41 results about "Uv blocking" patented technology

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.

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.

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.

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 / ℃.

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 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 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.

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.

This application relates to the field of solar cell technology and provides a photovoltaic front panel glass and a solar cell module. The photovoltaic front panel glass of this application includes a glass substrate and an ultraviolet (UV) blocking layer. The UV blocking layer includes a UV blocking body layer disposed on the light-facing side of the glass substrate and a protective layer disposed on the light-facing side of the UV blocking body layer. The UV blocking body layer can block at least a portion of ultraviolet rays, and the protective layer protects the UV blocking body layer. The photovoltaic front panel glass of this application can both improve UV resistance performance using the UV blocking body layer and provide protection for the UV blocking body layer using the protective layer, ensuring the durability of the UV resistance performance of the photovoltaic front panel glass. It also reduces the risk of corrosion from acid rain and other factors such as aging or oxidation damage to the internal encapsulant film and cells (or film) of the solar cell module, thereby improving the quality of the solar cell module.

The utility model relates to the technical field of woven bags, in particular to an ultraviolet-resistant plastic woven bag, which aims to solve the technical problems that when the woven bag is used, the woven bag is inevitably rubbed, an ultraviolet coating is damaged, and the ultraviolet resistance of the woven bag is reduced. The open end of the woven bag is connected with the ultraviolet blocking film, the ultraviolet blocking film is of a hollow thin film structure with the two ends open, and the open end of one side of the ultraviolet blocking film is connected with the open end of the woven bag. The ultraviolet blocking film is lifted out of the woven bag and curled at the outer top of the woven bag, the ultraviolet blocking film is prevented from being damaged due to friction of the raw materials, when the raw materials are placed in a standing mode, the woven bag is sleeved with the ultraviolet blocking film, and when the raw materials are placed, the ultraviolet blocking film is rubbed, only slides and is not rubbed and damaged.

The present invention relates to a polymer carbon nitride, a specific crystal form of the polymer carbon nitride, and a cosmetic composition, an ultraviolet ray-blocking composition, and an external use skin preparation composition, which include the polymer carbon nitride. The polymer carbon nitride according to one aspect of the present invention and a crystal form produced by a specific preparation example thereof can absorb both UVA and UVB, and thus can effectively protect the skin from ultraviolet rays while also being non-toxic and thus suitable for living bodies and lacking photoactivity. Therefore, the polymer carbon nitride and the crystal form can be utilized in a cosmetic composition, an ultraviolet ray-blocking composition and an external use skin preparation composition, which are applied to the living body. Moreover, the specific crystal forms of the polymer carbon nitride have different characteristics according to the manufacturing method, and thus may be used in a variety of ways according to the characteristics. Particularly, the crystal form of the polymer carbon nitride according to one aspect can be adjusted to various colors according to the preparation method, and thus can be utilized to obtain a composition having a desired color. Therefore, the crystal form can be suitably utilized to produce products of various colors suitable for the skin tones of individuals.

This invention belongs to the field of polyester film technology and relates to a high-rigidity thin optical polyester film and its preparation method. The film includes a B layer and an A layer located on both sides of the B layer, forming an ABA superimposed structure. The raw materials for preparing the B layer include 5-10% by mass of modified copolyester, with the remainder being pure polyester. The raw materials for preparing the A layer include 3-5% by mass of UV blocking masterbatch, 5-10% by mass of opening agent masterbatch, with the remainder being pure polyester. The modified copolyester is prepared by esterification polycondensation of a glycol mixture and a diacid; the molar ratio of the glycol mixture to the diacid is (1.2-1.28):1; the glycol mixture consists of anthracene-containing glycol and ethylene glycol, with a molar ratio of (1:9) to (3:7) between the anthracene-containing glycol and the ethylene glycol. The high-rigidity thin optical polyester film prepared by this application has the characteristics of high light transmittance, low haze, and high rigidity.

