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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 6380. Отображено 100.
08-03-2012 дата публикации

Apparatus, systems and methods for producing particles using rotating capillaries

Номер: US20120056342A1
Автор: Evan E. Koslow
Принадлежит: GABAE TECHNOLOGIES LLC

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

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Номер записи: 1
19-04-2012 дата публикации

Method for manufacturing fine polymer, and fine polymer manufacturing apparatus

Номер: US20120091606A1
Автор: Hiroto Sumida, Kazunori Ishikawa, Mikio Takezawa, Mitsuhiro Takahashi, Takahiro Kurokawa, Yoshiaki Tominaga
Принадлежит: Individual

A method for manufacturing a fine polymer including: generating superheated steam by a superheated steam generating unit ( 101 ); adjusting the pressure of the generated superheated steam by a pressure adjusting unit ( 102 ); receiving a polymer by a reception unit ( 103 ); heating the received polymer to a predetermined temperature by a heating unit ( 104 ); discharging the heated polymer through a first discharge port ( 111 ); and discharging the superheated steam through a second discharge port ( 121 ) at the same time as the time when the heated polymer is discharged. Here, the second discharge port ( 121 ) surrounds the first discharge port ( 111 ), and the first discharge port ( 111 ) and the second discharge port ( 121 ) face the same direction.

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Номер записи: 2
23-08-2012 дата публикации

Highly functional spunbonded fabric made from particle-containing fibres and method for producing same

Номер: US20120215148A1
Автор: Bernd Riedel, Frank-Gunter Niemz, Marcus Krieg, Yvonne Ewert
Принадлежит: Thueringisches Institut fuer Textil und Kunststoff Forschung eV

The invention relates to functional spunbonded fabrics incorporating fibers made from non-fusible polymers containing one or more functional additives. The fibers are interwoven and interlocked to form a firm fleece composite, have different lengths, and have aspect ratios above 1,000. The fibers have a mean diameter of 0.1 to 500 micrometres and diameter variations within a fiber and/or among each other of at least 30%. The fibers contain more than 40 wt % of finely distributed functional additives in solid and/or liquid form. The spunbonded fabric is produced from a spinning solution containing the non-fusible polymer dissolved in a direct solvent and at least one functional additive. The spinning solution is extruded out of a spinneret, and the resulting strands are drawn in the longitudinal direction to form filaments or fibers, stabilized and laid down to form a fleece fabric. Exemplary spunbonded fabrics include clothing, technical textiles and filters.

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Номер записи: 3
25-10-2012 дата публикации

Fibre-forming centrifuge, device and method for forming mineral fibres

Номер: US20120270718A1
Автор: Jean-Luc Bernard, Oleg Boulanov
Принадлежит: Saint Gobain Isover SA France

A centrifuge to rotate about a rotation axis, the centrifuge including: an annular wall pierced with a plurality of holes, the annular wall having the rotation axis as its axis of symmetry; and a row of one continuous relief or of discontinuous reliefs, situated on an outer surface of the centrifuge, on the annular wall and/or above and close to the annular wall when the centrifuge is in a centrifuging position, the row being horizontal or inclined at an angle of more than 0° and less than 90° relative to the horizontal when the centrifuge is in the centrifuging position. The centrifuge makes it possible to improve energy consumption of a device for forming mineral fibers furnished with the centrifuge.

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Номер записи: 4
22-11-2012 дата публикации

Multilayer apparatuses and methods for the production of microfibers and nanofibers

Номер: US20120294966A1
Автор: Ed Peno, Roger Lipton, Stephen Kay
Принадлежит: Fiberio Technology Corp

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

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Номер записи: 5
10-01-2013 дата публикации

Multi-component fibers produced by a rotational spinning method

Номер: US20130011676A1
Автор: Denis Reibel, Dirk Grafahrend, Wiebke SCHMITZ
Принадлежит: CARL FREUDENBERG KG

A multi-component fiber includes a first component made of a first fiber raw material and a second component made of a second fiber raw material. The first and second components are combined by rotational spinning so as to firm a fiber body.

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Номер записи: 6
10-01-2013 дата публикации

Meta-type wholly aromatic polyamide fiber

Номер: US20130012629A1
Автор: Kotarou Takiue, Tomoyoshi Chiba
Принадлежит: Teijin Techno Products Ltd

There is provided a novel meta-type wholly aromatic polyamide fiber which has a high breaking strength and can inhibit coloration or discoloration under high temperatures, while retaining latent properties of the meta-type wholly aromatic polyamide fiber, such as heat resistance and flame retardancy. Components or conditions of a coagulation bath are appropriately controlled so as to give a dense coagulation state having no skin-core structure, plastic stretching is performed within a specific ratio, and further, subsequent heat stretching conditions are made proper, thereby obtaining a meta-type wholly aromatic polyamide fiber containing substantially no layered clay mineral, in which the amount of solvent remaining in the fiber is 1.0% by mass or less based on the whole fiber, and the breaking strength of the fiber is from 4.5 to 6.0 cN/dtex.

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Номер записи: 7
07-02-2013 дата публикации

Poly-trimethylene terephthalate solid core fibrillation-resistant filament having a substantially triangular cross section, a spinneret for producing the filament, and a carpet made therefrom

Номер: US20130034658A1
Автор: Harry Vaughn Samuelson, Jing-Chung Chang, Kalika Ranjan Samant
Принадлежит: EI Du Pont de Nemours and Co

In a first aspect the invention is a solid core fibrillation-resistant, synthetic polymeric filament having three substantially equal length convex sides. The sides through substantially rounded tips centered by a distance “a” from the axis of the filament. Each rounded tip has a radius substantially equal to a length “b”. Each tip lies on a circumscribed circle having a radius substantially equal to a length (a+b) and the midpoint of each side lies on an inscribed circle having a radius substantially equal to a length “c”. The filament has a denier-per-filament in the range 10<“dpf”<35; the distance “a” lies in the range 0.00025 inches (6 micrometers)<“a”<0.004 inches (102 micrometers); the distance “b” lies in the range from 0.00008 inches (2 micrometers)<“b”<0.001 inches (24 micrometers); the distance “c” lies in the range from 0.0003 inches (8 micrometers)<“c”<0.0025 inches (64 micrometers); and the modification ratio (“MR”) lies in the range from about 1.1<“MR”<about 2.0. In still another aspect the present invention is directed to a spinneret plate having a plurality of orifices formed therein for forming the solid core fibrillation-resistant, synthetic polymeric filament. Each orifice has a center and three sides with each side terminating in a first and a second end point and with a midpoint therebetween. The sides can be either concave or linear connected by either a circular or a linear end contour.

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Номер записи: 8
14-02-2013 дата публикации

Polyester fiber and preparation method for the same

Номер: US20130040522A1
Автор: Dong-Jin Kwak, Hee-jun Kim, Jae-Hyung Kim, Jung-Hoon Youn, Ki-Jeong Kim, Sang-Mok Lee
Принадлежит: KOLON INDUSTRIES INC

The present invention relates to a polyester fiber applicable to an airbag fabric, and more particularly to a polyester fiber, a preparation method for the polyester fiber, and an airbag fabric prepared from the polyester fiber, where the polyester fiber has an elongation of 0.8 to 2.0% under a tensile strength of 1.0 g/d at the room temperature, and an additional elongation of 1.5 to 5% under a tensile strength of 8.8 g/d to the maximum. The polyester fiber of the present invention which secures low initial Young's modulus and good mechanical properties can be used in an airbag fabric not only to provide excellences in air sealing effect as well as packing property and dimensional stability but also to minimize collision impacts on occupants, thereby protecting the occupants with safety.

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Номер записи: 9
22-08-2013 дата публикации

Melt blown media for air filtration

Номер: US20130212993A1
Автор: Antti Tynys, Joachim Fiebig
Принадлежит: Borealis AG

Melt-blown fiber (MBF) comprising a propylene copolymer (PP), wherein the melt-blown fiber (MBF) and/or the propylene copolymer (PP) has/have (a) a melt flow rate MFR 2 (230° C.) measured according to ISO 1133 of at least 300 g/10 min, (b) a comonomer content of 1.5 to 6.0 wt.-%, the comonomers are ethylene and/or at least one C 4 to C 12 α-olefin, (c) <2,1> regiodefects of more than 0.4 mol.-% determined by 13 C-NMR spectroscopy.

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Номер записи: 10
22-08-2013 дата публикации

SPINNERET FOR SPINNING THREADS, SPINNING DEVICE FOR SPINNING THREADS AND METHOD FOR SPINNING THREADS

Номер: US20130217290A1
Автор: Gerking Luder
Принадлежит:

The invention relates to a spinneret for spinning threads from a spinning mass—in the form of a melt or solution of natural or synthetic origin—comprising a rotationally symmetrical spinneret. The rotationally symmetrical spinneret inner part is surrounded at least partially by a rotationally symmetrical outer part, wherein in the longitudinal direction between the spinneret inner part and outer part an insulating chamber is formed, in which a gas, preferably air, is received in order to form an insulating gas layer. The invention further relates to a spinning device for spinning threads from a spinning mass, comprising a spinneret part and a gas nozzle part arranged at a distance from the spinneret part. A plurality of spinnerets according to the invention are inserted in the spinneret part and project from the spinneret part, facing the gas nozzle part, and the gas nozzle part comprises a plurality of gas nozzles associated with the spinnerets. The gas nozzles are designed as acceleration nozzles for a gas flow that is conducted through the respective gas nozzle and encompasses the monofilaments. Said spinnerets are used in a method for producing spunbonded materials or yarns from polymers of natural or synthetic origin, in order to build up said materials or yarns from extremely fine threads having an average thread diameter of less than 1 μm. The threads from the individual spinnerets can also be collected using conventional winding mechanisms to form yarns on bobbins. 116.-. (canceled)17. Arrangement of a spinneret and an acceleration nozzle for a spinning device for spinning threads from a spinning mass by splitting a monofil which is spun from the spinneret , the spinneret having a spinneret inner part and an outer part which surrounds at least partially the spinneret inner part , the spinneret inner part , in the longitudinal direction thereof , having a channel for supplying spinning mass to a spinneret tip part having at least one exit boring ,whereinthe ...

