2491results about "Radiation-absorbing paints" patented technology

Compositions for use in ink jet printing onto a substrate comprising a water based dispersion including metallic nanoparticles and appropriate stabilizers. Also disclosed are methods for the production of said compositions and methods for their use in ink jet printing onto suitable substrates.

To provide an infrared-shielding body sufficiently transmitting visible rays, having no half-mirror shaped appearance, requiring no large-scale apparatus when forming a film on a substrate, efficiently shutting invisible near-infrared rays with wavelength range of 780 nm or more, while eliminating a heat treatment at high temperature after film formation, and having a spectral characteristic such as transparency with no change of color tone. The starting material, which is a mixture containing a predetermined amount of a tungsten compound, is heated at 550° C. in a reductive atmosphere for 1 hour, then cooled to room temperature once in an argon atmosphere, thus producing powder of W₁₈O₄₉. Then, the powder, the solvent, and the dispersant are mixed, then subjected to dispersion treatment to obtain a dispersion solution. The dispersion solution and a UV-curable hardcoat resin are mixed to obtain a solution of fine particle dispersion of infrared-shielding material. The solution of the fine particle dispersion of infrared-shielding material is applied on a PET resin film to form a film, which is then cured, and an infrared-shielding film having a transmission profile shown in the figure is thereby obtained.

A solution for forming a film having a high transmittance and a low reflectivity for visible light, a low transmittance for near infrared radiation, and a surface resistivity of at least 106 ohms/square. It contains fine particles of a hexaboride of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Th, Dy, Ho, Er, Tm, Yb, Lu, Sr or Ca, and fine particles of ITO or ATO in a weight ratio of from 0.1:99.9 to 90:10. Also disclosed is a film formed on at least one side of a resin film as a base, for cutting off solar heat radiation.

The invention relates to the field of electromagnetic wave shielding, in particular to a composite coating electromagnetic shielding paint and a composite coating electromagnetic shielding material prepared therefrom. The composite coating electromagnetic shielding paint comprises a conducting layer paint with a reflection function and a wave-absorbing layer paint with an absorption function, wherein the reflecting layer paint comprises the components of polymer emulsion, a conducting filler, a coupling agent, a defoaming agent, a wetting agent, a film forming assistant, a thickening agent and water; and the wave-absorbing layer paint comprises the components of polymer emulsion, a wave-absorbing filler, a coupling agent, a defoaming agent, a wetting agent, a film forming assistant, a thickening agent and water. The invention also discloses a composite coating electromagnetic shielding material prepared by coating the paint. The material is prepared by the steps of firstly coating the conducting layer paint on the surface of a base material, drying, then coating the wave-absorbing layer paint and the like. In the invention, the electromagnetic shielding material prepared by using the mode of compounding the wave-absorbing layer with the reflecting layer effectively reduces secondary pollution caused by the reflection of electromagnetic radiation and has wider shielding wave band in comparison to a pure wave absorbing coating; and the use of water emulsion reduces the production of harmful volatile matters and guarantees body safety.

Anti-reflective coating materials for ultraviolet photolithography include at least one absorbing compounds and at least one pH tuning agent that are incorporated into spin-on materials. Suitable absorbing compounds are those that absorb around wavelengths such as 365 nm, 248 nm, 193 nm and 157 nm that may be used in photolithography. Suitable pH tuning agents not only adjust the pH of the final spin-on composition, but also influence the chemical performance and characteristics, mechanical performance and structural makeup of the final spin-on composition that is part of the layered material, electronic component or semiconductor component, such that the final spin-on composition is more compatible with the resist material that is coupled to it. More specifically, the pH tuning agent strong influences the polymeric characteristics, the structural makeup and the spatial orientation that results in increasing the surface properties of the anti-reflective coating for optimal resist performance. In other words, a pH tuning agent that merely adjusts the pH of the spin-on material without influencing the mechanical properties and structural makeup of the spin-on composition or the coupled resist material is not contemplated herein. A method of making absorbing and pH tuned spin-on materials includes combining at least one organic absorbing compound and at least one pH tuning agent with at least one silane reactant during synthesis of the spin-on materials and compositions.

