method for preparing the multi-colored, high-build, inorganic workshop pre-coat primer. Compared to the prior art, the present invention can achieve a richer color palette.
Owner:HUBEI BASTER TECHNOOGY CO LTD

Radar-transparent high-luminance silver coating, and preparation method therefor and use thereof

Disclosed in the present invention are a radar-transparent high-luminance silver coating, and a preparation method therefor and the use thereof. The high-luminance silver coating comprises: at least one aluminum pigment, with the weight percentage thereof being less than or equal to 1.5%; at least one silver pearlescent pigment, with the weight percentage thereof being 0.5-4.0%; and a solvent-type base material having a high content of an orienting agent, wherein the weight percentage of the effective content of the orienting agent in the solvent type base material is greater than 5%. In the present invention, a low addition amount of the aluminum pigment is used in combination with the silver pearlescent pigment having high covering properties to prepare the radar-transparent high-luminance silver coating in a base material system having a high content of the orienting agent; an increment in radar transmission loss caused by the silver coating is less than 0.5 dB, the optimal L15° is greater than 140, and the silver coating can also have good angle-dependent color shifting performance, flickering properties and covering power, and obvious metallic appearance; and the silver coating is expected to be applied to usage scenarios having requirements for both silver appearance and radar signal transparency.
Owner:NIPPON PAINT CHINA

A structural color material that changes color according to light source characteristics and its preparation method

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.
Owner:SUN YAT SEN UNIV

Black electrochromic material and method for manufacturing same, paint and method for manufacturing same, mixed paint and method for manufacturing same, color-variable electrode and method for manufacturing same, and electrochromic element

To provide an electrochromic material and a method for producing the same, which are used in a coating material that exhibits reversible color change between black and transparent, as well as a coating material and a mixed coating material containing the electrochromic material and methods for producing the same, a color-variable electrode, and an electrochromic device. [Solution] A black electrochromic material that reversibly changes color between black and transparent through an electrochemical redox reaction, comprising one or more nanoparticles selected from the group consisting of copper oxide nanoparticles that are heat-treated products of basic copper carbonate, titanium oxide nanoparticles, titanium nitride nanoparticles, nickel oxide nanoparticles, nickel hydroxide nanoparticles, zirconium oxide nanoparticles, and metallic iridium nanoparticles.
Owner:NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE & TECHNOLOGY

Color enhancement utilizing up converters and / or down converters

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.
Owner:IMMUNOLIGHT LLC

Optical variable pigment, method for preparing the same, and use thereof

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.
Owner:HEYUAN CITY WINGART ENTERPRISES CO LTD

Stretchable PET color-changing film and production process thereof

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.
Owner:佛山市亿欧新材料有限公司

Coated product and method for manufacturing same

Provided are a coated article having superior sense of color depth and a method for producing the same. A coated article including an article to be coated and a multilayer coating film, wherein the multilayer coating film includes: a glitter coating film including a glitter pigment; a colored coating film including a coloring pigment; and a clear coating film, a ratio (L*15 / L*110) of a lightness L*15 based on a spectral reflectance attained when light I45 applied at an angle of 45 degrees with respect to a surface of the multilayer coating film is received at an angle of 15 degrees with respect to regularly-reflected light to a lightness L*110 based on a spectral reflectance attained when the light I45 is received at an angle of 110 degrees with respect to regularly-reflected light is 5 or more and 9 or less, and a ratio (C*15 / C*110) of a chroma C*15 in the L*C*h color system based on a spectral reflectance attained when the light I45 is received at an angle of 15 degrees with respect to regularly-reflected light to a chroma C*110 in the L*C*h color system based on a spectral reflectance attained when the light I45 is received at an angle of 110 degrees with respect to regularly-reflected light is 8 or more and 12 or less.
Owner:MAZDA MOTOR CORP +1

High-gloss mirror-finish stone-like multi-color paint and preparation method thereof

The application belongs to the technical field of building coating, and particularly discloses a high-light mirror surface stone-imitating multi-color coating and a manufacturing method thereof. The high-light mirror surface stone-imitating multi-color coating comprises a hydrophobic modified acrylic acid ammonium salt polymer, a high-light silicone acrylic emulsion, magnesium lithium silicate, cellulose, and an auxiliary agent, etc. The hydrophobic modified acrylic acid ammonium salt polymer is obtained by copolymerization of acrylic ester and acrylic acid ammonium salt, and has excellent hydrophobic effect; the magnesium lithium silicate and cellulose have a synergistic effect, so that the finished product has excellent toughness while the color points are in the form of flakes. Compared with the prior art, the coating has improved gloss, flatness and water resistance, and excellent mirror surface stone-imitating effect is obtained.
Owner:ANHUI JIABAOLI TECH MATERIALS CO LTD

A thermally crosslinkable high-transparency electrochromic polymer, an electrochromic polymer film and a preparation method thereof

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.
Owner:ZHEJIANG UNIV OF TECH

A kind of colored rock flakes and lightweight self-repairing real stone paint

The present invention relates to a colored rock flake and a lightweight self-repairing true stone paint, wherein the colored rock flake comprises the following components in parts by weight: 40-60 parts by weight of an elastic emulsion, 5-10 parts by weight of a self-repairing mesoporous silica, 5-10 parts by weight of a pigment and filler, and 1-10 parts by weight of a color paste; the self-repairing mesoporous silica comprises mesoporous silica and a repairing agent loaded on the mesoporous silica. The lightweight self-repairing true stone paint comprises the following components in parts by weight: 14-26 parts by weight of an emulsion, 2-5 parts by weight of a modified bentonite, 2-6 parts by weight of a colored rock flake provided by the present invention, and 20-50 parts by weight of colored sand. The colored rock flake is used in the lightweight self-repairing true stone paint, can automatically sense changes in external microenvironmental stress, release a repairing agent, and complete the repair of the damaged part; at the same time, the colored rock flake replaces part of the colored sand, has an excellent decorative effect, and makes the lightweight self-repairing true stone paint itself lighter, and the consumption also becomes lower.
Owner:ASIA CUANON TECH SHANGHAI +1

Photochromic hydroxyurethane compounds

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.)
Owner:TOKUYAMA CORP

Tungsten oxide paint for electrochromic elements, tungsten oxide thin film and dimming material

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.
Owner:NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE & TECHNOLOGY +1

Reversible photochromic silver nanocluster-based composite coating as well as preparation method and application thereof

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.
Owner:NINGXIA UNIVERSITY