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Номер записи: 11
29-08-2013 дата публикации

METHOD FOR PRODUCING TERYLENE FIBER USING POLYESTER WASTE

Номер: US20130221553A1
Автор: Chen Qiuhuo
Принадлежит:

A method for producing terylene fiber using polyester waste is disclosed. Firstly, dried polyester waste is sent into a screw extruder, then is melt and extruded to be polyester melt. Whereafter, the melt is filtrated twice to remove impurities. Then macromolecule polymerization reaction is taken place in the polyester melt to homogenize the molecular weight of macromoleclar polymer and to increase the viscosity of the polyester. Then the melt with increased viscosity is finely filtrated using melt precision filter. Whereafter, the melt is sent into a spinning box to execute metering spinning, then is cooled and solidified to be filaments. Finally, the filaments are wound according to various process requirements. The method can increase the quality of regenerated polyester spinning melt. The regenerated polyester melt has less impurities and homogenous viscosity after multiple filtrating. The fiber product has advantages of less end breakage rate, high full-bobbin rate, high finished product rate and less wastage. 1. A method for producing terylene fiber using polyester waste is achieved by a nozzle assembled to a bottle , the nozzle comprising:a press cover, a revolving cover, and a cylinder to construct the appearance of the nozzle;the press cover having a first tube extending therefrom, a first channel defined in the first tube for melting substances or liquid to flow through;the revolving cover being screwed on an opening of the bottle for sealing the bottle;the cylinder having an upper chamber and a lower chamber, the upper chamber abutting against the inner wall of the opening of the bottle;a first melt precision filter, a spinning box, a connecting tube, a first piston, a spring, a second piston, a needle valve and an unidirectional valve being assembled into the nozzle;the first melt precision filer having a second tube defined therethrough, a first filtrated mesh being set on the bottom of the second tube, a net being set on the top of the second tube;the ...

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Номер записи: 12
14-11-2013 дата публикации

APPARATUSES AND METHODS FOR THE PRODUCTION OF MICROFIBERS AND NANOFIBERS

Номер: US20130300012A1
Автор: Lozano Karen, Padron Simon
Принадлежит:

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. 1. A device for use in a microfiber and/or nanofiber producing system , the device comprising:a body comprising a body cavity and a coupling member, wherein the body cavity is configured to receive material to be produced into a fiber, wherein the body is couplable to a driver through the coupling member; andat least two blades extending from the body, wherein each of the blades comprises a blade cavity coupled to the body cavity, wherein material to be produced into a fiber passes from the body cavity to the blade cavity during use, and wherein one or more openings are formed at or proximate to an end of each blade extending through a side wall of the blade;wherein, during use, rotation of the body causes material in the body to be ejected through one or more openings to produce microfibers and/or nanofibers.2. The device of claim 1 , wherein the device comprises:a first member comprising: a first member central portion; at least two arms extending from the first member central portion; a first member coupling surface formed along an edge of the first member central portion and the arms extending from the first member central portion; and one or more grooves formed in the first member coupling surface, proximate to an end of the arms,a second member comprising: a second member central portion; at least two arms extending from a second member central portion; a second member coupling surface formed along an edge of the second member central portion and the arms extending from the second member central portion; and one or more grooves formed in the first member coupling surface, proximate to an end of the arms, wherein the fiber producing device is couplable to a driver through the coupling member;wherein the first ...

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Номер записи: 13
06-02-2014 дата публикации

DEVICES AND METHODS FOR THE PRODUCTION OF MICROFIBERS AND NANOFIBERS HAVING ONE OR MORE ADDITIVES

Номер: US20140035177A1
Автор: Kay Stephen, Lipton Roger, Ner Yogesh
Принадлежит: Fiberio Technology Corporation

Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers, which include additives that modify one or more properties of the produced fibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. 1. A method of producing microfibers and/or nanofibers , comprising: 'a body comprising one or more openings and a coupling member, wherein the body is configured to receive material to be produced into a fiber, and wherein the fiber producing device is coupled to the driver by the coupling member;', 'placing material in a fiber producing device, the material comprising a polymer and an ionizing compound, the fiber producing device comprisingrotating the fiber producing device at a speed of at least about 1000 rpm, wherein rotation of the fiber producing device causes material in the body to be passed through one or more openings, into one or more outlet elements, and ejected through one or more outlet elements to produce microfibers and/or nanofibers; andcollecting at least a portion of the produced microfibers and/or nanofibers using an electrically charged plate.2. The method of claim 1 , wherein the ionizing compound is an ionic surfactant.3. The method of claim 1 , wherein the ionic surfactant comprises an anionic surfactant.4. The method of claim 1 , wherein the ionic surfactant comprises a cationic surfactant.5. The method of claim 1 , wherein the ionizing compound is an organic salt.6. The method of claim 1 , wherein the ionizing compound is an inorganic salt.7. The method of claim 1 , wherein the ionizing compound is a metal halide.8. The method of claim 1 , wherein the ionizing compound is a Group 1 or Group 2 halide salt.9. The method of claim 1 , wherein the ionizing compound is an ionomer.10. The method of claim 1 , wherein ionizing material is a conductive carbon compound.11. The method of claim 1 , further comprising ...

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Номер записи: 14
06-02-2014 дата публикации

DEVICES AND METHODS FOR THE PRODUCTION OF MICROFIBERS AND NANOFIBERS

Номер: US20140035179A1
Автор: Barocio Carlos, Carr Thomas D., Kay Stephen, Moore Joe
Принадлежит: Fiberio Technology Corporation

Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers, that include additives that modify one or more properties of the produced fibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Fiber producing devices with features that enhance fiber production and adaptability to different types of fiber are described. 1. A device for use in a microfiber and/or nanofiber producing system , the device comprising:a substantially circular body, wherein a diameter of the body varies between a top surface of the body and a bottom surface of the body,an internal cavity disposed in the body, wherein the internal cavity receives material to be produced into a fiber,one or more openings that allow material to be passed from the internal cavity to the exterior of the body;a coupling member, wherein the body is couplable to a driver through the coupling member; andwherein, during use, rotation of the body causes material in the body cavity to be passed through one or more openings and ejected from one or more material outlets to produce microfibers and/or nanofibers.2. The device of claim 1 , wherein the shape of the body creates a predefined airflow in a region proximate to the openings.3. The device of claim 1 , wherein the diameter of the body proximate to the top surface is less than the diameter of the body proximate to the center of the body.4. The device of claim 1 , wherein the diameter of the body proximate to the bottom surface is less than the diameter of the body proximate to the center of the body.5. The device of claim 1 , wherein the diameter of the body proximate to the top surface is less than the diameter of the body proximate to the center of the body claim 1 , and wherein the diameter of the body proximate to the bottom surface is less than the diameter of the body proximate to the center of the body.6. The device ...

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Номер записи: 15
13-02-2014 дата публикации

SYSTEMS AND METHODS OF HEATING A FIBER PRODUCING DEVICE

Номер: US20140042651A1
Автор: Carr Thomas D., Jimenez Carlos Alberto Gomez, Kay Stephen, Moore Joe
Принадлежит: Fiberio Technology Corporation

Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Systems and methods of heating the fiber producing device, before and during use, are also described herein. 1. A microfiber and/or nanofiber producing system comprising:a fiber producing device comprising a body comprising one or more openings and a coupling member, wherein the body is configured to receive a material to be produced into a fiber;an inductive heater positioned proximate to the fiber producing device such that, during use, the inductive heater induces an electrical current in the body, wherein the body is heated by the induced electrical current; anda driver capable of rotating the fiber producing device, wherein the fiber producing device is couplable to the driver through the coupling member; andwherein the inductive heater is stationary with respect to the fiber producing device when the fiber producing device is rotated;wherein, during use, rotation of the fiber producing device causes material in the body to be passed through one or more openings and ejected from one or more openings to produce microfibers and/or nanofibers.2. The system of claim 1 , wherein the body comprises a channel claim 1 , and wherein at least a portion of a coil of the inductive heater is positioned within the channel.3. The system of claim 2 , further comprising an inductive transparent material disposed in the channel.4. The system of claim 1 , further comprising an insulative layer coupled to a bottom surface of the body.5. The system of claim 1 , wherein the body has features that modify the path of the induced current flow through the body.6. The system of claim 1 , wherein the shape of the body produces a homogenous distribution of current through the body.7. The system of claim 1 , wherein the inductive heater ...

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Номер записи: 16
20-02-2014 дата публикации

Polyethylene Fibers and Processes of Forming the Same

Номер: US20140048963A1
Автор: Ashbaugh John, Chevillard Cyril, Li Fengkui, Stephens Wyman
Принадлежит: FINA TECHNOLOGY, INC.

Fibers and methods of forming the fibers are described herein. The fibers generally include an ethylene based polymer exhibiting a molecular weight distribution of from about 2 to about 8. 112-. (canceled)13. A method of forming fiber comprising:providing an ethylene based polymer exhibiting a molecular weight distribution of from about 2 to about 8;heating the ethylene based polymer to a molten state;extruding the ethylene based polymer to form a fiber, wherein the fiber exhibits a tenacity at maximum load of from about 2.0 g/denier at a draw ratio of 3:1 to about 3.3 g/denier; andspinning the fiber at a desired spinning speed.14. The method of claim 13 , wherein the ethylene based polymer is formed by a Ziegler-Natta catalyst.15. The method of claim 14 , wherein the Ziegler-Natta catalyst is formed by:contacting an alkyl magnesium compound with an alcohol to form a magnesium dialkoxide compound;contacting the magnesium dialkoxide compound with a plurality of first agents to form reaction product “A”;contacting reaction product “A” with a second agent to form reaction product “B”, wherein the second agent comprises a transition metal and a halogen;contacting reaction product “B” with a third agent to form reaction product “C”, wherein the third agent comprises a first metal halide and wherein the third agent is a stronger halogenating agent than the second agent;optionally contacting reaction product “C” with a fourth agent to form reaction product “D”, wherein the fourth agent comprises a second metal halide and wherein the fourth agent is a stronger halogenating agent than the third agent; andcontacting reaction product “D” with fifth agent to form a Ziegler-Natta catalyst component, wherein the fifth agent comprises an organoaluminum compound.16. The method of claim 13 , wherein the ethylene based polymer is linear.17. The method of claim 13 , wherein the ethylene based polymer is uni-modal.18. The method of claim 13 , wherein the ethylene based polymer exhibits ...