This invention relates to cosmetic compositions comprising brewer's yeast extract and diol. These compositions selectively promote the growth of beneficial bacteria on the skin, thereby maintaining the balance of the skin microbiome. This contributes to skin health by improving damaged skin and other means. They can be used to maintain the skin's microecological balance and can improve or enhance the UV blocking effect of UV blockers, thus enabling UV blocking enhancement.

A windshield shading curtain device for protecting a driver of a vehicle from ultraviolet light includes a vehicle that has a cab and a windshield and a curtain rail extending along a full width of the windshield. A curtain is slidably attached to the curtain rail thereby enabling the curtain to hang in front of the windshield of the vehicle. The curtain is comprised of a translucent material to enable a driver to see through the curtain. The curtain is comprised of an ultraviolet light blocking to protect the driver from ultraviolet light. Additionally, a polarizing layer is applied to the curtain to polarize the light passing through the polarizing layer thereby protecting the driver's vision from glare produced by headlights of oncoming vehicles or other sources of light.

The application provides a glass and a preparation method thereof, a glass assembly and application. The chemical composition of the glass comprises, in mass percentage, 55-75% of SiO2, 0-10% of Al2O3, 0-5% of TiO2, 5-15% of Na2O, 2-10% of K2O, 0-5% of ZnO, 0-10% of B2O3, 0-5% of MgO, 0.5-10% of CeO2 and 0-5% of R2O3, wherein R2O3 comprises one or more of La2O3, Gd2O3 and Y2O3. The glass provided by the application has an ultraviolet blocking rate of more than 98%, a refractive index nd of 1.50-1.75, a visible light transmittance of more than 91% and an attenuation (2000h UV irradiation) of less than 0.5% after aging, and is particularly suitable for manufacturing a cover plate of a satellite solar cell panel or a vehicle glass.

The application discloses a super-weather-resistant transparent film prepared by co-extrusion of PVDF and ETFE, and the film structure is a surface layer, an intermediate layer and a bottom layer. The surface layer comprises 50-85 parts by weight of a PVDF homopolymer or copolymer, 10-45 parts by weight of a flow modifier, and 1-4 parts by weight of an antioxidant, a UV blocking agent / UV absorber; the intermediate layer is a blend of ETFE and PVDF; and the bottom layer is ETFE. The application further provides a preparation method and application of the super-weather-resistant transparent film. The co-extrusion film has a transmittance of greater than or equal to 85% for light with a wavelength of 380-1100 nm, and has the characteristics of super-weather resistance, super-toughness and high UV blocking.

An interlayer film according to the present invention comprises an ionomer resin and at least one ultraviolet absorber selected from the group consisting of compounds having a benzotriazole structure and compounds having a triazine structure, wherein the content of the ultraviolet absorber is 0.04-0.18 mass%, and the content of structural units having a un-neutralized carboxylic acid, with respect to the total amount of resin containing a structural unit derived from unsaturated carboxylic acid, is 2.5-4.3 mol%.　The present invention makes it possible to provide an interlayer film having a high adhesive strength, a high UV blocking ratio, and good transparency.

The present application relates to the technical field of paint, and relates to a kind of anti-UV transparent paint for exhibition cabinet glass and its preparation method, by weight percentage, including the following components: 20%-40% modified water-based polyurethane emulsion, 10%-30% polymethyl methacrylate emulsion, 5%-15% silica sol, 1%-5% UV absorber, 0.5%-3% functional additives, and the balance is deionized water, wherein the modified water-based polyurethane emulsion is mixed by water-based polyurethane emulsion and blend, the blend is mixed by silane coupling agent modified multi-walled carbon nanotube and ionic liquid modified graphene, and the mass ratio of the blend and water-based polyurethane emulsion is 1:15-1:30.The present application has high UV blocking rate, high visible light transmittance, low haze, excellent yellowing resistance and other properties, and is particularly suitable for the protection of exhibition cabinet glass in high-end exhibition environment such as museum and art gallery.