Abstract: A device for producing a three-dimensional shaped object, including a substrate part having a base surface for holding the shaped object, a first reservoir for holding a flowable first material, a second reservoir for holding a flowable second material, a dispensing mechanism for dispensing material portions of the first material, a material application mechanism including an application roll and a coating mechanism for applying a second material layer of the second material, and a fixation mechanism for solidifying the material layers composed of the first material and the second material. The transfer body rotates about an axis of rotation disposed parallel to the base surface, the dispensing mechanism and the application roll r relative to the substrate part about an axis disposed normal to the base surface, the application roll is conical, and an axis of rotation of the application roll intersects the axis disposed normal to the base surface.

Abstract: A system and method are provided for manufacturing filamentous polymer matrices, comprising electrospinning a polymer fiber into a gap between two or more spaced-apart electrodes.

Abstract: The method for extruding and labeling a packaging tube comprises the following successive steps: a) forming a partially or totally tubular label from a film in a shaper; b) inserting the label into a calibration element; c) extruding a tubular body at the concave-face side of the label in an extrusion head; d) bringing the outer face of the extruded tubular body into contact with the concave face of the label. In the method, the label comprises at least one layer of which the melting temperature is at least 20° C. higher than the melting temperature of the extruded tubular body. A first pressure difference is formed in the extruded tube with an air jet.

Abstract: Disclosed is a waterproof sound-transmitting sheet for facilitating a visual inspection, which radiates a polymer material in a state of blending a pigment to form a waterproof layer having an achromatic color, thereby facilitating a vision inspection, and improving a water repellence even while making the waterproof sound-transmitting sheet thin and light. The disclosed waterproof sound-transmitting sheet for facilitating the visual inspection includes an acoustic layer interposed between an upper waterproof layer and a lower waterproof layer, and at least one of the upper waterproof layer and the lower waterproof layer is composed of a porous colored membrane having a color.

Abstract: A method for additively manufacturing a ceramic containing article includes selecting a ceramic precursor and a curable resin, determining a ratio of the ceramic precursor to the curable resin required to achieve a desired ceramic microstructure, mixing the ceramic precursor and the curable resin according to the determined ratio, and iteratively building an article by sequentially applying a layer of the mixture and curing the layer using an additive manufacturing machine.

Abstract: Methods of repairing a manufacturing defect in a molded polymeric composite structure are provided. A polymeric patch may optionally be disposed over a defect on a first contoured surface of the molded polymeric composite structure having the defect. A heating element that defines a second contoured surface complementary with at least a portion of the first contoured surface is applied over the polymeric patch. The heating element includes an electrically conductive layer that includes a fabric and a thermoset polymer. The polymeric patch is heated with the heating element, where the heating element has a substantially uniform temperature across the second contoured surface so that the polymeric patch fills the defect. Methods of making the customized heating elements and the customized heating elements are also provided.

Abstract: An additive manufacturing system and process for printing a three-dimensional part, which includes one or more electrophotography engines configured to develop layers of the three-dimensional part, a printing assembly configured to print the three-dimensional part from the developed layers, and a planarizer configured to conduct solvent-assisted planarizations on intermediate build surfaces of the three-dimensional part after one or more of the developed layers are printed.

Abstract: A 3-D printer includes a development station positioned to electrostatically transfer layers of material to an intermediate transfer surface, and a transfer station adjacent the intermediate transfer surface. The transfer station is positioned to receive the layers as the intermediate transfer surface moves past the transfer station. Also, a platen is included that moves relative to the intermediate transfer surface. The intermediate transfer surface transfers a layer of the material to the platen each time the platen contacts one of the layers on the intermediate transfer surface at the transfer station to successively form a freestanding stack of the layers on the platen. A fusing station is positioned to apply light to each layer, after each layer is transferred from the transfer station to the platen. The fusing station selectively applies the light to sinter a portion of the material within the layer.

Abstract: A method for producing an intake module may include providing a housing and at least one intercooler arranged therein; forming at least two housing parts via injection molding from plastic; inserting at least one intercooler into at least one of the housing parts; wherein the housing parts, with at least one intercooler inserted therein, are welded together to form the housing; and wherein the intercooler has contact points to at least two of the housing parts.

Abstract: An ionization system includes a power supply and an ionizer. In a first operating state, properties of an output are set to fixed non-zero baseline levels, and in a second operating state, are set to neutralizing levels. The fixed baseline level is different than the neutralizing level for at least one of the properties. A downstream charge sensor measures an object charge. A controller switches the power supply between the first and second states during a sequence of alternating first and second time periods, during the first time period only, senses a current flow to the ionizer, during the second time period only, receives measured charge data from the sensor, during the second time period only, adjusts the neutralizing levels based on the charge data, and during the first or second time period, calculates an upstream object charge based on sensed current flow or determines a relative ionizer condition.