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Номер записи: 17
06-03-2014 дата публикации

PROCESS FOR MAKING HIGH-PERFORMANCE POLYETHYLENE MULTIFILAMENT YARN

Номер: US20140060307A1
Автор: Jacobs Martinus Johannes Nicolaas, MARISSEN Roeloef, Mencke Jacobus Johannes, Simmelink Joseph Arnold Paul Maria
Принадлежит: DSM IP ASSETS B.V.

Processes for making high-performance polyethylene multi-filament yarns include the steps of a) making a solution of ultra-high molar mass polyethylene in a solvent; b) spinning of the solution through a spinplate containing at least 5 spinholes into an air-gap to form fluid filaments, while applying a draw ratio DRfluid; c) cooling the fluid filaments to form solvent-containing gel filaments; d) removing at least partly the solvent from the filaments; and e) drawing the filaments in at least one step before, during and/or after said solvent removing, while applying a draw ratio DRsolid of at least 4. 1. A ballistic-resistant assembly comprising a plurality of mono-layers consisting essentially of high-performance polyethylene multifilament yarn , the assembly having an areal density of at least 1.5 kg/mand a specific energy absorption of at least 300 J·m/kg as measured against a 9*19 mm FMJ Parabellum bullet according to a test procedure based on Stanag 2920.2. The ballistic-resistant assembly according to claim 1 , wherein the mono-layers contain uni-directionally oriented filaments claim 1 , with the fibre direction in each mono-layer being rotated with respect to the fibre direction in an adjacent mono-layer.3. The ballistic-resistant assembly according to claim 1 , wherein the specific energy absorption of the panel is at least 325 J·m/kg.4. A process for making high-performance polyethylene multifilament yarn comprising the steps ofa) providing a 3-25 mass % solution of ultra-high molar mass polyethylene having an intrinsic viscosity as measured on solutions in decalin at 135° C. of between about 8 and 40 dl/g, in a solvent;{'sub': fluid', 'fluid', 'sp', 'ag', 'sp', 'ag', 'sp', 'ag, 'b) spinning of the solution through a spinplate containing at least 5 spinholes into an air-gap to form fluid filaments, while applying a draw ratio DRof at least 150, wherein DR=DR×DRwhere DRis the draw ratio in the spinholes and DRis the draw ratio in the air-gap, with DRbeing ...

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Номер записи: 18
27-03-2014 дата публикации

APPARATUS, SYSTEMS AND METHODS FOR PRODUCING PARTICLES USING ROTATING CAPILLARIES

Номер: US20140087169A1
Автор: Koslow Evan E.
Принадлежит:

An apparatus for forming particles from a liquid, including a rotor assembly having at least one surface sized and shaped so as to define at least one capillary. Each capillary has an inner region adjacent an axis of rotation of the rotor assembly, an outer region distal from the axis of rotation, and an edge adjacent the outer region. The rotor assembly is configured to be rotated at an angular velocity selected such that when the liquid is received in the inner region of the at least one capillary, the liquid will move from the inner region to the outer region, adopt an unsaturated condition on the at least one surface such that the liquid flows as a film along the at least one surface and does not continuously span the capillary, and, upon reaching the edge, separates from the at least one surface to form at least one particle. 126.-. (canceled)27. A method for forming particles , comprising the steps of:a. providing at least one surface sized and shaped so as to define at least one capillary, said capillary having an inner region, an outer region, and an edge;b. providing a liquid to the inner region of the at least one capillary; andc. rotating the capillary at an angular velocity selected such that the liquid will move from the inner region to the outer region, adopt an unsaturated condition on the at least one surface such that the liquid flows as a film along the at least one surface and does not continuously span the capillary, and, upon reaching the edge, separates from the at least one surface to form at least one particle.2854.-. (canceled)55. The method of claim 27 , wherein the particles are droplets.56. The method of claim 55 , further comprising the step of mixing the droplets with at least one gas.57. (canceled)58. The method of claim 56 , wherein the liquid includes a fuel and the gas includes oxygen claim 56 , and further comprising the step of igniting the mixture in a combustion chamber.5975.-. (canceled)76. A method for emulsifying at least two ...

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Номер записи: 19
03-04-2014 дата публикации

Carbon fiber material, carbon fiber material manufacturing method, and material containing the carbon fiber material

Номер: US20140091033A1
Автор: Takahiro Kitano
Принадлежит: Tec One Co Ltd

The object of the present invention is to provide carbon fiber material having high electrical conductivity at a low cost. A manufacturing method of carbon fiber material comprises a dispersion liquid preparation step, a centrifugal spinning step and a denaturation step. The dispersion liquid preparation step is a step in which dispersion liquid containing resin and carbon particles is prepared. The centrifugal spinning step is a step in which nonwoven fabric made of a carbon fiber precursor is formed from the dispersion liquid. The denaturation step is a step in which the carbon fiber precursor denatures into carbon fiber.

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Номер записи: 20
07-01-2021 дата публикации

Fibers Formed from a Blend of a Modified Aliphatic-Aromatic Copolyester and Theremoplastic Starch

Номер: US20210002792A1
Автор: He Aimin, Shi Bo, Wang James H.
Принадлежит: KIMBERLY-CLARK WORLDWIDE, INC.

A fiber formed from a thermoplastic composition that contains a thermoplastic starch and an aliphatic-aromatic copolyester is provided. The copolyester enhances the strength of the starch-containing fibers and facilitates the ability of the starch to be melt processed. Due to its relatively low melting point, the copolyester may also be extruded with the thermoplastic starch at a temperature low enough to avoid substantial removal of the moisture in the starch. Furthermore, the copolyester is also modified with an alcohol to contain one or more hydroxyalkyl or alkyl terminal groups. By selectively controlling the conditions of the alcoholysis reaction (e.g., alcohol and copolymer concentrations, temperature, etc.), the resulting modified aliphatic-aromatic copolyester may have a relatively low molecular weight. Such low molecular weight polymers have the combination of a higher melt flow index and lower apparent viscosity, which is useful in a variety of fiber forming applications, such as meltblowing nonwoven webs. 1. A fiber formed from a thermoplastic composition that comprises from about 5 wt. % to about 40 wt. % of at least one thermoplastic starch and from about 60 wt. % to about 95 wt. % of an aliphatic-aromatic copolyester terminated with an alkyl group , hydroxyalkyl group , or a combination thereof , wherein the copolyester has a melt flow index of from about 5 to about 200 grams per 10 minutes , determined at a load of 2160 grams and temperature of 190° C. in accordance with ASTM Test Method D1238-E.2. The fiber of claim 1 , wherein the melt flow index of the copolyester is from about 10 to about 100 grams per 10 minutes.3. The fiber of claim 1 , wherein the copolyester has an apparent viscosity of from about 25 to about 500 Pa·scal-seconds claim 1 , determined at a temperature of 150° C. and a shear rate of 1000 sec.4. The fiber of claim 1 , wherein the copolyester has an apparent viscosity of from about 50 to about 400 Pa·scal-seconds claim 1 , ...

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Номер записи: 21
20-01-2022 дата публикации

HIGH-PERFORMANCE POLYETHYLENE MULTIFILAMENT YARN

Номер: US20220018040A1
Автор: Jacobs Martinus Johannes Nicolaas, MARISSEN Roeloef, Mencke Jacobus Johannes, Simmelink Joseph Arnold Paul Maria
Принадлежит:

Processes for making high-performance polyethylene multi-filament yarn are disclosed which include the steps of a) making a solution of ultra-high molar mass polyethylene in a solvent; b) spinning of the solution through a spinplate containing at least 5 spinholes into an air-gap to form fluid filaments, while applying a draw ratio DR; c) cooling the fluid filaments to form solvent-containing gel filaments; d) removing at least partly the solvent from the filaments; and e) drawing the filaments in at least one step before, during and/or after said solvent removing, while applying a draw ratio DRof at least 4, wherein in step b) each spinhole comprises a contraction zone of specific dimension and a downstream zone of diameter Dn and length Dn with Ln/Dn of from 0 to at most 25, to result in a draw ratio DR=DR*DRof at least 150, wherein DRis the draw ratio in the spinholes and DRis the draw ratio in the air-gap, with DRbeing greater than 1 and DRat least 1. High-performance polyethylene multifilament yarn, and semi-finished or end-use products containing said yarn, especially to ropes and ballistic-resistant composites, are also disclosed. 1. A preformed sheet comprising four mono-layers , each mono-layer comprising filaments from multifilament polyethylene yarn , the polyethylene having an IV of between 8 and 40 dl/g as measured on decalin solutions at 135° C. , wherein said filaments in said mono-layers are spread uni-directionally; and wherein the direction of the filaments in each mono-layer is rotated with respect to the direction of the filaments in an adjacent layer , and wherein the preformed sheet exhibits a specific energy absorption of more than 265 and at most 479 J·kg/magainst a 9*19 mm FMJ Parabellum FMJ bullet , as measured on panels assembled from a plurality of the preformed sheets having an areal density of 2.0 kg/m.2. The preformed sheet of claim 1 , wherein the preformed sheet exhibits a specific energy absorption of between 280 and 479 J·kg/ ...

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Номер записи: 22
12-01-2017 дата публикации

MONOFILAMENT, FABRIC AND PRODUCTION METHOD

Номер: US20170009385A1
Автор: DHENDE VIKRAM, Good Brian, Orr Matthew
Принадлежит:

A monofilament is particularly suited for use as a component in an industrial textile such as a papermachine clothing (PMC) fabric. The monofilament is formed from a composition including more than 70 weight % to 99 weight % polyamide and from 1 weight % to less than 30 weight % polyphenylene ether. 1. A monofilament , comprising:a monofilament body formed from a composition including more than 70 weight % to 99 weight % polyamide, and from 1 weight % to less than 30 weight % polyphenylene ether.2. The monofilament according to claim 1 , configured for use as a component in an industrial textile such as a papermachine clothing fabric.3. The monofilament according to claim 1 , wherein said composition does not include any compatibilizer.4. The monofilament according to claim 1 , wherein said composition does not include any compound belonging to the group consisting of fumaric acid claim 1 , maleic acid claim 1 , itaconic acid claim 1 , dimethylmaleate claim 1 , maleimide claim 1 , tetrahydrophthalimide claim 1 , maleic anhydride claim 1 , itaconic anhydride claim 1 , glutaconic anhydride claim 1 , citraconic anhydride and tetrahydrophthalic anhydride.5. The monofilament according to claim 1 , wherein the composition does not include any functionalized olefinic elastomer.6. The monofilament according to claim 1 , wherein a polymer part of said composition is a binary mixture of polyamide and polyphenylene ether.7. The monofilament according to claim 1 , wherein said polyamide is selected from the group consisting of PA6 claim 1 , PA6.6 claim 1 , PA6.T claim 1 , PA6.10 claim 1 , PA6.12 claim 1 , PA6 claim 1 ,6.6 claim 1 , PA4.10 claim 1 , PA5.6 claim 1 , PA5.10 claim 1 , PA5.12 and mixtures thereof.8. The monofilament according to claim 1 , wherein said monofilament body has a loop tenacity which is at least 20% greater than the loop tenacity of a comparative monofilament claim 1 , wherein the comparative monofilament is formed in an identical manner as the ...

