Abstract: A method for producing a protein polymer fiber, the method comprising providing a liquid protein solution in a container for liquid, and repeatedly moving the liquid surface in the container back and forth between a first and a second position. Said movement of the liquid surface is such that the protein polymer solution is allowed to form a film in the interface between the liquid surface of the liquid protein solution and a surrounding fluid. The movement of the liquid surface being performed by respectively raising and lowering the liquid surface relative to the container or by moving an object extending through the liquid surface of the liquid protein solution. Also, a device for performing said method.

Abstract: A method for producing a protein polymer fiber, the method comprising providing a liquid protein solution in a container for liquid, and repeatedly moving the liquid surface in the container back and forth between a first and a second position. Said movement of the liquid surface is such that the protein polymer solution is allowed to form a film in the interface between the liquid surface of the liquid protein solution and a surrounding fluid. The movement of the liquid surface being performed by respectively raising and lowering the liquid surface relative to the container or by moving an object extending through the liquid surface of the liquid protein solution. Also, a device for performing said method.

Abstract: A method of producing fibers, includes placing a composition that includes one or more fluoropolymers in the body of a fiber producing device and rotating the device at a speed sufficient to eject material from the fiber producing device to form fluoropolymer microfibers and/or nanofibers.

Abstract: A manufacturing method of biodegradable net-shaped articles includes: (a) preparing a biodegradable mixture; (b) granulating the mixture into plastic grains; (c) baking the plastic grains in an oven at 60° C. to 70° C. for 3 to 4 hours; (d) melting and extruding the plastic grains by a screw-type extruder so as to obtain a net-shaped preform; and (e) cooling and thereby finalizing the net-shaped preform in a cooling bath at 15° C. to 30° C. so as to obtain the net-shaped article.

Abstract: The disclosed subject matter describes systems and methods of electrospinning a fiber for a variety of applications. An exemplary embodiment includes a medical device application for delivering a therapeutic agent, such as a sclerosing agent, to the walls of a blood vessel to perform sclerotherapy. A method of fabricating a medical balloon comprises charging a polymer material with an electric voltage, dispensing the charged polymeric material through a nozzle, collecting the charged polymeric material on a grounded mandrel, wherein the mandrel includes a tubular body having a plurality of openings extending through the tubular body, and forming an electrospun medical balloon defined by a body having a varied thickness.

Abstract: The present invention relates to a process for producing thermoplastic fibres having reduced surface tension and also to products obtainable by the melt-spinning process from these thermoplastic fibres having reduced surface tension, wherein the thermoplastic to be used is admixed with a copolymer of at least one ?-olefin and at least one acrylic or methacrylic ester of an aliphatic alcohol.

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

Abstract: Disclosed herein are compositions and article made therefrom and processes of making them. The composition comprises a polymer, the polymer comprising a repeat unit of formula shown below: wherein the polymer is derived from an aromatic diamine comprising m-phenylene diamine, and an aromatic diacid or a derivative thereof comprising furan dicarboxylic acid or derivative thereof.

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

Abstract: Embodiments herein generally relate to the use, devices, and compounds for generating singlet oxygen. In some embodiments, the singlet oxygen can be used for fluid purification and/or sterilization.

Abstract: Making carbon fiber from asphaltenes obtained through heavy oil upgrading. In more detail, carbon fiber is made from asphaltenes obtained from heavy oil feedstocks undergoing upgrading in a continuous coking reactor.

Abstract: A method for preparing a high temperature melt integrity separator, the method comprising spinning a polymer by one or more of a mechanical spinning process and an electro-spinning process to produce fine fibers.

Abstract: The invention relates to a process for forming fibers from a spinning solution utilizing a high speed rotary sprayer. The fibers can be collected into a uniform web for selective barrier end uses. Fibers with an average fiber diameter of less that 1,000 nm can be produced.

Abstract: A fiber comprises a composition including a poly(phenylene ether). The poly(phenylene ether) has less than or equal to 240 parts per million by weight of hydroxyl groups associated with ethylene bridge groups and less than or equal to 800 parts per million by weight of hydroxyl groups associated with rearranged backbone groups, both amounts based on the weight of the poly(phenylene ether). A method of spinning a fiber from the poly(phenylene ether) is disclosed. The fiber can be spun at a low denier.

