Загрузочное устройство экструдера

Центробежный экструдер для полимеров

Способ получения тонковолокнистой массы

Способ изготовления нетканого армированного материала

PROCEDURE FOR THE PRODUCTION OF BY GRAFTING A SILANE CONNECTION IN PRESENCE OF HUMIDITY INTERLACE-CASH THERMOPLASTICS OR ELASTOMERS

PROCEDURE AND DEVICE FOR EXTRUDING A CONTINUOUS MOLDED ARTICLE

PROCEDURE AND DEVICE FOR THE PRODUCTION OF PLASTIC PROFILES

CIGARETTE FILTER AND PROCEDURE FOR THEIR PRODUCTION

DEVICE FOR THE PROCESSING OF THERMOPLASTIC PLASTIC MATERIAL

OPTICAL PLASTIC PRODUCT, OPTICAL PLASTIC FIBER, DEVICE FOR THE PRODUCTION OF AN OPTICAL PLASTIC PART AND PROCEDURE FOR THE PRODUCTION OF AN OPTICAL PLASTIC PART AND AN OPTICAL PLASTIC PRODUCT

EXTRUDING PLANT WITH AT LEAST ONE DRAWOUT DEVICE

FILTER OR FILTER AS WELL AS PROCEDURE AND DEVICE FOR ITS PRODUCTION

DEVICE FOR THE PRODUCTION OF A OUTER-CALIBRATED PLASTIC PROFILE STRAND

MANTELDRAHT FOR THE PRODUCTION OF A TIRE, WITH THIS MANTELDRAHT OF EQUIPMENTS TIRE, DEVICE FOR THE PRODUCTION OF THIS MANTELDRAHTS AS WELL AS PLANT AND PROCEDURE FOR THE PRODUCTION OF THIS TIRE

STRENGTHENING FIBER BUNDLES FOR THE PRODUCTION OF FIBER-REINFORCED POLYMER COMPOUND MATERIALS

PROCEDURE AND DEVICE FOR TRANSPORTING AN EXTRUDED ROUND CORD FROM AN INDIA RUBBER MIXTURE TO A KALANDRIEREINRICHTUNG

PROCEDURE FOR THE PRODUCTION OF A EVOHZUSAMMENSETZUNG

DEVICE AND PROCEDURE FOR THE SHROUD BY CABLES AND THE SO THAT MANUFACTURED CABLES

FORM-STABLE BALLOONS

ALIGNED POLYMER COMPOSITION WITH NOT ALIGNED LAYER AND PROCEDURE FOR ITS PRODUCTION

PROCEDURE FOR THE PRODUCTION OF POLY (ALPHA OLEFIN) - SOLUTIONS WITH HIGH MOLECULAR WEIGHT AS WELL AS PROCEDURES FOR THE PRODUCTION OF ARTICLES

PROCEDURE FOR MANUFACTURING PRINTED CIRCUIT BOARDS AND PRINTED CIRCUIT BOARD

HEAD PIECE FOR EXTRUSION

DEVICE FOR THE PROCESSING OF THERMOPLASTIC PLASTIC MATERIAL

PROCEDURE FOR THE PRODUCTION OF CELEBRATIONS, POLYAROMATI KETONEN OR SULFONES

EXTRUDING DEVICE FOR MANUFACTURING A FIBRILLIERTEN PRE-PRODUCT OUT POLYTETRAFLUOR [THYLEN

DEVICE FOR REGULATION A TO COVERING UP METALLDRAHTEN CERTAIN PLANT

MATTE ONE FOR THE STABILIZATION OF THE GROUND

DEVICE FOR THE PRODUCTION OF AN INSULATING ELECTRICAL WIRE

PROCEDURE FOR THE PRODUCTION OF A WITH PLASTIC OF COVERED HIGH-VOLTAGE CABLE

COW FLAX DIRECTION FUR GOING THROUGH DRAHTE

PROCEDURE FOR PROCESSING INTERLACE-CASH OLEFIN POLYMERS

STRANGPRESSKOPF FOR MAKING A HOLLOW OF PROFILE OF THERMOPLASTIC PLASTIC

EXTRUSION PRESS FOR MANUFACTURING PROFILES AND/OR FOR THE UMHULLEN OF SUCH

PROCEDURE FOR THE PRODUCTION WARM AND SOUND-INSULATING CONDUITS

Interferometer arrangement

PROCEDURE FOR HERBEIFUHRUNG OF REPEATED VALENZBRUCKENBINDUNGEN IN POLYOLEFINS

PROCEDURE AND DEVICE FOR THE PRODUCTION OF SYNTHETIC FLASCHENVERSCHLÜSSE

FUSION BLOWING HEAD ALSO TO THE SPLIT BOARDS DEFINES ATTACHMENT AND PERPENDICULAR REMOVABLE ONE NOZZLE PACKAGE

RULE DEVICE FOR THE SUPPLY QUANTITY OF A PLASTIFIZIERBAREN MATERIAL

PROCEDURE FOR MANUFACTURING POLYMER FILAMENTS WITH LARGE TENSILE STRENGTH AND LARGE MODULE

PROCEDURE AND DEVICE FOR THE PRODUCTION OF A FIBER-LOADED PLASTIC MELT

PROCEDURE FOR THE PRODUCTION OF BY GRAFTING A SILANE CONNECTION IN PRESENCE OF HUMIDITY INTERLACE-CASH THERMOPLASTICS OR ELASTOMERS

PROCEDURE AND DEVICE FOR MANUFACTURING INSULATING WIRES

TRANSVERSE SPRAYING HEAD FOR SHEATH.

PROCEDURE FOR THE PRODUCTION OF ORGANO OPTICS AND ITS APPLICATION WITH THE PRODUCTION OF VORFORMLINGEN FOR POLYMERS OPTICAL FIBERS.

PROCEDURE AND DEVICE FOR MANUFACTURING INSULATING WIRES.

MORE KOEXTRUSIONSADAPTER.

DEVICE FOR THE PRODUCTION OF A OUTER-CALIBRATED PLASTIC PROFILE STRAND

ZUENDSCHNUR

PROCEDURE FOR THE FIBER FUSION IMPREGNATION

PROCEDURE FOR THE PRODUCTION FROM MATERIAL TO EXTRUSIONSFORMEN.

THERMOPLASTIC, FLEXIBLE ONE POLYMER MIXTURE.

FIBERS, BAENDER AND FOILS FROM ILLUMINATED PL AND PROCEDURES FOR THE PRODUCTION THE SAME.

POLYESTER COMPOSITIONS SUITABLY TO THE PRODUCTION OF FIBERS AND FOILS WITH HIGH MODULUS OF ELASTICITY

PROCEDURE AND DEVICE FOR THE INLET AND TREATMENT OF PLASTIC WATERING GENE

Plastifiziervorrichtung for a strand and/or an injection moulding press for processing thermoplastic material, in particular art off

COMPOUND FOAM STRUCTURE WITH ISOTROPIC AND ANISOTROPIC RANGES

Screen for seat or couch furniture, in particular Gartenstühle

Device for taking from melts off, in particular melts of organic kind, like plastics, and for the production of granulates

Extrusion press with two each other and relatively to each other swivelling disks oppositely arranged with distance

Procedure as well as device for the production of endless multifiler threads

Extruded course material and procedure for the production of the same

Extruding spraying head

PROCEDURE AND PLANT FOR THE PRODUCTION OF SEQUENTIAL RICE CLOSING LINK ROWS FROM THERMOPLASTIC PLASTIC

MEASURING INSTRUMENT FOR THE DETERMINATION OF THE WALL THICKNESS OF PLASTIC SHROUDS

PROCEDURE AND DEVICE FOR THE PRODUCTION OF ARTIFICIAL FIBERS

METERING UNIT FUR A PLASTIC PROCESSING SCHNECKENSPRITZGUSS-MASCHINE OR SCHNECKENSTRANGPRESSE

DEVICE FOR REGULATION A TO COVERING UP METALLDRAHTEN CERTAIN PLANT

PROCEDURE FOR MANUFACTURING FORMED FOILS WITH HIGH STRENGTH CONTENT

PROCEDURE AND DEVICE FOR THE EXTRUSION OF HOLLOW STRANDS FROM VEGETABLE SMALL ARTICLES

DEVICE FOR TRANSMITTING FROM FUSIONLIQUID PLASTIC WATERING GENE WITH STRAND CUTTER

PROCEDURE FOR THE HANDLING OF LIQUIDS OF MEANS OF A BUFFER TANK

MOLDED ARTICLE WITH A AMPHIPHILEN AN EXTERIOR PHASE AND A LIPOPHILIC INTERNAL PHASE

PROCEDURE FOR THE COAGULATION OF PLASTIC DISPERSIONS USING A DEVICE WITH SCHERELEMENTEN

Device to the extrusion of nets or with ribs provided courses

Device for manufacturing electrical cables, which exhibit building groups with reversing impact

BIODEGRADABLE COMPOSITIONS ON THE BASIS OF SORGHUM FLOUR, FROM IT MANUFACTURED MOLDED ARTICLES AND PROCEDURES FOR THE PRODUCTION OF THESE MOLDED ARTICLES

METHOD FOR THE PRODUCTION OF OPTICAL INDEX GRADIENT FIBERS FROM POLYMER MATERIAL

PROCEDURE FOR THE PRODUCTION OF A THERMALLY INSULATED CONDUIT

COEXTRUSION PROCEDURE AND MANUFACTURED ARTICLE

MONO FILAMENT AND PROCEDURE FOR THE PRODUCTION FROM ANGULAR DOUBLING RANK MONO FILAMENTS TO THE USE IN EDGE CUTTERS

Extruding stencil

COATINGS OUT POLYHYDROXYALKANOAT

ELONGATED FLEXIBLE ELEMENT WITH EXTRUDED CASING

THERMALDUCTILE POLYPROPYLENE FOAM PLATE

PASSPORT PASS

PROCEDURE AND DEVICE FOR THE PRODUCTION OF AN OPTICAL FIBER

Worm extruder for the processing of thermoplastic plastics

EXTRUSION PRESS FOR VEGETABLE SMALL ARTICLES

DEVICE FOR FILTERING A POLLUTED FLUID

PROCEDURE AND DEVICE FOR THE REGULATION OF THE COMPOSITION OF THE CELLULOSEHALTIGEN EXTRUDING SOLUTION WITH THE LYOCELLPROZESS

CARRIER FOR SHRINK-CASH SLEEVE TO CONNECTING ELECTRICAL CABLES AND DEVICE FOR CONNECTING

PRODUCING FILAMENT TOW FILTER ROD PRODUCING FILAMENT TOW FILTER ROD

Method for producing a composite molded part and composite molded part

The invention relates to a composite molded part (1), in particular produced in accordance with a method according to the invention, in particular for a wind turbine, comprising: a thermoplastic plastic and a fiber composite semi-finished product. Furthermore, according to the invention, the fiber composite semi-finished product comprises a flexible, braided-structure-like fiber system (20), and the thermoplastic plastic is distributed as a shaping core material (2A) in the flexible, braided-structure-like fiber system (20) of the fiber composite semi-finished product and is connected to the braided-structure-like fiber system (20), wherein the braided-structure-like fiber system (20) in the composite with the shaping core material (2A) has fibers (21, 22) oriented with respect to each other in such a way that the fibers cross each other, said fibers having a fiber angle at a crossing point which is between 10° and 90°, in particular between 30° and 60°, the fibers (21, 22) preferably being ...

Process and apparatus for manufacture of processable polyvinyl alcohol

The invention describes a method for the manufacture of a plasticised polyvinyl alcohol polymer mixture, the method comprising the steps of: introducing a polyvinyl alcohol polymer comprising at least 98wt% polyvinyl alcohol or a blend of the polymer into a mixing reactor; wherein the mixing reactor comprises a blending chamber having a primary inlet, a primary outlet and at least two inter-engaging components extending between the primary inlet and primary outlet, the components being arranged to apply a shearing force to the polymer while the polymer is conveyed by the components from the inlet through a reaction zone to the outlet; one or more secondary inlets located downstream from the primary inlet for introducing reactants comprising a processing agent and a plasticiser to the chamber to form a reaction mixture; wherein the blending chamber comprises a plurality of heated regions arranged so that the mixture is subjected to a controlled temperature profile; a secondary outlet located ...

SPOOL VALVE

METHOD AND SYSTEM FOR PRODUCING PLASTIC OPTICAL FIBER

A method and system are described for continuously producing plastic optical fiber. The method involves melting a polymeric starting material in a continuous screw extruder and then extruding the melted polymer vertically upward (i.e., against the force of gravity) to form a plastic optical fiber with a uniform core cross section.

FLAT PLASTIC OPTICAL FIBER AND ILLUMINATION APPARATUS USING SUCH FIBER

Substantially flat plastic optical fibers (see Fig. 6) with uniform core cross sections, methods and systems for making such fibers, and illumination devices incorporating such fibers are described.

FILTER CHANGING VALVE UNIT

POLYESTER YARN AND A PRODUCTION METHOD THEREFOR

Disclosed is a polyester yarn, wherein a room-temperature strength-elongation index (X) indicating a ratio (T/S) of tensile strength (T) to tensile elongation (S) of the polyester yarn, measured at room temperature, and a primary high-humidity strength-elongation index (X) indicating a ratio (T/S) of tensile strength (T) to tensile elongation (S) of the polyester yarn, measured after heat-treating the polyester yarn under conditions of a temperature of 85° C. and a relative humidity (RH) of 95±5% for 168 hours, are optimized in a predetermined range. 1. A polyester yarn , wherein a room-temperature strength-elongation index (X) indicating a ratio (T/S) of tensile strength (T) to tensile elongation (S) of the polyester yarn , measured at room temperature; and a primary high-humidity strength-elongation index (X) indicating a ratio (T/S) of tensile strength (T) to tensile elongation (S) of the polyester yarn , measured after heat-treating the polyester yarn under conditions of a temperature of 85° C. and a relative humidity of 95±5% for 168 hours , are represented by Calculation Formula 1 below:{'br': None, 'sup': 1', '0, '0.65≦X/X≦0.93\u2003\u2003Calculation Formula 1'}{'sup': 0', '0', '0', '0', '0, 'wherein Xis a room-temperature strength-elongation index indicating a ratio (T/S) of tensile strength (T) to tensile elongation (S) of the polyester yarn, measured at room temperature; and'}{'sup': 1', '1', '1', '1', '1, 'Xis a primary high-humidity strength-elongation index indicating a ratio (T/S) of tensile strength (T) to tensile elongation (S) of the polyester yarn, measured after heat-treating the polyester yarn under conditions of a temperature of 85° C. and a relative humidity of 95±5% for 168 hours.'}2. The polyester yarn of claim 1 , wherein a room-temperature strength-elongation index (X) indicating a ratio (T/S) of tensile strength (T) to tensile elongation (S) of the polyester yarn claim 1 , measured at room temperature; and a secondary high-humidity ...

POLYESTER-BASED TAPE, PROCESS FOR PRODUCING SAID TAPE AND USE THEREOF

The invention relates to a tape comprising from (i) about 75 wt % to about 99.9 wt % of a thermoplastic polyester, (ii) from about 0.1 wt % to about 25 wt % of a linear low-density polyethylene and (iii) from 0 wt % to about 5 wt % of other components, said tape having a thickness from 5 μm to 300 μm and a width from 0.5 mm to 7 mm. This tape shows no twinning and sticking to other tapes after slitting, has very good mechanical properties. When the tape is wound, bobbins having a regular shape can be obtained. 1. A tape comprising (i) from about 75 wt % to about 99.9 wt % of a thermoplastic polyester , (ii) from about 0.1 wt % to about 25 wt % of a linear low-density polyethylene and (iii) from 0 wt % to about 5 wt % of other components , wherein said tape has a thickness from 5 μm to 300 μm and a width from 0.5 mm to 7 mm.2. The tape according to claim 1 , wherein the intrinsic viscosity of the thermoplastic polyester component is at least 0.5 dL/g claim 1 , measured in phenol-1 claim 1 ,2dichlorobenzene at 25° C.3. The tape according to claim 1 , wherein the thermoplastic polyester is a poly(ethylene terephthalate)homopolymer or copolymer.43. The tape according to any of the preceding claim 1 , wherein the linear low-density polyethylene is an ethylene-1-butene copolymer claim 1 , an ethylene-1-pentene copolymer claim 1 , an ethylene-1-hexene copolymer claim 1 , an ethylene-1-heptene copolymer or an ethylene-1-octene copolymer.5. The tape according to claim 4 , wherein the linear low-density polyethylene is an ethylene-1-octene copolymer.6. The tape according to claim 1 , comprising from about 1.5 wt % to about 10 wt % of a linear low-density polyethylene.7. The tape according to claim 1 , wherein the tape is a uniaxially oriented tape.8. A process for making a tape according to claim 1 , further comprising:(a) extruding a composition comprising from (i) about 75 wt % to about 99.9 wt % of a thermoplastic polyester; (ii) from about 0.1 wt % to about 25 wt % of a ...

Method for Producing a Polyamide Nanofiber Product by Electrospinning, Polyamide Nanofiber Product, a Filter Medium with Polyamide Nanofiber Product, as well as a Filter Element with such a Filter Medium

In a method for producing a polyamide nanofiber product that contains PTFE particles, a spinning solution containing polyamide, PTFE, and a conductivity-increasing additive is provided and nanofibers are produced by electrospinning from the spinning solution. The conductivity-increasing additive is an acid-resistant additive; a surfactant additive; or an acid-resistant and surfactant additive and contains one or more organic salts. The polyamide nanofiber product with PTFE particles is used in filter media and is especially applied to a filter layer of cellulose or synthetic material. 1. A method for producing a polyamide nanofiber product that contains PTFE (polytetrafluoroethylene) particles , in particular adhering PTFE particles , the method comprising:providing a spinning solution containing polyamide, PTFE, and a conductivity-increasing additive;electrospinning nanofibers from the spinning solution.2. The method according to claim 1 , wherein the conductivity-increasing additive is an acid-resistant additive; a surfactant additive; or an acid-resistant and surfactant additive.3. The method according to claim 1 , wherein the conductivity-increasing additive comprises one or more organic salts.4. The method according to claim 3 , wherein the organic salt is a quaternary ammonium compound.5. The method according to claim 4 , wherein the quaternary ammonium compound is tetraethyl ammonium ethyl sulfate.6. The method according to claim 1 , wherein the spinning solution contains PTFE in a range of 0.1% by weight to 10% by weight based on the basic batch weight of the spinning solution.7. The method according to claim 6 , wherein the spinning solution contains PTFE in a range of 5% by weight to 7.5% by weight based on the basic batch weight of the spinning solution.8. The method according to claim 1 , wherein the spinning solution contains the conductivity-increasing additive in a range of 0.1% by weight to 10% by weight of the basic batch weight of the spinning ...

NANOFIBER ELECTRODE AND METHOD OF FORMING SAME

In one aspect, a method of forming an electrode for an electrochemical device is disclosed. In one embodiment, the method includes the steps of mixing at least a first amount of a catalyst and a second amount of an ionomer or uncharged polymer to form a solution and delivering the solution into a metallic needle having a needle tip. The method further includes the steps of applying a voltage between the needle tip and a collector substrate positioned at a distance from the needle tip, and extruding the solution from the needle tip at a flow rate such as to generate electrospun fibers and deposit the generated fibers on the collector substrate to form a mat with a porous network of fibers. Each fiber in the porous network of the mat has distributed particles of the catalyst. The method also includes the step of pressing the mat onto a membrane. 1. A method of forming an electrode for an electrochemical device , comprising the steps of:(a) mixing at least a first amount of a catalyst and a second amount of an ionomer or an uncharged polymer to form a solution;(b) delivering the solution into a metallic needle having a needle tip;(c) applying a voltage between the needle tip and a collector substrate positioned at a distance from the needle tip;(d) extruding the solution from the needle tip at a flow rate such as to generate electrospun fibers and deposit the generated fibers on the collector substrate to form a mat comprising a porous network of fibers, wherein each fiber has a plurality of particles of the catalyst distributed thereon; and(e) pressing the mat onto a membrane.2. The method of claim 1 , wherein the catalyst comprises platinum-supported carbon (Pt/C).3. The method of claim 1 , wherein the ionomer or uncharged polymer comprises Nafion®.4. The method of claim 1 , wherein forming the solution further comprises mixing a third amount of a second polymer with the first amount of catalyst and second amount of ionomer or uncharged polymer.5. The method of claim ...