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Номер записи: 23
11-01-2018 дата публикации

BLOWING-ASSISTED ELECTROSPINNING

Номер: US20180010263A1
Автор: Faridi Majidi Reza, Gheibi Ali, Naderi Nader
Принадлежит: FANAVARAN NANO-MEGHYAS

A method and an apparatus for fabricating nanofibrous articles is disclosed. The method may include providing a double-walled nozzle with an inner tube coaxially disposed within an outer tube. In addition, the double-walled nozzle is secured in front of a collector and an electrical field is applied between a tip of the double-walled nozzle and the collector. The method further includes preparing a spinning solution by dissolving a polymer in a solvent, mixing a vapor stream of the solvent with a stream of a pressurized gas with a predetermined ratio to obtain a pressurized solvent/gas stream feeding the spinning solution through the inner tube of the double-walled nozzle, and concurrently feeding the pressurized solvent/gas stream through the outer tube of the double-walled nozzle. The spinning solution and the pressurized solvent/gas stream may concurrently be discharged from the double-walled nozzle and drawn toward the collector being collected as nanofibrous articles on the collector. 1. A method for fabricating nanofibrous articles , the method comprising:preparing a spinning solution by dissolving a polymer in a solvent;mixing a vapor stream of the solvent with a stream of a pressurized gas at a predetermined ratio to obtain a pressurized solvent/gas stream;feeding the spinning solution through an inner tube of a double-walled nozzle;concurrently feeding the pressurized solvent/gas stream through an outer tube of the double-walled nozzle, wherein the inner tube is disposed coaxially within the outer tube;applying an electrical field between a tip of the double-walled nozzle and a collector, wherein the double-walled nozzle is secured in front of the collector;discharging the spinning solution and the pressurized solvent/gas stream concurrently from the double-walled nozzle; andproducing nanofibrous articles on the collector.2. The method of claim 1 , wherein the inner tube of the double-walled nozzle extends from a tip of the outer tube of the double-walled ...

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Номер записи: 24
14-01-2021 дата публикации

SPIDER-SILK-LIKE POLYMER FIBER, PREPARATION METHOD THEREFOR AND USE THEREOF

Номер: US20210010162A1
Автор: Cai Chuanlun, Gao Jianming, HAN PENG, Jiang Chao, JIANG Haibin, Lai Jinmei, Li Binghai, Qi Guicun, Qiao Jinliang, Ru Yue, Song Zhihai, Wang Xiang, Zhang Hongbin, ZHANG Jiangru, Zhang Xiaohong
Принадлежит:

The invention relates to a spider-silk-like polymer fiber in the technical field of chemical bionics, a preparation method therefor and the use thereof. The spider-silk-like polymer fiber comprises a matrix polymer and a particle additive dispersed therein, wherein the particles have an average particle size of 0.1-1000 microns, and the polymer fiber has a spider-silk-like microstructure comprising a fiber body and spaced spindle knot structural units on the fiber body, wherein the spindle knot structural units comprise the particles, and the radial height of the spindle knot structural units is greater than the diameter of the fiber body. The preparation method of the polymer fiber of the invention does not require greatly modifying the existing spinning processes, and the equipment does not need to be changed, the process is simple, and the cost is low. The obtained spider-silk-like polymer fiber can realize the directional movement of water droplets on the surface of the fiber, thereby having a water gathering function and can be used for preparing water gathering materials. 1. A spider silk-like polymer fiber , wherein the polymer fiber comprises a matrix polymer and a microparticle additive dispersed therein , the microparticles having an average particle size of 0.1-1000 microns , and the polymer fiber having a spider silk-like microstructure comprising a fiber body and spindle knot structural units distributed at intervals on the fiber body , wherein the spindle knot structural units contain the microparticles , and the radial height of the spindle knot structural units is greater than the diameter of the fiber body.2. The polymer fiber according to claim 1 , characterized in that the spindle knot structural units has a radial height of 10-300 microns claim 1 , preferably 20-200 microns claim 1 , and more preferably 30-150 microns; an axial length of 10-1000 microns claim 1 , preferably 20-700 microns claim 1 , even more preferably 40-300 microns claim 1 , ...

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Номер записи: 25
18-01-2018 дата публикации

Elastic fibre dry spinning mechanism and maintenance control method for spinning assembly

Номер: US20180016708A1
Автор: Yunqi Zhang, Zutao YUAN
Принадлежит: ZHENGZHOU ZHONGYUAN SPANDEX ENGINEERING TECHNOLOGY CO LTD

The present invention provides an elastic fiber dry spinning mechanism and a maintenance control method for a spinning assembly. The elastic fiber dry spinning mechanism includes: a spinning assembly ( 1 ) including a temperature control portion ( 13 ) and a spinneret portion ( 14 ), which are detachably overlapped with each other; and a rotary movement control portion used for driving the spinning assembly to ascend and descend, translate and rotate around a translation direction so as to change the orientation of the spinning assembly into an orientation facilitating the maintenance of the spinneret portion. By adoption of the spinning mechanism and the maintenance control method therefore, online replacement and other maintenance of the spinneret portion are convenient and quick, and the efficiency is high.

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Номер записи: 26
22-01-2015 дата публикации

FIBER GRADE WITH IMPROVED SPINNING PERFORMANCE AND MECHANICAL PROPERTIES

Номер: US20150024650A1
Автор: Boelaers Guido, Broeders Bert, Fiebig Joachim, Van Paridon Henk
Принадлежит:

The present invention is directed to a new polypropylene composition, polypropylene fibres comprising said polypropylene composition, a spunbonded fabric comprising said polypropylene fibres and/or polypropylene composition, an article comprising said polypropylene fibres and/or said spunbonded fabric as well as to a process for the preparation of such spunbonded fabric and the use of such polypropylene composition for improving the stability of a fibre spinning line. 1. A polypropylene composition (PP-C) comprising:{'sub': 4', '10, 'a) at least 80 wt. %, based on the total weight of the polypropylene composition (PP-C), of a polypropylene (L-PP) homo- or copolymer having a melt flow rate according to ISO 1133 (230° C./2.16 kg) in the range of 0.1 g/10 min to 15 g/10 min and a comonomer content of up to 5 wt. %, the comonomers are selected from ethylene and/or C- to Cα-olefin, and'}{'sub': 4', '10, 'b) between 2 wt. % and 20 wt. %, based on the total weight of the polypropylene composition (PP-C), of a polypropylene (H-PP) homo- or copolymer having a melt flow rate according to ISO 1133 (230° C./2.16 kg) in the range of 200 g/10 min to 2,500 g/10 min and a comonomer content of up to 5 wt. %, the comonomers are selected from ethylene and/or C- to Cα-olefin,'}wherein the polypropylene composition (PP-C) has a melt flow rate according to ISO 1133 (230° C./2.16 kg) in the range of 10 g/10 min to 60 g/10 min and a polydispersity index (PI) of not more than 4.0.2. The polypropylene composition (PP-C) according to claim 1 , wherein the polypropylene (L-PP) has:a) a melt flow rate according to ISO 1133 (230° C./2.16 kg) in the range of 0.5 g/10 min to 15 g/10 min, and/orb) a melting temperature Tm measured according to ISO 11357-3 of at least 150° C., and/orc) a xylene cold soluble content (XCS) measured according to ISO 6427 (23° C.) of not more than 3.5 wt. %.3. The polypropylene composition (PP-C) according to claim 1 , wherein the polypropylene (H-PP) has:a) a melt flow ...

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Номер записи: 27
25-01-2018 дата публикации

IMPROVED POLYPROPYLENE FIBERS, METHODS FOR PRODUCING THE SAME AND USES THEREOF FOR THE PRODUCTION OF FIBER CEMENT PRODUCTS

Номер: US20180022644A1
Автор: DE LHONEUX Benoit, Moussaif Noureddin
Принадлежит:

The present invention relates to improved polypropylene fibers and methods for producing the same as well as uses of such polypropylene fibers for the production of fiber cement products. The present invention further relates to fiber cement products, such as flat or corrugated fiber cement sheets, comprising the polypropylene fibers of the present invention. The fiber cement products of the present invention have an improved impact resistance as compared to fiber cement products not containing the polypropylene fibers of the present invention. 1. A process for the production of at least one drawn polypropylene mono- or multifilament or at least one fiber derived therefrom for the reinforcement of cementitious products , said process comprising the steps of:(i) forming a melted polypropylene composition comprising at least one polypropylene,(ii) extruding the melted polymeric composition through a spinneret to form a filament of the polymeric composition,(iii) quenching the extruded polypropylene filament in a liquid bath having a temperature of between about 5° C. and about 50° C., wherein the distance between the surface of said liquid bath and the surface of said spinneret ranges between about 5 mm and about 200 mm, and(iv) drawing said filament at a temperature of between about 130° C. and 180° C. to form a drawn polypropylene filament, and optionally(v) cutting said filament into one or more fibers having a length between about 3 and about 50 mm.2. The process according to claim 1 , wherein said process is performed in the absence of a nucleating agent.3. The process according to claim 1 , wherein the resident time of said extruded polypropylene filament in said liquid bath is between about 1 seconds and about 5 seconds.4. The process according to claim 1 , wherein said liquid bath has a temperature between about 30° C. and about 50° C.5. The process according to claim 1 , wherein said distance between the surface of the liquid bath and the surface of the ...

