67 results about "Uv blocking" patented technology

A protective lens stack comprises a base layer including a polyethylene terephthalate (PET) film containing a UV blocking additive and one or more removable lens layers stacked on top of the base layer. Each of the removable lens layers may include a PET film and a first adhesive disposed on a bottom surface of the PET film. Refractive indices of the base layer and the one or more removable lens layers may be matched to within 0.2. Each layer of the protective lens stack, including the base layer and each of the removable lens layer(s), may have less than 0.5% haze. The protective lens stack may be used as a face shield or may be surface mountable using a second adhesive disposed on a bottom surface of the PET film containing the UV blocking additive.

The embodiments aim to provide a polyamide-imide-based film, which comprises a polyamide-imide-based polymer that is free of fluorine atoms and which has a modulus of 5 GPa or more based on a film thickness of 50 μm, whereby it is excellent in optical properties, mechanical properties, and ultraviolet ray blocking rates; a process for preparing the same; and a cover window and a display device comprising the same.

The embodiment aims to provide a polyamide-imide film having excellent optical properties, mechanical properties and UV blocking rate, comprising a polyamide-imide polymer that does not contain fluorine atoms and having a modulus of 5 GPa or more based on a film thickness of 50 μm, a method for manufacturing the same, and a cover window and a display device including the same.

A method for preparing a contact lens containing an ultraviolet (UV) blocking agent is disclosed. This method comprises (a) polymerizing a monomer mixture containing (i) one or more contact lens forming comonomers and (ii) one or more UV blocking agents containing a phenol group having a protected hydroxyl moiety and one or more ethylenically unsaturated reactive groups to obtain a polymerization product containing one or more UV blocking agents containing a phenol group having a protected hydroxyl moiety, and (b) deprotecting the protected hydroxyl moiety of one or more UV blocking agents of the polymerization product.

The present invention relates to a UV blocking efficacy booster composition comprising a polymer, and a cosmetic composition comprising same. More specifically, by using a polymer as a cosmetic composition additive, a sticky feeling when used may be reduced, skin permeation may be blocked, a high sun protection factor (SPF) may be realized even with a small amount of a UV blocking agent, and the SPF in vivo may be enhanced.

A laminated glazing comprising an UV-control coating disposed on at least a portion of a glass layer is provided. Such UV-control coating has a transmittance of less than 10% at any spectral point when measured in a spectral range from 300 to 400 nm and a TTS no greater than 60%. The UV-control coating provides a filter for UV light in the glazing without the need of any further material within the stack. The UV-control coating also provides additional control for IR light. A roof and a sidelite having such glazing are also disclosed.

This invention belongs to the field of coating technology and discloses an anti-aging radiation-cooling coating, coating layer, and its application and coated products. The radiation-cooling coating of this invention includes a base coat and a top coat; by weight, the base coat includes: 10-80 parts composite reflective particles, 5-20 parts hexagonal boron nitride nanosheets, 5-50 parts film-forming resin, 20-80 parts solvent, 0.05-10 parts dispersant, and 0.1-10 parts curing agent; by weight, the top coat includes: 10-80 parts composite alumina, 5-20 parts fluorosilane-modified silica, 5-60 parts film-forming resin, 20-80 parts solvent, 0.05-10 parts dispersant, and 0.5-30 parts curing agent. The radiation-cooling coating of this invention combines high solar reflectivity, excellent UV blocking properties, and long-term aging resistance, and can inhibit photocatalytic reactions from the source, achieving a balance between high reflectivity and ultra-long weather resistance.

The present invention relates to a high-viscosity or solid topical skin composition having a skin-protective function. A technology has been developed to manufacture a formulation with a texture having high viscosity without using wax or surfactants by utilizing a high-viscosity mixture composed of an ammonium salt and an ammonium salt solvent. When a UV blocking material or an antioxidant material is mixed into this and used as a topical skin preparation, an effect of alleviating light-induced skin damage can be obtained without clogging pores or irritation.