PROCESS FOR PRODUCING HIGH-PERFORMANCE POLYMER FIBERS

The present invention relates to a process for the preparation of polymer filaments having a high tensile strength and modulus by extrusion of a solution of a solvent and linear high-molecular weight polymer and subsequent spinning and quenching of the filaments thus formed, wherein after spinning and quenching the as-spun filaments are stretched under contact with steam for removing the solvent from filaments being stretched. 1. A process for the preparation of polymer filaments having a high tensile strength and modulus comprising:a) extrusion of a solution of a solvent and linear high-molecular weight polymer;b) spinning and quenching of filaments formed in step (a); andc) stretching the as-spun filaments under contact with steam thereby removing the solvent from the filaments.2. The process according to claim 1 , wherein the solvent and steam are not miscible.3. The process according to claim 2 , wherein the solvent has a boiling point of >100° C. at atmospheric pressure.4. The process according to claim 1 , wherein the steam temperature is between 120-150° C. and the pressure is atmospheric pressure.5. The process according to claim 1 , wherein contact with steam and the filaments during stretching occurs under conditions such that filaments entering the area where stretching takes place encounter a lower steam temperature than filaments leaving the area.6. The process according to claim 1 , wherein the solvent removed during stretching is recovered.7. The process according to claim 6 , wherein the recovered solvent is re-used as solvent in the process for the preparation of polymer filaments.8. The process according to claim 1 , wherein the stretched filaments undergo a post drawing step.9. The process according to claim 8 , wherein the post drawing step is carried out in an oven at a temperature above 130° C.10. The process according to claim 1 , wherein during stretching the filaments there is no contact between filaments and rollers.11. The process ...

BIODEGRADABLE COMPOSITES

The present invention concerns a biodegradable cigarette filter tow comprising composite filaments of cellulose and cellulose acetate, wherein the composite filaments are entangled or wherein the two further comprises one or more further thermoplastic materials or wherein the weight ration of cellulose to cellulose acetate in the tow is from 10:90 to 90:10, and a process for making such a filter tow comprising providing a solution dope comprising a blend of cellulose and cellulose acetate in an ionic liquid or in N-methylmorphilone-N-oxide (NMMO), and spinning casting the blend into a protic solvent to generate fibres or films, and converting the fibres or films into cigarette filter tow. The invention also concerns cigarette filters and cigarettes made from such a filter tow. 1. A biodegradable cigarette filter tow comprising composite filaments of cellulose and cellulose acetate , and further comprising one or more further thermoplastic materials.2. The filter tow according to claim 1 , wherein the further thermoplastic material is selected from one or more of PHB claim 1 , PHVB claim 1 , polyacrylonitrile (PAN) claim 1 , poly-2-hydroxyethylmethylacrylate (PHEMA) claim 1 , polyvinylalcohol (PVA) claim 1 , polyaniline and polyethylene glycol.3. A biodegradable cigarette filter tow claim 1 , comprising:composite filaments of cellulose and cellulose acetate,wherein the weight ratio of cellulose to cellulose acetate is from 10:90 to 90:10.4. The filter tow according to claim 3 , wherein the ratio of cellulose to cellulose acetate is from 20:80 to 80:20.5. The filter tow according to claim 4 , wherein the ratio of cellulose to cellulose acetate is from 30:70 to 70:30.6. A biodegradable cigarette filter tow claim 4 , comprising entangled composite filaments of cellulose and cellulose acetate.7. The filter tow according to claim 1 , further comprising one or more plasticisers.8. The filter tow according to claim 1 , further comprising a catalyst promoting oxidative ...

Organic-inorganic hybrid nanofibres having a mesoporous inorganic phase, preparation thereof by electrospinning, membrane, electrode, and fuel cell

Organic-inorganic hybrid nanofibres comprising two phases: a first mineral phase comprising a structured mesoporous network with open porosity; and a second organic phase comprising an organic polymer, wherein said organic phase is basically not present inside the pores of the structured mesoporous network. A membrane and an electrode comprising said nanofibres. A fuel cell comprising said membrane and/or said electrode. A method of preparing said nanofibres by electrically assisted extrusion (electrospinning).

Method and Apparatus for Producing Carbon Fiber

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. 1. A centrifugal spinning head for producing fibers comprising:an outer housing that forms an interior volume, the outer housing having an outer shell with a plurality of exterior apertures;an inner screen positioned inside said interior volume and spaced from the outer shell to form a gap therebetween, the inner screen including a plurality of interior apertures; andwherein a fiber precursor material is received in said interior volume, and upon spinning the head, flows through the interior apertures, into the gap and thereafter through the exterior apertures.2. The centrifugal spinning head of further comprising a heating element positioned within the interior volume.3. The centrifugal spinning head of wherein the outer shell is generally cylindrical.4. The centrifugal spinning head of wherein the inner screen extends the around the entire circumference of the interior volume.5. The centrifugal spinning head of wherein the ratio of the total area of the plurality of interior apertures divided by the total area of the plurality of exterior apertures is from about 0.1 to about 100.6. The centrifugal spinning head of wherein the ratio of the total area of the plurality of interior apertures divided by the total area of the plurality of exterior apertures is from between about 0.5 to about 10.7. The centrifugal spinning head of wherein the plurality of exterior apertures have a diameter of from about 0.5 to about 5 millimeters.8. The centrifugal spinning head of wherein the plurality of exterior apertures have a diameter of from about 1 to about 2 millimeters.9. The centrifugal spinning head of wherein the plurality of interior apertures have a diameter of from about 0.5 to about 5 millimeters.10. The centrifugal spinning head of wherein the plurality of interior apertures have a diameter of from ...

SYSTEMS, DEVICES AND METHODS FOR THE FABRICATION OF POLYMERIC FIBERS

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. 1. A device for the formation of a micron , submicron or nanometer dimension polymeric fiber , the device comprising:a reservoir for holding a polymer, the reservoir including one or more orifices for ejecting the polymer during fiber formation, thereby forming a micron, submicron or nanometer dimension polymeric fiber; anda collection device for accepting the formed micron, submicron or nanometer dimension polymeric fiber;wherein at least one of the reservoir and the collection device employs linear and/or rotational motion during fiber formation.2. The device of claim 1 , further comprising:a linear motion generator for imparting the linear motion to the at least one of the reservoir and the collection device.3. The device of claim 2 , wherein the linear motion generator also imparts a rotational motion to the at least one of the reservoir and the collection device.4. (canceled)5. (canceled)6. The device of claim 1 , wherein both of the reservoir and the collection device oscillates in a linear manner during fiber formation.7. A device for the formation of a micron claim 1 , submicron or nanometer dimension polymeric fiber claim 1 , the device comprising:a reservoir for holding a polymer, the reservoir including one or more orifices for ejecting the polymer during fiber formation, thereby forming micron, submicron or nanometer dimension polymeric fibers; andan air vessel for circulating a vortex of air around the formed fibers to wind the fibers into one or more threads.8. The device of claim 7 , further comprising:a collection device for accepting the formed micron, submicron or nanometer dimension polymeric fibers.9. The device of claim 8 , wherein the collection device is rotating or stationary.10. (canceled)11. The device of claim 7 , wherein ...

SYSTEMS AND METHODS OF SUPPLYING MATERIALS TO A ROTATING FIBER PRODUCING DEVICE

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. 1. A microfiber and/or nanofiber producing system comprising:a fiber producing device comprising a body comprising one or more openings, wherein the body is configured to receive a material to be produced into a fiber;a coupling member comprising a material delivery conduit, wherein the material is conveyed through the material delivery conduit of the coupling member into the body during use,a driver capable of rotating the fiber producing device, wherein the fiber producing device is couplable to the driver through the coupling member; andwherein, during use, rotation of the fiber producing device causes material in the body to be passed through one or more openings to produce microfibers and/or nanofibers.2. The system of claim 1 , wherein the material delivery conduit of the coupling member is configured to convey a pressurized fluid to the body while the fiber producing device is being rotated.3. The system of claim 1 , wherein the coupling member further comprises a driving conduit coupled to the body of the fiber producing device claim 1 , wherein the material delivery conduit is disposed within the driving conduit claim 1 , and wherein the driving conduit rotates around the material delivery conduit during use.4. The system of claim 3 , wherein the material delivery conduit is stationary while the driving conduit is being rotated.5. The system of claim 1 , wherein the material delivery conduit is not in contact with the fiber producing body.6. The system of claim 1 , wherein the driver comprises a direct drive device.7. The system of claim 1 , wherein a ...

METHOD FOR ELECTROSPINNING A GRAFT LAYER

A method for making a graft layer is provided. The graft layer has at least two layers with different porosities. The two layers are applied by electrospinning. The parameters of the electrospinning may be varied when applying the first and second layers in order to achieve different porosities of the first and second layers. 1. A method of making a stent-graft with an inner layer and an outer layer where the outer layer is less porous than the inner layer , comprising:applying a first charge to a mandrel;applying a second charge to a first needle;rotating and translating said mandrel and said first needle relative to each other;dispensing a first polymer mixed with a first solvent through said first needle at a first flow rate, a first layer of fibers thereby being electrospun onto said mandrel;disposing a stent onto said first layer;applying a third charge to said mandrel;applying a fourth charge to a second needle;rotating and translating said mandrel and said second needle relative to each other; anddispensing a second polymer mixed with a second solvent through said second needle at a second flow rate, a second layer of fibers thereby being electrospun onto said stent;wherein said second needle has a larger lumen than said first needle and said second flow rate is higher than said first flow rate.2. The method according to claim 1 , wherein said first polymer mixed with said first solvent and said second polymer mixed with said second solvent comprises a polyetherurethane urea blended with a siloxane containing surface modifying additive mixed with dimethylacetamide.3. The method according to claim 2 , wherein said first polymer mixed with said first solvent and said second polymer mixed with said second solvent comprises about 10% to about 23.5% by weight of the polyetherurethane urea blended with a siloxane containing surface modifying additive.4. The method according to claim 1 , wherein said first needle has a lumen about 0.011″ to about 0.014″ in diameter ...

FILAMENT FOR EXTRUSION-BASED ADDITIVE MANUFACTURING SYSTEM

A filament is fed to an extrusion head. The filament has a semi-crystalline polymeric reinforcement portion and a polymeric matrix portion. The reinforcement and matrix portions run continuously along a length of the filament. The reinforcement portion has a higher melting point and a higher crystallinity than the matrix portion. The temperature of the filament is raised in the extrusion head above the melting point of the matrix portion but below the melting point of the reinforcement portion so that the matrix portion of the filament melts within the extrusion head, thereby forming a partially molten filament within the extrusion head. The partially molten filament is extruded from the extrusion head onto a substrate, the reinforcement portion of the partially molten filament remaining in a semi-crystalline state as it is extruded from the extrusion head. Relative movement is generated between the extrusion head and the substrate as the partially molten filament is extruded onto the substrate in order to form an extruded line on the substrate. The matrix portion of the extruded line solidifies after the extruded line has been formed on the substrate. 1. A filament for use in an extrusion-based additive manufacturing method , the filament comprising:a semi-crystalline polymeric reinforcement portion which runs continuously along a length of the filament; anda solid polymeric matrix portion which runs continuously along a length of the filament,wherein the reinforcement portion has a higher melting point and a higher crystallinity than the matrix portion.2. The filament of wherein the reinforcement portion and the matrix portion are intertwined with each other so that they both follow tortuous paths along the length of the filament.3. The filament of wherein the reinforcement portion and the matrix portion are twisted together so that they both follow helical paths along the length of the filament.4. The filament of wherein the reinforcement portion comprises a ...

APPARATUSES AND METHODS FOR SHAPING AN EXTRUDABLE MATERIAL

An apparatus () for shaping an extrudable material () comprises a sleeve (), comprising a first sleeve end (), a sleeve inlet () at the first sleeve end (), a second sleeve end (), opposite the first sleeve end (), and a sleeve outlet () at the second sleeve end (). The extrudable material () enters the sleeve () through the sleeve inlet () and exits the sleeve () through the sleeve outlet (). The apparatus () further comprises an actuation mechanism (), selectively operable to change at least one of a size or a shape of the sleeve outlet (). The sleeve () is sufficiently flexible to enable the actuation mechanism () to change at least one of the size or the shape of the sleeve outlet (). The sleeve () is insufficiently stretchable to enable the actuation mechanism () to stretch the sleeve (). 1110140110. An apparatus () for shaping an extrudable material () , the apparatus () comprising:{'b': 126', '186', '148', '186', '188', '186', '132', '188', '140', '126', '148', '126', '132, 'a sleeve (), comprising a first sleeve end (), a sleeve inlet () at the first sleeve end (), a second sleeve end (), opposite the first sleeve end (), and a sleeve outlet () at the second sleeve end (), wherein the extrudable material () enters the sleeve () through the sleeve inlet () and exits the sleeve () through the sleeve outlet (); and'}{'b': 172', '132, 'an actuation mechanism (), selectively operable to change at least one of a size or a shape of the sleeve outlet (); and'} [{'b': 126', '172', '132, 'the sleeve () is sufficiently flexible to enable the actuation mechanism () to change at least one of the size or the shape of the sleeve outlet (); and'}, {'b': 126', '172', '126, 'the sleeve () is insufficiently stretchable to enable the actuation mechanism () to stretch the sleeve ().'}], 'wherein2110172. The apparatus () according to claim 1 , wherein the actuation mechanism () further comprises:{'b': '122', 'a plurality of actuators (); and'}{'b': 128', '126, 'a plurality of ...

BICOMPONENT NONWOVEN FABRIC HAVING AN IMPROVED STRENGTH AND AIR PERMEABILITY AND MANUFACTURING METHOD THEREOF

A nonwoven fabric having improved air permeability and strength is formed with a filament of sheath-core shape, the core part being constituted with blending a polyethylene terephthalate (PET) having melting point (Tm) of 250˜270° C. of 40 to 60 parts by weight with a polytrimethylene terephthalate (PTT) having melting point of 215˜235° C. of 10 to 50 parts by weight, the sheath part being constituted with a polyethylene terephthalate (PET) having melting point of 210˜230° C. of 10 to 30 parts by weight, and the core and sheath parts being spun with conjugate respectively, and formed with a web. The bicomponent nonwoven fabric uses a bicomponent polymer and improved spin method with conjugate and blending spinning to produce PTT nonwoven fabric having an improved strength and air permeability and soft property and proper resistance which are required for a variety of uses and to produce it economically. 1. The bicomponent nonwoven fabric having improved strength and air permeability which is formed with a filament of sheath-core shape , wherein the core part is constituted with blending a polyethylene terephthalate (PET) having melting point (Tm) of 250 18 270° C. of 40 to 60 parts by weight with a polytrimethylene terephthalate (PTT) having melting point of 215˜235° C. of 10 to 50 parts by weight , and the sheath part is constituted with a polyethylene terephthalate (PET) having melting point of 210˜230° C. of 10 to 30 parts by weight , and the said core and sheath parts are spun with conjugate respectively , and then formed with a web.2. The nonwoven fabric of claim 1 , wherein the said nonwoven fabric is formed by heat pressing the said web with free-embossing or embossing pattern of single or multi layer.3. The nonwoven fabric of claim 1 , wherein a basic weight of the said nonwoven fabric is 40 to 100 g/m.4. The nonwoven fabric of claim 1 , wherein the air permeability of the said nonwoven fabric is above 200 ccs.5. The nonwoven fabric of claim 1 , wherein the ...

Polymer composition, electronic device and method of manufacturing the same

The present disclosure relates to a polymer composition including eco-friendly materials, an electronic device and a method of manufacturing the same. The polymer composition according to an aspect of the present disclosure includes a thermoplastic resin at 30 to 70 parts by weight; an eco-friendly resin, including a bio-resin, at 1 to 50 parts by weight; and a silicone resin at 1 to 60 parts by weight based on the total weight of the polymer composition.

Spun-Blown Non-Woven Web

A spun-blown non-woven web is disclosed which is formed from a plurality of fibers formed from a single polymer having an average fiber diameter ranging from between about 0.5 microns to about 50 microns; a basis weight of at least about 0.5 gsm; a tensile strength, measured in a machine direction, ranging from between about 20 g to about 4,200 g; a ratio of tensile strength, measured in the machine direction, to basis weight of at least about 20:1; and a ratio of percent elongation, measured in the machine direction, to fiber diameter of at least about 15. 1. A spun-blown , nonwoven web comprising a plurality of fibers formed from a single molten polymer having an average fiber diameter ranging from between about 0.5 microns to about 50 microns; a basis weight of at least about 0.5 gsm; a tensile strength , measured in a machine direction , ranging from between about 20 g to about 4 ,200 g; a ratio of tensile strength , measured in the machine direction , to basis weight of at least about 20:1; and a ratio of percent elongation , measured in the machine direction , to fiber diameter of at least about 15.2. The spun-blown non-woven web of wherein said web has a percent elongation claim 1 , measured in the machine direction claim 1 , of at least about 80%.3. The spun-blown non-woven web of wherein said web has a percent elongation claim 1 , measured in the machine direction claim 1 , of from between about 50% to about 400%.4. The spun-blown non-woven web of wherein said web has a percent elongation claim 1 , measured in the cross direction claim 1 , of at least about 80%.5. The spun-blown non-woven web of wherein said web has a percent elongation claim 1 , measured in the cross direction claim 1 , of from between about 50% to about 400%.6. The spun-blown non-woven web of wherein said polymer is a homopolymer claim 1 , and said web has a ratio of tensile strength claim 1 , measured in the machine direction claim 1 , to basis weight ranging from between about 20:1 to ...

METHOD FOR PRODUCING FILAMENTS OF POLYACRYLONITRILE AND EXTRUSION HEAD FOR CARRYING OUT SAID METHOD

A method for producing filaments of polyacrylonitrile and an extrusion head for carrying out said method are provided, wherein the method comprises preparing a polyacrylonitrile polymer solution and passing said solution through an extruder plate that determines the formation of filaments, a central chamber being defined between the extruder plate and a floating plate connected to a vibrating system, said chamber being surrounded by a peripheral chamber into which the polymer solution is introduced under pressure. The polymer solution then passes through to the central chamber via small radial conduits that accelerate the material, and is subjected to vibration in the central chamber before passing through the extruder plate. 1. A method for producing filaments of polyacrylonitrile , comprising preparing a polyacrylonitrile polymer solution and passing said solution through an extruder plate that determines the formation of filaments , which are introduced in a coagulating medium , before the extrusion step in the extruder plate , the material of the polymer solution to be extruded is subjected to a vibration which is applied by a floating plate connected to a vibrating system , said material of the polymer solution passing into the pre-extrusion vibrating area via radial conduits that accelerate the material.2. The method for producing filaments of polyacrylonitrile according to claim 1 , wherein the vibration that is applied to the material of the polymer solution is generated by ultrasound by a piezoelectric device formed by a high-frequency sonotrode.3. The method for producing filaments of polyacrylonitrile according to claim 1 , wherein back pressure offsetting the pressure of the fluid material of the polymer solution is applied on the floating plate.4. An extrusion head for carrying out the method of claim 1 , comprising an inlet for introducing a polyacrylonitrile polymer solution under pressure and an extruder plate provided with calibrated holes for ...

System and Method for Producing Artificial Turf Filaments

A system and method for producing artificial turf filaments according to one example embodiment includes an artificial turf filament, a first air drawn oven for heating the filament, a roll stand for applying an aqueous liquid to the filament and a second air drawn oven for heating the filament. In multiple embodiments, the filament has a latent helix shape when exposed to manufacturing or ambient heat. 1. A system for producing artificial turf surfaces , comprising:an artificial turf filament;a first air drawn oven for heating the filament;a roll stand for applying an aqueous liquid to the filament; anda second air drawn oven for heating the filament.2. The system of claim 1 , wherein the filament has a latent helix shape when exposed to manufacturing or ambient heat.3. The system of claim 2 , wherein the filament has the latent helix shape when exposed to manufacturing heat of about 85° C.4. The system of claim 2 , wherein the filament has the latent helix shape when exposed to ambient heat of about 65.56° C.5. The system of claim 1 , further comprising a spinneret having holes for melt extrusion.6. The system of claim 5 , wherein the filament is produced through melt extrusion.7. The system of claim 6 , wherein the extruded filament has fine surface distortions.8. A method for installing artificial turf surfaces claim 6 , comprising the following steps:producing an artificial turf surface having artificial turf filaments that exhibit a latent helix shape when exposed to ambient heat;installing the artificial turf surface while the artificial turf filaments are straight; andexposing the artificial turf filaments to ambient heat after installation.9. The method of claim 8 , wherein the ambient heat is about 65.56° C.10. The method of claim 8 , wherein the artificial turf filaments have fine surface distortions. This application claims the benefit of U.S. Provisional Application No. 62/356,085, entitled “System And Method For Producing Artificial Turf Filaments” and ...

Fiber optic cables with access features and methods of making fiber optic cables

Cables are constructed with extruded discontinuities in the cable jacket that allow the jacket to be torn to provide access to the cable core. The discontinuities can be longitudinally extending strips of material in the cable jacket.