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Номер записи: 28
25-01-2018 дата публикации

PROCESS AND PRODUCT OF HIGH STRENGTH UHMW PE FIBERS

Номер: US20180023218A9
Автор: ARNETT CHARLES R., TAM THOMAS Y., TWOMEY CONOR J., Young John A., Zhou Qiang
Принадлежит: HONEYWELL INTERNATIONAL INC.

An improved process for solution spinning of ultra-high molecular weight polyethylene (UHMW PE) filaments, wherein the 10 wt % solution of the UHMW PE in mineral oil at 250° C. has a Cogswell extensional viscosity and a shear viscosity within select ranges. 120-. (canceled)21. A solid ultra-high molecular weight polyethylene (UHMW PE) filament produced by a process comprising the steps of: {'br': None, 'sup': '0.8', 'λ≧5,917(IV);'}, 'a) selecting an UHMW PE having an intrinsic viscosity (IV) from about 5 dl/g to about 45 dl/g when measured in decalin at 135° C., wherein a 10 wt. % solution of the UHMW PE in mineral oil at 250° C. has a Cogswell extensional viscosity (λ) in accordance with the following formulab) dissolving the UHMW PE in a solvent at elevated temperature to form a solution having a concentration of from about 5 wt. % to about 50 wt. % of UHMW PE;c) discharging the solution through a spinneret to form solution filaments;d) cooling the solution filaments to form gel filaments;e) removing solvent from the gel filaments to form solid filaments containing less than about 5 wt. % of solvent;f) stretching at least one of the solution filaments, the gel filaments and the solid filaments to a combined stretch ratio of at least 10:1, wherein the solid filaments are stretched to a ratio of at least 2:1. stretch ratio of at least 10:1, wherein at least 2:1 is of the solid filaments.22. The solid ultra-high molecular weight polyethylene filament of claim 21 , wherein the 10 wt. % solution of the UHMW PE in mineral oil at a temperature of 250° C. has an Cogswell extensional viscosity at least 65 claim 21 ,000 Pa-s.23. The solid ultra-high molecular weight polyethylene filament of claim 21 , wherein the 10 wt. % solution of the UHMW PE in mineral oil at a temperature of 250° C. has a Cogswell extensional viscosity (λ) in accordance with the following formula:{'br': None, 'sup': '0.8', 'λ≧7,282(IV).'}24. The solid ultra-high molecular weight polyethylene filament ...

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Номер записи: 29
10-02-2022 дата публикации

A METHOD TO PROVIDE MULTIFILAMENT BUNDLES OF MELT SPUN POLYMER FILAMENTS

Номер: US20220042208A1
Автор: CASCIO Anthony
Принадлежит:

A method for providing a multifilament bundle of melt spun polymer filaments, the that includes providing a spinning device including at least M extruders for melting M polymers, M groups of spinning stations, each group comprising N spinning stations, each spinning station comprising and a spin pack coupled to a spin pump which receives molten polymer from one of the M extruders and spins a strand of filaments by pushing said polymer through the coupled spin pack, and N transformation stations for bundling M strands of filaments. The method further includes spinning N*M strands of filaments from the spinning stations at a given spin pump output and bundling the strands into N multifilament bundles via the N transformation stations whereby the spin pump outputs are varied over time. 2. The method according to claim 1 , wherein for each of the N transformation stations claim 1 , the sum of the spin pump outputs of the spin pumps is kept substantially constant over time.3. The method according to claim 1 , wherein M is 2 claim 1 , 3 or 4.4. The method according to claim 1 , wherein the M polymers are of a different color.5. The method according to claim 1 , wherein for each of the N transformation stations claim 1 , the sum of the spin pump outputs of the spin pumps providing multifilament strands to the transformation station varies over time in a range of 2.5% v around the average sum of the spin pump outputs of the spin pumps providing multifilament strands to this transformation station.6. The method according to claim 1 , wherein N is in the range of from 2 to 50 or from 2 to 25.7. The method according to claim 1 , wherein each of the spinning stations further quenches the strand of filaments.8. The method according to claim 1 , wherein each of the transformation stations further elongates the bundle of filaments.9. The method according to any one of the preceding claims claim 1 , wherein each of the transformation stations further texturizes the bundle of ...

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Номер записи: 30
02-02-2017 дата публикации

HIGH STRENGTH FABRICS CONSISITING OF THIN GAUGE CONSTANT COMPRESSION ELASTIC FIBERS

Номер: US20170029982A1
Автор: Bryson, FISCHER Daniel M., JR. James E., Lee Mouh-Wahng, Sprague Christopher A., Vedula Ravi R.
Принадлежит:

Elastic fibers are disclosed which have a relatively flat modulus curve at between 100% and 200% elongation. The fibers can be made into garments having a very comfortable feel. The preferred elastic fibers are made from thermoplastic polyurethane polymers and are made by a unique melt spinning process where the fiber is wound into bobbins at a speed just slightly higher than the melt velocity of the polymer exiting the spinneret. 1. A thin gauge , constant compression , high burst strength elastic fiber having an ultimate elongation of at least 400% and having a relativity flat modulus in the load and unload cycle between 100% and 200% elongation.2. The fiber of wherein a 40 denier monofilament fiber has a width of less than 100 microns.3. The fiber of claim 1 , wherein when said fiber having a denier of 70 is made into a fabric and said fabric is tested for puncture strength according to ASTM D751 said fabric has a load at failure of greater than 6 pounds.4. The fiber of claim 1 , wherein said fiber is a thermoplastic polyurethane fiber.5. The fiber of claim 4 , wherein said fiber is a polyester thermoplastic polyurethane.6. The fiber of claim 5 , wherein said fiber is crosslinked with a polyether crosslinking agent.7. The fiber of claim 5 , wherein said polyester thermoplastic polyurethane has a weight average molecular weight of from 200 claim 5 ,000 to 700 claim 5 ,000 Daltons.8. The fiber of claim 6 , wherein said crosslinking agent is from 5 to 20 weight percent of the combined weight of said polyester thermoplastic polyurethane and said crosslinking agent.9. The fiber of claim 8 , wherein said crosslinking agent is from 8 to 12 weight percent of the combined weight of said polyester thermoplastic polyurethane and said crosslinking agent.10. A fabric comprising at least two different fibers wherein at least one of said fibers is a thermoplastic polyurethane fiber and at least one of said fibers is a hard fiber claim 8 , and wherein said thermoplastic ...

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Номер записи: 31
02-02-2017 дата публикации

THREAD, AND ASSOCIATED EQUIPMENT PIECE OF A VEHICLE, FORMATION PROCESS TO MAKE A THREAD AND FABRICATION METHOD FOR MAKING A PIECE OF AUTOMOTIVE VEHICLE

Номер: US20170030012A1
Автор: BATHELIER Xavier, Jeunesse Steve, MARCEL Valérie
Принадлежит:

A thread intended to be woven. The thread includes a core made of a polymer, and a sheath covering the core. The sheath is formed of polyvinyl chloride (PVC). The thread individually presents, at 130° C., an elongation at maximal force, such as measured with the D411099 standard, greater than or equal to 20%. 1. A thread intended to be woven comprising:a core comprising a polymer, anda sheath covering the core, the sheath comprising polyvinyl chloride (PVC),wherein the thread individually has, at 130° C., an elongation at the maximum force, as measured according to standard D411099, greater than or equal to 20%.2. The thread according to claim 1 , wherein the polymer of the core has a softening point less than or equal to 130° C.3. The thread according claim 1 , wherein the core comprises at least one polymer selected from the group formed by polyethylene (PE) claim 1 , copolymer of polypropylene (coPP) claim 1 , polypropylene (PP) and polyethylene terephthalate (PET) and its copolymers (coPET).4. The thread according to claim 1 , wherein the polymer of the core has a crystallinity level greater than 1% and less than 30% claim 1 ,5. The thread according to claim 4 , wherein the core consists of partly stretched polyethylene terephthalate (PET).6. The thread according to claim 1 , wherein the sheath has a thickness of more than 0.15 mm.7. The thread according to claim 6 , wherein the sheath has a thickness comprised between 25% and 35% of the diameter of the thread.8. The thread according to claim 1 , wherein the core consists of a spun-bonded polymer with fibers or filaments claim 1 , the number of filaments being comprised between 2 and 100.9. A piece of equipment of an automobile vehicle comprising:a wall comprising a polymer-based matrix, and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a fabric, the fabric comprising an upper face intended to be oriented towards a passenger compartment of the vehicle and an opposite face attached on the wall, the fabric ...

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Номер записи: 32
17-02-2022 дата публикации

Rotational spun material covered medical appliances and methods of manufacture

Номер: US20220048285A1
Автор: Bart Dolmatch, John William Hall, Rachel Lynn Oberg, Robert J. RADFORD, Robert S. Kellar, Wayne MOWER, Zeke Eller
Принадлежит: Merit Medical Systems Inc

A medical appliance or prosthesis may comprise one or more layers of rotational spun nanofibers, including rotational spun polymers. The rotational spun material may comprise layers including layers of polytetrafluoroethylene (PTFE). Rotational spun nanofiber mats of certain porosities may permit tissue ingrowth into or attachment to the prosthesis. Additionally, one or more cuffs may be configured to allow tissue ingrowth to anchor the prosthesis.

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Номер записи: 33
31-01-2019 дата публикации

METHOD OF SPINNING FIBRES OR EXTRUSION, AND THE PRODUCTS OBTAINED

Номер: US20190032247A1
Автор: Fall Andreas, Håkansson Karl, Kvick Mathias, Lundell Fredrik, Söderberg Daniel, Wågberg Lars
Принадлежит:

The invention relates to a continuous, scalable and parallelizable method for preparing strong and stiff fibres (filaments) or films. The fibre or film is prepared by utilizing hydrodynamically induced alignment of the constituents of a dispersion in combination with surface-charge controlled gel transition to produce fibres with a high degree of alignment of the constituents (polymer(s), fibrils etc.). The invention also relates to the fibres or films so formed. 1. An oriented fibre or oriented sheet comprising long-chained polymer(s) or non-spherical particles , wherein the oriented fibre or oriented sheet was manufactured by a method of spinning fibres or extrusion comprising steps of:(a) Injection of a central flow dispersion comprising long-chained polymer(s) or non-spherical particles into a central flow channel of one or more reaction chambers;(b) Acceleration of the central flow in the one or more reaction chambers by at least two opposite, aligning flow streams, essentially perpendicular to the central flow, whereby the long-chained polymer(s) or non-spherical particles are aligned in the flow direction; and(c) Gelling of the aligned long-chained polymer(s) or non-spherical particles, through diffusion of salt, chelating agent or acid contained in the aligning flow streams, into the aligned long-chained polymer(s) or non-spherical particles, followed by coagulation of the gel string obtained, and/or(d) Polymerization of a polymerizable component contained in the central flow dispersion; and(e) Drying of the oriented fibre or oriented sheet obtained.2. The oriented fibre or oriented sheet according to claim 1 , wherein the central flow is constituted by multiple streams.3. The oriented fibre or oriented sheet according to claim 1 , wherein the one or more reaction chambers comprise at least two reaction chambers in parallel.4. The oriented fibre or oriented sheet according to claim 3 , wherein the number of reaction chambers in parallel is 3-30.5. The ...

