Abstract: A method of preparing particles comprises forming by optical lithography a topographic template layer disposed on a surface of a substrate, which is suitable for spin casting. The template layer comprises a non-crosslinked template polymer having a pattern of independent wells therein for molding independent particles. Spin casting a particle-forming composition onto the template layer forms a composite layer comprising the template polymer and the particles disposed in the wells. The composite layer is removed from the substrate using a stripping agent that dissolves the template polymer without dissolving the particles. The particles are then isolated.

Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Described herein are fiber producing devices that are capable of producing coaxial fibers.

Abstract: The invention relates to a fiber excellent in cool contact feeling which is excellent in hand and skin touch and capable of preventing unpleasant feeling in the wet state while also having excellent elasticity. The invention also relates to fabric, clothing, and underwear excellent in cool contact feeling and obtainable by using said fiber as well as the methods of making the fibers and articles thereof.

Abstract: Fibers can be formed from monomers derived from a biorenewable source. In an embodiment, a fiber forming composition that includes a monomer or mixture of monomers with at least one monomer being derived from a biorenewable source in placed in a fiber producing device. At least a portion of the fiber forming composition is ejected through an opening of the fiber forming device. The ejected fiber forming composition is subjected to light at wavelengths sufficient to activate a reaction which causes solidification of the fiber as the fibers are ejected from the fiber producing device.

Abstract: An apparatus for forming particles from a liquid, including a rotor assembly having at least one surface sized and shaped so as to define at least one capillary. Each capillary has an inner region adjacent an axis of rotation of the rotor assembly, an outer region distal from the axis of rotation, and an edge adjacent the outer region. The rotor assembly is configured to be rotated at an angular velocity selected such that when the liquid is received in the inner region of the at least one capillary, the liquid will move from the inner region to the outer region, adopt an unsaturated condition on the at least one surface such that the liquid flows as a film along the at least one surface and does not continuously span the capillary, and, upon reaching the edge, separates from the at least one surface to form at least one particle.

Abstract: The invention relates to polymeric fibers and a process of preparing polymeric fibers. The process comprises the steps of synthesizing a composite of thermotropic liquid crystalline polymer (TLCP) comprising multi-walled carbon nanotubes (MWNTs), and spinning the composite to form composite fibers. Specifically, the MWNTs are incorporated at a very low concentration. It is demonstrated that the as-spun TLCP/MWNTs composite fibers demonstrated significantly enhanced mechanical properties as compared with the control TLCP fibers without MWNTs. Fibers having 0.3 wt % MWNTs (C-3) demonstrated an increase of tensile modulus and strength by 38% and 32%, respectively, when compared with the control TLCP fiber without MWNTs.

Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Embodiments described herein relate to apparatuses and methods for the deposition of fibers onto substrates.

Abstract: Fibers and methods of forming the fibers are described herein. The fibers generally include an ethylene based polymer exhibiting a molecular weight distribution of from about 2 to about 8.

Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Systems and methods of heating the fiber producing device, before and during use, are also described herein.

Abstract: The invention relates to continuous fiber layers comprising an active substance on the basis of bio-polymers, comprising a fibrous, bio-polymer active substance carrier, and at least one active substance associated with the carrier and releasable from the continuous fiber layer; to formulations comprising an active substance, the formulations comprising such continuous fiber layers; to the use of continuous fiber layers comprising an active substance for the production of formulations comprising an active substance; and to a method for the production of continuous fiber layers comprising an active substance. The invention further relates to corresponding continuous fiber layers comprising an active substance and to the use thereof for the production of wound treatment and hygiene products, and to the respectively produced wound treatment and hygiene products.

Abstract: The present application discloses a sustained release composition in pellet form, wherein the core of the pellet comprises: (a) a therapeutically effective amount of a medicament; (b) 0.5 to 50% by weight of a water-soluble polymer; and (c) 1 to 25% by weight of a water-insoluble polymer applied as an aqueous latex dispersion and subsequently the water is removed, wherein the sum of the percentages of the medicament, the water-insoluble polymer and the water-soluble polymer is equal to or less than 100%. It also discloses methods of making this composition.

Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. The apparatuses and methods described herein may be used to simultaneously create microfibers and nanofibers.

Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Described herein are fiber producing devices that have various types of outlet elements coupled to the fiber producing device.

Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers, which include additives that modify one or more properties of the produced fibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described.

Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Use of material transfer conduits allows the continuous production of fibers without the need to stop the process to refill the fiber producing device.

Abstract: Disclosed are methods of fiber spinning and polymer fibers that utilize multifunctional thiol and enes compounds. Also, the subject matter disclosed herein relates to uses of polymer fibers and articles prepared from such fibers.

Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers, that include additives that modify one or more properties of the produced fibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Fiber producing devices with features that enhance fiber production and adaptability to different types of fiber are described.

Abstract: A spinneret having tri-arc holes may be used to produce tri-arc filaments. In some instances, tri-arc holes have a Y-shape with three prongs and each prong having an arc at the end of the prong that tapers from the end of the arc to a connection point of an adjacent arc, and tri-arc filaments have a generally-Y shape cross-section with bulbous or arcing tips. Further, tri-arc filaments may be useful in a plurality of applications including, but not limited to, filters, filters comprising particulate additives, and smoking device filters.

Abstract: The problem addressed by the present invention is to provide a method for producing microparticles. Provided is a method that is for producing microparticles and that is characterized by containing at least the the following two steps: (I) a step for preparing a microparticle starting material solution by dissolving at least one type of microparticle starting material in a solvent using high speed stirring or ultrasonic waves, and (II) a step for precipitating microparticles by mixing the microparticle starting material solution and at least one type of precipitation solvent for precipitating the microparticle starting material in a thin film fluid formed between at least two processing surfaces that are disposed facing each other, are able to approach/separate from each other, and of which at least one rotates relative to the others.

Abstract: An apparatus for forming particles from a liquid, including a rotor assembly having at least one surface sized and shaped so as to define at least one capillary. Each capillary has an inner region adjacent an axis of rotation of the rotor assembly, an outer region distal from the axis of rotation, and an edge adjacent the outer region. The rotor assembly is configured to be rotated at an angular velocity selected such that when the liquid is received in the inner region of the at least one capillary, the liquid will move from the inner region to the outer region, adopt an unsaturated condition on the at least one surface such that the liquid flows as a film along the at least one surface and does not continuously span the capillary, and, upon reaching the edge, separates from the at least one surface to form at least one particle.

Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described.

Abstract: In a method and system for forming concentrated volumes of microbeads, a polymer solution and/or suspension includes a polymer dissolved and/or dispersed in a medium. Streams of a focusing fluid and of the polymer solution and/or suspension flow towards a fluid bath, and into intersection with one another, so &s to focus the polymer solution and/or suspension. The polymer solution and/or suspension stream forms microbeads in the fluid bath. Some of the focusing fluid is drawn from the fluid bath, so as to concentrate the microbeads in die fluid bath. The system includes a flow focusing apparatus and a liquid-containing cell. The focusing apparatus includes polymer and focusing nozzles. The cell contains the fluid bath and has an outlet port, through which the focusing fluid is drawn from the fluid bath.

Abstract: The present invention relates to a purified cellulose fiber which has an initial elastic modulus of 2.30 cN/dtex or higher in a region having an elongation of 0.5% to 0.7%, wherein the purified cellulose fiber is made by wet spinning or dry-wet spinning a cellulose-dissolved liquid made by dissolving a cellulose raw material in an ionic liquid, and a fiber-rubber composite and a tire, each using the same.

Abstract: A method for obtaining an elongate polysaccharide element, in particular a chitosan thread, includes extruding a hydroalcoholic extrusible solution containing a polyalcohol of said polysaccharide through an extrusion die, coagulating the extruded solution by neutralisation, and at least one operation of removing the polyalcohol. The ratio of water to polyalcohol in the extrusible solution is determined such as to obtain in the elongate element a polysaccharide with the crystalline structure thereof mainly in the form of an anhydrous allomorph. Since the polysaccharide used to prepare the extrusible solution has a weight-average molar mass Mw0, the polysaccharide in the elongate element obtained preferably has a weight-average molar mass Mw1 comprised between Mw0 and 0.7 Mw0. Since the purpose is to obtain a chitosan thread, the latter has properties of mechanical strength and flexibility that allow the thread to be tied into overhand knots and to be woven without breaking.

Abstract: Ultrafine polyamide fiber includes polyamide fiber with a single yarn fineness of 0.10 dtex or more and 0.50 dtex or less and an average number of 1.0 or less per 12,000 m of a filament in a length direction.