A protective film agent for laser dicing according to the present invention comprises a solution having, dissolved therein, a water-soluble resin and at least one laser light absorber selected from the group consisting of a water-soluble dye, a water-soluble coloring matter, and a water-soluble ultraviolet absorber. The protective film agent is coated on a surface of a wafer, which is to be processed, and is then dried to form a protective film. Laser dicing through the protective film produces chips from the wafer. As a result, deposition of debris can be effectively prevented on the entire face of the chips, including their peripheral edge portions.

The invention relates to a method for preparing a solar selective heat absorbing paint by using a spinel type pigment as a light absorbent, which belongs to the field of solar heat utilization. The method comprises the steps of uniformly dispersing a nanoscale spinel type pigment as well as resin, a solvent and auxiliaries by using a ball milling method; and then adding a curing agent to obtain the solar selective heat absorbing paint. It is shown in the experiment that the paint is uniformly coated on a metal substrate by using a spraying method; and the solar selective heat absorbing paint obtained after being cured at room temperature shows higher solar energy absorption rate (0.93-0.95) and lower emissivity (0.18-0.30); and the photothermal conversion efficiency of a solar heat collector can be effectively improved; moreover, the coating has the advantages of good mechanical property, stronger weather resistance and service life of more than 45 years.

The invention discloses a graphene/nano ferrite based water electromagnetic shielding paint and a preparation method thereof. Ferrite nanoparticles are loaded on the surface of graphene to prepare a graphene/ferrite nanocomposite with the electrical conductivity of the graphene and the good magnetic property of the nano ferrite, and then the nanocomposite is combined with a water film-forming resin and other auxiliaries to prepare the green and environment-friendly water electromagnetic shielding paint. The preparation method has the characteristics of being simple to operate, high in practicability, free of hazardous substance, capable of making electromagnetic shielding paints suitable for different frequencies and occasions, good in shielding effect, and the like; the prepared graphene/nano ferrite based water electromagnetic shielding paint has excellent electromagnetic shielding performance, and therefore has good application prospect in the field of electromagnetic shielding paints.

A coating composition includes a material adapted to form a coating; and a material that fluoresces when exposed to U.V. light or the material adapted to form a coating contains a U.V. blocker disposed on a U.V. indicator. A kit containing a U.V. indicator and material adapted to form a coating containing a U.V. blocker. Methods of coating a substrate with the coating compositions are also disclosed.

A light-blocking article is designed to be lightweight but effective to block most incident actinic radiation and can be designed into fabrics, curtains, and other materials. Such an article has an opacifying layer that is capable of blocking predetermined electromagnetic radiation. The article contains (a) porous particles comprising a continuous polymeric binder and pores within the continuous polymeric binder, the porous particles having a glass transition temperature of at least 25° C. and a mode particle size of at least 2 μm and up to and including 50 μm. The article also contains an opacifying colorant that absorbs the predetermined electromagnetic radiation (such as within 400 nm to 700 nm), in an amount of at least 0.001 weight % based on the total dry weight of the opacifying layer, and a matrix polymer in which the porous particles and opacifying colorant are dispersed.

High friction and radar attenuating coating formulations are provided and include a resin matrix, a particulate friction additive dispersed in the resin matrix in an amount sufficient to achieve a minimum coefficient of friction according to MIL-PRF-24667B(SH), and a particulate dielectric filler dispersed in the resin matrix in an amount sufficient to achieve a permitivitty (∈′) of less than about 10 and a loss tangent (tan δ) of less than about 0.05. A substrate surface may be coated with the coating formulation so as to provide a topcoat layer thereon. The topcoat layer may thus be applied directly onto the substrate surface. Alternatively, the coating formulation is present as a topcoat layer component of a coating system on the substrate which further comprises an intermediate layer interposed between the topcoat layer and a surface of the substrate and/or a primer layer coated directly onto the surface of a substrate between the topcoat layer and the substrate. In some embodiments, the coating formulation is applied so as to form a series of substantially parallel ridges having a predetermined directional orientation. In certain preferred embodiments, the coating formulation is applied to a block area on the substrate surface comprised of plural areal regions, wherein the directional orientation of the substantially parallel ridges of one areal region are angularly biased with respect to the directional orientation of the substantially parallel ridges of an adjacent areal region.