Method for Preparing Fibrous Polymeric Adsorption Material

A method of preparing a fibrous polymeric adsorption material includes preparing a linear polymer yarn from a linear polymer via melt-blow spinning, the linear polymer having a molecular weight of 15,000 to 20,000 g/mol; treating the linear polymer yarn with a crosslinking agent and a porogen agent; and heating the treated linear polymer yarn at 130 to 150° C. for 25 to 35 seconds to obtain the fibrous polymeric adsorption material. The fibrous polymeric adsorption material includes fibers with a diameter of 4 to 6 microns. The crosslinking agent is in an amount of 1 to 3 weight % of the linear polymer. The crosslinking agent is a diacrylate ester compound having Formula J1, J2 or J3. The porogen agent is in an amount of about 1 weight % of the fibrous polymeric adsorption material. 2. The method of claim 1 , wherein the linear polymer is a linear long chain ester of methacrylic acid claim 1 , a methacrylic acid alkyl ester claim 1 , a 9-(12-((4-vinylbenzyl)oxy)dodecyl) fused ring aromatic hydrocarbon claim 1 , or a 12-(fused-aromatic-ring-9-yl)dodecyl esters claim 1 , the long chain ester of methacrylic acid having a C-Cstraight alkyl chain; the methacrylic acid alkyl ester having a C-Cstraight-chain alkyl; and the fused ring aromatic hydrocarbon being benzene claim 1 , naphthalene claim 1 , or anthracene.3. The method of claim 1 , wherein a melting point of the linear polymer is about 150° C.4. The method of claim 1 , wherein the porogen agent is modified paraffin.5. The method of claim 4 , wherein the modified paraffin is prepared by a process comprising:mixing solid paraffin with an aqueous dispersant solution, the aqueous dispersant solution having a concentration of 1-100 mg/mL;stirring the mixture of the solid paraffin and the aqueous dispersant solution at 60-100° C.;adding an acrylate monomer and benzoyl peroxide to the mixture of the solid paraffin and the aqueous dispersant solution to initiate a polymerization reaction;running the polymerization reaction ...

LOW COST SPINNING AND FABRICATION OF HIGH EFFICIENCY (HE) HAEMODIALYSIS FIBERS AND METHOD THEREOF

The present invention relates to an apparatus and a method to spin hollow fibres of dialysis grade with diameter around 220 microns and thickness of around 35-40 microns, by wet spinning technique. The present invention spinning is carried out by using an apparatus having a nitrogen cylinder (), water bucket (), polymer cylinder (), water cylinder (), automatic winding machine () characterized by a cheap assembly of syringes (dispo van () and insulin syringes ()) wherein no electrical power is required for the spinning, making the fibres extremely easy to manufacture and affordable at the consumer end. 1. An apparatus to spin hollow fibres of dialysis grade , said apparatus comprising a cylinder containing gas , a bucket means for storage and/or collection of water ,an automatic winding machine, an assembly of needles characterized in that the said assembly of needles comprising dispo van syringe having a dispo van needle defining an outer needle; andinsulin syringe having an insulin needle defining an inner needle inserted inside said outer needle at an appropriate angle.2. An apparatus as claimed in claim 1 , wherein the said inner needle is bent at an angle of about 120° and inserted into the said outer needle.3. An apparatus as claimed in claim 1 , wherein the said outer needle is a dispo van size 22 needle having around 700 microns diameter.4. An apparatus as claimed in claim 1 , wherein the said inner needle is a 32 gauge insulin needle having around diameter of 230 microns.5. An apparatus as claimed in claim 1 , wherein the said inner needle is adapted to carry anti solvent used for phase inversion.6. An apparatus as claimed in claim 1 , wherein the said outer needle and said inner needle arrangement defines a shell through which the polymer flows.7. An apparatus as claimed in claim 1 , wherein the said needles are sealed with so as to prevent any leakage and withstand the tensions/stresses developed during spinning.8. An apparatus as claimed in claim 1 , ...

CONSUMABLE DOWNHOLE PACKER OR PLUG

A packer or plug for use in a wellbore includes: a tubular mandrel made from a composite material including a pyrotechnic composition; an expandable seal disposed on an outer surface of the mandrel; and an igniter operable to initiate combustion of the mandrel. 1. A method of fracturing a production zone in a wellbore , comprising:deploying a packer or plug into the wellbore, the packer or plug comprising a composite material made from a pyrotechnic composition;perforating a casing of the wellbore adjacent the production zone;fracturing the production zone; andexposing a charge of the packer or plug to wellbore fluid to ignite the packer or plug.2. The method of claim 1 , further comprising exposing the charge of the packer or plug to wellbore fluid after fracturing the production zone.3. The method of claim 1 , further comprising exposing the charge of the packer or plug to wellbore fluid after a predetermined time period.4. The method of claim 1 , further comprising operating an igniter to expose the charge of the packer or plug to wellbore fluid.5. The method of claim 4 , wherein operating the igniter comprises:opening a pressure port of the igniter;releasing a solvent into an annular chamber of the packer or plug; anddissolving at least one solute plug to expose the annular chamber to wellbore fluid.6. The method of claim 4 , wherein operating the igniter comprises:increasing a pressure in the wellbore to a predetermined pressure;operating a switch in response to the predetermined pressure; andopening a valve to expose an annular chamber of the packer or plug to wellbore fluid.7. The method of claim 1 , further comprising closing a bore of the packer or plug before fracturing the production zone.8. The method of claim 1 , further comprising deploying a second packer or plug into the wellbore;perforating the casing of the wellbore adjacent a second production zone; andfracturing the second production zone.9. The method of claim 8 , wherein the second packer or ...

POLYPHENYLENE SULFIDE FIBER, FILTER CLOTH COMPRISING POLYPHENYLENE SULFIDE FIBER, AND METHOD FOR PRODUCING POLYPHENYLENE SULFIDE FIBER

The present invention provides: a polyphenylene sulfide fiber that has excellent tensile strength; and a polyphenylene sulfide fiber that decreases in toughness to a small extent even when subjected to a long-term heat treatment and has excellent tensile strength. The polyphenylene sulfide fiber according to the present invention is characterized by comprising a polyphenylene sulfide resin having a weight average molecular weight of 50000 to 80000 inclusive, having a rigid amorphous content of 50% or more, and having a crystal size of 5 nm or more in the direction of a (111) crystal plane. 1. A polyphenylene sulfide fiber comprising a polyphenylene sulfide resin having a weight average molecular weight of 50000 or more and 80000 or less , the polyphenylene sulfide fiber having a rigid amorphous content of 50% or more and a crystallite size in a direction of a (111) crystal plane of 5 nm or more.2. The polyphenylene sulfide fiber according to claim 1 , wherein the tensile strength of the polyphenylene sulfide fiber is 5.0 cN/dtex or more and the rate of decrease in toughness of the polyphenylene sulfide fiber after a 24-week heat treatment at a temperature of 180° C. is 30% or less.3. A filter cloth comprising the polyphenylene sulfide fiber recited in .4. A method for producing a polyphenylene sulfide fiber claim 1 , comprising: melting a polyphenylene sulfide resin having a weight average molecular weight of 50000 or more and 80000 or less at 280° C. or higher and 340° C. or lower and extruding the polyphenylene sulfide resin through a spinneret into an undrawn yarn claim 1 , collecting the undrawn yarn at a haul-off rate of 500 m/minute or more and 5000 m/minute or less claim 1 , and then hot-drawing the undrawn yarn at 2 times or more and 4 times or less claim 1 , subjecting the yarn to a fixed-length heat treatment at 190° C. or higher and 270° C. or lower for 4 seconds or longer and 12 seconds or shorter claim 1 , and thereafter subjecting the yarn to a relaxed ...

METHOD FOR PRODUCING A MILK PROTEIN BASED PLASTIC MATERIAL (MP BASED PLASTIC MATERIAL)

The disclosure relates to a milk protein based plastic material produced according to a plastic material shaping method, known by a person skilled in the art and the literature, in which at least one protein, which is obtained from milk and which can be thermally plasticized, is plasticized using a plasticizing agent, such as for example water or glycerol at temperatures of between room temperature and 140° C., subjected to mechanical stress and subsequently retreated according to a production method, known to person skilled in the art and literature, to form moulded bodies. 1. A method for the production of a milk protein based plastic material composed of a homogenous polymer on the base of proteins obtained from milk , which proteins are plasticized by addition of heat and a plasticizer and under mechanical stress.2. A method according to claim 1 , characterized in that the polymer mass is processed by means of an extruder.3. A method according to or claim 1 , characterized in that the production of the milk protein based plastic materials is a continuous or a discontinuous process.4. A method according to one of the preceding claims claim 1 , characterized in that the milk protein based plastic materials are preferably produced from renewable raw materials and are biodegradable.5. A method according to one of the preceding claims claim 1 , characterized in that at least one protein obtained from milk is plasticized and processed together with a plasticizer under mechanical stress.6. A method according to one of the preceding claims claim 1 , characterized in that the plasticizing takes place at temperatures of up to 140° C.7. A method according to one of the preceding claims claim 1 , characterized in that the protein obtained from milk is either produced in situ by precipitation from milk or is used in form of a protein that has been separately obtained before and claim 1 , if required claim 1 , been prepared or in form of a protein fraction.8. A method ...

System For Cooling A Cable

A cooling system () for cooling a cable (). The system () comprises: —at least one fixed cooling channel (), which is arranged downstream of an extrusion head (EH); and —at least one multi-pass apparatus (), which in turn comprises a set of fixed pulleys (), and a fixed, motor-driven capstan () designed to wind the cable (). The system () is characterized in that the multi-pass apparatus () comprises a movable pulley () designed to translate along vertical guides (A, B). The movable pulley () and the vertical guides (A, B) are contained in a cooling device () for cooling the cable (). 110010. A cooling system () for cooling a cable ();{'b': '100', 'claim-text': [{'b': '20', 'at least one fixed cooling channel (), which is arranged downstream of an extrusion head (EH); and'}, {'b': 30', '32', '33', '34', '35', '32', '33', '34', '35', '10, 'at least one multi-pass apparatus () comprising a set of fixed pulleys (, , ) and a fixed, motor-driven capstan (); said set of fixed pulleys (, , ) and said capstan () being designed to wind said cable ();'}], 'the system () comprising{'b': 100', '30', '36', '39', '39', '36', '39', '39', '56', '10, 'the system () being characterized in that said multi-pass apparatus () comprises a movable pulley (), which is designed to translate along guide means (A, B); said movable pulley () and said guide means (A, B) being contained in a cooling device () for cooling said cable ().'}21002030. Cooling system () claim 1 , according to claim 1 , characterized in that said at least one fixed channel () lies substantially along a first horizontal axis (X) claim 1 , whereas said at least one multi-pass apparatus () extends along a second vertical axis (Y) claim 1 , which is substantially perpendicular to said first horizontal axis (X).310056. Cooling system () claim 1 , according to claim 1 , characterized in that said cooling device () is a water cooling device.410056363736383637393938. Cooling system () claim 3 , according to claim 3 , ...

POLYACRYLONITRILE/CELLULOSE NANO-STRUCTURE FIBERS

In a method of making a carbon fiber, polyacrylonitrile is dissolved into a first solvent, thereby generating a first solution. A plurality of cellulose nano-structures is dispersed in a second solvent, thereby generating a first suspension. The first suspension is mixed with the first solution, thereby generating a first mixture. The first mixture is spun so as to draw fibers from the first mixture. The fibers are stabilized and then the fibers are carbonized. A fiber includes an elongated carbonized polyacrylonitrile matrix. A plurality of carbonized cellulose nano-structures is in the carbonized polyacrylonitrile matrix.

BIOMASS CARRIER AND A METHOD OF MANUFACTURING THEREOF

A compressible biomass carrier for use in fluid treatment systems is disclosed. The biomass carrier includes an extruded circumferential mesh-like structure and elongated elements positioned in a space confined by the circumferential mesh-like structure and at least some of the elongated elements are joined to an inner portion of the mesh-like structure. 1. A biomass carrier for use in a fluid treatment system , the biomass carrier comprising:an extruded circumferential mesh-like structure; andelongated elements positioned in a space confined by the circumferential mesh-like structure, at least some of the elongated elements are joined to an inner portion of the mesh-like structure,wherein the biomass carrier is compressible.2. The biomass carrier of claim 1 , wherein the elongated elements are joined to the inner portion of the mesh-like structure during an extrusion process that forms the extruded circumferential mesh-like structure.3. The biomass carrier of claim 1 , wherein the biomass carrier is compressible in a direction defined by the elongated elements.4. The biomass carrier of claim 1 , wherein the circumferential mesh-like structure has a thickness of less than 1000 micron.5. The biomass carrier of comprising a polymeric material having a density of 0.8-1.2 gram/cm.6. The biomass carrier of claim 1 , wherein the mesh-like structure comprises a rhombus mesh.7. The biomass carrier of claim 1 , wherein the extruded mesh-like structure comprises a plurality of threads arranged approximately parallel to the extruder's central axis and connected by at least two end-rings.8. The biomass carrier of claim 1 , wherein the elongated elements has a width of 2.5-20 mm.9. The biomass carrier of claim 1 , wherein the biomass carrier comprises a polymeric material.10. The biomass carrier of claim 9 , wherein the polymeric material comprises a high density polyethylene (HDPE) claim 9 , a polyethylene terephthalate (PET) claim 9 , a low density polyethylene (LDPE) claim 9 ...

INORGANIC FIBER WITH IMPROVED SHRINKAGE AND STRENGTH

An inorganic fiber containing silica and magnesia as the major fiber components and which further includes intended addition of lithium oxide to improve the thermal stability of the fiber. The inorganic fiber exhibits good thermal performance at 1260° C. and greater, low linear shrinkage, retains mechanical integrity after exposure to the use temperature, and exhibits low biopersistence in physiological fluids. Also provided are thermal insulation product forms prepared from a plurality of the inorganic fibers, methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.

STRIP-FORM WC CLEANING PRODUCT

A strip-form toilet cleaning product comprising a width (B), a height (H) and a thickness (S), wherein the ratio between width (B), height (H) and thickness (S) is between 1:1:0.01 and 1:0.1:0.2, a first extruded phase and at least one second extruded phase, wherein at least the contour of a contact surface () along the center axis () takes the form of a sine wave which has an amplitude of A, wherein the ratio of amplitude to width (B) A:B amounts to between 1:10 and 1:25 and the periodic length of the sine wave corresponds to 0.1-1 times the width (B) of the toilet cleaning product. 1. A strip-form toilet cleaning product for application in the interior of a toilet bowl comprisinga width (B), a height (II) and a thickness (S), wherein the ratio between width (B), height (H) and thickness (S) is between 1:1:0.01 and 1:0.1:0.2,a first extruded phase andat least one second extruded phase, wherein the first phase differs from at least the second phase, wherein however all the phases comprise at least one adhesion promoter at least on the side of the toilet cleaning product to be applied onto the toilet bowl andthe first phase and at least the second phase have a contact surface with one another wherein{'sub': 1,O', '1,O, 'at least the contour of a contact surface along the center axis takes the form of a sine wave which has an amplitude of A, wherein the ratio of amplitude to width (B) A:B amounts to between 1:10 and 1:25 and the periodic length of the sine wave corresponds to 0.1-1 times the width (B) of the toilet cleaning product.'}2. The strip-form toilet cleaning product according to claim 1 , characterized in that the first phase and the at least second phase have the same width (B).3. The strip-fond toilet cleaning product according to claim 1 , characterized in that the first phase and at least the second phase have substantially the same height.4. The strip-form toilet cleaning product according to claim 1 , characterized in that the first phase and at least ...

METHODS AND APPARATUS FOR THE PRODUCTION OF MULTI-COMPONENT FIBERS

The present invention is directed to apparatus and methods for making multi-component microfibers and nanofibers and non-woven fiber mats thereof. In some embodiments, the fibers have diameters ranging from 10 nm or more to 3000 nm or less. In some embodiments, the fibers are made of more than one component and have one or a mix of the following morphologies: core-sheath, side by side, stratified and/or interpenetrating structures. In some embodiments the multi-component fibers are made from two spinnable fluids and in other embodiments the multi-component fibers are made from a single spinnable solution having two different material dissolved within. Unlike certain prior art processes, the present invention does not involve application of an electrical charge to the spinnable fluid to produce the fibers and, as a result, the solvent selection is not limited to those solvents conducive to being electrically charged. 1. An apparatus for forming a non-woven mat of fibers using a stream of pressurized gas comprising:a reservoir containing a spinnable fluid;a nozzle in fluid communication with said reservoir;a fluid pump for moving said spinnable fluid from said reservoir to said nozzle;a solid surface having an opening therethrough wherein said nozzle is oriented to deliver said spinnable fluid through said nozzle and onto said solid surface and said solid surface is oriented so that said spinnable fluid flows along said solid surface when acted upon by the force of gravity; anda means for producing a stream of pressurized gas at a predetermined gas pressure and flow rate across some or all of the surface of said spinnable fluid on said solid surface to produce a fiber.2. The apparatus of further comprising:a first nozzle in fluid communication with a first fluid reservoir, said first fluid reservoir containing a first spinnable fluid; anda second nozzle in fluid communication with a second fluid reservoir, said second fluid reservoir containing a second spinnable ...

METHOD OF PRODUCING A EXTRUDED COMPOSITION

The present invention relates to a method of producing a direct compression tablet composition comprising the step of processing ibuprofen, a hydrophilic polymer, and an inorganic excipient by an extrusion process to produce an extruded composition in which the ibuprofen forms a solid dispersion/solution within the hydrophilic polymer. The invention is particularly useful in preparing oral dissolvable tablets. Also provided are composition comprising an inorganic excipient and ibuprofen within a hydrophilic polymer. 1. A method of producing an extruded composition comprising ibuprofen , said method comprising the steps of:(a) providing ibuprofen;(b) providing a hydrophilic polymer;(c) providing an inorganic excipient;(d) processing (a) to (c) by an extrusion process to produce an extruded composition wherein the ibuprofen forms a solid dispersion/solution within the hydrophilic polymer;(e) blending the extruded composition with one or more pharmaceutically acceptable excipients to produce a composition blend; and(f) directly compressing the composition blend into a direct compression tablet.2. The method according to wherein the extruded composition comprises less than or equal to 60 wt % ibuprofen.3. The method according to wherein the extruded composition is in the form of a strand.4. The method according to claim 1 , further comprising cutting the extrudate into pellets.5. The method according to further comprising micronization of the pellets.6. The method according to wherein the inorganic excipient has a specific surface area of more than 200 m/g.7. The method according to wherein the inorganic excipient has a Carr Index of less than 18.8. The method according to wherein the inorganic excipient is a metal aluminosilicate.9. The method according to wherein the inorganic excipient is magnesium alumino-metasilicate (AlO.MgO.1.7SiO.xHO)10. A direct compression tablet composition obtainable by a method as defined in .11. A direct compression tablet composition ...

Biomedical patches with aligned fibers

A structure of aligned (e.g., radially and/or polygonally aligned) fibers, and systems and methods for producing and using the same. One or more structures provided may be created using an apparatus that includes one or more first electrodes that define an area and/or partially circumscribe an area. For example, a single first electrode may enclose the area, or a plurality of first electrode(s) may be positioned on at least a portion of the perimeter of the area. A second electrode is positioned within the area. Electrodes with rounded (e.g., convex) surfaces may be arranged in an array, and a fibrous structure created using such electrodes may include an array of wells at positions corresponding to the positions of the electrodes.

Processes for Producing an Antimicrobial Masterbatch and Products Thereof

A masterbatch may be blended with virgin polymer to add desired color or other properties to the virgin polymer prior to further processing. Methods and processes for producing an antimicrobial and/or antiviral polymeric masterbatch that may be used to add antimicrobial, antiviral and/or antifungal properties to a virgin polymer without significantly degrading the properties of the virgin polymer. The masterbatch may be extruded into pellets or formed into other particles for subsequent blending with the virgin polymer to add antimicrobial and antiviral properties to the polymeric materials. 1. A method of producing an antimicrobial masterbatch , comprising:compounding antimicrobial particles with a base polymer wherein the ratio of antimicrobial particles to base polymer is between 1 to 7 and 1 to 1 to produce an antimicrobial polymer, wherein the antimicrobial polymer comprises antimicrobial particles in a concentration from 22 wt. % to 50 wt. %;adding a water scavenger during the compounding of the antimicrobial metal particles with the base polymer; andafter compounding, heating the antimicrobial polymer to react the polymer in the antimicrobial polymer with hydroxyl groups attached to the antimicrobial particles to a reaction temperature between the glass transition temperature and the melting temperature of the polymer in the antimicrobial polymer to produce an antimicrobial masterbatch.2. The method of claim 1 , wherein the heating results in an increase in the intrinsic viscosity of the polymer in the antimicrobial polymer.3. The method of claim 1 , wherein the reaction temperature is from 100° C. below the melting temperature to the melting temperature of the polymer in the antimicrobial polymer claim 1 ,4. The method of claim 1 , wherein the reaction temperature is from 200° C. below the melting temperature to a temperature 10° C. claim 1 , below the melting temperature of the polymer in the antimicrobial polymer.5. The method of claim 1 , wherein the ...

