1301 results about "Photo curing" patented technology

The invention provides a novel aerogel multifunctional material and a preparation method thereof. The multifunctional aerogel composite is prepared from gellan gum, hyaluronic acid as well as derivatives or mixture of the gellan gum and the hyaluronic acid, aerogel, a novel light-sensitive material, a novel solvent or novel ionic liquid or a novel mixed solvent formred by the above solvents or essential oil and the like by a high-energy photocuring method. The composite material has the characteristics of low density, low heat-conducting coefficient, high weather resistance, environmental friendliness and the like. A functional carrier or a functional material coated with the composite material has high heat-isolating, heat-insulating, cold-accumulating, moisturizing, moisture-proof, moisture-retaining and anti-haze characteristics, and the characteristics and the use range of the materials can be improved. The multifunctional material is extremely widely applied, and can be widely applied in the fields of haze prevention and control, disease diagnosis and treatment, medicine, military industry, chemical industry, spaceflight, navigation, aviation, high-speed train, paper making, printing, water treatment, agriculture and animal husbandry, a cold chain system, food and cosmetic safety.

The present invention is directed to providing a photo nanoimprint lithography which can form a more uniform base layer. A photo nanoimprint lithography according to the present invention includes the steps of discretely applying a photo-curable resist drop-wise onto a substrate, filling an asperity pattern of a mold with the photo-curable resist by bringing the mold having the asperity pattern formed therein into contact with the photo-curable resist, curing the photo-curable resist by irradiating the resist with a light and releasing from the mold the photo-curable resist which has been photo-cured, wherein an intermediary layer is formed on a surface of the substrate for maintaining a discrete placement of the photo-curable resist that has been instilled drop-wise on the substrate until the mold is brought into contact with the photo-curable resist that has been instilled drop-wise on the substrate.

A method for manufacturing an image display device includes the step of forming a cured resin layer 15 by interposing a photo-curable resin composition between a base 2 including an image display unit such as a liquid crystal display panel 8 and a light-transmitting protection member 3 including a light-shielding member 5 and then photo-curing the photo-curable resin composition. In this method, a resin composition having a curing shrinkage ratio of 5% or less, yielding a cured product having a storage elastic modulus at 25° C. of 1.0×10⁷ Pa or less, and forming the cured resin layer having a light transmittance of 90% or more in the visible range is used as the photo-curable resin composition.

An optical film 10 has a transparent base film 11 made of polyethylene terephthalate (PET), a prism made of photo-curing resin such as acryl modified epoxy on an incident surface 12 that is one face of the base film 11, and a hologram similarly made of photo-curing resin on an exit surface 13 opposing the incident surface 12. The prism has grooves or ridges each having a substantially triangular cross section to totally reflect incident light so as to bend the light into a direction perpendicular to the exit surface 13. The hologram anisotropically diffuses light exiting from the exit surface 13, to improve brightness.

The invention relates to a UV optical solidifying adhesive agent, in particular a UV photo-curing adhesive for lamination of polarizer sheet protective membrane, which comprises prepolymer, reactive monomer, photo-initiation agent, and auxiliary agent.

Disclosed is a photo-curable composition comprising the following components (A) to (C): (A) hydrolyzable silane compound represented by the general formula (1) or a hydrolyzate thereof: (R1)pSi(X)4-p (1) wherein R1 is a non-hydrolyzable organic group having 1 to 12 carbon atoms, X is a hydrolyzable group, and p is an integer of 0 to 3; (B) photo acid generator; and (C) dehydrating agent. By such constitution, it is possible to provide a photo-curable composition which has a rapid photo-curable rate, is excellent in characteristics such as storage stability, heat resistance, weather-ability, scratch resistance and the like, and is applicable to base materials having low heat resistance such as plastics, as well as a cured product obtained therefrom.

Provided is a preparation method of a porous ceramic material rapidly formed based on photocuring. The preparation method comprises the steps that firstly, a photo-cured resin prepolymer, an active diluent and a surface modifier are evenly mixed to obtain a premixed solution, ceramic powder and a pore-forming agent are mixed to obtain porous ceramic powder, then the porous ceramic powder is mixed in the premixed solution to obtain primary slurry, and then a photoinitiator is added to prepare a photocured porous ceramic slurry; the ceramic slurry is put in a photocuring forming device to prepare a photocuring forming blank; finally the blank is degreased and sintered to obtain the porous ceramic material. By designing and optimizing the components and proportion of the photocured porous ceramic slurry and using a photocuring 3D printing device, the limitations of traditional mold processing to shapes are overcome. The micropores formed by adopting the pore-forming agent and macropores for 3D printing are combined, and the high-porosity foam ceramic material can be prepared. In addition, the macropores are controllable in shape and distribution, and gradient porous ceramic material can be prepared.

A photo-curable resin composition for sealing material, which is superior in the photo-curing performance and in the prompt curing property and is better in the adhesive property, in the resistance to moisture permeation and in the heat resistance, the photo-curable resin composition comprising(A) a compound having oxetane ring,(B) a photoinitiator for cationic polymerization and(C) a silane coupling agent,wherein the composition has a viscosity in the range from 0.01 to 300 Pa.s at 25° C.

The present invention discloses one kind of ultraviolet ray cured nanometer antibiotic woodenware lacquer and its preparation process. The ultraviolet ray cured nanometer antibiotic woodenware lacquer includes epoxy acrylate, polyurethane acrylate, diluent, nanometer inorganic antiseptic, nanometer inorganic stuffing and photoinitiator. The preparation process includes adding nanometer inorganic antiseptic and nanometer inorganic stuffing into the diluent, stirring to disperse homogeneously, adding epoxy acrylate, polyurethane acrylate and photoinitiator and mixing homogeneously. The woodenware lacquer with nanometer inorganic antiseptic can inhibit the growth and propagation of bacteria and microbes to produce long term antibiotic effect.