This invention discloses a self-healing polymer material possessing both high visible light transmittance and full ultraviolet light blocking properties, its preparation method, and its applications. The polymer material contains aromatic Schiff base bonds, which are located at any one or more positions among the polymer network crosslinking sites, the polymer backbone, the polymer side chains, and the branched polymer chains. The aromatic Schiff base bonds form a continuous conjugated structure with strong absorption in the 200-400 nm ultraviolet region, thus exhibiting excellent full ultraviolet light blocking properties. Furthermore, the aromatic Schiff base bonds show no absorption in the 500-800 nm visible light region, and the polymer material is amorphous and non-crystalline, thus also possessing high visible light transmittance. The polymer material achieves a transmittance of over 90% at a visible light wavelength of 550 nm and a UV blocking rate of 100% in the 200-400 nm ultraviolet region. Since the aromatic Schiff base bonds are dynamic covalent bonds, the polymer material also possesses solvent-assisted room-temperature self-healing capabilities.

This utility model relates to a cooling and UV-resistant jacquard knitted fabric and garment. The front of the fabric consists of alternating concave and convex stripes, each made of 40D / 24F polyethylene nylon core yarn and 20-50D spandex. The knitting pattern is four loops per cycle, with the first four loops using the polyethylene nylon core yarn and spandex. The concave stripes are formed by loops knitted by the first needle of each of the first four loops. The convex stripes are formed by loops knitted by the second and third needles of the first and second loops, respectively, followed by float knitting, and by the second and third needles of the third and fourth loops, respectively, followed by float knitting and loop knitting. Through the combination and loop-forming method of the functional yarns—polyethylene nylon core yarn and high-elastic spandex—the fabric achieves a cooling sensation and highly effective UV blocking across the entire wavelength range, while also possessing breathability, high elasticity, and comfort.

This invention discloses a glass composition comprising: 65-79 mol% SiO2; 4-13.5 mol% Al2O3; 1.5-4.0 mol% MgO; 1-4 mol% CaO; 0-1.5 mol% ZnO; 4-16 mol% Na2O; 0-5.5 mol% K2O; 0.4-2.5 mol% TiO2; and 0-1.5 mol% CeO2. The glass composition, at a thickness of 50 µm, exhibits a transmittance percentage of 50% in the ultraviolet (UV) wavelength range of 320 nm to 350 nm, and / or a coefficient of thermal expansion (CTE) of 69 × 10⁻⁶ measured at 100°C to 300°C. ‑7 / ℃ to 75 × 10 ‑7 / ℃.

This invention relates to an adaptive radiation-cooling coating, comprising, from the inside out, a high-reflectivity primer layer, a thermochromic intermediate layer, and a semi-transparent topcoat layer with ultraviolet (UV) blocking and radiation-cooling functions; the thermochromic intermediate layer is colored below a set temperature value and colorless above the set temperature value. This invention combines the semi-transparent topcoat with UV blocking and radiation-cooling functions, the thermochromic intermediate layer, and the primer, placing the thermochromic intermediate layer between the transparent topcoat and the primer. This allows it to resist high temperatures and UV radiation in the environment. At low temperatures, the thermochromic intermediate layer forms a colored intermediate layer that absorbs solar wavelengths to increase the coating temperature; at high temperatures, the thermochromic intermediate layer becomes transparent, allowing solar wavelengths to pass through and be reflected by the high-reflectivity primer layer, thereby reducing the temperature of the coating system.

The invention relates to the technical field of functional films, and discloses a composite functional film with high light transmission and UV (ultraviolet) filtering property, which sequentially comprises a base material layer, a bonding layer, a dual-mechanism UV filtering functional layer, a superhard layer and a surface functional layer from bottom to top, the bonding layer is a Cr or Ti layer; the dual-mechanism UV filtering functional layer comprises a disordered multilayer dielectric film and a plasma resonance enhanced absorption layer; the superhard layer is of a three-dimensional interpenetrating network structure formed by a diamond-like carbon phase and hexagonal boron nitride nanosheets; the surface functional layer is a photocatalytic surface functional layer, and the photocatalytic surface functional layer is a TiO2 / SiO2 composite material with a micro-nano hierarchical porous structure. The composite functional film provided by the invention realizes high UV barrier and high light transmission balance, improves the mechanical durability of the film body, and is applicable to multiple scenes.