SYSTEM AND METHODS FOR INJECTING COLOR DURING MANUFACTURE OF BULKED CONTINUOUS CARPET FILAMENT

A method of introducing color to a polymer stream during the manufacturing of bulked continuous carpet filament comprises: adding a colorant to a polymer stream downstream of a primary extruder; changing a color probe within a color injection port while maintaining the flow of the polymer stream at a polymer stream pressure; using one or more static mixing assemblies for the polymer stream to substantially uniformly mix the polymer stream and its colorant; and spinning the polymer stream with its substantially uniformly mixed colorant into BCF using a spinning machine. 1. A method of introducing a liquid colorant into a polymer stream during manufacturing of a bulked continuous carpet filament , the method comprising:providing the polymer stream at a polymer stream pressure; andproviding a color injection port configured to engage a color probe comprising the liquid colorant,wherein the color injection port is further configured to position the color probe within the polymer stream for injection of the liquid colorant and to retract the color probe from the polymer stream for removal and replacement of the color probe while maintaining the polymer stream at the polymer stream pressure.2. The method of claim 1 , wherein providing the color injection port comprises providing the color injection port downstream of a primary extruder and upstream of a static mixing assembly such that the liquid colorant is introduced to the polymer stream upstream of the static mixing assembly.3. The method of claim 2 , wherein providing the color injection port comprises providing the color injection port within a secondary extruder that is positioned downstream of the primary extruder and upstream of the static mixing assembly.4. The method of claim 1 , wherein the color injection port is configured to position the color probe such that the liquid colorant is introduced to the polymer stream at a centered position of the polymer stream that is substantially equidistant from all walls ...

THREE DIMENSIONAL NETTED STRUCTURE

A three-dimensional netted structure having an upper surface, a lower surface, two side surfaces a left end surface, and a right end surface, including at least a plurality of filaments helically and randomly entangled and thermally bonded together, wherein the filaments are formed out of a thermoplastic resin by extrusion molding followed by cooling with a liquid; and the netted structure is four-surface molded, the upper surface, the lower surface and the two side surfaces being molded. An apparatus and a method for manufacturing the three-dimensional netted structure. 2. The apparatus of claim 1 , wherein each of said pair of endless conveyors comprises exactly two endless chains.3. The apparatus of claim 1 , wherein said mouthpiece has a region not provided with holes.5. A method of manufacturing a three-dimensional netted structure by using the apparatus of claim 1 , the method comprising:a) extruding filaments of a thermoplastic resin downward from said die via said mouthpiece of said die, whereby said filaments drop in between said pair of endless conveyors under a force of gravity at a dropping speed and form an assembly of filaments, said pair of endless conveyors being submerged or partly-submerged in a liquid in a tank, wherein a distance between said pair of endless conveyors is smaller than a width of said assembly of filaments;b) drawing down said assembly of filaments at a speed lower than the dropping speed by said pair of endless conveyors, and contacting and compressing at least longitudinal surfaces of said assembly of filaments by said pair of endless conveyors, whereby said longitudinal surfaces are formed to be flat, and a density of regions of the assembly of filaments which extend a predetermined distance from said longitudinal surfaces into an inner portion of the assembly of filaments is higher than a density of said inner portion; andc) cooling said assembly of filaments in the liquid in the tank.6. A method of manufacturing a three- ...

Industrial Fabric Comprising an Extruded Mesh and Method of Making Thereof

A structure for use in industrial fabrics such as paper machine clothing and engineered fabrics. The structure is a bicomponent extruded elastomeric netting or mesh having a high degree of both compressibility under an applied normal load and excellent recovery (resiliency or spring back) upon removal of that load. 2. The method of claim 1 , wherein strands in the first claim 1 , second claim 1 , and third layers are extruded polymeric elongate members which cross and intersect duringextrusion to form a net-like structure.3. The method of claim 1 , wherein the number of strands in the third layer is less than the number of strands in the first layer or vice versa.4. The method of claim 1 , wherein the strands of the second layer are orthogonal to those of the first and third layer or are at an angle of less than 90 degreesof the first and third layer.5. The method of claim 1 , further comprising:extruding a fourth layer of parallel strands in the same direction as the second layer, and comprising elastomeric strands; andextruding a fifth layer of parallel strands in the same direction as the first layer, wherein the strands of the fifth layer are aligned in the same vertical plane in a through thickness direction as that of the first or third layers.6. The method of claim 1 , wherein the elastomeric strands include an elastomeric material selected from the group consisting of: styrenic block copolymer claim 1 , elastomeric co polyesters claim 1 , elastomeric copolyamides claim 1 , elastomeric polyolefins claim 1 , thermoplastic polyurethanes claim 1 , and copolymers thereof.7. The method of claim 5 , wherein the strands in the first claim 5 , third claim 5 , and fifth layers are selected from the group consisting of: polypropylene claim 5 , polyethylene claim 5 , polybutene claim 5 , polyesters claim 5 , polyamides claim 5 , hard polyurethanes claim 5 , and copolymers thereof.8. The method of claim 1 , wherein the strands have a cross-sectionselected from the group ...

METHOD FOR THE PRODUCTION OF LIGNIN-CONTAINING PRECURSOR FIBRES AND ALSO CARBON FIBRES

The invention relates to a method for the production of a precursor for the production of carbon- and activated carbon fibres according to the wet- or air-gap spinning method, in which a solution of lignin and a fibre-forming polymer in a suitable solvent is extruded through the holes of a spinning nozzle into a coagulation bath, the formed thread is stretched and subsequently treated, dried at an elevated temperature and then wound up. The lignin-containing thread is an economical starting material for the production of carbon- and activated carbon fibres.

STRUCTURAL COMPOSITION AND METHOD

A structural polymeric composite includes a stiffening layer. The composite is made in a continuous extrusion process in which the stiffening layer is pulled through a cross-head die as a polymer is extruded over it. The layer includes a film or textile carrier, a filler of carbon fibers, fiberglass, organic fibers or minerals forming a mat. A binder may be dispersed over the mat and a second carrier applied. The mat is subjected to heat and pressure to soften the carriers and binder so they penetrate into the interstices of the filler and binds mechanically with them and the carriers and binder bind chemically with each other to form the stiffening layer. A polymer is then extruded over the stiffening layer, which may be used flat, provided with holes or punches for composite action with the polymer, formed into a profile, or segmented to provide spaced-apart stiffening layers. 1. A method for making a structural composite , said method comprising the steps of:rolling out a carrier;dispersing filler onto said carrier to form a mat;heating said carrier to liquefy said carrier;pressing said mat and said carrier together as said carrier cools to form at least one stiffening layer; andextruding a polymer over said at least one stiffening layer to form a structural composite.2. The method as recited in claim 1 , further comprising the step of extruding said polymer over said at least one stiffening layer through a cross-head die.3. The method as recited in claim 1 , wherein said filler is selected from the group consisting of chopped carbon fibers claim 1 , chopped fiberglass fibers claim 1 , anhydrite whiskers claim 1 , and mixtures thereof.4. The method as recited in claim 1 , further comprising the step of stretching said mat.5. The method as recited in claim 1 , wherein said heating step and said pressing step further comprises the step of rolling said carrier with said mat thereon between at least one pair of heated jacket rollers.6. The method as recited in claim ...

ABRASION RESISTANT POLYESTER FIBER AND WOVEN/KNITTED PRODUCT

Provided is an abrasion-resistant polyester fiber, which has, in particular, a strength within a specific range, anelongation within a specific range and a Young's modulus falling within a specific rangein a specific elongation range on a stress-strain curve, to improve the abrasion resistance of a woven/knitted product for clothing using, in particular, a fine size polyester fiber. The polyester fiber is an abrasion-resistant polyester fiber comprising ethylene terephthalate as a main repeating unit, characterized by satisfying the following requirements: (1) the fineness being from 8 dtex to 200 dtex inclusive; (2) the single yarn fineness being from 1.0 dtex to 4.0 dtex inclusive; (3) the breaking strength being 3.5 cN/dtex or greater; (4) the breaking elongation being from 20% to 50% inclusive; and (5) the minimum differential Young's modulus being 20 cN/dtex or less in an elongation range of from 2% to 5% inclusive on a stress-strain curve of the fiber. 118-. (canceled)17. A method for producing an abrasion resistant polyester fiber comprising ethylene terephthalate in 95% by mole or more , as a repeating unit , characterized by satisfying the following requirements (1) to (5):(1) a fineness is 8 dtex to 200 dtex inclusive;(2) a single yarn fineness is 1.0 dtex to 4.0 dtex inclusive;(3) a breaking strength is 3.5 cN/dtex or higher;(4) a breaking elongation is 20% to 50% inclusive; and(5) a minimum differential Young's modulus of region having an elongation of 2% to 5% inclusive in a stress-strain curve of the fiber, is 20 cN/dtex or lower, the methd_comprising the following steps of:melt spinning a polyester having a limiting viscosity of 0.70 dl/g to 1.30 dl/g inclusive;performing drawing treatment under a draw ratio of 85% to 85% inclusive of the limiting draw ratio; andperforming relaxation heat treatment at a heat treatment temperature of 120° C. to 220° C. inclusive, and a relaxation ratio of 5% to 15% inclusive.18. The method according to claim 17 , ...

Nylon 66 hollow fiber, method and equipment for manufacturing the same

A method for manufacturing a nylon 66 hollow fiber includes steps as follows. A plurality of nylon 66 particles are provided. A melting step is provided, wherein the nylon 66 particles are melted so as to form a spun liquid. A fiber spitting step is provided, wherein the spun liquid goes through a hollow spinneret plate so as to form hollow nascent fibers. An evacuating step is provided, wherein the hollow nascent fibers are preliminarily solidified so as to form hollow half-solidified fibers. A cooling step is provided, wherein the hollow half-solidified fibers are cooled and solidified so as to form solidified fibers. A collecting and oiling step is provided. A drawing step is provided. A winding step is provided so as to obtain the nylon 66 hollow fiber.

FLEXIBLE LED LIGHT STRING AND METHOD OF MAKING

A method for fabricating a flexible LED light string includes steps: 1: core strip extrusion molding; 2. LED light bead hole punching and cutting mark labelling; 3. inserting the flexible LED PCB into the core strip; 4. extrusion molding for light string sheath, i.e. diffusing strip. With the method, the core strip can has a variety of cross sectional shapes according to design needs. In the same way, the sheath can has a variety of cross sectional shapes according to design needs, and has a variety of combinations of materials and colors through multiple-color extrusion molding, for example, the sheath mixed with colored decorative strips, and non-transparent partially. 1. A method for manufacturing flexible light emitting diode (LED) light string , comprising the following steps:Step 1. core strip extrusion molding: feeding core wires into a forming die of a extrusion molding machine in which molten plastic is coated on an outer surface of the core wires continuously through the forming die to form a core strip, immersing and cooling the core strip fabricated in the forming die in coolant, and fully drying the core strip;Step 2. LED light bead hole punching and cutting mark labelling: feeding the core strip into a punching die of a punching machine in which LED light bead holes are formed by punching on one side of the core stripe for receiving LED light beads, the size of the LED light bead holes and a spacing of the LED light bead holes corresponding to the size and spacing of the LED light beads mounted on the flexible printed circuit board; labelling a cutting mark on a joint of each two adjacent branch circuits in accordance with a predetermined number of LED light beads for the respective branch circuit; andStep 3. inserting the flexible LED printed circuit board (PCB) into the core strip: wherein the LED light beads are mounted into the LED light bead holes, and then connecting electrically the power leads of the branch circuits on the flexible LED PCB to ...

CARBON FIBER BUNDLE FORMING DEVICE AND METHOD

A carbon fiber bundle forming method, wherein the at least one carbon fiber bundle can be evenly heated since it is heated with microwave in the first and second microwave steps. Besides, the at least one carbon fiber bundle is treated in the laser step, laser can reach into the interior of the at least one carbon fiber bundle to enable the carbonization and graphitization to take place more evenly, then the carbon fiber bundle is treated in the subsequent roughening treatment step, the resin forming step and the semi-cure forming step, so that the interior of the at least one carbon fiber bundle can be heated evenly, which allows the at least one carbon fiber bundle to be carbonized evenly. 1. A carbon fiber bundle forming device , comprising:a feeding unit including a carbon-fiber-bundle-raw-material wheel to provide at least one carbon fiber bundle;a dehumidification unit connected to the feeding unit, and including a dehumidification room, wherein the at least one carbon fiber bundle is dried after passing through the dehumidification room;an induction heating unit connected to the dehumidification unit, and including an induction heating room, wherein the at least one carbon fiber bundle is stabilized by being induction heated in the induction heating room from room temperature to 500° C.;a first microwave heating unit connected to the induction heating unit, and including a first microwave room, wherein the at least one carbon fiber bundle is carbonized by being microwave heated from 500° C. to 1000° C. in the first microwave room;a second microwave heating unit connected to the first microwave heating unit, and including a second microwave room, wherein the at least one carbon fiber bundle is graphitized by being heated from 1000° C. to 1500° C. in the second microwave room;a laser unit heating temperature from 1500° C. to 3000° C., being connected to the second microwave heating unit, and including a laser carbonization room, wherein the at least one carbon ...

A FIBER PRODUCTION SYSTEM AND PRODUCTION METHOD

The present invention relates to a fiber production system () and production method which enables heat treatment applied during fiber production to be performed as applying laser on the fiber. The objective of the present invention is to provide a fiber production system () and production method which enables to perform momentary heat treatment on the filament (F) via laser beam (L) and which eliminates defected points in the filament structure by heating fast and drawing in fiber production. 1. A fiber production system , for preventing the skin-core structure formed in the fiber and/or eliminating this structure , comprising:at least one molten forming member which enables the polymeric crude material to be used in fiber production to be heated and melted,at least one extrusion member which enables the molten crude material to be passed through at least one spinneret at its end part,at least one cooling unit which provides filament structure to the crude material going out of the extrusion member and passing through the spinnerets by cooling it,a plurality of rollers which enables the crude material to be heated above glass transition temperature or crystallization temperature and the fiber material in filament form to reach a certain crystallinity by being drawn at a certain tension,at least one mobile laser device which enables to form a balanced heat distribution and thus the defect in the filament structure to be eliminated by drawing via heat and the rollers by applying laser beam on the filament during drawing the filaments with the rollers,at least one heated chamber which is located between any two rollers, preferably before the fourth roller, applying heat on the material in order to increase crystallinity in the fiber material drawn with the rollers, and enabling the continuity of the filament structure provided to the material,at least one control member which enables to guide the mobile laser device to the related area according to the data it receives ...

METHODS, SYSTEMS, AND APPARATUSES FOR MANUFACTURING ROTATIONAL SPUN APPLIANCES

The present disclosure relates to methods and systems for manufacturing rotational spun materials. The rotational spun materials are medical appliances or other prostheses made of, constructed from, covered or coated with rotational spun materials, such as polytetrafluoroethylene (PTFE). 1. A method of making a rotational spun appliance , the method comprising:rotating a spinneret around a first axis of rotation to produce spinning fibers;rotating a plurality of mandrels, each mandrel rotating about its own axis of rotation, wherein each mandrel's axis of rotation is not the same as the first axis of rotation; andcontacting the spinning fibers with the rotating mandrels, such that fibers are deposited on the mandrels.2. The method of claim 1 , wherein the plurality of mandrels are collectively and simultaneously rotating around the first axis of rotation.3. The method of claim 1 , wherein each mandrels' own axis of rotation is radially tangential to the first axis of rotation.4. The method of claim 1 , wherein each mandrel's own axis of rotation is perpendicular to the first axis of rotation.5. The method of claim 4 , wherein the rotation of each mandrel around its own axis of rotation results in the surface of the mandrel turning in the same direction as the spinning fibers are spinning.6. The method of claim 4 , wherein the rotation of each mandrel around its own axis of rotation results in the surface of the mandrel turning in an opposite direction as the spinning fibers are spinning.7. The method of claim 1 , wherein the fibers are microfibers or nanofibers.8. The method of claim 1 , wherein the fibers are polymer fibers.9. The method of claim 1 , further comprising placing fiber-wrapped mandrels in a sintering oven and sintering the fiber-wrapped mandrels.10. The method of claim 1 , wherein the rotational spun appliance is a stent claim 1 , stent graft claim 1 , or graft.11. A method of manufacturing a component of a medical appliance claim 1 , the method ...

Carbon-containing modacrylic & aramid bicomponent filament yarns

A yarn comprising a plurality of bicomponent filaments having a first region comprising a first polymer composition and a second region comprising a second polymer composition, each of the first and second regions being distinct in the bicomponent filaments; each bicomponent filament comprising 5 to 60 weight percent of the first polymer composition and 95 to 40 weight percent of the second polymer composition; wherein the first polymer composition comprises aramid polymer containing 0.5 to 20 weight percent discrete homogeneously dispersed carbon particles and the second polymer composition comprises modacrylic polymer being free of discrete carbon particles; the yarn having a total content of 0.1 to 5 weight percent discrete carbon particles.

MONOFILAMENT BASED ON A POLYAMIDE COMPOSITION

A monofilament made from a polyamide composition including at least 70 wt. % of a polyamide resulting from the condensation of: 1. A monofilament made from a polyamide composition comprising at least 70 wt. % of a polyamide resulting from the condensation of:an aliphatic diamine comprising 4 to 18 carbon atoms, together witha (cyclo)aliphatic diacid comprising 10 to 18 carbon atoms, and withan aliphatic monocarboxylic acid comprising 2 to 12 carbon atoms as a chain stopping agent.2. The monofilament of claim 1 , wherein the aliphatic monocarboxylic acid is acetic acid and/or lauric acid.3. The monofilament of claim 1 , wherein the aliphatic diamine comprises 5 to 12 carbon atoms.4. The monofilament of claim 1 , wherein the aliphatic diamine has 6 carbon atoms.5. The monofilament of claim 1 , wherein the polyamide is:polyamide 6.10 having an acetamide-terminal group; orpolyamide 6.10 having a lauramide-terminal group; orpolyamide 6.12 having an acetamide-terminal group; orpolyamide 6.12 having a lauramide-terminal group.6. The monofilament of claim 1 , wherein the polyamide composition comprises at least 75 wt. % of said polyamide.7. The monofilament of claim 1 , wherein the polyamide composition comprises one or more optical brighteners and/or one or more antioxidant agents claim 1 , in addition to said polyamide.8. A process of making a monofilament claim 1 , comprising extruding a polyamide composition through a die claim 1 , wherein the polyamide composition comprises at least 70 wt. % of a polyamide resulting from the condensation of:an aliphatic diamine comprising 4 to 18 carbon atoms, together witha (cyclo)aliphatic diacid comprising 10 to 18 carbon atoms, and withan aliphatic monocarboxylic acid comprising 2 to 12 carbon atoms as a chain stopping agent.9. The process of claim 8 , wherein the aliphatic monocarboxylic acid is acetic acid and/or lauric acid.10. A process of chain stopping claim 8 , the process comprising adding an aliphatic monocarboxylic acid ...

CROSSLINKED FIBERS AND METHOD OF MAKING SAME BY EXTRUSION

The present disclosure relates to a method of forming fibers. First and second precursors, each possessing a core and at least one functional group known to have click reactivity, are mixed. The mixed precursors are then extruded under heat to cross-link during fiber production. 110-. (canceled)11. A fiber prepared by:obtaining a mixture by mixing first and second precursors each possessing a core and at least one functional group known to have click reactivity; andextruding said mixture in order to crosslink the first and second precursors to produce a fiber.12. The fiber of claim 11 , wherein the first and second precursors are biocompatible polymers.13. The fiber of claim 11 , wherein claim 11 , for each of said first and second precursors claim 11 , the core comprises synthetic materials selected from poly(lactic acid) claim 11 , poly (glycolic acid) claim 11 , poly(lactide) claim 11 , poly(glycolide) claim 11 , poly(trimethylene carbonate) claim 11 , poly (dioxanone) claim 11 , poly (hydroxybutyrate) claim 11 , poly (phosphazine) claim 11 , polyesters claim 11 , polyethylene terephthalate claim 11 , ultra-high molecular weight polyethylene claim 11 , polyethylene glycols claim 11 , polyethylene oxides claim 11 , polyacrylamides claim 11 , polyhydroxyethylmethylacrylate claim 11 , polyvinylpyrrolidone claim 11 , polyvinyl alcohols claim 11 , polyacrylic acid claim 11 , polyacetate claim 11 , polycaprolactone claim 11 , polypropylene claim 11 , aliphatic polyesters claim 11 , glycerols claim 11 , poly(amino acids) claim 11 , copoly (ether-esters) claim 11 , polyalkylene oxalates claim 11 , poly (saccharides) claim 11 , polyamides claim 11 , poly (iminocarbonates) claim 11 , polyalkylene oxalates claim 11 , polyoxaesters claim 11 , polyorthoesters claim 11 , polyphosphazenes claim 11 , biopolymers claim 11 , polymer drugs and copolymers claim 11 , block copolymers claim 11 , homopolymers claim 11 , blends and combinations thereof.14. The fiber of claim 11 , ...