Abstract: Disclosed herein is a method for preparing a crosslinked hollow fiber membrane. The method involves spinning a one phase solution comprising a monoesterified polyimide polymer, acetone as a volatile solvent, a spinning solvent, a spinning non-solvent, and optionally an organic and/or inorganic additive, wherein the volatile solvent is present in an amount of greater than 25 wt. % to about 50 wt. %, based on the total weight of the solution.

Abstract: An ultrathin-layer chromatography plate including a stationary phase comprising electrospun nanofibers wherein at least about 50% of the nanofibers are oriented within 20° of a direction of alignment, and wherein the stationary phase has a thickness from about 10 ?m to about 30 ?m.

Abstract: A method for producing terylene fiber using polyester waste is disclosed. Firstly, dried polyester waste is sent into a screw extruder, then is melt and extruded to be polyester melt. Whereafter, the melt is filtrated twice to remove impurities. Then macromolecule polymerization reaction is taken place in the polyester melt to homogenize the molecular weight of macromoleclar polymer and to increase the viscosity of the polyester. Then the melt with increased viscosity is finely filtrated using melt precision filter. Whereafter, the melt is sent into a spinning box to execute metering spinning, then is cooled and solidified to be filaments. Finally, the filaments are wound according to various process requirements. The method can increase the quality of regenerated polyester spinning melt. The regenerated polyester melt has less impurities and homogenous viscosity after multiple filtrating.

Abstract: The present invention relates to a biopolymer having excellent tensile strength, extensibility and toughness. The present invention further relates to a nucleic acid molecule encoding the biopolymer of the invention, a vector comprising the nucleic acid molecule of the invention and a non-human host transformed with the vector of the invention. Furthermore, the present invention relates to methods for producing a biopolymer of the invention and to foams, films, gels, coatings, particles, capsules, springs or nonwoven mats as well as fibres comprising or consisting of the biopolymer of the invention. The present invention also relates to a method of producing fibres and the biopolymer of the invention for use in medicine, agriculture, cosmetics as well as surface, paper, leather and/or textile processing.

Abstract: Described herein are filtration membranes and related, compositions, methods and systems and in particular filtration membranes with embedded polymeric micro/nanoparticles and related compositions, methods, and systems.

Abstract: The present invention relates to the production of high flux hollow fiber ultrafiltration membrane prepared from poly(acrylonitrile-co-methacrylic acid), (polysulfone and poly(acrylonitrile-co-methacrylic acid)) and (polysulfone and ion exchange resin (sulfonated polystyrene-divinyl benzene copolymer)) blend and the point-of-use filtration unit there from for water purification and disinfection. The produced membrane has an active layer with pore size which effectively rejects pathogens and other bacteria from contaminated water while allowing the passage of water to produce biologically pure water for drinking. Therefore, the present invention relates to development of hollow fiber ultrafiltration membrane that delivers biologically pure water at a desirable rate, that is at a rate 25-200 liters/m2.h. The membrane performance in terms of flux and rejection efficiency is dependent on polymer material type and surface properties.

Abstract: The present invention provides aqueous stable suspensions of biodegradable diblock copolyesters and a method for their production. The diblock copolyesters comprise one block of an aliphatic polyester and one block of a polyethylene oxide. Suspensions according to the present invention are suitable to be used as biodegradable viscosity modifiers, compatibilizers in blends, as glues, varnishes, paper additives, flame retardants, impact modifiers and hazers of transparent plastics, and for the production of biodegradable sheets, films, fibers, plates, vessels, tubes and capillaries for transport or packaging purposes. Furthermore, the suspensions according to the present invention are suitable to be used for the production of nano- and microfibers and nano- and microfiber nonwovens with non-oriented or oriented fibers by means of electrospinning.

Abstract: The present disclosure provides derivatives of native lignin suitable for production of carbon fibres wherein the derivatives of native lignin have a certain alkoxy content and/or a certain carbon content. The present lignin derivatives can have acceptable spinnability performance characteristics for producing carbon fibres having acceptable tensile strengths and acceptable modulus of elasticity.

Abstract: A fusible lignin has a gas transition temperature in the range between 90 and 160° C. determined using differential scanning calorimetry (DSC), a molar mass distribution with a dispersivity of less than 28, determined using gel permeation chromatography (GPC), an ash content of less than 1 wt. %, and a proportion of volatile components of a maximum of 1 wt. %. Also provided is a precursor fiber based on the fusible lignin, as well as a method for the production thereof Also provided is a method for producing a carbon fiber from the precursor fiber.