Abstract: Exemplary embodiments provide systems, devices and methods for the fabrication of three-dimensional polymeric fibers having micron, submicron, and nanometer dimensions, as well as methods of use of the polymeric fibers.

Abstract: The present invention relates to a method of making mineral fibers, comprising providing a circulating combustion chamber (1) which comprises a top section (2), a bottom section (3) and a base section (4), injecting primary fuel, particulate mineral material and primary combustion gas into the top section of the circulating combustion chamber and combusting the primary fuel thereby melting the particulate material to form a mineral melt and generating exhaust gases, separating the mineral melt from the exhaust gases wherein the exhaust gases pass through an outlet (8) in the circulating combustion chamber and the mineral melt collects in the base section of the circulating combustion chamber, injecting secondary fuel, which comprises liquid or gaseous fuel, and secondary combustion gas into the bottom section of the circulating combustion chamber to form a flame in the bottom section which heats the melt, and flowing a stream of the collected melt through an outlet (15) in the base section to a centrifugal fi

Abstract: Disclosed are an acrylonitrile copolymer excellent in thermal stability as a solution (spinning dope) when dissolved in an amide solvent and capable of forming dense polyacrylonitrile fiber suitable for production of carbon fiber, an acrylonitrile copolymer solution in which the acrylonitrile copolymer is dissolved in an amide solvent, and a method for producing polyacrylonitrile precursor fiber for carbon fiber by use of the acrylonitrile copolymer solution. Specifically, an acrylonitrile copolymer contains a sulfonate group derived from a polymerization initiator in an amount of 1.0×10?5 equivalent/g or more, and the value (equivalent ratio) of (the content of a sulfate group derived from the polymerization initiator/the total content of the sulfonate group and the sulfate group) is 0.4 or less; an acrylonitrile copolymer solution contains the aforementioned acrylonitrile copolymer and an amide solvent.

Abstract: A carbon fiber centrifugal head includes an interior mechanism that at least partially controls flow of precursor material to exterior holes of the head during spinning.

Abstract: Nanofibers are fabricated by introducing a polymer solution into a dispersion medium and shearing the dispersion medium. Droplets of the polymer solution are spun into elongated fibers that are insoluble in the dispersion medium.

Abstract: A container having a plurality of orifices in an outer peripheral wall and having a space communicating with the orifices is rotated to extrude an electrically charged raw material liquid containing a polymer material from the space through the orifices by centrifugal force. This allows the electrically charged raw material liquid to form a fibrous material. At this time, the raw material liquid is supplied to the space in which the raw material liquid is filled by a raw material liquid pump so that the raw material liquid is extruded from the orifices at a predetermined pressure. That is, the raw material liquid in the space is pressurized. Also, the shape of the space in the container is set so that the centrifugal force exerted on the raw material liquid is constant.

Abstract: The linear low density polyethylene nanocomposite fibers are formed from a linear low density polyethylene matrix having carbon nanotubes embedded therein. The addition of the carbon nanotubes enhances the overall toughness of the material, resulting in increases over conventional linear low density polyethylene in the material's tensile strength, elasticity and ductility. The carbon nanotubes constitute between about 0.08% and 1.0% by weight of the linear low density polyethylene nanocomposite fiber. Optimal toughness is found at about 0.3 wt %. The linear low density polyethylene nanocomposite fibers are made by first melting a quantity of linear low density polyethylene, and then blending a quantity of carbon nanotubes into the melted linear low density polyethylene to form a mixture, The mixture is then extruded to form the linear low density polyethylene nanocomposite fibers, which are then spun in a spinneret die to produce the finished linear low density polyethylene nanocomposite fibers.

Abstract: A non-woven web, comprising one or more polymeric fibers, wherein the number-average fiber diameter distribution of said one or more polymeric fibers conforms to a Johnson unbounded distribution. Non-woven webs comprising such polymeric fibers are rendered with mean-flow pore size and porosity desirable for specific filtration applications such as hepafiltration.