PROCESS FOR SPINNING DISSOLVED CELLULOSE

The present invention relates to a process for forming cellulose fibers or film from dissolved cellulose. The process comprises the steps of: dissolving cellulose in an aqueous coagulation sodium salt solution to provide a cellulose spin dope; extruding the cellulose spin dope into a coagulation bath liquid comprising an aqueous coagulation sodium salt solution to provide cellulose fibers or film; withdrawing a portion of the coagulation bath comprising coagulation sodium salt and sodium hydroxide (NaOH); cooling the withdrawn portion of the coagulation bath to precipitate solid coagulation sodium salt to recover sodium hydroxide (NaOH) substantially free from the coagulation salt; and using at least a portion of the recovered sodium hydroxide (NaOH) in dissolving the cellulose to provide the cellulose spin dope. 1. A process for forming cellulose fibers or film from dissolved cellulose , said process comprising the steps of:{'b': 114', '103, 'dissolving () cellulose in an aqueous sodium hydroxide (NaOH) solution to provide a cellulose spin dope ();'}{'b': 108', '103', '104, 'extruding () the cellulose spin dope () into a coagulation bath liquid comprising an aqueous coagulation sodium salt solution, the coagulation bath liquid being present in a coagulation vessel (), to provide cellulose fibers or film;'}{'b': 109', '104', '104, 'withdrawing () the cellulose fibers or film from the coagulation vessel (), and withdrawing, directly and/or indirectly, a portion of the coagulation bath liquid from the coagulation vessel (); the withdrawn portion of the coagulation bath liquid comprising an aqueous solution of the coagulation sodium salt and sodium hydroxide (NaOH);'}{'b': '107', 'cooling () at least a portion of the withdrawn portion of the coagulation bath liquid to a temperature of −10° C. to −35° C. to precipitate solid coagulation sodium salt, being heavier than a remaining liquid phase, and to freeze water to floating ice, thereby decreasing the concentration of ...

PROCESS FOR PRODUCING FOAMS BASED ON THERMOPLASTIC POLYURETHANES

A process for producing foamed thermoplastic polyurethane particles comprises the steps of a) melting a thermoplastic polyurethane in a first extruder (E), b) injecting a gaseous blowing agent in a second extruder (E), c) impregnating the gaseous blowing agent homogeneously into the thermoplastic polyurethane melt in a third extruder (E), d) extruding the impregnated thermoplastic polyurethane melt through a die plate and granulating the melt in an underwater granulation device under temperature and pressure conditions to form foamed thermoplastic polyurethane particles. 1. A process for producing foamed thermoplastic polyurethane particles , the process comprising:{'b': '1', 'a) melting a thermoplastic polyurethane in a first extruder E,'}{'b': '2', 'b) injecting a gaseous blowing agent in a second extruder E,'}{'b': '3', 'c) impregnating the gaseous blowing agent homogeneously into the thermoplastic pol-yurethane melt in a third extruder E, and'}d) extruding the impregnated thermoplastic polyurethane melt through a die plate and granulating the melt in an underwater granulation device under temperature and pressure conditions to form foamed thermoplastic polyurethane particles.2. The process according to claim 1 , wherein a bulk density of the foamed thermoplastic polyurethane particles formed in step d) ranges from 30 to 250 kg/m3.3. The process according to claim 1 , wherein the gaseous blowing agent comprises CO2 claim 1 , N2 claim 1 , or a combination of CO2 and N2.4132. The process according to claim 1 , wherein a single screw extruder is used as the first extruder E and the third extruder E claim 1 , and a twin extruder is used as the second Extruder E.5. The process according to claim 1 , wherein the water in the underwater granulation device has a pressure in the range from 1 to 20 bar and a temperature in the range from 10 to 50° C. This invention relates to a process for production of expanded pellets from a polymer melt comprising a blowing agent. ...

NON-WOVEN FIBER FABRIC, AND PRODUCTION METHOD AND PRODUCTION DEVICE THEREFOR

The present invention provides a method for producing a non-woven fiber fabric by spinning a molten polymer. Thus, a non-woven fiber fabric which is substantially free from a solvent, different from the case of spinning a polymer solution, but yet has an extremely small fiber size (diameter of 0.5 μm or less) is provided. The non-woven fiber fabric comprises an olefin-based thermoplastic resin fiber, said fiber having an average fiber size of 0.01-0.5 μm, and said non-woven fiber fabric having an average pore size of 0.01-10.0 μm and being free from a solvent component. 1. A method for manufacturing a nonwoven fiber fabric , comprising:discharging a molten thermoplastic resin from a spinneret together with a heated gas by melt blowing, to provide a fibrous resin having a diameter of 1.0 μm or less;applying a high voltage to the fibrous resin; andcollecting the fibrous resin to which the high voltage has been applied, in the form of a web.2. The method for manufacturing a nonwoven fiber fabric according to claim 1 , wherein fibers of the nonwoven fiber fabric have an average fiber diameter in the range of 0.01 to 0.5 μm.3. The method for manufacturing a nonwoven fiber fabric according to claim 1 , further comprising irradiating the fibrous resin discharged from the spinneret with heat rays before or simultaneously with the step of applying a high voltage.4. The method for manufacturing a nonwoven fiber fabric according to claim 3 , wherein the heat rays are near-infrared rays.5. The method for manufacturing a nonwoven fiber fabric according to claim 1 , wherein the thermoplastic resin is an olefin thermoplastic resin.6. A method for manufacturing a nonwoven fiber fabric claim 1 , comprising:discharging a molten thermoplastic resin from a spinneret, together with a heated gas discharged from a gas nozzle by melt blowing, to provide a fibrous resin;applying a high voltage to the fibrous resin; andcollecting the fibrous resin to which the high voltage has been applied, ...

FILTRATION MEDIUM INCLUDING POLYMERIC NETTING OF RIBBONS AND STRANDS

A filtration medium including a polymeric netting of polymeric ribbons and polymeric strands. Each of the polymeric ribbons and strands has a length and width, with the length being the longest dimension and the width being the shortest dimension. The polymeric ribbons have a height-to-width aspect ratio of at least three to one or five to one a major surface that is intermittently bonded to a polymeric strand, and a height typically greater than the height of the one polymeric strand. A filter including the filtration medium and a method useful for making the polymeric netting are also disclosed 1. A filtration medium comprising a polymeric netting , wherein the polymeric netting comprises polymeric ribbons and polymeric strands , each of the polymeric ribbons and strands having a length and width , wherein the length is the longest dimension and the width is the shortest dimension , wherein the polymeric ribbons have a height-to-width aspect ratio of at least three to one , a major surface that is intermittently bonded to a polymeric strand at spaced-apart bonding sites , and a height that is greater than a height of the polymeric strand , and wherein at least one of the following limitations is met:the polymeric netting is electrostatically charged;the polymeric netting further comprises sorbent particles attached to at least some of the polymeric ribbons or polymeric strands; orthe polymeric netting is pleated.2. The filtration medium of claim 1 , wherein at least one of the following limitations is met:the height-to-width aspect ratio of the polymeric ribbons is at least five to one;the height of the polymeric ribbon is at least two times greater than the height of the polymeric strand; orthe major surface of each of the polymeric ribbons is intermittently bonded to only one polymeric strand at spaced-apart bonding sites.3. A filtration medium comprising a polymeric netting claim 1 , wherein the polymeric netting comprises polymeric ribbons and polymeric ...

High crystalline poly(lactic acid) filaments for material-extrusion based additive manufacturing

Provided is a new and better solution to the problems associated with the premature softening of PLA filaments in the additive manufacturing of three dimensional articles. It is based upon the finding that poly (lactic acid) filaments with high crystallinity offer much better resistance to heat-induced softening. The crystalline poly (lactic acid) filament can accordingly be used in the additive manufacturing of three dimensional articles without encountering the problems associated with premature softening, such as poor quality and printer jamming. The crystalline poly (lactic acid) filaments can also be used in additive manufacturing of three dimensional articles without compromising the quality of the ultimate product, reducing printing speed, increasing cost, or leading to increased printer complexity. It more specifically discloses a filament for use in three-dimensional printing which is comprised of crystalized poly (lactic acid), wherein said filament has a diameter which is within the range of 1.65 mm to 1.85 mm.

Polymeric netting of ribbons and strands and methods of making the same

A polymeric netting including polymeric ribbons and polymeric strands. Each of the polymeric ribbons and strands has a length and width, with the length being the longest dimension and the width being the shortest dimension. The polymeric ribbons have a height-to-width aspect ratio of at least five to one, a major surface that is intermittently bonded to only one polymeric strand, and a height greater than the height of the one polymeric strand. An extrusion die and method useful for making the polymeric netting are also disclosed.

THERMOPLASTIC COMPOSITION WITH LOW HYDROCARBON UPTAKE

Thermoplastic compositions are described that exhibit resistance to hydrocarbon absorption. Methods for forming the thermoplastic compositions are also described. Formation methods include combining a polyarylene sulfide with a first impact modifier and a second impact modifier such that the impact modifiers are dispersed throughout the polyarylene sulfide. A crosslinking agent can be combined with the other components of the composition following dispersal of the additives throughout the composition to dynamically crosslink at least one of the first and second impact modifiers. 1. A thermoplastic composition including a polyarylene sulfide , a first impact modifier , and a second impact modifier , wherein the first impact modifier is a crosslinked impact modifier.2. The thermoplastic composition of claim 1 , wherein both the first impact modifier and the second impact modifier are crosslinked.3. The thermoplastic composition of claim 1 , wherein the first impact modifier is an olefinic copolymer or terpolymer.4. The thermoplastic composition of claim 3 , wherein the crosslinked first impact modifier comprises the reaction product of an epoxy functionality of the first impact modifier and a crosslinking agent or comprises the reaction product of a maleic anhydride functionality of the first impact modifier and a crosslinking agent.5. The thermoplastic composition of claim 1 , wherein the polyarylene sulfide is crosslinked.6. The thermoplastic composition of claim 1 , wherein the polyarylene sulfide is a polypropylene sulfide.7. The thermoplastic composition of claim 6 , wherein the second impact modifier is a homopolymer or a copolymer of ethylene.8. The thermoplastic composition of claim 7 , wherein the second impact modifier is a high molecular weight homopolymer or copolymer of ethylene or an ultrahigh molecular weight homopolymer or copolymer of ethylene.9. The thermoplastic composition of claim 1 , wherein the second impact modifier is a homopolymer or a ...

MELT BLOWING DIE, APPARATUS AND METHOD

A melt blowing die includes a stack of plates including corresponding melt blowing die tip, die body and air functionalities. One or more rows of polymer filament extrusion orifices extend through in a stack direction across multiple plates of a stack. A gas distribution system within the stack has gas outlets are positioned to provide distributed gas flow to contact and attenuate extruded polymer filaments. One of more polymer distribution channels extend longitudinally through multiple plates in the stack direction to supply polymer to each of the rows of extrusion orifices. A polymer distribution channel is open to receive polymer feed only at a longitudinal end. A melt blowing apparatus has a collection substrate movable in a machine direction that is transverse to a stack direction in a melt blowing die. A method for producing fiber-containing material includes melt blowing using a melt blowing die with a stack of plates. 1. A melt blowing die , comprising: polymer filament extrusion orifices including at least one row of extrusion orifices extending in the stack direction across multiple said plates of the stack;', 'a gas distribution system within the stack including gas outlets positioned to provide distributed gas flow to contact and attenuate polymer filaments extruded from the said extrusion orifices of each said row of extrusion orifices; and', 'at least one polymer distribution channel extending longitudinally through multiple said plates in the stack direction, the polymer distribution channel being in fluid communication within the plate stack for supply of polymer to the extrusion orifices of at least one said row of extrusion orifices; and, 'at least one stack of plates stacked in a stack direction, the stack of plates comprisingthe polymer distribution channel is open to receive polymer feed only at a longitudinal end of the polymer distribution channel.2. A melt blowing die according to claim 1 , wherein:each said extrusion orifice of a said row ...

SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the flakes through a PET crystallizer; (E) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 18 millibars; (F) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (G) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET. 1. A method of manufacturing bulked continuous carpet filament , said method comprising:(A) providing a PET crystallizer;(B) passing a plurality of flakes of recycled PET through said PET crystallizer;(C) after passing said plurality of flakes through said PET crystallizer, at least partially melting said plurality of flakes into a polymer melt; (i) a first satellite screw extruder, said first satellite screw extruder comprising a first satellite screw that is mounted to rotate about a central axis of said first satellite screw;', '(ii) a second satellite screw extruder, said second satellite screw extruder comprising a second satellite screw that is mounted to rotate about a central axis of said second satellite screw; and', '(iii) a pressure regulation system that is adapted to maintain a pressure within said first and second satellite screw extruders below about 18 millibars;, '(D) providing a multi-screw extruder that comprises(E) using said pressure regulation system to reduce a pressure within said first and second satellite screw extruders to below about 18 millibars;(F) after said step of passing said plurality of flakes through said PET crystallizer, while maintaining said pressure within said first and second satellite screw extruders below about ...

METHOD AND DEVICE FOR MELT-SPINNING, DRAWING, CRIMPING AND WINDING MULTIPLE THREADS

Techniques are directed to melt spinning, drawing, crimping and winding multiple threads. The threads are spun from a plurality of spinnerets of a spinning device and are drawn as a thread group by a drawing device and are subsequently fed for crimping next to one another to a plurality of texturing units. In order to obtain identical treatment of all threads within the thread group, the threads are guided individually with a plurality of wraps next to one another on a godet unit and, after running off from the godet unit, are guided in a straight thread run parallel next to one another into the texturing units. To this end, adjacent texturing units of the crimping device form a treatment spacing between themselves which is such that, in the case of being guided individually with a plurality of wraps on the godet unit, the threads can be guided in parallel in a straight thread run. 1. Method for melt-spinning , drawing , crimping , and winding a plurality of threads , in which method the threads from a plurality of spinning nozzles are spun beside one another , on at least one godet unit are collectively guided as a thread skein , are drawn , and for crimping are subsequently guided beside one another to a plurality of texturing apparatuses , wherein the threads in a singularized manner and with a plurality of wrappings are guided beside one another on the godet unit , and in which method the threads after running off from the godet unit are guided into the texturing apparatuses in a straight thread run in parallel beside one another.2. Method as claimed in claim 1 , wherein for crimping the threads are each compressed to form a thread plug claim 1 , and in that the thread plugs are guided in parallel beside one another claim 1 , and are dissolved to form crimped threads.3. Method as claimed in claim 2 , wherein the threads after crimping are drawn off in parallel beside one another by a godet unit claim 2 , wherein the threads in a singularized manner and with a ...

SEPARATOR OF LITHIUM ION BATTERY AND MANUFACTURING METHOD THEREOF, AND LITHIUM ION BATTERY

A separator of lithium ion battery and manufacturing method thereof, and a lithium ion battery are provided. The separator of lithium ion battery is a thin film formed by thermal crosslinking of PBz (polybenzoxazine) electrospun fibers. This separator of lithium ion battery has properties of high ion conductivity, small Nnumber, good thermal and dimensional stability, and high compatibility with liquid electrolyte. 1. A separator of a lithium ion battery , comprising a thin film consisting of thermally crosslinked polybenzoxazine (PBz) electrospun fibers.2. The separator of the lithium ion battery as claimed in claim 1 , wherein a number average molecular weight of polybenzoxazine in the thermally crosslinked PBz electrospun fibers is at least 5000 g/mol.3. A lithium ion battery claim 1 , at least comprising a cathode claim 1 , an anode claim 1 , an electrolyte and a separator located between the cathode and the anode claim 1 , wherein the separator is the separator of the lithium ion battery as claimed in .4. A lithium ion battery claim 2 , at least comprising a cathode claim 2 , an anode claim 2 , an electrolyte and a separator located between the cathode and the anode claim 2 , wherein the separator is the separator of the lithium ion battery as claimed in .5. A manufacturing method of a separator of a lithium ion battery claim 2 , comprising:forming polybenzoxazine (PBz) electrospun fibers by an electrospinning process;thermally crosslinking the PBz electrospun fibers; andpressing the thermally crosslinked PBz electrospun fibers for forming the separator of the lithium ion battery.6. The manufacturing method of the separator of the lithium ion battery as claimed in claim 5 , wherein raw materials of the PBz electrospun fibers comprises bisphenol A claim 5 , formaldehyde and 4 claim 5 ,4′-diaminodiphenylether.7. The manufacturing method of the separator of the lithium ion battery as claimed in claim 5 , wherein a number average molecular weight of polybenzoxazine ...

Devices and methods for the production of microfibers and nanofibers in a controlled environment

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. To improve the formation of fibers, various devices and systems for controlling the micro-environment around the fiber producing device are described.

PROCESS AND SYSTEM FOR FABRICATING A COLORED POWDER COATING COMPOSITION FROM SOLID FILAMENTS

A process and system for rapidly fabricating small batches of powder coating compositions having desired colors from one or more solid input filaments. An additive manufacturing filament fabricator feeds one or more single-color solid polymer input filaments into a heated mixer in accordance with an input formulation to be liquefied and mixed to produce a homogenous extrudate mixture. The extrudate mixture is solidified on an extrudate receiving platform and is then comminuted by an extrudate mill into a finished powder coating composition having a desired color. 1. A system for fabricating a colored powder coating composition from one or more solid input filaments comprising:a filament feeder comprised of a plurality of filament drivers;a filament mixer having a plurality of filament inlets each joined through an inlet channel in a mixing chamber housing to an interior mixing chamber;said mixing chamber housing having a heating element and an extrudate channel between said interior mixing chamber and a nozzle opening;a mixing mechanism within said mixing chamber;an extrudate receiving platform;an extrudate powder mill; andan electronic fabricator controller having a fabricator processor, a fabricator memory, and a fabricator bus.2. The system for fabricating a colored powder coating composition from one or more solid input filaments of further comprising a filament spool support.3. The system for fabricating a colored powder coating composition from one or more solid input filaments of further comprising a filament tube joining an output of each filament driver with an input of a filament inlet.4. The system for fabricating a colored powder coating composition from one or more solid input filaments of further comprising a mixing chamber temperature sensor.5. The system for fabricating a colored powder coating composition from one or more solid input filaments of further comprising a passive cooling mechanism for said filament inlets.6. The system for fabricating a ...

AUTOMATIC PROCESS CONTROL OF ADDITIVE MANUFACTURING DEVICE

Automatic process control of additive manufacturing. The system includes an additive manufacturing device for making an object and a local network computer controlling the device. At least one camera is provided with a view of a manufacturing volume of the device to generate network accessible images of the object. The computer is programmed to stop the manufacturing process when the object is defective based on the images of the object. 1. System for automated process control of an additive manufacturing device comprising:an additive manufacturing device for making an object;a local networked computer controlling the device;at least one camera with a view of a manufacturing volume of the device to generate network accessible images of the object;wherein the computer is programmed to stop the manufacturing process when the object is defective based on the images of the object.2. The system of wherein the at least one camera has a fixed view of the manufacturing volume.3. The system of wherein the at least one camera has a robotically controlled view of the manufacturing volume.4. The system of wherein the images are video streams.5. The system of wherein the images are static.6. The system of wherein the additive manufacturing device is a 3-D printer.7. The system of wherein the computer further includes a series of server-side applications executing remote algorithms.8. The system of further including a web-browser based control interface.9. The system of wherein the algorithm includes machine learning algorithms.10. The system of wherein the manufacturing volume includes a calibration pattern thereon.11. The system of wherein the machine learning algorithms include markov claim 9 , bayesian inference or artificial neural network algorithms.12. The system of further including 3-D print preview to update object rendering in real time.13. The system of further including an array of lights for creating object shadows for reconstructing a profile view from the point of ...

MATERIAL PROCESSING UNIT CONTROLLED BY ROTATION

An interchangeable unit adapted to couple to a computer numerical control (“CNC”) machine is disclosed comprising a holder that couples to a spindle of the CNC machine, a controller, wherein said controller is configured to receive the rotational speed of the spindle as an input, and a material processing unit, wherein said material processing unit executes a first function in response to a first rotational speed range of the spindle and executes a second function in response to a second rotational speed range of the spindle. 1. An interchangeable unit adapted to couple to a computer numerical control (“CNC”) machine comprising:a holder that couples to a spindle of the CNC machine;a controller, wherein said controller is configured to receive the rotational speed of the spindle as an input; andan extruder, wherein said extruder executes a first function in response to a first rotational speed range of the spindle and executes a second function in response to a second rotational speed range of the spindle.2. The interchangeable unit according to claim 1 , further comprising a filament source adapted to provide filament to the extruder.3. The interchangeable unit according to claim 1 , wherein the extruder includes one or more units selected from the group consisting of: additive manufacture units claim 1 , material curing units claim 1 , material heating units claim 1 , and material cooling units.4. The interchangeable unit according to claim 1 , further including a generator claim 1 , wherein rotation of the spindle causes the generator to produce power for the extruder.5. The interchangeable unit according to claim 1 , wherein the first function and second function are selected from the group consisting of: system reset claim 1 , lower calibration claim 1 , turn off heat claim 1 , cool down claim 1 , standby claim 1 , reprogram settings claim 1 , stay heated claim 1 , change filament claim 1 , change mix ratio of components claim 1 , middle calibration claim 1 , ...