Abstract: Nanofibers are manufactured while preventing explosions from occurring due to solvent evaporation. An effusing unit (201) which effuses solution (300) into a space, a first charging unit (202) which electrically charges the solution (300) by applying an electric charge to the solution (300), a guiding unit (206) which forms an air channel for guiding the manufactured nanofibers (301), a gas flow generating unit (203) which generates, inside the guiding unit (206), gas flow for transporting the nanofibers, a diffusing unit (240) which diffusing the nanofibers (301) guided by the guiding unit (206), a collecting apparatus which electrically attracts and collects the nanofibers (301), and a drawing unit (102) which draws the gas flow together with the evaporated component evaporated from the solution (300) are included.

Abstract: Disclosed in this specification is the design for an internal mixing device which increases the plug flow like behavior of the rotating inclined reactor.

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: A spherical tungsten carbide powder is characterized by that the material has a microhardness higher than 3600 kgf/mm2, and that the powder has an apparent density from 9.80 to 11.56 g/cm3. A method for the manufacture of a powder comprises the steps: a) providing a chamber comprising a rotatable crucible, b) adding material into said rotatable crucible, c) melting the material using a plasma arc discharge, d) rotating the crucible to atomize the molten material to form liquid droplets, with subsequent cooling of the droplets to obtain a powder, wherein the material added into said rotatable crucible is heated to a temperature above 40% of the melting temperature of the material before it enters the crucible. It is possible to reduce the current required for melting the stock. Heat losses are decreased, and the spherical powder obtained during atomization becomes more homogeneous in its composition and structure. The cost is reduced.

Abstract: The various embodiments herein provide a system and method for enhancing polymerization and nanoparticles production using a disc reactor. The system comprises of a rotating disc comprising a first surface and a second surface arranged longitudinally along a single axis of rotation, a shaft attached to the rotating disc, a ring provided across the first surface and the second surface of the rotating disc, at least one feed inlet for providing a feed solution, a fluid inlet for providing a heat transfer fluid, a fluid outlet for exiting the heat transfer fluid, a product collector for collecting the produced nanoparticles and a product outlet for exiting the produced nanoparticles. The feed solution flows from the first surface to the second surface of the rotating disc due to centrifugal forces and gets accumulated on the product collector and exits from the disc reactor through the product outlet.

Abstract: Provided are thermoplastic organic fibers including a copolymerized resin of maleic anhydride with polypropylene, a method for preparing the same, a fiber composite board using the thermoplastic organic fibers as a matrix, and a method for manufacturing the fiber composite board. The thermoplastic organic fibers solve the problem of a limitation in improvement of strength caused by low wettability and adhesion between the thermoplastic organic materials used as a matrix according to the related art and reinforcing fibers.

Abstract: A nanofiber production device produces nanofibers by stretching, in a space, a solution. The nanofiber production device includes: an effusing body which effuses the solution into the space by centrifugal force; a driving source which rotates the effusing body; a supplying electrode which is placed at a predetermined distance from the effusing body and supplies charge to the solution via the effusing body; a charging electrode to which a potential of reverse polarity to a polarity of the effusing body is applied, with the charging electrode being placed at a predetermined distance from the effusing body; and a charging power source which applies a predetermined voltage between the supplying electrode and the charging electrode.

Abstract: A process for the production of nanocrystals or amorphous nanoparticles of actives (nanomaterials), especially from the peels of grapes. A dispersion of a micrometer-sized material in a solution of surfactant or a steric stabilizer is first provided. The macrosuspension is then stirred for at least 1 minute at a rotational speed above 500 rpm using a rotor-stator mixer. The stirred mixture is passed through a jet stream or piston-gas type high pressure homogenizer. The nanomaterials produced can be incorporated into formulations for use as nutraceutical, nutritional supplement, or as supportive treatment in medical therapy. The active can be derived from the peels of grapes.

Abstract: Disclosed are: a yellow pigment composition which contains at least one kind of yellow pigment microparticle having excellent transmission characteristics; and a method for producing the yellow pigment microparticle. Specifically disclosed are: a yellow pigment composition which contains at least one kind of yellow pigment microparticle that are characterized in that the difference between the maximum transmittance (Tmax) and the minimum transmittance (Tmin), namely (Tmax?Tmin) is 80% or more in the transmission spectrum at 350-800 nm; and a method for producing the yellow pigment microparticle.

