Abstract: Devices positioned between an energy source and an imprint lithography template may block exposure of energy to portions of polymerizable material dispensed on a substrate. Portions of the polymerizable material that are blocked from the energy may remain fluid, while the remaining polymerizable material is solidified.

Abstract: A mold comprising alumina having a microscopic pattern, in which distances between adjacent recesses or salients therein are not longer than wavelength of visible light, formed by anodic oxidation on a surface of an aluminum pre-mold without a rolling mark, wherein height or depth difference at a crystal grain boundary is 300 nm or less.

Abstract: In a method for manufacturing keypad having three-dimensional patterns, curable resin is filled in a mold, and a ultra-violet lamp irradiates the curable resin, thereby curing the resin. A plurality of different materials is overlapped with each other, and a coating layer is coated on the surface of each three-dimensional pattern, thereby manufacturing a key having three-dimensional patterns. Via the above arrangement, the recognition and aesthetic feeling of each three-dimensional pattern can be increased.

Abstract: An electrophoretic display medium manufacturing method for manufacturing an electrophoretic display medium that includes a first substrate and a second substrate that are provided such that they face one another, the electrophoretic display medium manufacturing method including the steps of forming a first substrate such that it conforms to recessed and protruding portions of a forming surface provided in a forming die, the first substrate being formed from a synthetic resin, forming partition walls that are projecting portions to partition a space sandwiched between the first and the second substrate into a plurality of cells, and forming electrode films in non-wall portions that are parts of the inner face of the first substrate where the partition walls are not formed, such that the electrode films will apply an electrical field for moving charged particles enclosed within the cells.

Abstract: Provided are orthopedic implants and scaffolds comprising poly(vinyl alcohol) which has a degree of hydrolysis of at least 90% and a weight average molecular weight of at least 50,000. Also provided are methods for making same.

Abstract: A sub-master template is patterned to provide at least double the density of features of a master template. The sub-master template and master template may employ the use of alignment marks during the patterning process.

Abstract: An improved method of forming features on substrates by imprinting is provided. In the method, a polymer solution that contains at least one polymer dissolved in at least one polymerizable monomer and the polymer solution is deposited on the substrate to form a liquid film thereon. Further, the liquid film is cured by causing the at least one monomer to polymerize and optionally cross-linking the at least one polymer to thereby form a polymer film, the polymer film having a glass transition temperature of less than 100° C., and the polymer film is imprinted with a mold having a desired pattern to form a corresponding negative pattern in the polymer film. Alternatively, the liquid film is imprinted with the mold and the liquid film is cured in the presence of the mold to form the polymer film with the negative pattern.

Abstract: A process for manufacturing a monolithic thermal ink jet printhead (40) comprising a plurality of chambers (74) and of nozzles (56), comprises steps of (206) depositing a plurality of sacrificial layers (31), of obtaining, by means of exposure and development operations, a plurality of casts (156), of (215) applying a structural layer (107), and subsequently steps of (225) removing the casts (156) and of (226) removing the sacrificial layers (31), in order to produce a plurality of chambers (74) and nozzles (56).

Abstract: A curable composition and method for producing a tear resistant, yet soft and deformable in-the-ear product yielding the user greater comfort and durability. The curable composition incorporated into a hearing aid apparatus provides a deformable, yet tear resistant housing, which may be mated to a soft tip component. The hearing aid housing provides better comfort, durability and acoustic performance for a variety of ear canal shapes. The curable composition that provides these properties includes at least one urethane acrylate oligomer, at least one reactive diluent and a cure system. The composition when cured desirably produces a tear strength of at least about 75 pli and a hardness of about Shore A 60 to about 75.

Abstract: A method for manufacturing a resin mold includes the steps of: attaching a transmitting resin member capable of transmitting a laser beam and an absorbing resin member capable of absorbing the laser beam; and irradiating the laser beam on an interface between the transmitting resin member and the absorbing resin member from a surface of the transmitting resin member so that a welding spot is formed on the interface and the transmitting resin member and the absorbing resin member are welded. The laser beam is irradiated homogeneously on the interface by a homogenizer so that a center portion of the welding spot and an outer portion of the welding spot are heated homogeneously by the laser beam.