The present invention provides a hard coat agent composition that is useful for forming a hard coat layer with excellent anti-staining properties and lubricity, as well as superior scratch resistance and abrasion resistance, on the surfaces of various articles. The present invention also provides an optical information medium using the above hard coat agent composition. A hard coat agent composition comprising a fluorine-containing polyether compound (A) comprising an active energy ray-reactive group, and a curable compound (B) comprising two, or three or more active energy ray-polymerizable groups within each molecule. An optical information medium comprising a film element composed of one or more layers including at least a recording layer (4) or a reflective layer, on a supporting substrate (20), wherein at least one of the supporting substrate (20)-side surface and the film element-side surface is formed of a hard coat layer (8) comprising a cured product of the hard coat agent composition.

Disclosed herein are a top anti-reflective coating polymer used in a photolithography process, a method for preparing the anti-reflective coating polymer, and an anti-reflective coating composition comprising the anti-reflective coating polymer. The disclosed top anti-reflective coating polymer is used in immersion lithography for the fabrication of a sub-50 nm semiconductor device. The top anti-reflective coating polymer is represented by Formula 1 below:

wherein R1, R2 and R3 are independently hydrogen or a methyl group; and a, b and c represent the mole fraction of each monomer, and are in the range between 0.05 and 0.9. The top anti-reflective coating formed using the anti-reflective coating polymer is not soluble in water and can be applied to immersion lithography using water as a medium for a light source. Since the disclosed top anti-reflective coating can reduce the reflectance from an underlayer, the uniformity of CD is improved, thus enabling the formation of an ultrafine pattern.

Foamable aqueous compositions can be used to form light-blocking and light-colored foamed, opacifying elements with one or more dry foamed layers. The compositions contain: (a) 0.05 to 20 weight % of porous particles comprising a continuous polymeric phase and a first set of discrete pores, the porous particles having a mode particle size of 2 to 50 μm; (b) at least 20 weight % of a binder material (that can be curable); (c) 0.1 to 30 weight % of one or more additives including dispersants, plasticizers, inorganic or organic pigments or dyes, thickeners, flame retardants, biocides, fungicides, optical brighteners, tinting colorants, metal flakes, and inorganic or organic fillers; (d) water; and (e) at least 0.001 weight % of an opacifying colorant different from (c), which opacifying colorant absorbs electromagnetic radiation. The foamable aqueous composition can be aerated, disposed on a porous substrate, dried, and crushed on that porous substrate.

The invention discloses a preparation method for a foam aluminum alloy-based wave absorbing material and includes the steps of a surface pretreatment of the foam aluminum alloy material, a preparation of wave absorbing agent material and a spraying of the foam aluminum alloy material; the preparation method of the invention is characterized in that the foam aluminum alloy material through degreasing and sand spraying treatments is took as a basic body, and a single wave absorbing material or compound wave absorbing materials are coated on the surface of the basic body to prepare a foam aluminum alloy-based absorbing material of single wave absorbing agent or foam aluminum alloy-based absorbing material of compound wave absorbing agent. The product of the invention provides a new thought for a development of wave absorbing material, and a new field for the popularization and application of foam metal materials and establishes theory and technique foundations for the developing of porous material-based wave absorbing materials.

A method of producing a near-infrared ray absorbing material comprising the steps of: applying a coating liquid of a near-infrared ray absorbing layer comprising a near-infrared ray absorbing dye and a latex onto a support to form a coated layer; and drying the coated layer by heat to form a near-infrared ray absorbing layer, wherein the near-infrared ray absorbing layer absorbs not less than 60% of a total amount of near-infrared rays having wavelengths of 800 to 1000 nm.

A coating composition suitable for producing coatings that are transparent to infrared radiation and can exhibit color stability, such as a jet black color. The coating compositions include a first tint having a low haze and a second tint having a high haze. The tints include visibly absorbing infrared transparent pigments.