ASSEMBLY FIXTURE WITH ANISOTROPIC THERMAL PROPERTIES

In one embodiment, a method may comprise heating a composite material into a viscous form, wherein the composite material comprises a thermoplastic and a plurality of reinforcement fibers, wherein the plurality of reinforcement fibers is randomly arranged within the thermoplastic. The method may further comprise extruding a plurality of strands of the composite material, wherein extruding the plurality of strands causes the plurality of reinforcement fibers within each strand to align. The method may further comprise arranging the plurality of strands of the composite material to form an assembly fixture, wherein the assembly fixture comprises an anisotropic thermal expansion property, and wherein the anisotropic thermal expansion property is based on an orientation of the plurality of reinforcement fibers within the assembly fixture. 1. A method , comprising:heating a composite material into a viscous form, wherein the composite material comprises a thermoplastic and a plurality of reinforcement fibers, wherein the plurality of reinforcement fibers is randomly arranged within the thermoplastic;extruding a plurality of strands of the composite material, wherein extruding the plurality of strands causes the plurality of reinforcement fibers within each strand to align; andarranging the plurality of strands of the composite material to form an assembly fixture, wherein the assembly fixture comprises an anisotropic thermal expansion property, and wherein the anisotropic thermal expansion property is based on an orientation of the plurality of reinforcement fibers within the assembly fixture.2. The method of claim 1 , wherein the assembly fixture is configured to facilitate assembly of a composite structure by fastening the composite structure during a heated bonding process.3. The method of claim 2 , wherein the composite structure comprises a wing.4. The method of claim 3 , wherein the wing comprises a rotor blade.5. The method of claim 3 , wherein the anisotropic ...

Low Density Fibers and Methods for Forming Same

Fibers that are formed from a thermoplastic composition that contains a polymer and high surface area nanostructures are provided. The fibers have a voided structure and low density while maintaining good strength characteristics. To achieve such a structure, a blowing agent in the thermoplastic composition is activated during extrusion to form bubbles in the fibers. The high surface area nanostructures in the formed fibers can be formed of or carry the blowing agent and can enhance the strength of the fibers and compensate for the non-load bearing voids of the fibers. 1. A fiber that is formed from a thermoplastic composition , the thermoplastic composition comprising at least one polymer and high surface area nanostructures , the fiber including from about 0.5 wt. % to about 4 wt. % of the high surface area nanostructures based upon the total weight of the fiber , the fiber including a plurality of voids dispersed within the fiber , the fiber having a density that is about 95% or less of the density of the polymer , the average percent volume of the fiber that is occupied by the voids being from about 10% to about 50% of the fiber.2. The fiber of claim 1 , wherein the fiber has a density that is from about 50% to about 90% of the density of the polymer.3. The fiber of claim 1 , wherein the average percent volume of the fiber that is occupied by the voids is from about 15% to about 45% of the fiber.4. The fiber of claim 1 , wherein the voids contain a combination of micro-voids and nano-voids.5. The fiber of claim 1 , wherein the polymer is a polyolefin homopolymer or copolymer.6. The fiber of wherein the polyolefin is a propylene homopolymer claim 5 , propylene/α-olefin copolymer claim 5 , ethylene/α-olefin copolymer claim 5 , or a combination thereof.7. The fiber of claim 1 , wherein the polymer is a polyester homopolymer or copolymer.8. The fiber of claim 7 , wherein the polyester is a polylactic acid or polyethylene terephthalate homopolymer or copolymer.9. The ...

SYSTEMS AND METHODS FOR FACILITATING THE GENERATION OF CORE-SHEATH TAYLOR CONES IN ELECTROSPINNING

Systems and methods for electrospinning of core-sheath fibers are provided. The systems and methods achieve optimization of a shear stress that exists at a fluid boundary between core and sheath polymer solutions, by varying certain parameters of an electrospinning apparatus and/or the solutions used therewith. 1. A method for electrospinning a core-sheath fiber , comprising the steps of:providing an electrospinning apparatus comprising a first vessel having a first elongate aperture, a second vessel having a second elongate aperture, wherein the first and second elongate apertures are aligned along a single central axis, and a collector positioned at a distance from the first and second elongate apertures;flowing a first flowable material comprising a core polymer into the first vessel;flowing a second flowable material comprising a sheath polymer into the second vessel;adjusting a height of the first vessel and first elongate aperture relative to the height of the second elongate aperture; andapplying an electric potential between the collector and the first and second apertures, the electric potential having a magnitude and an orientation effective to form at least one electrospinning jet, wherein at least one parameter selected from the group consisting of a width of the first or second aperture, a length of the first or second aperture, and a flow rate of the first or second flowable material is chosen to optimize a shear stress generated at a fluid interface between the first and second flowable materials during the application of the potential, such that a desired ratio of core and sheath polymers is incorporated into the at least one electrospinning jet.2. The method of claim 1 , wherein the first flowable material exits the first aperture at a first velocity and the second flowable material exits the second aperture at a second velocity.3. The method of claim 2 , wherein the second velocity is about 1.3 times greater than the first velocity.4. The method of ...

MOLDED RESIN STRAND, METHOD FOR MODELING THREE-DIMENSIONAL OBJECT, AND METHOD FOR MANUFACTURING MOLDED RESIN STRAND

A molded resin strand includes a first layer containing thermoplastic resin, and a second layer covering the first layer and containing thermoplastic resin exhibiting physical properties different from those of the first layer. For example, the second layer is melt-extruded with the second layer covering the first layer. A three-dimensional object is modeled by lamination deposition by fusion between adjacent second layers. In a molded resin strand manufacturing method, a melt-kneaded resin material is continuously extruded from a ferrule of an extruder. The extruded molded resin strand is vacuum-sucked while passing through a sizing device. Subsequently, the molded resin strand is wound up after cooling solidification. The sizing device is provided with a space having a circular cross section, and a surface of the sizing device facing the space is provided with a plurality of vacuum suction grooves. 1. A molded resin strand used for a 3D printer employing fused deposition modeling , comprising:a first layer containing thermoplastic resin; anda second layer covering the first layer, containing thermoplastic resin, and exhibiting a physical property different from that of the first layer.2. The molded resin strand according to claim 1 , whereinthe first layer contains an inorganic filler, and the second layer contains no inorganic filler.3. The molded resin strand according to claim 2 , whereinthe inorganic filler is a carbon fiber.4. The molded resin strand according to claim 1 , whereinwhen the second layer is hard and the first layer is soft, the second layer covers the first layer to prevent bending of the first layer.5. The molded resin strand according to claim 1 , whereinwhen the second layer is soft and the first layer is hard, the second layer covers the first layer to prevent damage of the first layer due to bending.6. The molded resin strand according to claim 1 , whereinthe second layer contains water vapor barrier resin, and covers the first layer to ...

Forming age-suppressing catalysts

In an example of a method for forming a catalyst, a polymeric solution including a platinum group metal (PGM) is exposed to electrospinning to form carbon-based nanofibers containing PGM nanoparticles therein. An outer surface of the carbon-based nanofibers containing the PGM nanoparticles is coated with a metal oxide or a metal oxide precursor. The carbon-based nanofibers are selectively removed to form metal oxide nanotubes having PGM nanoparticles retained within a hollow portion thereof.

FILAMENTS AND FIBERS AND METHOD FOR MAKING FILAMENTS AND FIBERS

A fiber is disclosed having a central axis or spline and a major outer surface, the fiber made of a base material and poly(vinylidene fluoride), the proportion of base material to poly(vinylidene fluoride) being greater towards the central axis or spline of the fiber than at the major outer surface of the fiber. The base material may be selected from the group consisting of polyethylene, polypropylene and nylon. The fiber has a surface roughness. 1. A fiber having a central spline and a major outer surface , comprised of a base material and a polymer wherein the proportion of base material to the polymer is greater towards the central axis of the fiber than at the major outer surface of the fiber.2. The fiber of wherein the base material is comprised of an olefin.3. The fiber of wherein the base material is selected from the group consisting of polyethylene claim 2 , polypropylene claim 2 , nylon and polyester.4. The fiber of wherein the fiber has a surface roughness.5. A fiber claim 1 , comprising:an elongated body comprised of at least a base material and a poly vinylidene fluoride, elongated body having a first end, a second end opposite the first end, a center spline extending between the first end and the second end, and a major outer surface spaced radially outward of the center spline, a ratio of the base material to the poly vinylidene fluoride being greater proximate the center spline than proximate the major outer surface.6. The fiber of wherein the base material is comprised of an olefin.7. The fiber of wherein the ratio of the base material to the poly vinylidene fluoride gradually decreases from the center spline toward the major outer surface.8. The fiber of wherein the fiber further comprises maleic anhydride.9. The fiber of wherein the base material is selected from the group consisting of polyethylene claim 5 , polypropylene claim 5 , nylon and polyester.10. The fiber of wherein the ratio of the base material to the poly vinylidene fluoride ...

FIBER REINFORCED THERMOPLASTIC COMPOSITES AND METHODS OF MAKING

Methods of making a fiber-reinforced thermoplastic polyurethane composite are described. The methods may include applying a sizing composition to a plurality of fibers to make sized fibers, where the sizing composition may include at least one curative for a thermoplastic polyurethane prepolymer. The sized fibers may be contacted with a thermoplastic polyurethane prepolymer composition to form a resin-fiber amalgam, where the thermoplastic polyurethane prepolymer composition includes 50 wt. % or less of a total amount of the curative that is also present on the sized fibers. The resin-fiber amalgam may then be cured to form the fiber-reinforced thermoplastic polyurethane composite. 1. A method of making a fiber-reinforced polyurethane composite , the method comprising:applying a sizing composition to a plurality of fibers to make sized fibers, wherein the sizing composition comprises at least one curative for a thermoplastic polyurethane prepolymer;contacting the sized fibers with the thermoplastic polyurethane prepolymer composition to form a resin-fiber amalgam, wherein the thermoplastic polyurethane prepolymer composition includes 50 wt. % or less of a total amount of the at least one curative that is also present on the sized fibers; andcuring the resin-fiber amalgam to form the fiber-reinforced polyurethane composite.2. The method of claim 1 , wherein the thermoplastic polyurethane prepolymer composition comprises 0 wt. % of the curative that is present on the sized fibers.3. The method of claim 1 , wherein the thermoplastic polyurethane prepolymer composition is the reaction product of a polyol and a polyisocyanate compound.4. The method of claim 3 , wherein the polyol comprises a polyester polyol or a polyether polyol.5. The method of claim 4 , wherein the polyester polyol comprises a reaction product of adipic acid and diethylene glycol.6. The method of claim 4 , wherein the polyether polyol comprises a polyalkylene glycol.7. The method of claim 1 , wherein ...

ABSORBABLE IMPLANTS FOR PLASTIC SURGERY

Absorbable implants for breast surgery that conform to the breast parenchyma and surrounding chest wall have been developed. These implants support newly lifted breast parenchyma, and/or a breast implant. The implants have mechanical properties sufficient to support a reconstructed breast, and allow the in-growth of tissue into the implant as it degrades. The implants have a strength retention profile allowing the support of the breast to be transitioned from the implant to regenerated host tissue, without significant loss of support. Three-dimensional implants for use in minimally invasive mastopexy/breast reconstruction procedures are also described, that confer shape to a patient's breast. These implants are self-reinforced, can be temporarily deformed, implanted in a suitably dissected tissue plane, and resume their preformed three-dimensional shape. The implants are preferably made from poly-4-hydroxybutyrate (P4HB) and copolymers thereof. The implants have suture pullout strengths that can resist the mechanical loads exerted on the reconstructed breast. 1. An absorbable implant for plastic surgery procedures comprising a porous biodegradable polymeric scaffold formed into an anatomical shape , two-dimensional shape , three-dimensional shape , and/or asymmetric shapes , minimizing any buckling or bunching of the implant upon placement.2. The implant of claim 1 , wherein the suture pullout strength of the absorbable implant is greater than 10 N claim 1 , and more preferably greater than 20 N.3. The implant of claim 1 , wherein the scaffold can support a pressure of at least 0.1 kPa.4. The implant of claim 1 , wherein the absorbable implant can withstand a load of at least 5 N claim 1 , more preferably of at least 15 N claim 1 , and even more preferably of at least 60 N.5. The implant of claim 1 , wherein the scaffold has an average pore diameter of at least 10 μm.6. The implant of claim 1 , wherein the implants are compliant and the bending stiffness of the ...

Plant and method for making continuous elastic yarns made of silicone material and continuous elastic yarn made of silicone material thus obtained

A plant and method for making continuous yarns made of silicone material comprises at least an extrusion station, into which the material is introduced in an amorphous condition, and extrusion means which cause the material to exit from the extrusion station along an extrusion axis. The plant also comprises a vulcanization station, located downstream of the extrusion station, at a determinate distance therefrom, in which the continuous yarn is vulcanized in a direction of treatment. The plant also comprises a drawing unit, disposed downstream of the vulcanization station. 111.-. (canceled)12. A method for making continuous elastic yarns of silicone material , comprising at least an extrusion step , wherein by means of an extrusion station comprising an extrusion body said material is made to exit along an extrusion axis , with a conditioned shaping , and at least a vulcanization station step carried out in a vulcanization oven disposed downstream of said extrusion body , wherein:in said extrusion step, said extrusion means confer on the extrusion axis a substantially vertical direction,in a segment between an exit from the extrusion body and an entrance into the vulcanization oven, that is variable between 400 and 1500 mm according to the final thickness of the elastic yarn to be obtained, the elastic yarn is subjected to a drawing action performed by a drawing unit disposed downstream of said vulcanization oven, in which a drawing ratio conferred on the elastic yarn before entering the vulcanization oven is comprised in a value between 2 and 6 (100-500%), reducing the section of the elastic yarn proportionally, before the elastic yarn enters said vulcanization oven, and in which the elastic yarn has a final thickness of less than 0.7 mm and has a desired orientation of the molecular chains, and wherein the vulcanization oven is selectively moved with respect to said extrusion station so as to vary said distance at least according to a desired value of final ...

SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the flakes through a PET crystallizer; (E) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 18 millibars; (F) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (G) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET. 1. A method of manufacturing bulked continuous carpet filament , the method comprising:(A) washing a plurality of flakes of recycled PET;(B) providing a PET crystallizer;(C) after the step of washing the first plurality of flakes, passing the plurality of flakes of recycled PET through the PET crystallizer to at least partially dry the plurality of flakes of recycled PET;(D) at least partially melting the plurality of flakes into a polymer melt; a plurality of satellite screws, each of the plurality of satellite screws being at least partially housed within a respective extruder barrel and mounted to rotate about its respective central axis; and a satellite screw extruder support system that is adapted to orbitally rotate each of the plurality of satellite screws about a main axis as each of the plurality of satellite screws rotate about its respective central axis, the main axis being substantially parallel to each respective central axis;', 'a first single-screw extruder section comprising a first single extruder screw for melting the plurality of flakes of recycled PET to form a polymer melt and feeding the polymer melt into the MRS section;', 'a second single-screw extruder section comprising a second single extruder screw for transporting the polymer ...

METHOD FOR MANUFACTURING ASYMMETRIC POLYVINLYLIDENEFLUORIDE HOLLOW FIBER MEMBRANE AND HOLLOW FIBER MEMBRANE MANUFACTURED THEREFROM

The present disclosure relates to a method for manufacturing an asymmetric polyvinlylidene fluoride (PVDF) hollow fiber membrane, whereby a PVDF hollow fiber membrane is manufactured by the thermally induced phase separation method, which enables effective mixing of the PVDF and a diluent without additional use of an inorganic fine powder such as silica and is advantageous in that it is relatively easy to control preparation parameters because temperature is the main factor of phase separation of the two-component system of the polymer and the diluent and thus to obtain a separation membrane of satisfactory quality, by providing temperature difference between the inner and outer surfaces of a hollow fiber, thereby achieving an asymmetric structure in which the inner surface side and the outer surface side of the hollow fiber have different pore sizes and distributions. 1. A method for manufacturing an asymmetric PVDF hollow fiber membrane , comprising:(a) preparing a melted mixture comprising a PVDF resin and a diluent;(b) forming an unsolidified PVDF hollow fiber by spinning the melted mixture through a dual nozzle;(c) inducing thermally induced phase separation by providing temperature difference between the inner and outer surfaces of the spun unsolidified PVDF hollow fiber by supplying nitrogen gas at higher temperature than the outer surface to the inner surface and quenching the outer surface using a cooling medium at lower temperature than the inner surface; and(d) forming pores inside the hollow fiber by extracting the diluent from the thermally phase separation induced PVDF hollow fiber precursor.2. The method for manufacturing an asymmetric PVDF hollow fiber membrane according to claim 1 , wherein the preparing the melted mixture comprises preparing a pellet by uniformly mixing a PVDF resin and a diluent in a batch reactor and melting the prepared pellet in an extruder.3. The method for manufacturing an asymmetric PVDF hollow fiber membrane according to ...

DRY-JET WET SPUN CARBON FIBERS AND PROCESSES FOR MAKING THEM USING A NUCLEOPHILIC FILLER/PAN PRECURSON

Carbon fibers made by a process using an organogel precursor that includes a nucleophilic filler and polyacrylonitrile; such a process which includes dry-jet wet spinning; and an article made from such carbon fibers. 133.-. (canceled)34. A precursor for making carbon fibers comprising an organogel made with a polyacrylonitrile material and a nucleophilic polymer filler.351. The precursor of claim , wherein the organogel is a thermoreversible organogel.36. The precursor of claim 35 , wherein the organogel comprises a polyacrylonitrile material having a weight average molecular weight which is one of: 80 claim 35 ,000-150 claim 35 ,000 about 100 claim 35 ,000.37. The precursor of claim 35 , wherein the organogel has a sol-gel transition temperature which is one of: 70-130° C.; 80-90° C.; and about 80° C.38. The precursor of claim 34 , wherein the polyacrylonitrile is a homopolymer.39. The precursor of claim 34 , wherein the polyacrylonitrile is a copolymer or terpolymer of acrylonitrile with at least one polymerizable monomer having an alkenyl group and one or two carboxylic acid or ester groups per molecule.40. The precursor of claim 34 , wherein the polyacrylonitrile is one of PAN/MA (PAN/methylacrylate) and PAN/MA/IA (PAN/methyl acrylate/itaconic acid).41. The precursor of claim 34 , wherein the nucleophilic polymer filler is an organic compound with a carboxylic acid unit claim 34 , an alcohol unit claim 34 , a phenol unit claim 34 , an amine unit claim 34 , a thiol unit claim 34 , polyaniline (PANI) claim 34 , an aliphatic polyether diamine claim 34 , polyaniline in emaraldine base form claim 34 , and/or other nucleophilic subunit and/or a combination of two or more of these.42. The precursor of claim 34 , comprising a total of 10 to 30 wt % solids loading in a polar solvent. 143. The precursor of claim 34 , wherein the nucleophilic polymer filler has 0.5 to 1.0 wt % PANI in PAN or a copolymer thereof.44. A process for making carbon fibers claim 34 , the process ...

MEMBRANE FILTRATION USING LOW ENERGY FEED SPACER

In at least one embodiment, a membrane filtration element is provided. The element may include at least one feed spacer including a first set of parallel strands extending in a first direction and including a plurality of first strands having a first thickness and a plurality of second strands having a second thickness that is smaller than the first thickness. A second set of parallel strands may extend in a second direction that is transverse to the first direction. The second set of parallel strands may include a plurality of third strands having a third thickness and a plurality of fourth strands having a fourth thickness that is smaller than the third thickness. In one embodiment, the first and second sets of strands include alternating thick and thin strands, which reduce pressure drop in membrane filtration systems. 1. A spiral wound filtration element comprising:a central collection tube having at least one hole defined therein;at least one membrane envelope attached to the central collection tube and having two membrane sheets separated by a spacer, the at least one membrane envelope configured to be wrapped around the central collection tube to form a spiral; and a first set of parallel strands extending in a first direction and including a plurality of first strands having a first thickness and a plurality of second strands having a second thickness that is smaller than the first thickness; and', 'a second set of parallel strands extending in a second direction that is transverse to the first direction;', 'wherein the first set of strands and the second set of strands are always located on the same side of each other., 'at least one feed spacer configured to be disposed adjacent to at least one membrane sheet when wrapped around the central collection tube and to create a channel to receive liquid to be filtered, the feed spacer comprising a netting including2. The spiral wound filtration element of claim 1 , wherein the second set of parallel strands ...