Abstract: The invention relates to a process for melt-spinning, drawing and winding multiple synthetic threads and to an apparatus for performing the process. The synthetic threads are spun concurrently side by side through extrusion of fine filamentous strands, cooled down and hauled off to be then collectively drawn as a sheet of threads and wound up on bobbins. To obtain ideally identical physical properties in the collective treatment of the threads, the threads are hauled off independently of each other by separate individual godets after extrusion and before collective drawing. This makes it possible to realize for each thread the same conditions during extrusion, cooling and hauling off. The apparatus includes multiple individual godets arranged side by side, which are arranged upstream of the drawing facility and are each associated with one of the threads. To pull off the threads, the individual godets are configured to be individually driveable.

Abstract: Disclosed are an antibacterial synthetic fiber, and a method for manufacturing the same, characterized in that one or more antibacterial plant extracts are mixed with a fiber-formable polymer and the mixture is melt spun at 200˜300° C. The antibacterial synthetic fiber exhibits excellent and persistent antibacterial activity. In addition, the antibacterial synthetic fiber is superior in physical property to conventional antibacterial fibers and is suitable for use as a material for clothes.

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: The invention relates to a process for forming fibers from a spinning solution utilizing a high speed rotary sprayer. The fibers can be collected into a uniform web for selective barrier end uses. Fibers with an average fiber diameter of less that 1,000 nm can be produced.

Abstract: The present invention relates to a method for spinning fibers, or fiberizers, using a rotary fiber-making die system made up of thin plates, embodied by a housing fixture, configured and stacked to define slots, channels and/or grooves through which the material used to make the fibers will flow. The die system allows for the production of different size and types of fibers, including nanofibers having a diameter of less than 1 micron, and facilitates a variety of cost effective methods for extrusion. The use of plates means the dies can be manufactured cost effectively, with easier clean-outs, replacements and/or variations.

Abstract: A process and apparatus for forming nanofibers from a spinning melt utilizing a high speed rotating distribution disc. The fibers can be collected into a uniform web for selective barrier end uses. Fibers with an average fiber diameter of less that 1,000 nm can be produced.

Abstract: An alloy, characterized in that it contains the following elements (the proportions being indicated in percentages by weight of the alloy): Cr: ?23 to 34% Ti: 0.2 to 5% Ta: 0.5 to 7% C: 0.2 to 1.2% Ni: less than 5% Fe: less than 3% Si: less than 1% Mn: less than 0.5%, the balance consisting of cobalt and inevitable impurities. An article for the manufacture of mineral wool, especially fiberizing spinner, made of such an alloy.

Abstract: The present invention provides methods and devices for the fabrication of 3D polymeric fibers having micron, sub-micron, and nanometer dimensions, as well as methods of use of these polymeric fibers.

Abstract: A solution system for biopolymers in the form of carbohydrates based on a molten ionic liquid, additives optionally being contained in the solution system, is described. This solution system contains a protic solvent or a mixture of several protic solvents, and in the case where the protic solvent is solely water, this is present in the solution system in an amount of more than about 5 wt. %. Carbohydrates can be incorporated into the solution system, in particular in the form of starch, cellulose and derivatives thereof, and it can then be used for regeneration of the carbohydrates contained therein. A particularly advantageous process for the preparation of the solution system containing the carbohydrates and for the preparation of regenerated carbohydrates, in particular in the form of regenerated cellulose fibers, is moreover described. The invention accordingly also provides such spun fibers as are distinguished in that they are non-fibrillating.

Abstract: A nanofiber spinning method and device for producing a high strength and uniform yarn made of nanofibers. The device includes: a nanofiber producing unit (2) which produces nanofibers (11) by extruding polymer solution, prepared by dissolving polymeric substances in a solvent, through small holes (7) and charging the polymer solution, and by allowing the polymer solution to be stretched by an electrostatic explosion, and which allows the nanofibers to travel in a single direction; a collecting electrode unit (3) to which an electric potential different from that of the charged polymer solution is applied, and which attracts the produced nanofibers (11) while simultaneously rotating and twisting the nanofibers, and gathers them for forming a yarn (20) made of the nanofibers (11); and a collecting unit (5) which collects the yarn (20) passed through the center of the collecting electrode unit (3).