The utility model discloses an electronic paper diaphragm which comprises a base material layer comprising a first surface and a second surface which are arranged back to back; the anti-dazzle ultraviolet blocking layer is arranged on the first surface; the wear-resistant layer is arranged on one surface, deviating from the base material layer, of the anti-dazzle ultraviolet blocking layer; the water vapor blocking layer is arranged on the second surface; the conductive layer is arranged on one surface, deviating from the base material layer, of the water vapor blocking layer; the bonding layer is arranged between the conductive layer and the water vapor blocking layer; the refractive index of the wear-resistant layer is lower than that of the anti-dazzle ultraviolet blocking layer, so that the wear-resistant layer and the anti-dazzle ultraviolet blocking layer are matched to form an optical anti-reflection structure. According to the electronic paper diaphragm, on the basis that the structure is effectively simplified, the anti-reflection performance and anti-dazzling performance of electronic paper are improved, excellent wear resistance and water vapor barrier performance are guaranteed, cost is low, and universality is high.

The invention belongs to the photovoltaic field, and particularly relates to a composite coating, a photovoltaic module and a preparation method. The composite coating comprises a substrate coating and an ultraviolet blocking layer, the substrate coating comprises a polymer coating material and a first binder; and the ultraviolet blocking layer comprises an ultraviolet blocking material and a second binder. The photovoltaic module comprising the composite coating has the properties of high reliability, high toughness, light weight and weak efficiency attenuation.

The invention discloses a three-dimensional texture super-resolution method and system based on multi-view fusion, and belongs to the technical field of computer graphics, and the method comprises the steps: constructing a standardized view set containing an in-block view for maintaining the texture continuity in UV blocks and a cross-seam view for maintaining the texture continuity between UV blocks; rendering the three-dimensional model at each view angle to obtain a low-resolution image and a current quality image, generating an initial mask through a quality image competition mechanism, and performing regularization processing to obtain a dynamic update mask; inputting the low-resolution image and the dynamic updating mask into a pre-trained local super-division model to execute local super-division to obtain a high-resolution image; and reversely projecting the high-resolution image to the current texture image, carrying out iterative execution until texture image fusion of all visual angles is completed, and outputting a final three-dimensional model high-resolution texture image. According to the method, the high-quality, globally consistent and seamless high-resolution three-dimensional model texture can be generated, and the method is suitable for application scenes with strict requirements on the visual quality of the three-dimensional model.

Multi-layer films, and processes to make the films, that enable the delivery of a substrate featuring a peelable thin layer of low haze, amorphous, isotropic film with the desired properties of high modulus, high usage temperature, UV blockage, and toughness. The films are made using a co-extrusion, co-orientation and annealing process to enable the delivery of a thin isotropic, UV blocking layer on top of a release layer and support substrate. These film constructions can be kept together during additional processing steps such as coating and converting. The release and dimensionally stable substrate layer can be easily removed once processing steps are completed.

The present invention relates to a low-viscosity cosmetic composition for UV blocking. More specifically, the low-viscosity cosmetic composition for UV blocking, of the present invention, comprises both a water-soluble organic UV blocking agent and an oil-soluble organic UV blocking agent, and uses an anionic surfactant, a thickener, and the like, thus enabling the implementation of a sunscreen formulation having excellent stability at low viscosity without phase separation, excellent spreadability, excellent feeling of use, high sun protection factor, light and thin application, and adhesion and non-sticky feel even upon reapplication.

The invention relates to the technical field of optical transparent adhesives, and particularly discloses an anti-dazzle and ultraviolet-blocking vehicle-mounted OCA optical adhesive. Comprising the following raw materials: a monofunctional acrylate monomer with a cyclic structure, a bifunctional acrylate monomer containing a hydrophilic group, a monofunctional short-chain acrylate monomer, an acrylate monomer containing a benzotriazole structure, a hindered phenol antioxidant monomer with an acrylate structure, and a thermal initiator. According to the vehicle-mounted OCA optical adhesive, the vehicle-mounted OCA optical adhesive is prepared from the following raw materials: nano-scale monodisperse crosslinked polystyrene microspheres, an ultraviolet light initiator and an acrylate monomer containing rare earth ions, so that the vehicle-mounted OCA optical adhesive not only has good humidity and heat resistance and high temperature resistance, but also has excellent intrinsic ultraviolet barrier property, oxidation resistance and anti-dazzle property; the strict requirements of vehicle-mounted display on high definition and low glare are greatly met, and the market application prospect is wide.