Abstract: In a method for manufacturing compact keypad, a first molding die with bottom surface of smooth face, matted face or patterned layer is prepared. Colloid is injected into the first molding die and a first carrier covers the surface of the colloid. A rolling wheel presses the first carrier and the colloid evenly into the first molding die. The colloid is cured by UV light to form a keypad layer attached on the first carrier. A background color layer, a functional color layer and a textual color layer are formed on the first carrier. A second carrier is prepared and a reflection layer is printed on the surface of the second carrier. The second carrier and silicon rubber are placed into a second molding die and thermally pressed therein to form a resilient layer. The resilient layer is adhered with the keypad layer to form the keypad panel.

Abstract: Curable thiol-ene compositions containing urethane (meth)acrylate oligomers that are readily polymerized to produce optical articles and coatings are described.

Abstract: Processes for preparation of seals and gaskets using cure-in-place techniques that incorporate a molding step, which is preferably an injection molding step, are provided. The processes are useful for preparing sealing assemblies that comprise compositions that are curable by UV radiation and that are adhered to a support member.

Abstract: Disclosed herein is a method of manufacturing a barrier rib for a plasma display panel, including a silicon compound resin. The method according to a first embodiment of this invention includes providing a silicon compound resin layer on a substrate; pressing the silicon compound resin layer using a master having a pattern corresponding to the shape of a barrier rib to be transferred; and curing the silicon compound resin and then releasing the master. In addition, the method according to a second embodiment includes loading a silicon compound resin into grooves of a master having a pattern corresponding to the shape of a barrier rib; pressing the master on a substrate to transfer the silicon compound to the substrate; and curing the transferred silicon compound resin and then releasing the master.

Abstract: Chemically cross-linked polymeric particles are formed using mechanical rather than chemical processes, facilitating production of small-diameter particles in a manner largely independent of the viscosity or density of the polymer. For example, an uncross-linked resin may be provided in particulate form, agglomerated, and compressed into a mass of a desired shape with a desired diameter, and subsequently cross-linked.

Abstract: A method of manufacturing thin film transistor and color filter substrates suitable for liquid crystal displays comprises imprinting a pattern in a resin layer formed on a substrate by disposing a mold on the resin layer, aligning the mold and the substrate, curing an edge portion of the resin layer, pressing the full area of the resin layer, curing the full area of the resin layer, and separating the mold from the resin layer.

Abstract: The invention relates to a device for optical detection of substances in a liquid or gaseous medium, with a substrate with molecules for detecting the substances that are to be detected, wherein these molecules are immobilised at a surface of the substrate or in the substrate and wherein the substances that are to be detected can essentially be selectively bound to these molecules, wherein light waves can be coupled into the substrate and can be guided through this, and wherein the substrate is a foil element made of a transparent material in which a coupling structure for coupling the light waves is integrally formed and in which the coupled light waves can be guided.

Abstract: By heating, allowing to stand at normal temperature, or irradiating in the presence of a photo-polymerization initiator, a curable resin composition which contains (A) a resin material having a radical polymerizable unsaturated group and an epoxy group, (C) a radical polymerization initiator, (D) an amine compound and/or a mercaptan compound containing one or more of active hydrogen in one molecule, and (E) a compound, which is an adduct in which the (D) amine compound and/or a mercaptan compound, is reacted with the radical polymerizable unsaturated group of the (A) resin material, thereby a cured product can be obtained.

Abstract: A fuel cell, having improved sealing against leakage, includes a sealant disposed over the peripheral portions a membrane electrode assembly such that the cured sealant penetrates a gas diffusion layer of the membrane electrode assembly. The sealant is applied through liquid injection molding techniques to form cured sealant composition at the peripheral portions of the membrane electrode assembly. The sealant may be thermally cured at low temperatures, for example 130° C. or less, or may be cured at room temperature through the application of actinic radiation. The sealant may be a one-part or a two-part sealant. The sealant includes a polymerizable material, such as a polymerizable monomer, oligomer, telechelic polymer, functional polymer and combinations thereof functionalized with a group selected from epoxy, allyl, vinyl, (meth)acrylate, imide, amide, urethane and combinations thereof.

Abstract: The mixture according to the invention comprises: molecules having physicochemical properties, monomers, carrying crosslinkable functions, and representing at least 30% by weight of the mixture, advantageously at least 40% by weight. This mixture is used in particular in methods for fabricating and sealing crystal-containing cells or batteries, consisting of juxtaposed troughs.

Abstract: The present invention provides a method for patterning a substrate with a template having a mold that features positioning conformable material between the substrate and the mold and filling a volume defined between the mold and the substrate with the conformable material through capillary action between the conformable material and one of the mold and the substrate. Thereafter, the conformable material is solidified. Specifically, the distance between the mold and the substrate is controlled to a sufficient degree to attenuate, if not avoid, compressive forces between the mold and the substrate. As a result, upon initial contact of the mold with the conformable material, spontaneous capillary filling of the volume between the mold and the substrate occurs.