An electronic package assembly where a low profile integrated circuit chip package is soldered to an organic (e.g., epoxy resin) substrate, e.g., a printed circuit board or card, the projecting conductive leads of the integrated circuit chip package and the solder which substantially covers these leads (and respective conductors on the substrate) having been substantially covered with ultraviolet photocured encapsulant material (e.g., an epoxy resin or a cyanate with a photoinitiator and silica) to provide reinforcement for the solder-lead connections. The encapsulant material is dispensed about the solder and lead joints following solder reflow and solidification so as to substantially surround the solder and any portions of the leads not covered with solder.

The invention discloses castor oil-based polyurethane acrylate and a preparation method as well as application thereof. The castor oil-based polyurethane acrylate is hexa-functional or octa-functional castor oil-based polyurethane (methyl) acrylate resin. An acrylate radical comprises a methacrylate radical and an acrylate radical, and is suitable for carrying out free radical polymerization. Under the action of a photoinitiator, the resin is irradiated by ultraviolet light and can generate cross linking at a higher speed. A film formation product of the castor oil-based polyurethane acrylate has excellent flexibility and adhesive force; the hardness and the glossiness of a cured film are obviously improved; the castor oil-based polyurethane acrylate can be used as a formula ingredient of a photo-cured coating material, ink, and an adhesive.

A system, method, and portable or mobile controller are provided for network management of functions such as monitoring, control, programming, and calibration of a plurality of (UV) light sources, for photo-reactive and photo-curing applications. Beneficially, a reliable and controlled closed-loop feedback network is provided in which a dose of light, or exposure profile, for e.g. spot curing, can be programmed into a light source unit to perform a highly repeatable operation across a single or multiple work stations. The system is scalable up to 1000's of workstations.

The invention provides a photo-curing three-dimensional printing method and printing device based on projection. The printing method comprises the following steps: a projection system scans, prints and cures layer by layer under the control of a control system; when each layer is printed, the whole pattern needing to be printed on each layer is completed by linearly moving a projection breadth obtained by the projection system in a horizontal plane, and the projection breadth horizontally and linearly moves according to a preset route; during moving, the control system obtains the coordinate position of an area projected by the projection breadth in real time and controls a local pattern, corresponding to the coordinate position, projected by the projection system, and the printing and curing of the local pattern are completed. The projection breadth obtained by the projection system linearly moves in a horizontal plane, namely mobile projection. The large-breadth photo-curing three-dimensional printing can be realized, the printing precision and high efficiency of a projector are ensured, and the printing precision of the whole product is improved.

The invention discloses a photo-curing monomer with ortho-phenolic hydroxyl strucutre, a preparation method and bond thereof. In the formula I monomer, the compound which has crylic acid at two ends or crylic acid double bond at one end and methylacrylic acid double bond at the other end is added to the amidogen of dopamine and derivant thereof through a Michael addition method to form corresponding secondary amine or tertiary amine. In the formula II monomer, the double bond is introduced by (methyl) acrylic anhydride, (methyl) crylic acid and (methyl) acryloyl chloride. The photopolymerization bond comprises the following components by weight percent: 20 to 99.9 percent of the compound with the ortho-phenolic hydroxyl structure, 0 to 70 percent of activated thinner and/or solvent, 0.1 to 10 percent of evocating agent and 0 to 60 percent of natural macromolecule or modified outcome thereof. The bond can be bonded in dry state and wet state, is a quick and long lasting bond, realizes the organic bond of biological bond and photopolymerization, has the advantages of low manufacture cost, simple and convenient operation and high productivity and has extensive application foreground in the biological bond field.

The invention relates to a transparent anti-ultraviolet heat-proof complex film with nanometer oxide and a preparation method thereof, which mainly solves technical problems of high cost, poor quality and the like that existed in the transparent film and film technique of glass surface. Technical proposal of the invention is: the transparent anti-ultraviolet heat-proof complex film, of which, the understratum is the high transparent film or glass base material, and the surface layer is the nanometer transparent heat-proof function photo-cured coating or the nanometer transparent heat-proof function pressure-sensitive adhesive; wherein, the components and parts by weight of the nanometer transparent heat-proof function photo-cured coating or the nanometer transparent heat-proof function pressure-sensitive adhesive are as follows: photo-cured resin or pressure sensitive adhesive: 50-94, nanometer powder: 3-9, surface tension accessory ingredient: 0.2-1.0, thinner: 2.0-35.0, dispersant: 0.8-5.0. The heat-proof complex film of the invention possesses not only the excellent heat isolation performance, ultraviolet radiation absorption performance, but also excellent 'penetrability'. The heat-proof complex film can be extensively used for auto windows, building windows, glass curtain walls and other occasions.

A process for producing intraocular lenses (IOLs) capable of absorbing blue light and ultraviolet light using photo curing. Intraocular lenses so produced block blue light and ultraviolet light from reaching the retina of an eye implanted with the IOL. By blocking blue light and ultraviolet light from reaching the retina, the IOL thereby prevents potential damage to the retina.

One object of the present invention is to provide a pattern transferring mold which can provide a starting area of mold release easily and certainly and a pattern transferring apparatus with the same. A pattern transferring mold is disclosed which is used in a pattern transferring apparatus that brings the mold into contact with a photo-curing resin on a substrate and cures the photo-curing resin by light irradiation to transfer a pattern formed on the mold onto the photo-curing resin. The mold comprises a bottom face which contacts the photo-curing resin, the bottom face portion including a first area in which the pattern is formed and a second area formed outside the first area. The mold has a mold-releasing shape in the second area, the mold-releasing shape providing a starting area of mold release from the cured photo-curing resin.