PROCESS FOR PRODUCING FLUORORESIN

A process for producing a fluororesin in which a low-boiling component is reduced, by subjecting a melt-formable fluororesin to melt-kneading treatment by a twin screw extruder wherein the twin screw extruder has at least one melting zone, a set temperature of a most upstream first melting zone Z among melting zones is the melting point of the fluororesin +25 to 100° C., a vacuum degree at a vent port of the vacuum vent is at most −0.07 MPa [gage], and a melt mass-flow rate α2 (g/10 min) of the fluororesin after the melt-kneading treatment at a specific temperature under a specific load, to a melt mass-flow rate α1 (g/10 min) of the fluororesin before the melt-kneading treatment at the same temperature under the same specific load satisfy α1<α2≤α1+14. 1. A process for producing a fluororesin , the process comprising: {'br': None, 'α1<α2≤α1+14 \u2003\u2003(I)'}, 'subjecting a melt-formable fluororesin to melt-kneading treatment by the following twin screw extruder under the following conditions to produce a fluororesin satisfying the following formula (I)wherein α2 is a melt mass-flow rate (g/10 min) of the fluororesin after the treatment, and α1 is a melt mass-flow rate (g/10 min) of the fluororesin before the treatment (provided that the two melt mass-flow rates are measured under a load of 49 N at the same temperature higher by 20 to 40° C. than the melting point of the fluororesin),twin screw extruder: a twin screw extruder comprising two screws each having a shaft and a plurality of screw elements mounted on the shaft, a barrel having the two screws incorporated therein, and a vacuum vent disposed on the barrel, and comprising at least one melting zone in which, among the screw elements, two or more of mixing elements are continuously disposed, and/or two or more of kneading elements are continuously disposed,melt-kneading conditions: a temperature of the most upstream melting zone among melting zones in the twin screw extruder is higher by 25 to 100° C. than ...

FIBRES, A PROCESS FOR PRODUCING SUCH FIBRES AND A WOUND DRESSING INCORPORATING THEM

Multi component fibres for the reduction of the damaging activity of wound exudate components such as protein degrading enzymes and inflammatory mediators in wounds, the fibres comprising: from 10% to 100% by weight of the fibres of pectin and a sacrificial proteinaceous material in a weight ratio of 100:0 to 10:90 pectin to sacrificial proteinaceous material and from 0% to 90% by weight of the fibres of another polysaccharide or a water soluble polymer. 1. Multi component fibres for the reduction of the damaging activity of wound exudate components such as protein degrading enzymes and inflammatory mediators in wounds , the fibres comprising:from 10% to 100% by weight of the fibres of pectin and a sacrificial proteinaceous material in a weight ratio of 80:20 to 60:40 pectin to sacrificial proteinaceous material andfrom 0% to 90% by weight of the fibres of another polysaccharide or a water soluble polymer.2. Multi component fibres as claimed in wherein the fibres comprise 75% to 100% by weight of the fibres of pectin and a sacrificial proteinaceous material in a weight ratio of 80:20 to 60:40 pectin to sacrificial proteinaceous material.3. Multi component fibres as claimed in wherein the fibres comprise 90% to 100% by weight of the fibres of pectin and a sacrificial proteinaceous material in a weight ratio of 80:20 to 60:40 pectin to sacrificial proteinaceous material4. Multi component fibre as claimed in wherein the weight ratio of pectin to sacrificial proteinaceous material in the fibres is 70:30.5. A wound dressing comprising multi component pectin fibres for use in the reduction of the damaging activity of wound exudate components such as protein degrading enzymes and inflammatory mediators in wounds.6. A wound dressing comprising multi component fibres for the reduction of the damaging activity of wound exudate components such as protein degrading enzymes and inflammatory mediators in wounds claim 1 , the fibres comprising:from 10% to 100% by weight of the ...

INHERENTLY SUPER-OMNIPHOBIC FILAMENTS, FIBERS, AND FABRICS AND SYSTEM FOR MANUFACTURE

Invention is directed to a method of extruding an omni-phobic filament comprising: extruding a co-polymer filament having a first polymer at a core having generally a circular cross-section, and a second polymer disposed at a perimeter of the core wherein the second polymer is dissolvable; creating channels disposed at the perimeter of the core by dissolving the second polymer; creating trapezoidal cross-section features having a distal angle less than 70°, a top edge greater than a side length and a bottom length less than the side length; and adding nano-sized particles to at least one of the top edge and one or more sides or any combination thereof. 1. A method of extruding an omni-phobic filament comprising:providing feedstock taken from the group consisting of a first polymer and a second polymer wherein the second polymer is dissolvable;forcing the feedstock through a spinneret, spin pack, quench, heater, drawing apparatus, and stabilizing process;dissolving the second polymer to create reentrant features disposed at the perimeter of the filament and along the lengths of the filament having a trapezoidal cross-section; and,adding nano-sized particles to at least one of the top edge and the side length.2. The method of wherein the reentrant features include a distal angle less than 70° claim 1 , a top edge greater than a side length and a bottom length less than the side length.3. The method of wherein the number of reentrant features is in the range of 6 to 64.4. The method of wherein the first polymer is taken from the group consisting of polypropylene and nylon and the second polymer is a G polymer.5. The method of wherein the nano-sized particles have a diameter of about 200 nm.6. The method of including the step of providing a fiber having a plurality of filaments and providing a fabric having an plurality of fibers.7. The method of wherein the reentrant features have a geometric angle less than the equilibrium contact angle of a liquid contacting the ...

SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT FROM COLORED RECYCLED PET

A method of manufacturing bulked continuous carpet filament that includes providing a polymer melt and separating the polymer melt from the extruder into at least eight streams. The multiple streams are exposed to a chamber pressure within a chamber that is below approximately 5 millibars. The streams are recombined into a single polymer stream and formed into bulked continuous carpet filament. 1. A method of manufacturing bulked continuous carpet filament , the method comprising:providing a polymer melt from an extruder to a chamber;separating the polymer melt from the extruder into at least eight streams within the chamber, each stream at least partially exposed to the chamber encompassing the at least eight streams such that a surface area of each of the at least eight streams is exposed to a chamber pressure within the chamber;{'b': '5', 'reducing a pressure within the chamber to reach the chamber pressure below about millibars corresponding to a desired moisture level or intrinsic viscosity associated with a single polymer stream comprising the at least eight streams of the polymer melt;'}recombining the at least eight streams into the single polymer stream; andforming the single polymer stream into bulked continuous carpet filament.2. The method of claim 1 , wherein separating the polymer melt from the extruder into at least eight streams within the chamber comprises separating the polymer melt from the extruder into at least eight streams within the chamber.3. The method of claim 2 , further comprising:providing a plurality of polymer flakes to the extruder; andadding one or more color concentrates to the plurality of polymer flakes or to the polymer stream.4. The method of claim 3 , further comprising:providing a color sensor configured to determine a color of the single polymer stream; andsubstantially automatically adjusting an amount of the one or more color concentrates added to the plurality of polymer flakes or the single polymer stream based at least ...

SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an expanded surface area extruder while maintaining a pressure within the expanded surface area extruder below about 25 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET. 1. A method of manufacturing bulked continuous carpet filament , the method comprising:(A) washing a plurality of flakes comprising recycled PET;(B) providing a PET crystallizer;(C) after the step of washing the plurality of flakes comprising recycled PET, passing at least a portion of the plurality of flakes comprising recycled PET through the PET crystallizer to at least partially dry a surface of the plurality of flakes comprising recycled PET; a plurality of satellite screws, each of the plurality of satellite screws being at least partially housed within a respective extruder barrel and mounted to rotate about its respective central axis; and', 'a satellite screw extruder support system that is adapted to orbitally rotate each of the plurality of satellite screws about a main axis as each of the plurality of satellite screws rotate about its respective central axis, the main axis being substantially parallel to each respective central axis;, '(D) providing an expanded surface area extruder, wherein the expanded surface area extruder defines an expanded surface area extruder inlet and an expanded surface area extruder outlet and comprises(E) providing a pressure regulation system configured to reduce a pressure within at least a portion of the expanded surface area extruder below about 25 ...

METHOD FOR MANUFACTURING AN ANTIMICROBIAL FILAMENT FIBRE AND METHOD FOR MANUFACTURING AN ANTIMICROBIAL FABRIC

A method for manufacturing an antimicrobial filament fibre includes the following steps of: mixing diiodomethyl p-tolyl sulfone with a plastic mother particle so that the particle contains diiodomethyl p-tolyl sulfone; and melt-spinning the particle to form the antimicrobial filament fibre. 1. A method for manufacturing an antimicrobial filament fibre , comprising:mixing diiodomethyl p-tolyl sulfone with a plastic mother particle so that the particle contains the diiodomethyl p-tolyl sulfone; andmelt-spinning the particle to form the antimicrobial filament fibre.2. The method as claimed in claim 1 , wherein the plastic mother particle is selected from the group consisting of a nylon mother particle claim 1 , a polyethylene mother particle claim 1 , a polypropylene mother particle claim 1 , and a polyester mother particle.3. The method as claimed in claim 1 , wherein the melt-spinning step comprises:melting the plastic mother particle into a molten state;extruding the plastic mother particle through a capillary hole to form a filament fibre precursor; andcooling the filament fibre precursor to form the antimicrobial filament fibre.4. A method for manufacturing an antimicrobial fabric claim 1 , comprising:mixing diiodomethyl p-tolyl sulfone with a plastic mother particle so that the particle contains the diiodomethyl p-tolyl sulfone;melt-spinning the particle to form an antimicrobial filament fibre; andapplying a process to the antimicrobial filament fibre to form the antimicrobial fabric.5. The method as claimed in claim 4 , wherein the plastic mother particle is selected from the group consisting of a nylon mother particle claim 4 , a polyethylene mother particle claim 4 , a polypropylene mother particle claim 4 , and a polyester mother particle.6. The method as claimed in claim 4 , wherein the melt-spinning step comprises:melting the plastic mother particle into a molten state;extruding the plastic mother particle through a capillary hole to form a filament fibre ...

Cementitious Composite Material Including A Plurality Of Filled Fibers

A composite material includes a cementitious composition and a plurality of fibers disposed in the cementitious composition. Each of the plurality of fibers includes a plastic component. Each of the plurality of fibers further includes a surfactant and a metal oxide, each independently heterogeneously dispersed throughout each of the plurality of fibers. A method of forming the composite material includes the step of combining the plastic component, the surfactant, and the metal oxide, to form the plurality of fibers. The method further includes the step of disposing the plurality of fibers in the cementitious composition to form the composite material. 1. A composite material comprising:a cementitious composition; and a plastic component,', 'a surfactant, and', 'a metal oxide;, 'a plurality of fibers disposed in said cementitious composition, each of said plurality of fibers comprising;'}wherein each of said surfactant and said metal oxide is independently heterogeneously dispersed throughout each of said plurality of fibers.2. The composite material of wherein said surfactant is chosen from the group of an alcohol alkoxylate claim 1 , an alcohol block/heteric alkoxylate claim 1 , a polyoxyethylene/polyoxypropylene block/heteric copolymer claim 1 , a fatty alcohol claim 1 , a fatty alkoxy alcohol claim 1 , a polyalkylene glycol claim 1 , a alkylphenol alkoxylate claim 1 , and combinations thereof.3. The composite material of wherein said metal oxide is silicon dioxide.4. The composite material of wherein said metal oxide is present in an amount of from 0.1 to 5 weight percent based on a total weight of said plurality of fibers.5. The composite material of wherein said surfactant is an alcohol alkoxylate.6. The composite material of wherein said surfactant is an alcohol block/heteric alkoxylate.7. The composite material of wherein said surfactant is a polyoxyethylene/polyoxypropylene block/heteric copolymer.8. The composite material of wherein said surfactant is a ...

Improved Spinning Process and Novel Gelatin Fibers

The present invention relates to the manufacturing gelatin fibers comprising the steps of: (a) preparing a two-phase composition as defined in the claims, (b) spinning the lower phase of said composition, (c) stretching the obtained fiber and (d) optional finishing steps; to new gelatin fibers and to the use thereof. 2. The process of claim 1 , wherein said step (b) is dry spinning.3. The process of claim 1 , wherein said step (b) is wet spinning.4. The process of claim 1 , wherein said gelatin has a Bloom value of at least 280 g.5. The process of claim 1 , whereinsaid aliphatic alcohol is selected from the group consisting of isopropanol and ethanol and/orsaid second solvent is not presentand/or said additives are not present.6. The process of claim 1 , wherein the composition of step (a) is obtained bycombining the starting materials (gelatin, water, first solvent, second solvent, if present and additives if present) and heating to 40-70° C.; followed byphase separation at 40-70° C. to obtain an opaque, gelatin-rich phase.7. The process of claim 1 , wherein said step (b) comprises spinning of a gelatin composition where the gelatin is in a non-equilibrium claim 1 , precipitate-like state.8. The process of claim 1 , wherein said step (c) is a multi step process having a plurality of substeps claim 1 , wherein in each of said substeps the fiber is stretched by 5-50% to obtain the intended final stretching factor.9. The process of claim 1 , wherein said step (d) comprisescross-linking the obtained gelatin fiber; orcross-linking the obtained gelatin fiber followed by swelling in water followed by drying in an gas atmosphere being inert to the gelatin fiber; and/orcoating the obtained gelatin fiber.10. The process of claim 1 , wherein said gelatin fibersare of 20-200 micrometers diameter; and/orare of more than 1 m length; and/orcomprise internal pores of 0.1-10 micrometers diameter.11. A porous gelatin fiber claim 1 , characterized in thatsaid fiber has a diameter of ...

CO-EXTRUDED ROLL FORMED BRIGHT EXTRUSION WITH INTEGRAL END FORMS

A weatherstrip and associated method of forming the weather-strip includes a body having a core formed of a first material and at least partially encapsulated in an extrusion material. A bright strip or metal show surface is integrated within the extrusion body to provide an aesthetically pleasing bright strip. The end of the bright strip is formed at an end of the weatherstrip to provide a one-piece structure. 1. A weatherstrip comprising:a body having a core formed of a first material and at least partially encapsulated in an elastomer;a bright strip having a metal show surface that is integrated with the body;an end region of the bright strip being configured from the bright strip material into an integral, one-piece closed end of the weatherstrip.2. The weatherstrip of wherein the integrated bright strip is at least partially encapsulated in the elastomer.3. The weatherstrip of wherein the elastomer is an extrudable material.4. The weatherstrip of wherein a cross-section through the body claim 1 , elastomer claim 1 , and bright strip has an extrudable profile.5. The weatherstrip of wherein the elastomer is removed in the end region of the bright strip.6. The weatherstrip of wherein the bright strip is formed of a first metal. The weatherstrip of wherein the first metal is stainless steel.87. The weatherstrip of claim wherein the core is made from a different claim 1 , second metal.9. The weatherstrip of wherein the second metal is aluminum.10. The weatherstrip of wherein the core is made from a different claim 6 , second metal.11. The weatherstrip of wherein the closed end is substantially perpendicular to the metal show surface.12. The weatherstrip of wherein the closed end is a continuous uninterrupted surface that extends from the metal show surface.13. The weatherstrip of wherein a rear surface opposite of the show surface of the bright strip is devoid of elastomer in the end region.14. The weatherstrip of wherein the rear surface is devoid of elastomer ...

ABSORBABLE IMPLANTS FOR PLASTIC SURGERY

Absorbable implants for breast surgery that conform to the breast parenchyma and surrounding chest wall have been developed. These implants support newly lifted breast parenchyma, and/or a breast implant. The implants have mechanical properties sufficient to support a reconstructed breast, and allow the in-growth of tissue into the implant as it degrades. The implants have a strength retention profile allowing the support of the breast to be transitioned from the implant to regenerated host tissue, without significant loss of support. Three-dimensional implants for use in minimally invasive mastopexy/breast reconstruction procedures are also described, that confer shape to a patient's breast. These implants are self-reinforced, can be temporarily deformed, implanted in a suitably dissected tissue plane, and resume their preformed three-dimensional shape. The implants are preferably made from poly-4-hydroxybutyrate (P4HB) and copolymers thereof. The implants have suture pullout strengths that can resist the mechanical loads exerted on the reconstructed breast. 120-. (canceled)21. A three-dimensional implant for breast reconstruction or plastic surgery comprising a porous biodegradable scaffold , wherein the scaffold comprises a monofilament fiber made from a synthetic or biological polyester.22. The implant of claim 21 , wherein the scaffold has pore diameters that are at least 50 μm.23. The implant of claim 21 , wherein the implant has a suture pullout strength greater than 10 N.24. The implant of claim 21 , wherein the implant can withstand a load of at least 5 N.25. The implant of claim 21 , wherein the implant is used to form an anatomical shape of the breast.26. The implant of claim 21 , wherein the implant is used in mastopexy claim 21 , mastopexy augmentation procedures claim 21 , revision procedures following removal of a breast implant claim 21 , and breast reconstruction procedures following mastectomy.27. The implant of claim 21 , wherein the implant has ...

Catalyst Composition and Method for Growing Spinable Carbon Nanotube Arrays

A method of forming an array of aligned, uniform-length carbon nanotubes on a planar surface of a substrate employing a composite catalyst layer of iron and cobalt. The carbon nanotubes have visible length and are useful for producing spun threads of carbon nanotubes having improved spinability and mechanical and electrical properties. 1. A method of forming an array of aligned , uniform-length carbon nanotubes (CNTs) on a planar surface of a substrate , comprising the steps of: 1) providing a substrate having a planar surface; 2) depositing a composite catalyst layer on the planar surface , the composite catalyst layer comprising iron element and cobalt element; 3) oxidizing the composite catalyst layer to form an oxidized composite catalyst layer; 4) reducing said oxidized composite catalyst layer to form a reduced composite catalyst layer; and 5) growing the array of aligned CNTs on the reduced composite catalyst layer.2. The method according to wherein the composite catalyst layer has a thickness of at least 0.5 nm claim 1 , and up to 5 nm.3. The method according to wherein the thickness is between 1 nm and 2 nm.4. The method according to or wherein the step of forming comprises forming the carbon nanotubes in a chemical vapor deposition reactor.5. The method according to any of the preceding claims wherein the step of depositing comprises depositing the iron element and the cobalt element onto the planar surface simultaneously claim 2 , or as a plurality of alternating layers of the iron element and the cobalt element onto the planar surface.6. The method according to any of the preceding claims wherein the composite catalyst layer comprises at least approximately 5 wt. % of iron element claim 2 , more typically at least approximately 50 wt. % of iron element claim 2 , and up to about 95 wt. % of iron element.7. The method according to any of the preceding claims wherein the deposited composite catalyst layer is a discontinuous layer having a pattern comprising ...

Advanced Thermal Processing Techniques of "Sacrificial" Polylactic Acid

A method of making a sacrificial fiber, comprising: forming a molten sacrificial composition comprising a poly(hydroxyalkanoate) and a metal catalyst; extruding the molten sacrificial composition to form a sacrificial fiber comprising the poly(hydroxyalkanoate) and the metal catalyst, where the concentration of the metal catalyst in the sacrificial fiber is at least 0.1 wt %. 1. A method of making a sacrificial fiber , comprising:forming a molten sacrificial composition comprising a poly(hydroxyalkanoate) and a metal catalyst; andextruding the molten sacrificial composition to form a sacrificial fiber comprising the poly(hydroxyalkanoate) and the metal catalyst,where the concentration of the metal catalyst in the molten sacrificial composition is at least 0.1 wt %.2. The method of claim 1 , where the poly(hydroxyalkanoate) is poly(lactic acid).3. The method of claim 1 , where the metal catalyst is SnOx.4. The method of claim 1 , where the concentration of the metal catalyst in the molten sacrificial composition is at least 1 wt %.5. The method of claim 1 , where the concentration of the metal catalyst in the molten sacrificial composition is from 2.5 to 3.5 wt %.6. The method of claim 1 , where the weight average molecular weight of the poly(hydroxyalkanoate) is at least 50 kDa to at most 500 kDa.7. The method of claim 1 , where the forming the molten sacrificial composition comprises:mixing ingredients comprising the poly(hydroxyalkanoate) and the metal catalyst, to form a sacrificial polymer, andheating the sacrificial polymer to a temperature equal to or above the melting temperature of the poly(hydroxyalkanoate).8. The method of claim 7 , where the sacrificial polymer is formed by solvent-blending or by melt-blending.9. The method of claim 7 , further comprising at least one of sieving and grinding the metal catalyst.10. The method of claim 1 , further comprising heated-drawing the sacrificial fiber.11. The method of claim 1 , where the sacrificial fiber is a ...