Abstract: A manufacturing method for a stamper is provided. UV light cure adhesive is sprayed on a substrate and cured to form a three-dimensional pattern. Thereafter, a stamper is formed on the substrate and the three-dimensional pattern, such that the stamper has a first pattern opposite to the three-dimensional pattern. Afterwards, the stamper is separated from the substrate and the three-dimensional pattern. The stamper is disposed in a cavity of an injection molding machine to form a light guide plate. The light guide plate has a second pattern identical with the three-dimensional pattern.

Abstract: A method for manufacturing an information recording medium, a method of transferring a concavo-convex pattern, and a transfer apparatus are provided which are capable of curing a resin material with reliability even when using a light-transmitting stamper repeatedly. A stamper made of a light-transmitting resin, having a predetermined concavo-convex pattern formed on its transfer area, is inspected for an optical characteristic. The stamper is brought into contact with an energy-ray curable resin material applied to an object to be processed, thereby transferring the concavo-convex pattern to the resin material, and the resin material is irradiated with an energy ray through the stamper so that the resin material cures. The stamper is used a plurality of times to repeat these steps a plurality of times, thereby manufacturing a plurality of information recording media.

Abstract: An information recording medium manufacturing method is provided in which a resin material can be reliably cured even when a light-transmitting stamper is used repeatedly. A resin mask forming method and a transferring apparatus and a light-transmitting stamper used in these methods are also provided. In the above methods, a visible light curable resin material is spread over a workpiece. Then, a light-transmitting stamper including a transferring portion having a predetermined concavo-convex pattern formed therein is brought into contact with the resin material to transfer the concavo-convex pattern to the resin material, and light including visible light is projected onto the resin material through the light-transmitting stamper to cure the resin material.

Abstract: In a method of manufacturing a thin keypad of a keypad panel having a smooth surface, a mist surface or a lines layer, the method includes the steps of: preparing a mold with an internal bottom surface of a coarse surface, a smooth surface or a lines surface; applying an adhesive into the mold and coating a carrier onto the surface of the adhesive; rolling the surface of the carrier by a roller to level the adhesive in the mold; performing a ultraviolet projection to cure the adhesive to form a keypad layer on the carrier; filming a ground color layer, a function color layer and a font color layer sequentially on the carrier as the background of the keypad panel; and hot pressing and combining the keypad layer and silicon to produce the keypad panel.

Abstract: To enable molding of a hydrodynamic pressure producing part on the flat surface of a material by simple steps highly accurately and at low costs. A microdroplet 13 of an ultraviolet curable type ink from a nozzle head 11 by the ink jet method is caused to land or dropped on the upper end face 2b1 of the material 2b?. The nozzle head 11 and a light source 14 which irradiates a ultraviolet ray are disposed sequentially according to the direction of travel of the material 2b?, and are provided at positions opposing the material 2b?. While the material 2b? is relatively slid, landing or dropping of the ink from the nozzle head 11 and curing of the ink by the ultraviolet ray irradiated from the light source 14 are gradually conducted according to in the direction of travel of the material 2b? to form the hydrodynamic pressure producing part.

Abstract: A method and apparatus for performing nanoimprint lithography. When an electric field is applied between the mold and the substrate, various forces can be generated among molds, substrates, and resists. The electrostatic force between the mold and the substrate can serve as an imprinting pressure to press the structured mold into the conformable resist. In addition, the electric field induces additional wetting forces (electrowetting or dielectrophoresis) in a liquid resist, which can assist the flow and filling of the liquid resist into fine structures.

Abstract: A display panel includes a sheet having first and second spaced apart surfaces defining a space therebetween and a plurality of partitions extending from the first surface to the second surface and dividing the space into a plurality of cells, wherein the thickness of each partition is in a range of 0.01 to 10 ?m.

Abstract: The present invention describes a method for curing polymers and polymer composites with X-rays generated by the bremsstrahlung effect, using a high power, high energy electron beam. The process generates X-rays with sufficient throughput and penetration for commercial use. The present invention employs high power, high energy electron beams to create the X-rays. The beams are typically run at energies ranging from 1 MeV to 10 MeV, preferably from 3 MeV to 10 MeV, and more preferably from 5 MeV to 7 MeV. The beams typically have powers ranging from 30 kW or higher, preferably 80 kW or higher, more preferably 100 kW of higher, and ideally at least 200 kW. Suitable polymers and polymer composites include, but are not limited to, polymeric molding materials, fiber reinforced molding materials, reactive monomer impregnated wood, similar and dissimilar materials bonded through adhesives.