The invention discloses an in-situ three-color luminous body which comprises a luminous film and excitation light sources, the luminous film comprises a substrate, the top surface of the substrate is coated with an organic long afterglow luminous body, the bottom surface of the substrate is coated with a red phosphor, the excitation light sources comprise a blue light excitation light source and an ultraviolet excitation light source, the substrate is a UV barrier film, and the blue light excitation light source and the ultraviolet excitation light source are arranged on the substrate. The organic long-afterglow luminous body emits blue fluorescence when being excited by the blue light excitation light source and emits green long afterglow after being excited by the blue light excitation light source, and the red fluorophor emits red fluorescence when being excited by the ultraviolet excitation light source. According to the in-situ three-color illuminant, in-situ three-color light emitting is achieved, the in-situ three-color illuminant has high transparency, high flexibility and high resolution, the resolution reaches up to 2540 dpi, the transparency reaches up to 90%, the preparation method is simple, and the cost is low.

The application relates to the technical fields of biological medicine, nanomaterials and food safety, and particularly relates to a preparation method of a Ce6-mediated photodynamic sterilization film and application of the Ce6-mediated photodynamic sterilization film to fresh food preservation. The Ce6-mediated photodynamic sterilization film is prepared by the following method: yttrium nitrate, europium nitrate and bismuth nitrate are dissolved in deionized water, and then mixed with sodium vanadate; the mixed solution is subjected to hydrothermal reaction in a polytetrafluoroethylene reaction kettle; the product after the hydrothermal reaction is mixed with Ce6 and centrifuged to obtain Ce6-mediated nanomaterials; the nanomaterials have photosensitizer activity and can be used for inhibiting bacteria and fungi; the nanomaterials are dissolved in CMC, stirred and dried on a glass plate to obtain the Ce6-mediated photodynamic sterilization film. The Ce6-mediated photodynamic sterilization film generates active oxygen under ultraviolet light and has UV blocking function, can be used for photodynamic antibacterial and fresh food preservation, and realizes the double effects of UV sterilization and food loss prevention.

A protective lens stack comprises a base layer including a polyethylene terephthalate (PET) film containing a UV blocking additive and one or more removable lens layers stacked on top of the base layer. Each of the removable lens layers may include a PET film and a first adhesive disposed on a bottom surface of the PET film. Refractive indices of the base layer and the one or more removable lens layers may be matched to within 0.2. Each layer of the protective lens stack, including the base layer and each of the removable lens layer(s), may have less than 0.5% haze. The protective lens stack may be used as a face shield or may be surface mountable using a second adhesive disposed on a bottom surface of the PET film containing the UV blocking additive.

The present invention relates to smart mirror-coated eyeglasses comprising: eyeglass lenses capable of both a sunglass function and an eyeglass function; and an eyeglass frame equipped with a user tough part, a photodetection part, an electrochromic switching pat for switching between the sunglass function and the eyeglass function, and a function control part for controlling the electrochromic switching part by means of an input of the user touch part and the photodetection part, wherein, by means of the switching operation of the electrochromic switching part at the function control part according to the input of the user touch part and the photodetection part, an electrochromic layer positioned on the back surface of a half mirror layer is discolored into a dark color for a backout background by means of a supply of self-generated electricity of solar cell surface parts, and thus the sunglass function in which a mirrored surface is formed on the front surface of the half mirror layer is manifested on the eyeglass lenses, and according to the electrochromic layer being converted to a transparent color, the eyeglass function in which a transparent window is formed on the front surface of the half mirror layer is manifested on the eyeglass lenses, and thus, unlike conventional discolorable lenses which may be discolored by means of sunlight (ultraviolet rays), the present invention may immediately become regular eyeglasses and also mirrored eyeglasses according to the situation desired by a user regardless of sunlight, and may exhibit an ultraviolet blocking or scattered light blocking effect, and may provide beautiful color and stylishness to a wearer.

According to various embodiments, a server for determining UV blocking efficacy of a product to be tested comprises at least one processor, wherein the at least one processor can perform: an operation for determining, as a first reference amount of light, the amount of UV light to be emitted to a first unapplied sheet that is not applied with the product to be tested; an operation for controlling a UV emission device so that the UV light is emitted to the first unapplied sheet in the first reference amount of light; an operation for acquiring a first non-applied image obtained by imaging the first unapplied sheet; and an operation for determining appropriateness of the first reference amount of light on the basis of the first non-applied image.