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Номер записи: 34
05-02-2015 дата публикации

METHOD AND DEVICE FOR MANUFACTURING A PART MADE OF A THERMALLY INSULATING COMPOSITE MATERIAL AND SECTION COMPRISING SAME

Номер: US20150037095A1
Автор: Maugenet Michel
Принадлежит: INNOBAT

A method for manufacturing a profiled section made of a thermally insulating composite material. A thermoset matrix is injected into an injection box where continuous natural fiber rovings circulate. The continuous natural fiber rovings and a portion of the thermoset matrix are pultruded. The natural fiber volume ratio is between 50 and 70% and a natural fiber mass ratio is between 55 and 75%. During the injection step, the ratio of natural fibers can be adapted so that the composite material has a conductivity of less than 0.30. The continuous natural fiber rovings can be twisted before the steps of injecting and pultruding. Preferably, during the twisting step, a number of turns per meter of between 10 and 30 is transmitted to the continuous natural fiber rovings. 114-. (canceled)15. A part made of a thermally insulating composite material , comprising continuous natural fiber rovings , forming a reinforcement , and a thermoset matrix , the part being manufactured by pultrusion , wherein a natural fiber volume ratio is between 50 and 70% and a natural fiber mass ratio is between 55 and 75%.16. The part according to claim 15 , wherein the ratio of natural fibers is configured so that the composite material has a conductivity of less than 0.30.17. The part according to claim 16 , wherein each natural fiber roving has a Tex index of 1000 to 3000 claim 16 , equivalent to 1 to 3 g/m.18. The part according to claim 15 , wherein each natural fiber roving has a Tex index of 1000 to 3000 claim 15 , equivalent to 1 to 3 g/m.19. The part according to claim 15 , wherein the thermoset matrix is a polyurethane- claim 15 , epoxy- claim 15 , polyester- or vinylester-based matrix.20. A method for manufacturing a part made of a thermally insulating composite material claim 15 , comprising the steps of:injecting a thermoset matrix into an injection box where continuous natural fiber rovings circulate; andpultruding the continuous natural fiber rovings and a portion of the thermoset ...

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Номер записи: 35
08-02-2018 дата публикации

HIGH STRENGTH POLYAMIDE YARN

Номер: US20180038019A1
Автор: Chen Hao, KEULERS Martinus Joseph Maria, STEPANYAN Roman
Принадлежит:

The invention relates to a yarn comprising a copolyamide in an amount of at least 90 wt % with respect to the total weight of the yarn, which copolyamide comprises a) at least 95 wt % by weight with respect to the total weight of copolyamide, monomeric units derived from hexamethylene diamine and adipic acid and b1) cyclic monomeric units derived from a diamine X, and cyclic monomeric units derived from a diacid Y, and/or b2) cyclic monomeric units derived from an amino acid Z, in which the summed amount of monomeric units derived from X, Y and Z is between 0.1 to 4.5 wt % by weight with respect to the total weight of the copolyamide and wherein the yarn has a tensile strength of at least 80 cN/tex as measured according to ASTM D885-04. The invention also relates to a process for preparing the yarn. 1. Yarn comprising a copolyamide in an amount of at least 90 wt % with respect to the total weight of the yarn , which copolyamide comprisesa) at least 95 wt % by weight with respect to the total weight of copolyamide, monomeric units derived from hexamethylene diamine and adipic acid andb1) cyclic monomeric units derived from a diamine X, and cyclic monomeric units derived from a diacid Y, and/orb2) cyclic monomeric units derived from an amino acid Z,in which the summed amount of monomeric units derived from X, Y and Z is between 0.1 to 4.5 wt % by weight with respect to the total weight of the copolyamide and in which the yarn has a tensile strength of at least 80 cN/tex as measured according to ASTM D885-04.2. Yarn according to claim 1 , comprising at least 95 wt % of the copolyamide with respect to the total weight of the yarn.3. Yarn according to claim 1 , in which X and Y are present in essentially equal molar amounts.4. Yarn claim 1 , according to claim 1 , in which the yarn has a tensile strength of at least 85 cN/tex as measured according to ASTM D885-04.5. Yarn according to claim 1 , in which the summed amount of monomeric units derived from X claim 1 , Y and Z ...

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Номер записи: 36
24-02-2022 дата публикации

FIBRE PRODUCING MACHINE WITH IMPROVED MAINTENANCE

Номер: US20220055940A1
Автор: JANKOVSKY Jiri, Morin Philippe
Принадлежит:

A machine for fiberizing mineral wool by free centrifugation, includes a frame on which is mounted at least one centrifugation wheel, the centrifugation wheel being connected to a transmission shaft designed to rotate it by transmitting the movement of rotation of an output shaft of a drive unit, wherein the machine further includes at least one intermediary transmission box connected at least by one input to the drive rod and by one output to the transmission shaft, the intermediary transmission box being arranged such as to transmit the movement of rotation of the drive shaft to the transmission shaft. 1. A machine for fiberizing mineral wool by free centrifugation , comprising a frame on which is mounted at least one centrifugation wheel , said at least one centrifugation wheel being connected to a transmission shaft adapted to rotate the at least one centrifugation wheel by transmitting a movement of rotation of an output rod of a drive unit , wherein said machine further comprises at least one intermediary transmission box connected at least by one input to the output rod of the drive unit and by at least one output to the transmission shaft , said at least one intermediary transmission box being arranged such as to transmit the movement of rotation of the output rod of the drive unit to the transmission shaft.2. The fiberizing machine as claimed in claim 1 , comprising a plurality of centrifugation wheels claim 1 , each centrifugation wheel being connected to a transmission shaft and comprising an intermediary transmission box for each transmission shaft.3. The fiberizing machine as claimed in claim 2 , wherein each transmission box comprises a chassis in which a rod is mounted claim 2 , said rod comprising coupling means for coupling to the transmission shaft and to the drive.4. The fiberizing machine as claimed in claim 2 , wherein each transmission box comprises a chassis in which a first rod and a second rod are arranged and extend in parallel in the same ...

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Номер записи: 37
12-02-2015 дата публикации

Furan based polyamides

Номер: US20150044927A1
Автор: Bhuma Rajagopalan, Fredrik Nederberg, Justin W. Chan, Michael W. Cobb, Sharlene Renee Williams
Принадлежит: EI Du Pont de Nemours and Co

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

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Номер записи: 38
06-02-2020 дата публикации

FIBERS, WOVEN FABRICS INCLUDING THE FIBERS, AND METHODS OF MANUFACTURING THE SAME

Номер: US20200040490A1
Автор: JAIN Mohit Kumar
Принадлежит: INDO COUNT INDUSTRIES LTD.

Fibers, yarns, woven fabric including the yarns and fibers, and methods of manufacturing the same are disclosed. Fibers can include base material staple fibers and dissolvable or water-soluble fibers that are mixed together to define an ultra-homogenous yarn comprising base material and dissolvable material, which is provided in at least the warp direction to form a woven fabric having a 7-end, 8-end or 10-end sateen weave. A processing step provides for the removal of the dissolvable fibers to produce a yarn defining a plurality of pores that are uniformly distributed throughout the structure of the yarn. The woven fabric has a thread count between 450-1200. The woven fabric is thermally-insulative, breathable and moisture-wicking. 1. A process for making a breathable , moisture-wicking and thermal-insulating fabric , comprising:mixing cleaned cotton slivers comprising cleaned cotton fibers with cleaned water-soluble slivers comprising cleaned water-soluble fibers at a blow-room stage to produce one or more homogenously-blended slivers;drawing the homogenously-blended slivers on a draw frame to produce a twice-mixed ultra-homogenous sliver;spinning the twice-mixed ultra-homogenous sliver using low twist multipliers which produces a twice-mixed ultra-homogenous yarn with a bulkier surface;using the twice-mixed ultra-homogenous yarn in preparatory to make beam; andweaving the twice-mixed ultra-homogenous yarn into a greige fabric for better thermal comfort, the greige fabric comprising a 7-end, 8-end or 10-end sateen weave.2. The process of claim 1 , further comprising dissolving the water-soluble fiber to form a plurality of micro passageways in the yarn of the greige fabric claim 1 , the plurality of micro passageways extending from a plurality of locations at an outer surface of the twice-mixed ultra-homogenous yarn to a central core portion thereof.3. The process of claim 1 , wherein the fabric has a thread count from about 450 thread count to about 1200 thread ...

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Номер записи: 39
18-02-2021 дата публикации

Method to Produce Micro and Nanofibers with Controlled Diameter and Large Yield

Номер: US20210047758A1
Автор: Alhindi Momtaz, Clyne Alisa Morss, Cui Chunxiao, Han Li-Hsin, Han Lin, He Lanziye, Krystek Jeffrey, Micucci Victor, Ostrow Evan, Shafi Sabah, Wang Mingkun
Принадлежит:

In one embodiment, the present invention is a method for producing microfibers comprising the steps of: (a) providing a base material; (b) forming the base material in a ring; (c) gripping opposing ends of the ring; (d) flipping one of the opposing ends relative to the other of the opposing ends, forming an upper portion and a lower portion; (e) folding the upper portion onto the lower portion; (f) stretching the folded upper and lower portions; and (g) repeating steps (d)-(f) as desired. 1. A method for producing microfibers comprising the steps of:(a) providing a base material;(b) forming the base material in a ring;(c) gripping opposing ends of the ring;(d) flipping one of the opposing ends relative to the other of the opposing ends, forming an upper portion and a lower portion;(e) folding the upper portion onto the lower portion;(f) stretching the folded upper and lower portions; and(g) repeating steps (d)-(f) as desired.2. The method according to claim 1 , wherein steps (d)-(f) are performed sufficient times to form fibers with sub-micron diameter.3. The method according to claim 1 , wherein step (a) comprises providing a protein-based base material.4. The method according to claim 1 , wherein step (a) comprises providing a sheath around the base material.5. The method according to claim 4 , wherein the method further comprises the step of:(h) dissolving the sheath.6. The method according to claim 1 , wherein the method is performed manually.7. The method according to claim 1 , wherein the method is performed automatically.8. The method according to claim 7 , wherein the method comprises providing a machine claim 7 , wherein the machine performs steps (c)-(g).9. The method according to claim 8 , wherein step (f) comprises forcing the folded upper and lower portions onto a cone.10. The method according to claim 8 , wherein step (f) comprises placing the folded upper and lower portions around a frame and expanding the frame.11. The method according to claim 10 , ...