Abstract: Provided are a filter fabrication method and the filter formed thereby. In this method, a three-dimensional graphene polymer complex filter can be easily fabricated. By forming various patterns at a surface of a collector, patterns can be simply formed at a surface of a filter. This provides advantages at control of pressure difference which can be one of the very important factors necessary for designing and fabricating a filter. Since the filter includes graphene particles homogeneously combined to the polymer nanofiber, the filter can represent a superior antibiosis.

Abstract: A heat radiation sheet including: a heat radiation layer that is formed in the form of a nano-web having a plurality of pores by electrospinning a spinning solution that is obtained by mixing a polymer material and a solvent, or the polymer material, a heat conductive material, and the solvent; and an adhesive layer that is laminated on one surface or both surfaces of the heat radiation layer, and that is formed in the form of the nano-web by electrospinning an adhesive material that is obtained by an adhesive, the heat conductive material, and the solvent.

Abstract: A surface treatment method is described herein where a stabilizing (e.g., crosslinking agent) is pre-mixed into a fluid stock comprising a processable polymer. The stock is processed to form products (e.g., nanofibers or films), followed by exposing the products to a stabilizing (e.g., crosslinking catalyst, such as acid vapors), which results in stabilization (e.g., polymer cross-linking on the surface of the product). In some embodiments, the morphology of the product is not changed upon crosslinking. Moreover in some instances, this method does not need strong acids and is performed with weak acids such as acetic acid which reduces environmental pollution. In addition to water soluble polymers (e.g., PVA), this method is applicable to proteins such as soy protein, and combinations of polymers and proteins in various embodiments.

Abstract: Provided herein are silicon nanocomposite nanofibers and processes for preparing the same. In specific examples, provided herein are nanocomposite nanofibers comprising continuous silicon matrices and nanocomposite nanofibers comprising non-aggregated silicon domains.

Abstract: A near field electrospinning system includes a spinneret that provides a plurality of fibers and a collector positioned relative to the plurality of spinnerets. The electrospinning system also includes a coagulant flowing along the collector. The coagulant is configured to receive a plurality of fibers from the spinneret(s) and move the plurality of fibers away from the spinneret(s). The electrospinning system also includes a roller configured to collect the plurality of fibers from the coagulant as a substantially untwisted bundle of continuous fibers.

Abstract: Provided is a waterproof sound-permitting sheet, including: a porous substrate having a plurality of pores; and a porous nanoweb, which is stacked on the porous substrate, has a plurality of pores, and is formed by electrospinning a polymer material to which a black or a different color pigment is added, thereby improving waterproofing performance and sound penetration performance by forming on a porous substrate, such as non-woven fabric, the porous web having the black or the different color by using the electrospinning method, and can shorten a production process by eliminating a pigment coating step by means of adding the pigment to the polymer material when manufacturing the porous nanoweb according to the electrospinning method.

Abstract: The separator of a nonaqueous electrolyte secondary battery is characterized by having a composite nanofiber fiber which is a nanosize fiber that contains two or more kinds of aqueous resins whose melting points are different.

Abstract: The invention defines a nonwoven membrane for the controlled and sustained release of a therapeutic or cosmetic active agent in the area of the body to be treated. This nonwoven membrane comprises one single type of biocompatible electrospun nanofibers and microparticles of at least one therapeutic or cosmetic active agent which are entangled between the nanofibers, the active agent having a low water solubility.

Abstract: Provided is a waterproof sound-permitting sheet, including: a porous nanoweb that has a plurality of pores and that is formed by electrospinning a polymer material to which a black or a different color pigment is added, thereby shortening a manufacturing process and improving waterproofing performance and sound-permitting performance.

Abstract: A mold structure, a patterning method thereof and a method of fabricating an LCD device using the same are disclosed, which can realize a conformal contact by applying a voltage between a mold structure and a material layer being opposite to each other in an In-Plane Printing process, so as to prevent defective patterns, wherein the mold structure comprises a mold whose surface is provided with patterns; a backplane for supporting the mold; and a conductive film formed between the backplane and the mold.