Abstract: This invention pertains to a novel process for preparing fibers from poly(?(1?3) glucan). The fibers prepared according to the invention, have“cotton-like” properties, are useful in textile applications, and can be produced as continuous filaments on a year-round basis. The process comprises solution spinning from a novel solution of poly(?(1?3) glucan) in a mixture of water and N-methylmorpholine-N-oxide followed by coagulation in a liquid coagulant that comprises a liquid that is not water.

Abstract: A quinacridone pigment composition contains quinacridone microparticles which have durability and spectral characteristics equivalent to those required for a magenta color of a dye. The quinacridone pigment composition contains at least one type of quinacridone microparticles, wherein a difference between the maximum transmittance (Tmax1) and the minimum transmittance (Tmin) is 80% or more in a transmission spectrum at 350 nm to 800 nm and the difference between the maximum and minimum transmittance is 30% or more in a transmission spectrum at 350 nm to 580 nm, or the difference between the maximum transmittance (Tmax1) and the minimum transmittance (Tmin) is 80% or more in a transmission spectrum at 350 nm to 800 nm and the wavelength (?max) at which the transmittance in a transmission spectrum at 350 nm to 500 nm becomes maximum is less than 430 nm. A method is provided for producing the quinacridone microparticles.

Abstract: A process for producing a ceramic membrane in the form of a hollow fibre, which process comprises: forming a suspension by mixing inorganic oxide precursor particles with a solution of a polymer binder dissolved in a solvent for the binder; feeding the suspension through a spinneret to form hollow fibres; passing the fibres through an air gap and into a coagulant to solidify the fibres; heating the fibres to remove the polymer binder; and sintering the fibres to render them gas tight, wherein the polymer binder is selected so that it may be removed from the fibres by heating without leaving any residual species within the ceramic that will impair the oxygen permeability of the fibres.

Abstract: The present invention provides a highly functional polyethylene fiber excellent in the cut resistance, has a high dimensional stability at about room temperature at which products are used, has a high shrinkage rate and stress, and excellent in forming processability when processed at a low temperature much less than a melting point of a polyethylene. And the present invention provides a highly functional polyethylene fiber excellent in processability at a low temperature, wherein an intrinsic viscosity [?] is higher than or equal to 0.8 dL/g, and is not higher than 4.9 dL/g, ethylene is substantially contained as a repeating unit, and a thermal stress at 40° C. is lower than or equal to 0.05 cN/dtex, and a thermal stress at 70° C. is higher than or equal to 0.05 cN/dtex, and is not higher than 0.25 cN/dtex. Further the present invention provides strings, ropes, woven/knitted textiles, and gloves thereof.

Abstract: The invention relates to a method for producing a polysilane-polycarbosilane copolymer solution from which a ceramic material having a ratio of silicon to carbon in the range of 0.8:1.0 to 1.1:1.0 can be obtained after removal of the solvent and pyrolysis, comprising the following steps: generating a chloric raw polysilane/oligosilane containing hydrocarbon groups by means of disproportioning a methylchlorodisilane or a mixture of a plurality of methylchlorodisilanes of the composition Si2MenCl6-n, where n=1-4, wherein the disproportioning takes place by means of a Lewis base as a catalyst, thermally post-cross-linking the raw polysilane/oligosilane into a non-melting polysilane-polycarbosilane copolymer that is soluble in a neutral solvent, and producing said solution by means of dissolving the polysilane-polycarbosilane in a neutral solvent.

Abstract: A method for producing tables made of mixtures of a plurality of materials, and a method for producing a sulfurous fertilizer. A method for producing tablets made of mixtures of a plurality of materials, particularly urea mixtures, having the following steps:—producing a liquid melt of a first material,—adding at least one further material in solid or liquid form to the melt for producing a mixture,—output of drops of the mixture onto a steel belt by means of a drop former having a rotating, perforated outer drum,—solidification of the drops of the mixture on the steel belt into tablets, wherein the at least one additional material is mixed into the liquid melt in liquid form immediately before the drop former or into the liquid melt in solid. form upstream of a two-stage heated grinding and mixing unit.

Abstract: Apparatuses and methods for the production of superfine fibers.