The invention relates to the technical field of coating preparation, in particular to an inorganic hybrid ultraviolet barrier coating and a preparation method thereof. According to the coating, inorganic cerium oxide particles are utilized to form a stable ultraviolet absorption and scattering center, multi-point anchoring is combined with a polymer containing phosphonic acid and catechol-epoxy side groups, colloidal silicon dioxide which is diluted by ethanol / water and stably dispersed by regulating the pH is introduced, and finally, after damp-heat re-curing treatment, organic-inorganic phase interface cross-linking integrity is formed, so that the coating is formed. Internal stress and microcracks are remarkably eliminated, so that the surface of the film layer is smoother, the gloss is higher, and the interface bonding is firmer. The obtained coating has high light transmittance, low haze and excellent ultraviolet barrier and adhesion properties, is suitable for flexible display protective films, touch screen cover films and high-barrier optical packaging materials, and has good industrial application value.

This invention discloses an ultraviolet (UV) blocking film, its preparation method, and its application. The UV blocking film of this invention is made from the following raw materials in weight percentages: polyvinyl alcohol: 20%–40%; sodium carboxymethyl cellulose: 20%–30%; carbon quantum dots: 5%–10%; and water chestnut starch: 30%–45%. The preparation method of the UV blocking film of this invention includes the following steps: 1) preparing a polyvinyl alcohol solution, a sodium carboxymethyl cellulose solution, a carbon quantum dot dispersion, and a water chestnut starch solution; 2) preparing a gelatinized mixed slurry; and 3) casting the gelatinized mixed slurry into a film and then drying it to obtain the UV blocking film. The UV blocking film of this invention has advantages such as excellent UV blocking performance, good moisture barrier performance, high mechanical strength, high transparency, environmental friendliness, and biodegradability. It can be used as a packaging material, and its preparation method is simple and has low production cost, making it suitable for large-scale industrial production and application.

The invention belongs to the technical field of high polymer materials, and discloses a daylighting tile resin preparation method, which comprises: 1, preparing a surface optical layer; 2, preparing a middle reinforcing layer; step 3, preparing a base weather-proof layer; and 4, carrying out three-layer co-extrusion molding. According to the daylighting tile resin with high weather resistance and thermal deformation resistance, the light transmittance of a daylighting tile is remarkably improved by adopting the technical means of compounding the sulfur-containing acrylic resin and the high-refraction TiO2 nano particles with the refractive index of 2.0 on the optical layer. Tests show that the light transmittance of the resin can reach 92.5% and is improved by 8.8% compared with the light transmittance of the traditional lighting tile resin. Meanwhile, the ultraviolet barrier rate of the lighting tile resin is as high as 98.5%, the damage of ultraviolet to indoor articles can be effectively blocked, a more comfortable and healthy illumination environment is provided for the interior of a room, and the requirements for high light transmittance and excellent ultraviolet barrier performance of the lighting tile resin are met.

This invention relates to the field of liquid mulch film technology, and proposes a black liquid mulch film and its preparation method. A black liquid mulch film comprises the following components by weight: 3-5 parts chitosan, 1.5-3 parts colorant, 4-6 parts filler, 3-5 parts polyvinyl alcohol, 3-5 parts film-forming aid, 0.2-0.3 parts thickener, and 80-90 parts water. The filler is composed of components with different particle sizes, specifically by weight percentage: 15μm≤attapulgite≤20μm 55wt%~65wt%, 2μm≤attapulgite≤5μm 25wt%~35wt%, 50nm≤zinc oxide≤80nm 10wt%. This technical solution solves the problems of insufficient mechanical properties and UV blocking performance of existing liquid mulch films.

A container for curable cyanoacrylate composition comprising:a reservoir for holding curable cyanoacrylate composition, the reservoir having an outlet through which the curable cyanoacrylate composition can be dispensed;the reservoir being defined by walls of plastics material,the plastics material being formed by a polymer material that is transmissive to both visible light and UV light; anda UV blocking agent dispersed in the plastics material the UV blocking agent comprising at least one benzotriazole;the walls of the container being transmissive to visible light and non-transmissive to UV light. Curable cyanoacrylate compositions held within such a container are thus storage stable in ambient conditions and yet the curable cyanoacrylate compositions can be seen through the walls of the container. A pack comprising the container and a curable cyanoacrylate composition is also described.

The display device includes a panel portion and a protective window portion coupled to the panel portion. The panel portion includes: a substrate; a support film disposed on the lower portion of the substrate; a driving element disposed on the substrate and including an active pattern; and a UV blocking member disposed on the lower portion of the driving element.