HIGH STRENGTH POLYMER FILAMENT FOR FDM 3D PRINTER INCLUDING GRAPHENE COATED METAL NANOPARTICLES, NANOCARBONS FOR 3D PRINTER, AND PREPARATION METHOD OF THE SAME

The present invention relates to a 3D printer polymer filament improving strength of a polymer resin and providing durability by using graphene coated metal nanoparticles and carbon nanotubes, and expressing a function of the graphene coated metal nanoparticles and the carbon nanotubes as a filler, and a manufacturing method thereof. 1. A composite material comprising graphene coated metal nanoparticles at 1 wt % to 20 wt % , nanocarbons at 10 wt % or less , and a polymer resin at 70 wt % to 99 wt %.2. The composite material of claim 1 , whereinthe polymer resin includes at least one selected from a group including polylactide [PLA], polymethacrylic acid [PMA], a poly(caprolactone-lactide) random copolymer [PCLA], poly(glycolide) [PGA], poly(dioxanone) [PDO], poly(DL-lactide-co-L-lactide) [LDLPLA], poly(DL-lactide-co-glycolide) [DLPLG], poly(glycolide-co-trimethylene carbonate) [PGA-TMC], poly(L-lactide-co-glycolide) [PLGA], poly(ε-caprolactone) [PCL], poly(glycolide-co-L-lactide) [PGLA], poly(glycolide-co-DL-lactide) [PGDLLA], poly-L-lactide [PLLA], poly-D-lactide [PDLA], poly-DL-lactide [PDLLA], poly(L-lactide-co-ε-caprolactone) [LCL], acrylonitrile butadiene styrene [ABS], nylon, polyvinyl alcohol [PVA], impact-resistant polystyrene [HIPS], and combinations thereof.3. The composite material of claim 1 , whereinthe graphene coated metal nanoparticles include at least one selected from a group including Cu, Al, Ti, Ni, W, Fe, Co, Zn, Si, Ag, Au, Pt, Pd, Cd, Ta, and combinations thereof.4. The composite material of claim 1 , whereinthe nanocarbons include at least one selected from a group including fullerene, carbon nanotube, graphene, and combination thereof.5. The composite material of claim 1 , whereinan average tensile strength of the composite material is 80 MPa or more.6. The composite material of claim 1 , whereinthe composite material is an FDM-type 3D printer polymer filament.7. A molding article comprising the composite material of .8. A molding article ...

DEVICE FOR ENSHEATHING A CONDUCTOR

A device for ensheathing at least one conductor in a sheath that consists of plastic has an extruder, a first cooling system arranged behind the extruder, a first conveying system behind the first cooling system, and another conveying system for fixing the length of the sheath relative to the conductor. The first conveying system has two units for controlling the conveying speed of the sheath, which can be driven at different conveying speeds. 1221464761321278921. Device for ensheathing at least one conductor () in a sheath () that consists of plastic , with an extruder () , a first cooling system () arranged behind the extruder () , a first conveying system () behind the first cooling system () , and another conveying system () for fixing the length of the sheath () relative to the conductor () , wherein the first conveying system () has two means ( , ) for controlling the conveying speed of the sheath () , which can be driven at different conveying speeds.29125. Device according to claim 1 , wherein at least one means () for controlling the conveying speed is a belt pull-off claim 1 , between whose belts () the sheathed conductor () is conveyed by friction.3810115. Device according to claim 1 , wherein at least one means () for controlling the conveying speed has two disks ( claim 1 , ) claim 1 , between which the sheathed conductor () is conveyed by friction.41118. Device according to claim 3 , wherein at least one of the disks () has a V-shaped groove () on its periphery.5. Device according to claim 4 , wherein a flank angle (α) of the groove lies between 1° and 10°.610. Device according to claim 4 , wherein a disk () has a flat periphery.789. Device according to claim 1 , wherein the distance (A) between the means ( claim 1 , ) can be set to control the conveying speed.88989. Device according to claim 1 , wherein another cooling system is arranged between the means ( claim 1 , ) for controlling the conveying speed or wherein the means ( claim 1 , ) for ...

PROPYLENE POLYMER FOR HIGH-TENACITY FIBERS AND NONWOVENS

Propylene polymers having a melt flow index in the range from 3.0 dg/min to 8.0 dg/min can be particularly suited for high-tenacity fibers and yarns and nonwovens. The propylene polymers can be produced by a process that includes polymerizing propylene or propylene and at least one comonomer in presence of a Ziegler-Natta polymerization catalyst, an aluminium alkyl, and hydrogen. 1. Propylene polymer with up to and including 1.0 wt % , relative to the total weight of the propylene polymer , of at least one comonomer , said propylene polymer being characterized bya melt flow index in the range from 3.0 to 8.0 dg/min, determined according to ISO 1133, condition L, 230° C., 2.16 kg,a xylene solubles content in the range from 1.0 wt % to 3.5 wt %, relative to the total weight of the propylene polymer,a polydispersity index of at least 3.0 and of at most 5.0,a content of mmmm pentads in the range from 97.0% to 99.0%, determined on the insoluble heptane fraction of the xylene insolubles fraction, and{'sup': −4', '−1', '−4', '−1, 'a recovery compliance in the range from 2.5·10Pato 5.5·10Pa.'}2. The propylene polymer according to with up to and including 0.05 wt % claim 1 , relative to the total weight of the propylene polymer claim 1 , of at least one comonomer selected from the group of alpha-olefins having from 1 to 10 carbon atoms.3. The propylene polymer according to claim 2 , wherein the melt flow index is in the range from 4.0 dg/min to 8.0 dg/min claim 2 , determined according to ISO 1133 claim 2 , condition L claim 2 , at 230° C. and 2.16 kg.4. The propylene polymer according to claim 2 , wherein the xylene solubles content is in the range from 1.5 wt % to 3.5 wt % claim 2 , relative to the total weight of the propylene polymer.5. The propylene polymer according to claim 2 , wherein the recovery compliance is in the range from 4.0·10-4 Pa-1 to 5.5·10-4 Pa-1.6. The propylene polymer according to claim 1 , with from more than 0.05 wt % to 1.0 wt % claim 1 , relative ...

Nowoven Tack Cloth for Wipe Applications

A nonwoven web material that contains fibers formed by compounding at least one polymer with a tackifier is provided. The nonwoven web material can be used as a wipe or tack cloth and can exhibit a dust holding capacity of at least about 10 grams/mand a lint potential of less than about 5 fibers/cm. In addition to containing a tackifier that is compounded with the polymer(s) used to form the fibers of the web, the nonwoven web material can be textured, post-bonded, apertured, or treated with elemental fluorine gas to further improve its dust holding capacity and minimize lint production. In addition, the nonwoven web material leaves minimal residue after contacting a surface. 1. A nonwoven web material , the nonwoven web material comprising fibers , wherein the fibers comprise a first polymer and a second polymer , wherein the first polymer comprises an olefin homopolymer and the second polymer comprises an olefin-based plastomer having a glass transition temperature of less than about 25° C. , wherein the nonwoven web material has a dust holding capacity of from about 10 grams/mto about 130 grams/m , and wherein the amount of residue present on a surface wiped with the nonwoven web material ranges from about 0 grams/to about 0.02 grams/m.2. The nonwoven web material of claim 1 , wherein the fibers further comprise a tackifier claim 1 , wherein the tackifier is compounded with the first polymer and the second polymer.3. The nonwoven web material of claim 1 , wherein the olefin-based plastomer comprises an ethylene/α-olefin copolymer claim 1 , a propylene/α-olefin copolymer claim 1 , or a combination thereof.4. The nonwoven web material of claim 3 , wherein the olefin-based plastomer comprises an olefinic block copolymer.5. The nonwoven web material of claim 1 , wherein the nonwoven web material is post-bonded.6. The nonwoven web material of claim 1 , wherein the nonwoven web material is apertured.7. The nonwoven web material of claim 1 , wherein the nonwoven web ...

STABLE ELECTROSPINNING COMPOSITION FOR STABLE NANO-/SUBMICROSTRUCTURE PRODUCTION AND PREPARATION METHOD THEREOF

The present invention discloses an electrospinning composition comprising a catalyst and a functionalized polymer or copolymer bearing one or more epoxy ring. The mixture further comprises an anhydride, preferably phthalic anhydride as a cross-linking agent. Wherein a molar ratio of epoxy to anhydride in the electrospinning composition is within the range of 1:1 to 50:1. The present invention further discloses a preparation method of the electrospinning composition and an electrospun nano-/submicrostructures prepared using the method and composite material comprising the electrospun nano-/submicrostructures. 117-. (canceled)18. A preparation method for an electrospinning composition , comprising the steps of: preparing a mixture comprising a solvent , a catalyst and an anhydride , merging the mixture with a polymer solution comprising a functionalized polymer or copolymer , wherein the functionalized polymer or copolymer having one or more epoxy ring to make a molar ratio of epoxy to anhydride in the electrospinning composition within the range of 1:1 to 50:1.19. The method according to claim 18 , wherein the functionalized copolymer is a styrene/glycidyl methacrylate copolymer claim 18 , and the catalyst is a tributyl amine.20. The method according to claim 18 , wherein the anhydride is used as a cross-linking agent.21. The method according to claim 18 , wherein the anhydride is a phthalic anhydride.22. The method according to claim 18 , wherein the catalyst is a tertiary amine.23. The method according to claim 18 , wherein the catalyst is a tributyl amine.24. The method according to claim 18 , wherein the molar ratio of epoxy to anhydride is within the range of 2:1 to 10:1.25. The method according to the claim 18 , wherein the molar ratio of epoxy to anhydride is within the range of 4:1 to 6:1.26. The method according to claim 18 , wherein the molar ratio of epoxy to anhydride is within the range of 4.5:1 to 5.5:1.27. The method according to claim 18 , wherein the ...

STRANDS, NETTINGS, DIES, AND METHODS OF MAKING THE SAME

Netting () comprising an array of polymeric strands (), wherein the polymeric strands are periodically joined together at bond regions throughout the array, and wherein at least a plurality (i.e., at least two) of the polymeric strands have a core () of a first polymeric material and a sheath () of a second, different polymeric material. Nettings described herein have a variety of uses, including wound care, tapes, filtration, absorbent articles, pest control articles, geotextile applications, water/vapor management in clothing, reinforcement for nonwoven articles, self bulking articles, floor coverings, grip supports, athletic articles, and pattern coated adhesives. 1. A netting comprising an array of polymeric strands , wherein the polymeric strands are periodically joined together at bond regions throughout the array , and wherein at least a plurality of the polymeric strands have a core of a first polymeric material and a sheath of a second , different polymeric material , where in at least one of (a) the strands do not substantially cross over each other or (b) the netting has a thickness up to 750 micrometers.2. The netting of having a basis weight in a range from 5 g/mto 400 g/m.3. The netting of having a basis weight in a range from 0.5 g/mto 40 g/m.4. A method of making the netting of claim 1 , the method comprising:providing an extrusion die comprising a plurality of shims positioned adjacent to one another, the shims together defining at least a first cavity and a second cavity, and a dispensing surface, wherein the dispensing surface has an array of dispensing orifices defined by an array of vestibules, wherein the plurality of shims comprises a plurality of a repeating sequence of shims, wherein the repeating sequence comprises: shims that provide a fluid passageway between the first cavity and one of the vestibules, shims that provide a second passageway extending from the second cavity to the same vestibule, and shims that provide a third passageway ...

ADDITIVE MANUFACTURING TECHNIQUES AND SYSTEMS TO FORM COMPOSITE MATERIALS

A printer system may include a coaxial extruder head that extrudes a core, a bulk, and/or a core and bulk cladding to form complex structures without retooling. The coaxial extruder head may include a distribution channel with an entrance and an exit, a priming chamber that surrounds the distribution channel. The priming chamber may include an outlet and a first inlet, a heating element thermally connected to the priming chamber, and a nozzle connected to the outlet of the priming chamber. Further, the nozzle may converge from the outlet of the priming chamber to an orifice of the nozzle. In addition, the exit of the distribution channel may be disposed at the orifice of the nozzle. This structure facilitates extruding a core and cladding type composite from the extruder head. 1. An active molding system comprising:a 3D printer having an extruder head; 'a foot configured to shape the exposed layer of material; and', 'a shaping actuator configured to move independent of the extruder head and to follow a displacement of the extruder head, wherein the shaping actuator includesa controller configured to control the 3D printer and the shaping actuator.2. The system of claim 1 , wherein the shaping actuator further includes:a pressure regulator configured to maintain pressure to an exposed layer of material extruded from the extruder head, and3. The system of claim 1 , wherein the foot is a roller.4. The system of claim 1 , wherein the shaping actuator includes a continuous tread.5. The system of claim 1 , wherein the shaping actuator includes an air nozzle configured to direct fluid on to one or more positions of the exposed layer of material claim 1 , wherein the fluid is heated or cooled.6. The system of claim 1 , wherein the foot is cambered.7. The system of claim 1 , wherein the foot is flat.8. The system of claim 1 , wherein the shaping actuator includes a blade.9. The system of claim 8 , wherein the blade is heated.10. The system of claim 8 , further comprising a ...

THERMO-REGULATED FIBER AND PREPARATION METHOD THEREOF

The present invention provides a thermo-regulated fiber and a preparation method thereof by using a new polymeric phase-change material and adopting a new fiber preparation method, and the resulting thermo-regulated fiber has good thermo-regulating properties and a good thermal stability. The thermo-regulated fiber has a composite structure, and the cross-sectional structure is an sea-island type or a concentric sheath/core type, characterised in that the polymeric phase-change material is a polyethylene glycol n-alkyl ether (structural formula: H(OCHCH)OCH), where the repeating unit number m of the ethylene glycol is 1 to 100, the number n of carbon atoms in the n-alkyl is 11 to 30. The present invention further relates to a preparation method of a thermo-regulated fiber which includes one of the following processes: (1) A melt composite spinning process; (2) Solution composite spinning process; (3) Electrostatic solution composite spinning process. Further, the present invention is characterised as follows: (1) a new polymeric phase-change material polyethylene glycol n-alkyl ether is used; (2) Component A of the thermo-regulated fiber may form a continuous crystallization region; (3) The thermo-regulated fiber can be prepared in various forms by many preparation methods such as melt composite spinning, solution composite spinning and solution static composite spinning. 1. A thermo-regulated fiber , comprising a polymeric phase-change material as an ingredient A and a fiber-forming polymer as an ingredient B , wherein the mass fraction of the ingredient A in the fiber is 20% to 60% , the mass fraction of the ingredient B in the fiber is 80% to 40% , and the fiber is prepared by a melt composite spinning , solution composite spinning or solution static composite spinning process , the thermo-regulated fiber has a composite structure , the cross-sectional structure is a sea-island type or a concentric sheath/core type , characterized in that the polymeric phase- ...

Pad Comprising an Extruded Mesh and Method of Making Thereof

A structure for use in a compressible resilient pad. The structure contains both axially elastomeric strands and relatively inelastic strands co-extruded in various patterns. The structure has a high degree of both compressibility under an applied normal load and excellent recovery (resiliency or spring back) upon removal of that load. 1. A pad comprising: a first layer of parallel strands running in a longitudinal direction (LD);', "a second layer of parallel strands on one side of the first layer, the second layer's strands running in a transverse direction (TD) and comprising elastomeric strands;", 'and a third layer of parallel strands on an opposite side of the second layer as the first layer and running in the same direction as those of the first layer,', 'wherein the first, second, and third layers are co-extruded at substantially the same time such that the strands in the first layer are positioned or aligned within the space between strands in the third layer; and, 'a bicomponent extruded mesh, the mesh includingone or more layers of a woven fabric, membrane, LD or TD yarn arrays attached to a top and/or bottom surface of the extruded mesh.2. The pad of claim 1 , further comprising:one or more layers of a spunbond nonwoven or batt material attached to a top and/or bottom layer of the woven fabric, membrane, LD or TD yarn array and/or the extruded mesh.3. A pad comprising: a first layer of parallel strands running in a longitudinal direction;', "a second layer of parallel strands on one side of the first layer, the second layer's strands running in a transverse direction, and comprising elastomeric strands;", 'and a third layer of parallel strands on the opposite side of the second layer as the first layer and running in the same direction as those of the first layer,', 'wherein the first, second, and third layers are co-extruded at substantially the same time such that the strands in the first layer are positioned or aligned within the space between strands ...

Method for Producing Antimicrobial Polyester Fiber Yarn Containing Volcanic Ash

The present invention relates to a method for producing an antimicrobial polyester fiber yarn containing volcanic ash, the method comprising the steps of: crushing and heating volcanic ash, and allowing the heated volcanic ash to collide under an air stream in an air classifier mill system to obtain volcanic ash powder; subjecting the volcanic ash powder to nano-milling to obtain nano-sized volcanic ash particles; disintegrating the volcanic ash particles to prepare nano volcanic ash; mixing the prepared nano volcanic ash with polyester for fiber use at a weight ratio of 10:90-30:70, followed by melt extrusion, thereby preparing a highly dispersed volcanic ash master batch; and mixing the volcanic ash master batch with polyester for fiber use at a weight ratio of 4:96-8:92, followed by spinning to produce an antimicrobial polyester fiber yarn.

SPINNING APPARATUS, NOZZLE HEAD AND SPINNING METHOD

According to one embodiment, a spinning apparatus includes a nozzle head, a power generating, and a first atmosphere controller. The nozzle head dispenses a source material liquid from a tip portion toward a collector. The power generating unit generates an electric potential difference between the tip portion and the collector. The first atmosphere controller controls an atmosphere of a first space at a periphery of the nozzle head. 1. A spinning apparatus , comprising:a nozzle head dispensing a source material liquid from a tip portion toward a collector;a power generating unit generating an electric potential difference between the tip portion and the collector; anda first atmosphere controller controlling an atmosphere of a first space at a periphery of the nozzle head.2. The spinning apparatus according to claim 1 , wherein the first atmosphere controller generates an air flow claim 1 , the air flow having humidity that is adjusted.3. The spinning apparatus according to claim 2 , wherein the humidity of the air flow is lower than a humidity of a periphery of the collector.4. The spinning apparatus according to claim 2 , wherein the first atmosphere controller adjusts a temperature of the air flow.5. The spinning apparatus according to claim 1 , further comprising a second atmosphere controller controlling an atmosphere of a second space claim 1 , the second space being above the collector and being other than the first space.6. The spinning apparatus according to claim 2 , further comprising an air flow guide guiding the air flow generated from the first atmosphere controller into the first space.7. The spinning apparatus according to claim 6 , wherein the air flow guide is disposed between the collector and an outflow port of the air flow of the first atmosphere controller.8. The spinning apparatus according to claim 1 , wherein a curvature of a protrusion of a surface of a main body portion of the nozzle head is smaller than a curvature of a surface of the ...

METAL-ORGANIC FRAMEWORK COMPOSITES, AND METHODS OF SYNTHESIS THEREOF

Some embodiments include a method of preparing polymer nanofiber composites using a cross-linkable polymer precursor solvated with a solvent, and forming a nanofiber precursor by mixing with a metal-organic-framework (MOF) crystal material that includes a metal ion coupled to at least one multidentate ligand. Further, the method can include forming a plurality of nanofibers by electro-spinning the nanofiber precursor, where at least a portion of the nanofibers includes a dispersion of the first MOF crystal material. The method can include crosslinking the plurality of nanofibers by irradiating the plurality of nanofibers with UV light, IR light, visible light, gamma radiation, and/or electro-beam radiation. Further, the method can include applying a second MOF crystal material between the cross-linked nanofibers and the first MOF material. 1. A method of preparing polymer nanofiber composites comprising:providing at least one cross-linkable polymer precursor;at least partially solvating the at least one cross-linkable polymer precursor with at least one solvent;forming a nanofiber precursor by mixing at least one first metal-organic-framework (MOF) crystal material with the solvated polymer precursor, the at least one first MOF crystal material comprising at least one metal ion coupled to at least one multidentate ligand;forming a plurality of nanofibers by electro-spinning at least some portion of the nanofiber precursor, wherein at least a portion of the nanofibers include a dispersion of the at least one first MOF crystal material;crosslinking at least a portion of the plurality of nanofibers by irradiating at least a portion of the plurality of nanofibers with at least one of UV light, IR light, visible light, gamma radiation, electro-beam radiation; andintroducing a second MOF crystal material between at least a portion of the cross-linked nanofibers and the at least one first MOF material.2. The method of claim 1 , wherein the second MOF crystal material ...

POLYMER COMPOSITION

A composition may contain a first polymer, a second polymer, and a block copolymer. The first polymer may be polyactic acid, starch, polybutylene succinate, poly(butylene adipate-co-terephthalate), or a mixture thereof. The second polymer may be polybutadiene, high impact polystyrene, or a mixture thereof. The block copolymer may be a block copolymer of polylactic acid and polybutadiene. The composition may be prepared by a process that includes contacting the first polymer with the second polymer and the block copolymer. Articles may be prepared from the composition. 114-. (canceled)15. A composition comprising:a first polymer selected from the group consisting of polylactic acid, starch, polybutylene succinate, polybutylene adipate-co-terephthalate), and mixtures thereof;a second polymer selected from the group consisting of polybutadiene, high impact polystyrene, and mixtures thereof; anda block copolymer of polylactic acid (PLA) and polybutadiene (PB).16. The composition according to claim 15 , wherein the block copolymer is selected from the group consisting of PLA-PB diblock copolymer claim 15 , PLA-PB-PLA triblock copolymer claim 15 , PLA-PB multiblock copolymer claim 15 , PLA-PB star copolymers claim 15 , PLA-PB comb copolymers claim 15 , PLA-PB gradient containing block copolymers; and mixtures thereof.17. The composition according to claim 15 , wherein the first polymer is polylactic acid.18. The composition according to claim 15 , wherein the second polymer is polybutadiene.19. The composition according to claim 15 , wherein the composition comprises from 5 to 95% by weight of the first polymer based on a total weight of the composition.20. The composition according to claim 15 , wherein the composition comprises from 5 to 95% by weight of the second polymer based on a total weight of the composition.21. The composition according to claim 15 , wherein the composition comprises from 1 to 90% by weight of the block copolymer based on a total weight of the ...