Abstract: A fluidized mixture is issued from a nozzle comprising a fan jet at the outlet, causing the mixture to spread as it is issued. The issued material is collected on a moving collection surface located a distance of between 0.25 and 13 cm from the outlet of the nozzle, prior to the onset of large scale turbulence in the fluid jet. The resulting product has good basis weight uniformity.

Abstract: Nanofibers are formed from a polymer material by rotating a conductive rotating container having a plurality of small holes while supplying a polymer solution formed by dissolving a polymer material in a solvent into the rotating container, charging the polymer solution discharged from the small holes of the rotating container by charging means, and drawing the discharged filamentous polymer solution by centrifugal force and an electrostatic explosion resulting from evaporation of the solvent. The nanofibers from this production step are oriented and made to flow from one side toward the other side in a shaft center direction of the rotating container by a reflecting electrode and/or blowing means, or those nanofibers are deposited, to produce a polymer web. The nanofibers and the polymer web using these nanofibers can be produced uniformly by a simple configuration with good productivity.

Abstract: Disclosed are an acrylonitrile copolymer excellent in thermal stability as a solution (spinning dope) when dissolved in an amide solvent and capable of forming dense polyacrylonitrile fiber suitable for production of carbon fiber, an acrylonitrile copolymer solution in which the acrylonitrile copolymer is dissolved in an amide solvent, and a method for producing polyacrylonitrile precursor fiber for carbon fiber by use of the acrylonitrile copolymer solution. Specifically, an acrylonitrile copolymer contains a sulfonate group derived from a polymerization initiator in an amount of 1.0×10?5 equivalent/g or more, and the value (equivalent ratio) of (the content of a sulfate group derived from the polymerization initiator/the total content of the sulfonate group and the sulfate group) is 0.4 or less; an acrylonitrile copolymer solution contains the aforementioned acrylonitrile copolymer and an amide solvent.

Abstract: The present invention relates to a method for spinning fibers, or fiberizers, using a rotary fiber-making die system made up of thin plates, embodied by a housing fixture, configured and stacked to define slots, channels and/or grooves through which the material used to make the fibers will flow. The die system allows for the production of different size and types of fibers, including nanofibers having a diameter of less than 1 micron, and facilitates a variety of cost effective methods for extrusion. The use of plates means the dies can be manufactured cost effectively, with easier clean-outs, replacements and/or variations.

Abstract: PLA stereocomplex fibers are made by separately melting a high-D PLA starting resin and a high-L starting resin, mixing the melts and spinning the molten mixture. Subsequent heat treatment introduces high-melting “stereocomplex” crystallinity into the fibers. The process can form fibers having a high content of “stereocomplex” crystallites that have a high melting temperature. As a result, the fibers have excellent thermal resistance. The process is also easily adaptable to commercial melt spinning operations.

Abstract: A nonwoven fabric includes fibers of a fiber raw material including gelatin, the fibers including at least one of an antimicrobially effective substance and an antibiotic, wherein the fibers are produced by rotational spinning.

Abstract: An alloy, characterized in that it contains the following elements (the proportions being indicated in percentages by weight of the alloy): Cr: ?23 to 34% Ti: 0.2 to 5% Ta: 0.5 to 7% C: 0.2 to 1.2% Ni: less than 5% Fe: less than 3% Si: less than 1% Mn: less than 0.5%, the balance consisting of cobalt and inevitable impurities. An article for the manufacture of mineral wool, especially fiberizing spinner, made of such an alloy.

Abstract: A non-woven web, comprising one or more polymeric fibers, wherein the number-average fiber diameter distribution of said one or more polymeric fibers conforms to a Johnson unbounded distribution. Non-woven webs comprising such polymeric fibers are rendered with mean-flow pore size and porosity desirable for specific filtration applications such as hepafiltration.

Abstract: Rotary spinning processes, more particularly processes for making hydroxyl polymer-containing fibers using a rotary spinning die, hydroxyl polymer-containing fibers made by the processes and webs made with the hydroxyl polymer-containing fibers are provided.