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Номер записи: 40
18-02-2016 дата публикации

PROCESS FOR LAYING FIBROUS WEBS FROM A CENTRIFUGAL SPINNING PROCESS

Номер: US20160047061A1
Автор: ARMANTROUT JACK EUGENE, CATLIN GLENN CREIGHTON, CROFT JAY J., DALY THOMAS PATRICK, HARDING THOMAS WILLIAM, Huang Tao, SAQUING CARL
Принадлежит: E I DU PONT DE NEMOURS AND COMPANY

A method for laying down a nanoweb of nanofibers from a centrifugal spinning process by a combination of an air flow field and a charging arrangement. Fibrous streams in the form of fibrils of molten polymer or polymer solution are discharged from a rotating member into an air flow field that is essentially parallel to the direction of discharge of fibrils at the point of discharge of the fibrils. The fibrous streams are attenuated and directed by means of the air flow field onto the surface of a collector to form a nanoweb. The fibrous streams are charged along all or at least a portion of their route from the point of discharge to the surface of the collector. 2. The method of in which the web has a uniformity index range 0.1 to 5 when measured on a sample size of 90 by 60 cm at 3000 by 2000 pixels.3. The method of wherein the attenuation of step (ii) is caused by the centrifugal force of ejection of fibrils from the point of discharge.4. The method of in which the nanofibers are directed to the collector by a shaping air flow that is essentially perpendicular to the collector surface.5. The method of in which the air flow field at step (iii) further comprises a flow of air into at least a portion of the collector surface where the flow of air is essentially perpendicular to the collector from a region between the body of the rotating member and the collector surface.6. The method of in which the air flow field at step (i) comprises air from a nozzle that has an opening that is located on a radius of the cup or disk claim 1 , and the air flow is directed at an angle to the radius of between 0 and 60 degrees and in a direction opposite to the direction of rotation of the disk.7. The method of in which the rotating member comprises a disk or cup and fibrils are discharged from the edge of the surface of said disc or cup or from orifices located in or on the surface or cup.8. The method of in which the spinning process further comprises the step of attenuating the ...

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Номер записи: 41
15-02-2018 дата публикации

METHOD AND DEVICE FOR PRODUCING INORGANIC AEROGEL FIBERS

Номер: US20180044187A1
Автор: Gries Thomas, Lüking Alexander, Pico Davide, Schulz Björn
Принадлежит:

A method for producing an inorganic silica gel fiber or aerogel fiber, comprising the following steps: a) extrusion of a gel, in particular a hydrogel or alcogel, by means of a spinneret directly into a coagulation bath to form at least one filament, b) stretching of the filament in the coagulation bath, c) regeneration of the filament by extraction from the coagulation bath, and d) supercritical drying or freeze drying in order to convert the filament into a silica fiber, in particular an aerogel fiber. 1. A method of producing an inorganic type of silica or aerogel fiber , comprising the steps of:extruding a gel through a spinnerette die as at least one filament directly into a coagulation bath,stretching the filament in the coagulation bath,regenerating the filament by extraction from the coagulation bath,supercritical drying or freeze drying to transform the filament into a silica fiber or an aerogel fiber.2. The method as claimed in claim 1 , further comprising moving the filament through the coagulation bath throughout the entire stretching step.3. The method as claimed in claim 1 , wherein the gel comprises a hydrogel or an alcogel claim 1 , which is later transformable into an aerogel.4. The method as claimed in claim 1 , wherein the silica fiber or the aerogel fiber is wound up as a package or processed into a fiber web or a shaped article.5. An apparatus for producing an inorganic type of silica or aerogel fiber claim 1 , comprising:a stock supply vessel configured to contain a gel,a spinnerette die configured to extrude at least one filament from the gel,a tub for configured as a coagulation bath,at least one stretching device configured to stretch the filament in the tub,an extraction device, anda drying device outside the tub.6. The apparatus as claimed in claim 5 , wherein a plurality of stretching stages and direction changes are disposed in the tub.7. The apparatus as claimed in claim 5 , wherein the drying device is designed for a supercritical ...

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Номер записи: 42
03-03-2022 дата публикации

COMPRESSIBLE ADJUNCT WITH CROSSING SPACER FIBERS

Номер: US20220061843A1
Автор: Akram Ismail, Consonni Sofia Maria, Easter Ashley D., Goldrein Howell T., Harris Jason L., IV Frederick E., Latham Helen S., Moir Robert S., Scheib Charles J., Shelton, Vendely Michael J.
Принадлежит:

A staple cartridge assembly for use with a surgical stapling instrument includes a staple cartridge including a plurality of staples and a cartridge deck. The staple cartridge assembly also includes a compressible adjunct positionable against the cartridge deck, wherein the staples are deployable into tissue captured against the compressible adjunct, and wherein the compressible adjunct comprises a first biocompatible layer comprising a first portion, a second biocompatible layer comprising a second portion, and crossed spacer fibers extending between the first portion and the second portion.

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Номер записи: 43
19-02-2015 дата публикации

DEVICE FOR MANUFACTURING POLYMER FIBERS AND USES THEREOF

Номер: US20150050711A1
Автор: Leong Meng Fatt, LIM Tze Chiun, Toh Jerry Kah Chin, Wan Andrew Chwee Aun, Ying Jackie Y.
Принадлежит:

There is provided a device, and related method and uses, for drawing a polymer fiber, the device comprising: a. at least two polymer compartments, wherein each polymer compartment is capable of retaining a polymer solution, and wherein adjacent compartments comprise different polymer solutions; and b. a slider comprising at least one prong, wherein the prong is capable of contacting the different polymer solutions, and wherein the slider is arranged in a retractable manner from the at least two polymer compartments. There is further provided a system and a related method for manufacturing a polymer fiber. 1. A device for drawing a polymer fiber , the device comprising:a. at least two polymer compartments, wherein each polymer compartment is capable of retaining a polymer solution, and wherein adjacent compartments comprise different polymer solutions when in use; andb. a slider comprising at least one prong for drawing the polymer fiber, wherein the prong is capable of contacting the different polymer solutions, and wherein the slider is arranged in a retractable manner from the at least two polymer compartments.2. The device of claim 1 , wherein the polymer solutions are capable of complex coacervation when contacted during use.3. The device of claim 1 , wherein the prong is capable of simultaneously contacting a polymer solution on one side of the prong and a different polymer solution on the other side of the prong.4. The device of claim 3 , wherein the prong being capable of simultaneous contact is selected from the group consisting of: (i) the prong being capable of contacting on one side of the prong claim 3 , a top edge of a polymer compartment claim 3 , and on the other side of the prong claim 3 , a top edge of the adjacent polymer compartment; and (ii) where the at least two polymer compartments are fluidly connected claim 3 , the prong being capable of being inserted at the interface of adjacent polymer compartments between a top edge and a bottom edge of ...

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Номер записи: 44
19-02-2015 дата публикации

Flame Retardant Composition, Fibers, Process of Preparation and Applications Thereof

Номер: US20150050858A1
Автор: Kerketta Anjlina, Kumar Sandeep, Nigam Vineeta, Saxena Arvind Kumar
Принадлежит:

The present disclosure provides a flame retardant composition as well as fibers comprising a matrix and an additive wherein each of the matrix and the additive is independently selected from Ultra High Molecular weight Polyethylene (UHMPE) and Polyphosphazene (PPZ) and wherein, when the matrix is UHMPE, the additive is PPZ and when the matrix is PPZ, the additive is UHMPE. Further the present disclosure provides a process of melt spinning the flame retardant composition of a matrix and an additive wherein each of the matrix and the additive is independently selected from UHMPE and PPZ and wherein, when the matrix is UHMPE, the additive is PPZ and when the matrix is PPZ, the additive is UHMPE to obtain flame retardant fibers. The flame retardant fibers of the present disclosure has various industrial and medicinal applications 2. The composition as claimed in claim 1 , wherein the Ultra High Molecular weight Polyethylene (UHMPE) is 91% (w/w); and Polyphosphazene is 9% (w/w).3. The composition as claimed in claim 1 , wherein the Polyphosphazene (PPZ) is 92% (w/w); and Ultra High Molecular weight Polyethylene (UHMPE) is 8% (w/w).4. The composition as claimed in claim 1 , wherein the Polyphosphazene is selected from the group consisting of saturated aliphatic claim 1 , unsaturated aliphatic claim 1 , Cto Caryloxy derivatives claim 1 , and fluoroalkoxy derivatives or mixtures thereof.5. The composition as claimed in claim 1 , wherein the composition is formulated in a form selected from the group consisting of extrudates claim 1 , films claim 1 , membranes claim 1 , laminates claim 1 , woven fabrics claim 1 , fibers claim 1 , filaments claim 1 , yarns claim 1 , pellets claim 1 , coatings and foam.7. The composition as claimed in claim 5 , wherein the fibers have a physical shape selected from the group consisting of round claim 5 , circular fiber having uniform diameter claim 5 , trilobal claim 5 , hollow claim 5 , flat oval claim 5 , oval to round claim 5 , triangular ( ...

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Номер записи: 45
03-03-2022 дата публикации

STAIN RESISTANT POLYAMIDE POLYMERS OBTAINED VIA HIGH END GROUP TERMINATION

Номер: US20220064376A1
Автор: Bauer Timothy, LIU Haoyu, Loy David J.
Принадлежит:

The present disclosure provides fibers and filaments formed from polyamide polymers polymerized with dual termination of the amino and carboxyl end-groups, referred to herein as dual-terminated polyamides, or dual terminated PA. In one embodiment, the dual-terminated polyamide is considered “highly terminated” and is useful in producing stain resistant textiles such as carpet fibers, for example.