Abstract: A method for curing polymerizable compositions by irradiating the compositions with a pulsed light that is emitted from an LED. The method of the present invention is especially suitable for curing dental compositions.

Abstract: The present invention relates to a porous membrane formed by curing at least one type of anionic monomer by UV irradiation in the presence of a photo-initiator wherein said porous membrane has at least 0.1 meq negative charges per m2, preferably between 0.3 and 5 meq negative charges per m2. The invention further relates to image recording materials, in which these porous membranes are used.

Abstract: Chemically cross-linked polymeric particles are formed using mechanical rather than chemical processes, facilitating production of small-diameter particles in a manner largely independent of the viscosity or density of the polymer. For example, an uncross-linked resin may be provided in particulate form, agglomerated, and compressed into a mass of a desired shape with a desired diameter, and subsequently cross-linked.

Abstract: Disclosed is a resinous molded article which has a fine structure of a nanometer level and includes a material containing a polymer of a polymerizable organic fluorocompound. The polymer is formed from, for example, a monomeric precursor composition containing a methacrylate and/or an acrylate in combination with a fluorine-containing photopolymerizable monomeric precursor composition miscible with the former composition.

Abstract: The present invention relates to a novel composition for dental, orthopedic and drug delivery purpose. Specifically, it relates to composition comprising an admixture of a resorbable bone substitute and a crosslinkable prepolymer. It also relates to the composition formed by crosslinking the admixture.

Abstract: A system and method for forming a polymeric molding. A mold component includes a transmissive portion for passing curing energy such as UV light into the mold cavity. A masking collar is engaged around the transmissive portion to block curing energy from exposing and curing polymeric material outside of the region underlying the transmissive portion.

Abstract: A system and method for forming a polymeric molding. A mold component includes a UV-absorptive material for preventing undesired reflection or transmission of curing energy within the mold cavity, thereby providing more precise control of the edge geometry of the molding.

Abstract: A nanoimprinting configuration includes a UV light diffuser that randomizes a collimated UV light beam so as to diffuse the shadowing effect from any defect object that resides in the UV optical path. In addition, a combination center circular pad and outer ring-shaped pad form a donut-shaped “non-contact” area between the two pad pieces. The size and shape of the two pad combination are designed to avoid direct gel pad contact above the patterned imprint zone on the disk substrate. The purpose of the gel pad, non-contact configuration is to eliminate any possible surface deformation incurred along the loading column and thereby avoid the elastic propagation of any deformations to the stamper resist surface.

Abstract: A method of fabricating a device including imprinting a mold having a protrusion against a substrate having a resist layer such that the protrusion engages the resist layer. The mold further has a mask member positioned generally adjacent the resist layer. Radiation energy is then transmitted through the mold and into the resist layer; however, the mask member substantially prevents transmission of the radiation energy therethrough, thereby defining an unexposed area in the resist layer. Once the mold is removed from the substrate, which consequently forms a first feature from nanoimprinting, the unexposed area of resist layer is removed through dissolving in a developer solution.

Abstract: Presently described is a microstructured mold prepared from a photocured polymeric material that comprises at least one (i.e. first) photoinitiator having certain absorption characteristics. The mold is suitable for use in methods of molding a (e.g. barrier rib) microstructure precursor composition that comprises at least one (i.e. second) photoinitiator. The second photoinitiator of the microstructure precursor preferably has similar absorptions characteristics as the first photoinitiator. Thus, the polymeric material of the mold the microstructure precursor can be cured with the same wavelength range of light.

Abstract: An imprinting method is disclosed which involves irradiating a photo-curable imprintable medium in a flowable state on a substrate with radiation to initiate curing of the medium, after the irradiating, contacting the medium with a template to form an imprint in the medium, allowing the medium to substantially cure such that the medium is in a substantially non-flowable state while the medium is contacted by the template, and separating the template from the medium while the medium is in the substantially non-flowable state.

Abstract: A micro-lens array and manufacturing method. A hybrid micro-lens in which a refractive lens and a diffraction lens are formed includes: a refractive lens; a first ultraviolet hardening material which is bonded on a curved surface of the refractive lens to form an aspheric surface; a support substrate including a concave portion into which the refractive lens is inserted and supported; and a diffraction lens which is formed at a position corresponding to the refractive lens disposed on the support substrate.