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

Abstract: A thin, uniform membrane comprising polymeric fibrils or a combination of fibrils and particles, wherein the fibrils have randomly convoluted cross-sections, and a process for making the membrane are disclosed. The membrane may be on the surface of a substrate as part of a composite sheet, or as a stand-alone structure.

Abstract: A fiberizing device includes a housing, a receiving seat mounted on the housing, and a drawing device. The receiving seat includes a receiving groove having a discharge port. The receiving groove receives molten fluid formed by heating waste. A heating device is provided for heating the molten fluid in the receiving seat. The drawing device draws the molten fluid from the discharge port to form a solid fiber after the molten fluid comes in contact with cool air. The solid fiber possesses excellent fire-resistant properties and thus can be used as fire-resistant materials.

Abstract: A method and a device for melt spinning and depositing synthetic filaments into a nonwoven material are described. The synthetic filaments are extruded and pulled off here simultaneously next to one another in several filament groups and deposited jointly on a belt. Taking into consideration a later final processing of the nonwoven material, the filaments of the filament groups are deposited next to one another to form separate filament webs which are guided next to and parallel to one another. Narrower nonwoven webs can be produced even from very large production widths. For this purpose, the extrusion means and the pull-off means are disposed above the belt in such a manner that the filaments of the filament groups can be laid to form separate nonwoven webs.

Abstract: A fiber making device, fiber making method, and apparatus which incorporates a series of two or more stacked, thin circular die plates, two end plates and two enclosure plates, where all of the plates cooperate to form a chamber having opposite ends and define a first end and a second end. The first end will receive material to be formed into fibers and the second end will receive a fiberizing fluid, although the second end could be used to supply a second fiber forming fluid to form composite fibers. All of the die plates have a central opening to receive fiber forming material, and at least one of the die plates has an outflow edge peripheral to the plate which will define a spinneret orifice, which is in fluid communication with said central opening, and which will allow the flow of material along a radial path through which fibers can be extruded.

Abstract: A simple and cost effective method of producing a polymer composite comprising a polymer matrix having metal nanoparticles incorporated therein comprises the steps of (i) mixing metal nanoparticles with a polymer dope; and (ii) solidifying the polymer composite from the dope. Antimicrobial fibres are produced by extruding a dope solution (1) held in a container (2) provided with an inert atmosphere (3) into a coagulating bath (4) containing a coagulant (5), by means of a pump (6) and a spinneret head (7) completely immersed in the coagulant. The dope is filtered via a filter (8) positioned behind the spinneret.

Abstract: The present invention relates to a method and an apparatus for spinning fibers, or fiberizers, using a rotary fiber-making die system made up of thin plates, embodied by a housing fixture, configured and stacked to define slots, channels and/or grooves through which the material used to make the fibers will flow. The die system allows for the production of different size and types of fibers, including nanofibers having a diameter of less than 1 micron, and facilitates a variety of cost effective methods for extrusion. The use of plates means the dies can be manufactured cost effectively, with easier clean-outs, replacements and/or variations.

Abstract: A method for producing fibers from waste includes heating waste into molten fluid having a temperature allowing rolling, rolling the molten fluid, and drawing the molten fluid after rolling by a centrifugal force and cooling the molten fluid to form solid fibers. The molten fluid is rolled to destroying tension and spreads out to increase free surface area. The molten fluid after rolling is drawn in a centrifugal direction and cooled with air cooling to form solid fibers.

Abstract: A melt-spun synthetic fiber and process for producing the fiber are described, the fiber including a fiber-forming synthetic polymer and a siloxane-based polyamide with a repeating unit having the formula (I) wherein n is a number in the range of 1-500 inclusive and specifics the number of repeating units of the siloxane-based polyamide, DP is the average degree of polymerization of the siloxane component of the siloxane-based polyamide and is in the range of 1-700 inclusive, X is selected from the group consisting of linear or branched alkylene chains having 1-30 carbon atoms, Y is selected from the group consisting of linear or branched alkylene chains having 1-40 carbon atoms, and each of the R1-R4 groups is independently selected from the group consisting of methyl groups, ethyl groups, propyl groups, isopropyl groups, siloxane chains, phenyl groups, and phenyl groups that have been substituted with 1-3 members selected from the group consisting of methyl groups and ethyl groups.