Abstract: Thermoplastic components may experience local damage, including cracks and decohesion of fiber reinforcements, among others. Such thermoplastics may be repaired by heating them to a suitable softening/melting temperature under pressure and maintaining them under pressure and at elevated temperature until the damage is healed. This may be done in-place using custom-fabricated, suitably-shaped die portions maintained under pressure by magnetic attraction. Various heating methods and die portion fabrication methods are described.

Abstract: The present invention relates to a fiber assembly obtained by electrifying a resin in a melted state by application of voltage between a supply-side electrode and a collection-side electrode so as to extend the resin into an ultrafine composite fiber by electrospinning, and accumulating the ultrafine composite fiber, wherein the ultrafine composite fiber includes at least two polymeric components and the ultrafine composite fiber includes at least one type of composite fiber selected from a sea-island structure composite fiber and a core-sheath structure composite fiber as viewed in fiber cross section, at least one selected from an island component and a core component has a volume specific resistance of 1015?·cm or less, and at least one selected from a sea component and a sheath component has a volume specific resistance exceeding 1015?·cm.

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: In order to realize a device and a method each capable of forming a lens with high accuracy and low costs, a lens forming device of the present invention includes a metal mold, an insulating substrate, a stage, a power source, a switch, and a UV radiating device. Dielectric resin is supplied onto the insulating substrate and a transfer surface of the metal mold is pressed to the dielectric resin so as to transfer a lens shape to the dielectric resin. At that time, the power source applies a voltage on the metal mold to generate an electric field between the metal mold and the insulating substrate so that an electrostatic attraction causes the dielectric resin to be attracted toward the transfer surface of the metal mold while the top of the dielectric resin has a sharp cuspate shape. Consequently, bubbles are less likely to be invade between the transfer surface and the dielectric resin, allowing transferring a highly accurate lens shape to the dielectric resin.

Abstract: A fiber having a polymeric matrix and a quarternary ammonium salt. The quarternary ammonium salt contains at least one aliphatic group and no aromatic groups, is not covalently incorporated into the polymeric matrix, and is present on both the surface and in the interior of the fiber. The fiber may be made by electrospinning a solution of the polymer and the quarternary ammonium salt.

Abstract: A method and apparatus provided for the production of fine fibers by electrospinning fibers by applying an electrical field between a primary electrode and a counter electrode (5) spaced apart from the primary electrode and extending generally parallel thereto wherein at least an operative surface of the primary electrode is coated with a polymer solution (3) and an electric field of sufficient magnitude is generated between the primary electrode and counter electrode to cause the formation of fine fibers (9) in the space between the electrodes. The operative surface of the primary electrode that is coated with polymer solution is made up of appropriate portions of the surfaces of a multitude of operatively semi-submerged, loose (unattached) elements (1, 11, 17, 21) supported on the bottom of a trough (2) or tray or another support member or members (12, 18, 22).

Abstract: A spinneret for producing nanofibers from a viscous liquid using electrostatic spinning in an electric field is described. The spinneret includes one or more narrow annular bodies radially centered about and axially spaced along a central axis. The annular bodies may be discs, rings, or coils.

Abstract: An apparatus for charging particles in non-conductive liquids, so they agglomerate and can be removed by filtering, is comprised of a housing which contains a non-conductive insert having a multiplicity of channels. The incoming stream is divided into two halves, each of which is flowed through a set of charging channels which contain electrodes, preferably metal brush-like electrodes. One set of electrodes is charged to a high positive voltage; the other set is charged to a high negative voltage. The liquid streams are then merged and flowed trough a set of mixing channels, along the path of which are one or more reversals in flow direction. The mixing channel path length is substantially longer than the charging channel path length.

Abstract: An apparatus for a production of two-dimensional or three-dimensional fibrous materials of microfibers or nanofibers containing a set of spinning metal nozzles connected to a first potential, a set of electrodes of a collector facing the set of the nozzles, arranged at regular spacing and connected to a second potential, and a collecting plate or a collecting cylinder for collecting microfibers or nanofibers settled between couples of adjacent electrodes of the collector.

Abstract: Described are drug delivery systems incorporating electrospun fibers that comprise and deliver physicochemically diverse drug compounds. Such fibers provide significant advantages in drug agent release, such as adaptability for solid dosage delivery to mucosal tissues. This is in addition to allowing for controlled drug release. Systems and methods for large-scale electrospinning productivity are described, including novel microarchitectures allowing for variable pharmacokinetics in drug release.

Abstract: An artifact for osseous repair includes a bioresorbable porous cage defining an internal space, and a biocompatible composite which includes a plurality of mineralized collagen-mimic fibrils filled in the internal space of the bioresorbable porous cage.