The invention discloses a nano-glass heat insulation paint and a preparation method thereof, belonging to the field of paint. The paint comprises component A and component B, wherein the polyalcohol component A is formed by mixing waterborne polyurethane and nano antimony tin oxide slurry according to the mass ratio of 4: 1-1: 1; curing agent is isocyanate curing agent; the mass ratio between thecomponent A and the component B is 10: 1; in the polyalcohol component A, the nano antimony tin oxide slurry is prepared by taking mixture of nano antimony tin oxide, water and absolute ethyl alcohol(mixing according to the volume ratio of 1: 1), and polymer anion dispersing agent as raw materials, and has the solid content of 20%; and the nano-glass heat insulation paint is prepared by taking the waterborne polyurethane, the nano antimony tin oxide slurry, the water, adhesive force accelerating agent, wetting agent, flatting agent, thickening agent, defoaming agent and the isocyanate curingagent as raw materials. The invention has the advantages of simple paint preparation, low cost, good heat insulation property, being environment-friendly and safe, and the like.

The invention belongs to the technical field of nano coatings, and particularly relates to a water-based nano heat insulating coating used for glass. The water-based nano heat insulating self-cleaning coating used for glass consists of the following components by weight: 45-55 portions of high molecular resin, 5-15 portions of nano ATO slurry, 0.1-1 portion of crosslinking agent, 0.1-0.8 portion of ultraviolet absorber and 5-10 portions of ethanol. The invention aims at overcoming the disadvantages in the prior art, and provides a heat insulating coating used for glass which has excellent heat insulating performance and transparency, weather resistance, simple and feasible production process, convenient construction and low production cost and a preparation method thereof.

The invention describes a polymer that is composed of a fluoropolymer modified with a UV absorber. The UV absorber is grafted to the polymeric backbone of the fluoropolymer. Optionally, a HALS can also be grated to the polymeric backbone of the fluoropolymer. Incorporation or the absorber or stabilizer helps to reduce degradation of underlying layers such as an encapsulant while still allowing useful light energy to pass through the layers to a device, such as a photovoltaic device.

The invention provides a water-based interior wall thermal insulation nano coating, belonging to the technical field of environment-friendly water-based building energy conservation coating. The coating comprises the following components by weight percentage: 20-40% of emulsion, 20-35% of pigment filler, 5-15% of thermal insulation function material, 0.1-1% of thickening agent, 0.5-2.5% of wetting and dispersing agent, 0.1-0.6% of defoaming agent, 0.4-2.5% of anti-creaming agent, and the balance water. Due to containing no organic matters with large volatility, the coating in the invention has little toxicity and is favor to environment protection. The adopted pigment filler in the invention is nano-level or superfine magnesium carbonate or magnesium silicate, thus greatly improving the surface area of the pigment, and increasing gaps among coating particles by a large margin, thereby enhancing the thermal separation property of the coating. The water-based interior wall thermal insulation nano coating provided in the invention has obvious radiative thermal insulation and separation type thermal insulation effects, and has simple preparation process and wide application.

The invention relates to an aqueous self-cleaning transparent heat-insulated nano-dope capable of fully shielding infrared ray and ultraviolet ray and a preparation method. The dope comprises the following components in percentage by weight: 30%-70% of film-forming resin, 5%-30% of nano-ATO dispersion, 1%-10% of nano-LaB6 dispersion, 1%-15% of nano-WO3 dispersion, 5%-15% of co-solvent, 2%-10% of film-forming assistant, 0.5%-5.0% of assistant and 5%-25% of deionized water. The preparation method comprises the following steps of: dropping the nano-ATO dispersion, the nano-LaB6 dispersion and the nano-WO3 dispersion into aqueous fluorocarbon resin while stirring, stirring for 30-40 min, orderly adding antifoaming agent, wetting agent, the film-forming assistant, thickening agent and accelerating agent, stirring the solution to obtain the self-cleaning transparent thermal-insulation nano-dope. The dope is applied to the surfaces of cement, an automotive glass and a building glass, has self-cleaning function, can fully shield the infrared ray and ultraviolet ray and has obvious thermal-insulation performance.