Abstract: The present invention is directed to a template having a body including a surface with first and second regions. The first region has first wetting characteristics for a given material and the second region has second wetting characteristics for the given material. The first wetting characteristics differ from the second wetting characteristics. Specifically, the first region is formed from a surface treatment layer with a first surface energy to provide the first wetting characteristics. The second region is exposed portions of the body, typically quartz of fused silica, having a second surface energy associated therewith. The second surface energy is greater than the first surface energy to provide the second region with the second wetting characteristics.

Abstract: A soft mold may be manufactured that is used for forming a pattern. Semiconductor devices and flat panel display devices include a plurality of fine patterns on a substrate. The soft mold may be photo-curable and formed of a material with a hydrophobic property similar to heat-curable molds. The photo-curable mold may be created on a master plate with a resin layer that is removed with a back plate and adhesive layer after embossed or depressed portions are formed on the mold that correspond with embossed or depressed portions of the master plate.

Abstract: A method for creating a three-dimensional solid freeform fabrication object with phase-change material includes depositing a bulk amount of phase-change material in a defined region, selectively ink-jetting an ultraviolet initiator onto a predetermined area of the phase-change material, wherein the ultraviolet initiator defines a cross-sectional area of the three-dimensional object, and exposing the ultraviolet initiator to an ultraviolet light to cause cross-linking of the defined region.

Abstract: A process for fabricating ceramic composites employs a thermoplastic photo-curable pre-ceramic polymer in which the component is shape by a variety of standard composite fabrication techniques, such as filament winding, tape winding, and woven cloth winding. The process includes steps of passing ceramic fiber monofilament, tow, mat, or woven cloth through a solution of said thermoplastic photo-curable pre-ceramic polymer, applying ceramic fiber monofilament, tow, mat, or woven cloth to a moving flat substrate, using a compaction roller to press the thermoplastic pre-ceramic polymer coated ceramic fiber onto flat substrate using photo-light of the ultraviolet, visible, or infrared light spectrum to induce cross-linking (curing) of the photo-curable pre-ceramic polymer thereby rendering a thermoset polymer and either partially or completely pyrolyzing the now cured pre-ceramic polymer matrix coated ceramic fiber material.

Abstract: A method for fabricating a color filter substrate for a liquid crystal display (LCD) device includes forming red (R), green (G) and blue(B) color filters in color filter areas on a substrate; forming an overcoating layer on the R, G and B color filters; arranging a mold on the overcoating layer; performing a first curing process on the overcoating layer through the mold; removing the mold from the overcoating layer; and performing a second curing process on the overcoating layer after removing the mold.

Abstract: A method for fabricating a mold includes the steps of forming a photo-polymerizable resin layer between a master substrate and a transparent mold substrate, wherein a first pattern is formed on the master substrate; solidifying the resin layer by exposing the resin layer to a UV light through the transparent mold substrate; and forming a mold having a second pattern by separating the resin layer from the master substrate, wherein the second pattern is in a form of a recess on the resin layer at a portion corresponding to the first pattern and the resin layer being engaged with the mold substrate.

Abstract: A method of manufacturing photonic band gap structures operable in the optical spectrum has been presented. The method comprises the steps of filling a plurality of grooves of an elastomeric mold with a UV curable first polymer, each groove in parallel with each other and partially curing the first polymer. A second polymer is coated on the first polymer. A substrate or a multi-layer polymer structure is placed on the filled mold and the resulting structure is exposed to UV light (i.e., is UV cured). The mold is peeled away from the first and second polymers such that a layer of polymer rods is formed on the substrate/multi-layer polymer structure. The process is repeated until a desired number of layers have been formed. The multi-layer structure can be used to create ceramic and metallic photonic band gaps by infiltration, electro-deposition, and/or metal coating.

Abstract: An apparatus for forming a pattern in a curable material carried on a substrate having one or more components with coefficients of thermal expansion that are substantially equal to the coefficient of thermal expansion of the substrate.

Abstract: A new class of amines is incorporated into phtopolymerizable systems employing type I or type II photoinitiators. These amines are trialkylamines having a total of 10 to about 36 carbon atoms in the molecule and wherein at least one alkyl group has a chain length of at least 8 carbon atoms. Preferably, one or two of the alkyl groups are methyl or ethyl or one of each. Short chain amines as defined herein provide synergistic results when used with such trialkylamines.