Abstract: A device for producing a three dimensional object from a powdery material by solidifying the powdery material through the application of energy includes a working surface, an application device for applying the powdery material onto the working surface, and a solidifying device for solidifying the powdery material applied onto the working surface. The application device can apply predefined, locally different amounts of powdery material and includes a transfer device, which can be magnetized and/or electrostatically charged and discharged, as well as a magnetizing and/or charging device.

Abstract: A process for production of a nonwoven fabric, which comprises a step wherein a thermoplastic polymer is dissolved in a mixed solvent composed of a volatile good solvent and a volatile poor solvent, a step wherein the resulting solution is spun by an electrospinning method and a step wherein a nonwoven fabric accumulated on a collecting sheet is obtained, is employed to provide a nonwoven fabric having a surface area sufficiently large as a matrix for cell culturing in the field of regenerative medicine, with large gaps between filaments and a low apparent density suitable for cell culturing.

Abstract: A composition is provided that includes a plurality of layered nanofiber scaffolds. A first nanofiber scaffold can include microwells configured to be seeded with one or more relevant cells, a skin tissue, or combinations thereof. Furthermore, the first nanofiber scaffold can comprise uniaxially aligned nanofibers between the microwells and random nanofibers on the microwells. The composite can also include a second nanofiber scaffold that comprises radially-aligned nanofibers. Further provided are methods for making such a composition as well as methods for treating damaged skin that include applying an effective amount of the composition to a site of damaged skin on a subject.

Abstract: In a method of producing a molded product, fiber such as carbon fiber is supplied to a robot delivery head where it is cut into shorter lengths and delivered to a molding tool in a desired orientation and in a desired number of layers to achieve a desired thickness and strength. Resin is then applied to the aligned fibers and cured to form the product. Alignment or substantial alignment of fiber is maintained by applying vacuum to the mold, by electrostatic means, or by coating the fiber with resin prior to application to the molding tool and heating the molding tool surface, or by coating or impregnating the fiber with a ferric powder and magnetizing the molding tool, or by applying a mist layer of epoxy in front of the shortened lengths of fibers. Fiber lengths and deposition rates are varied as required. The method facilitates fully automated production reducing process time and component costs. The invention also comprises a corresponding molded product.

Abstract: Disclosed are methods of forming three dimensional arrays of aligned nanofibers in an open, loose structure of any desired depth. The arrays are formed according to an electrospinning process utilizing two parallel conducting plates to align the fibers and rotating tracks to distribute the fibers throughout the array. Arrays can be used as formed, for instance in tissue engineering applications as three dimensional scaffolding constructs. As-formed arrays can be combined with other materials to form a composite 3-D structure. For instance, composite polymeric materials can be electrospun to form composite nanofibers within the array. Multiple polymeric materials can be electrospun at different areas of the array to form a composite array including materially different nanofibers throughout the array. The arrays can be loaded with other fibrous or non-fibrous materials to form a composite array. Arrays can also be rolled to form a uniaxial fiber bundle.

Abstract: The present invention aims to provide a medical material which is safe for the live body, has high biocompatibility and is useful for promotion of cell differentiation. The present invention produces a medical material for promoting cell differentiation, which contains polyamino acid as a main component, wherein the polyamino acid contains at least one kind of amino acid residue selected from the group consisting of an alanine residue, a valine residue, a leucine residue, an isoleucine residue, a phenylalanine residue, a glycine residue, a glutamine residue, an aspartic acid residue optionally containing a protecting group in the side chain, a tyrosine residue optionally containing a protecting group in the side chain, a tryptophan residue optionally containing a protecting group in the side chain, a lysine residue optionally containing a protecting group in the side chain, and a glutamic acid residue optionally containing a protecting group in the side chain.

Abstract: Embodiments of the present disclosure provide electrospinning devices, methods of use, uncompressed fibrous mesh, and the like, are disclosed.

Abstract: A device is made by forming sacrificial fibers on a substrate mold. The fibers and mold are covered with a first material. The substrate mold is removed, and the covered fibers are then removed to form channels in the first material.

Abstract: A method of manufacturing a three-dimensional preform for a structural component made of a fiber composite material includes simultaneously laying a plurality of dry fibers on a workpiece carrier having a contour that corresponds to an intended three-dimensional shape of the perform and then fixing the fibers on an edge of the workpiece carrier. These steps are repeated in accordance with a predetermined fiber laying pattern until the three-dimensional perform has been completely formed. In addition, between each repetition, the fibers are cut beyond a segment of the fibers fixed on the edge of the workpiece carrier. After the three-dimensional preform has been completely formed, the three-dimensional preform is removed from the workpiece carrier and transferred to a subsequent manufacturing step. An apparatus configured to perform this method is also disclosed.

Abstract: A core is moved within a surrounding nanotube shell by modulating the magnitude of the dispersion force therebetween along successive portions of the nanotube shell.

Abstract: A nanocomposite material apparatus suitable for fabricating a nanocomposite material from different materials is provided. The nanocomposite material apparatus includes an acceleration inner tube and a collection outer tube. The acceleration inner tube disposed along a rotation axis has a top surface, a bottom surface and an outer peripheral surface. Pipes for accelerating different materials is distributed within the acceleration inner tube. Each pipe includes an inlet, an outlet opening at the outer peripheral surface and a spiral trench connecting the inlet and the outlet. Nano materials having electricity are emitted from the corresponding outlets by accelerating different materials within the corresponding pipes.

Abstract: The present technology provides synthesized particles that mimic key structural and functional features of red blood cells. Such RBC-mimicking particles possess the ability to carry oxygen (and carbon dioxide) and flow through capillaries smaller than their own diameter. Further, such particles can also deliver drugs and imaging agents. These particles provide a new paradigm for the design of drug delivery and imaging carriers since they combine the functionality of natural RBCs with the broad applicability and versatility of synthetic drug delivery particles. Further, such particles can be used for detoxification and other biomedical applications.

Abstract: Filtration membrane comprising polymeric nanofibers and/or microfibers attaching dendrimer component presenting reactive sites selective for chemicals to be filtered, and related nanofibers and microfibers, composite materials, compositions, methods and system.

Abstract: A method for electrostatic spinning of thermoplastic polymers for obtaining nano and microfibers, is introduced. The method if characterized by the following steps: solving the thermoplastic polymer in a corresponding solvent; adding a thermoplastic elastomer (TPE) to this solution, and introducing the solution into an electric field and spinning under the effect of the electric field to nano and microfibers.

Abstract: The present invention relates to metal coated nano-fibres obtained by a process that includes electrospinning and to the use of said metal coated nano-fibres. The process is characterised in that a polymer nano-fibre with functional groups providing the binding ability to a reducing reagent is prepared by electrospinning at ambient conditions. Then this is contacted with a reducing agent, thereby opening the epoxy ring on the surface of polymer nano-fibre and replacing with the reducing agent and the reducing agent modified film is reacted with metal solution in alkaline media. Finally the electrospun mat is treated with water to open the epoxy rings in the structure and crosslinking the chains to provide integrity.

Abstract: Manufacturing method and apparatus for a hollow molded part manufactured by spraying a molding material into a mold utilizing the principle of electrostatic coating. The method comprises a spraying step for forming a resin layer by spraying liquid resin with a differential electrical potential relative to the mold into a mold capable of separation into two or more parts from a spray fixture inserted from an opening portion in said mold; a solidifying step for solidifying the resin layer; a mold parting step for opening the mold relative to the spray fixture and parting the solidified resin layer from the mold while it is held in the spray fixture; and a removal step for removing from the spray fixture the resin layer held in the spray fixture.

Abstract: The system and method for stent manufacture includes a method of supercritical stent manufacture including mixing a polymer and a supercritical fluid to form a supercritical mixture; electrically charging a mold to a first polarity, the mold having a mold wall defining a mold plenum; discharging the supercritical mixture through a nozzle; electrically charging the supercritical mixture to a second polarity opposite the first polarity; repeatedly directing the charged supercritical mixture into the mold plenum to form a plurality of polymer layers on the mold wall, the plurality of polymer layers having a predetermined thickness; and separating the plurality of polymer layers from the mold wall.

Abstract: Electrostatic fine fiber generation equipment such as for forming nano-fibers from polymer solution is provided. The fine fiber generation equipment includes a strand that may take the form of a stainless steel beaded chain. The beaded chain can be an endless chain entrained upon two guide wheels and driven about an endless path perpendicularly relative to the collection media.

Abstract: There is disclosed a process for manufacturing an in-mould labelled article, the process comprising the steps of: placing a label comprising a polyvinylidene chloride coated film (15) into a mould for injection moulding, thermoforming, or blow moulding; holding the label in position; injecting a polymeric melt into, or thermoforming or blowing a polymeric preform in said mould so as to bind with the label; and removing the article from the mould. A process of in-mould labelling using a label comprising a polyvinylidene chloride coated film is also disclosed.