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Номер записи: 46
03-03-2022 дата публикации

Method for production of poly-vinyl alcohol -filament fibre of high strength and elasticity

Номер: US20220064822A1
Автор: Mehmet Kivanç ALAY, Mustafa SOYLU
Принадлежит: Veritas Tekstil Konfeksiyon Pazariama Sanayi Ve Ticaret AS, Veritas Tekstil Konfeksiyon Pazarlama Sanayi ve Ticaret AS

A filament fibre production method including the process steps of: filtration of and/or applying evaporation process to wastewater containing Polyvinyl alcohol polymer from sizing process and/or painting process in a manner to contain Polyvinyl alcohol polymer at rate of 20-30% by mass, adding Carbonyl di-imidazole and Ethylenediamine or 4-chloro-Propionyl chloride and Etylendiamine into wastewater having Polyvinyl alcohol polymer in 20-30% rate as a result of filtration and/or evaporation process and obtaining PVA-Etylendiamine hydrogel solvent, adding dimethyl sulfoxide, Boric Acid, Acetic Acid and surface active agent into solvent bath containing PVA-Ethylendiamine hydrogel solvent at 20-30% rate, applying coagulation process to obtained PVA-Ethylendiamine hydrogel solvent with acetone of critic fluid phase, stretching Polyvinyl alcohol polymer passing through coagulation bath at 200 C.°-250 C.° temperature range when wet, and subjecting to fixing process.

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Номер записи: 47
25-02-2021 дата публикации

THERMAL-MOISTURE COMFORTABLE POLYESTER FDY FOR SUMMER USE AND PREPARING METHOD THEREOF

Номер: US20210054534A1
Автор: FAN Hongwei, Wang Lili, WANG Shanshui, YIN Lixin
Принадлежит: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

A thermal-moisture comfortable polyester FDY for summer use and a preparation method thereof are provided. The FDY is made of matting agents dispersed polyester via the steps of spinning melt metering, extruding via the compositional spinneret, cooling, oiling, drawing, heat setting and winding. The woven fabrics manufactured with the FDY possess a wicking height and an evaporation rate of larger than or equal to 135 mm and 0.22 g/h, respectively. The compositional spinneret is simultaneously provided with cruciform orifices and circular orifices, and the length ratio of cruciform orifice to circular orifice is equal to the product of their equivalent diameter ratio and a coefficient K, here equivalent diameter is the ratio of orifice cross-section area to its circumference and K ranges from 0.97 to 1.03, and the oiling involves the oiling agent containing 67.30-85.58 wt % of crown ether. 1. A thermal-moisture comfortable polyester FDY for summer use comprising a cruciform monofilament and a circular monofilament , wherein the cruciform monofilament and the circular monofilament are extruded from a spinneret , the thermal-moisture comfortable polyester FDY for summer use is made of a polyester , and a matting agent is dispersed in the polyester;wherein the matting agent is a mixture of amorphous titanium dioxide and amorphous silicon dioxide, or a mixture of calcium carbonate and amorphous silicon dioxide;a wicking height of woven fabrics made of the thermal-moisture comfortable polyester FDY for summer use is greater than or equal to 135 mm, and an evaporation rate of the woven fabrics made of the thermal-moisture comfortable polyester FDY for summer use is greater than or equal to 0.22 g/h.2. The thermal-moisture comfortable polyester FDY for summer use of claim 1 , wherein the cruciform monofilament has a fineness of 0.5-0.7 dtex and the circular monofilament has a fineness of 0.20-0.30 dtex.3. The thermal-moisture comfortable polyester FDY for summer use of ...

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Номер записи: 48
23-02-2017 дата публикации

ARTIFICIAL TURF PRODUCTION USING A NUCLEATING AGENT

Номер: US20170051453A1
Автор: Jansen Bernd, SANDER Dirk, SCHMITZ Dirk, SICK Stephan, Tritt James M.
Принадлежит:

A method of manufacturing artificial turf includes the steps of: creating a polymer mixture including at least one polymer and a nucleating agent for crystallizing the at least one polymer, extruding the polymer mixture into a monofilament; quenching the monofilament; reheating the monofilament; stretching the reheated monofilament to form the monofilament into an artificial turf fiber, wherein during the stretching the nucleating agent boosts the creation of crystalline portions of the polymer within the monofilament; incorporating the artificial turf fiber into an artificial turf backing, thereby mechanically fixing the monofilaments of the arranged artificial turf fibers in the artificial turf backing. 1. A method of manufacturing artificial turf that is durable to mechanical stress , in particular in respect to mechanical pulling forces exerted on artificial turf fibers , the method comprising the steps of:creating a polymer mixture comprising at least one polymer and a nucleating agent for crystallizing the at least one polymer, the nucleating agent being an inorganic and/or an organic substance or a mixture thereof,wherein the inorganic substance acting as the nucleating agent consists of one or more of: talcum; kaolin; calcium carbonate; magnesium carbonate; silicate; silicic acid; silicic acid ester; aluminium trihydrate; magnesium hydroxide; meta- and/or polyphosphates; and coal fly ash;wherein the organic substance acting as the nucleating agent consists of one or more of: 1,2-cyclohexane dicarbonic acid salt; benzoic acid; benzoic acid salt; sorbic acid; and sorbic acid salt; extruding the polymer mixture into a monofilament;', 'quenching the monofilament;', 'reheating the monofilament;', 'stretching the reheated monofilament to form the monofilament into an artificial turf fiber, wherein during the stretching the nucleating agent boosts the creation of crystalline portions of the at least one polymer within the monofilament, wherein the boosting of the ...

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Номер записи: 49
01-03-2018 дата публикации

METHODS, SYSTEMS, AND APPARATUSES FOR MANUFACTURING ROTATIONAL SPUN APPLIANCES

Номер: US20180056568A1
Автор: Boyd Randal, Ferguson F. Mark, Hall John William, Neyme Dylan
Принадлежит:

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 ...

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Номер записи: 50
05-03-2015 дата публикации

SUPERFINE FIBER CREATING SPINNERET AND USES THEREOF

Номер: US20150061180A1
Автор: Lozano Karen, Sarkar Kamalaksha
Принадлежит: The Board of Regents of the University of Texas System

Apparatuses and methods for the production of superfine fibers. 129-. (canceled)30. A method of creating fibers comprising:placing a composition into a spinneret comprising one or more openings, wherein the composition comprises a cellulose ester and a solvent capable of dissolving at least a portion of the cellulose ester; androtating the spinneret about a spin axis such that rotation of the spinneret causes at least a portion of the material disposed in the spinneret to be ejected through the one or more of the openings and form the fibers as the ejected material solidifies.31. The method of claim 30 , wherein the spinneret comprises a body defining a central reservoir claim 30 , which receives the composition claim 30 , and one or more channels extending from the central reservoir to the one or more openings.32. The method of claim 31 , wherein one or more of the channels have a diameter that is greater than the diameter of the openings.33. The method of claim 31 , wherein the reservoir is a substantially circular reservoir and wherein the channels extend radially from the circular reservoir to the openings.34. The method of claim 30 , further comprising: heating the composition to a temperature greater than room temperature.35. The method of claim 34 , further comprising heating the spinneret to a temperature at or near the temperature of the composition.36. The method of claim 30 , wherein the openings have a size that promotes the formation of microfibers.37. The method of claim 30 , wherein the openings have a size that promotes the formation of nanofibers.38. The method of claim 30 , further comprising collecting the fibers on a collection device that at least partially surrounds the spinneret while the spinneret is being rotated.39. The method of claim 30 , further comprising heating the spinneret with a heater thermally coupled to the spinneret.40. The method of claim 30 , further comprising surrounding the spinneret in a housing claim 30 , wherein the ...

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Номер записи: 51
21-02-2019 дата публикации

PROCESS FOR FORMING SYNTHETIC FIBER AND FIBER, YARNS AND CARPETS PRODUCED THEREBY

Номер: US20190055671A1
Автор: Rao Sundar Mohan
Принадлежит:

Processes for forming synthetic fibers from polymer melts containing a first fiber forming polymer, a spin assist additive, and optionally a pigment additive are provided. Also provided are synthetic fibers of a first fiber forming polymer, a spin assist additive, and optionally a pigment additive, as well as articles of manufacture such as yarns, carpets and fabrics made up of these synthetic fibers. 1. A process for forming a synthetic fiber , said process comprising the steps of:(a) producing a polymer melt comprising a first fiber forming polymer and a spin assist additive, wherein the spin assist additive is present in a range from about 0.5 to about 5 percent by weight; and(b) forming a synthetic fiber from the polymer melt.2. The process of claim 1 , wherein the spin assist additive is a polyamide comprising at least one aliphatic diamine and at least two distinct aromatic dicarboxylic acids claim 1 , and copolymers and blends thereof.3. The process of claim 2 , wherein the at least one aliphatic diamine is selected from a group consisting of 2-methyl-1 claim 2 ,5-pentamethylene diamine claim 2 , hexamethylene diamine claim 2 , 2-methyl hexamethylene diamine claim 2 , 3-methyl hexamethylene diamine claim 2 , 2 claim 2 ,5-dimethyl hexamethylene diamine claim 2 , 2 claim 2 ,2-dimethylpentamethylene diamine claim 2 , 5-methylnonane diamine claim 2 , dodecamethylene diamine claim 2 , 2 claim 2 ,2 claim 2 ,4- and 2 claim 2 ,4 claim 2 ,4-trimethyl hexamethylene diamine claim 2 , 2 claim 2 ,2 claim 2 ,7 claim 2 ,7-tetramethyl octamethylene diamine and diaminodicyclohexyl methane.4. The process of claim 2 , wherein the aromatic dicarboxylic acids are selected from a group consisting of terephthalic acid claim 2 , isophthalic acid and naphthalene dicarboxylic acid.5. The process of claim 2 , wherein the spin assist additive is selected from the group consisting of nylon DT/DI claim 2 , nylon DT/6I claim 2 , nylon DI/6T and nylon 6T/6I claim 2 , and copolymers and ...

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Номер записи: 52
02-03-2017 дата публикации

Method for preparing highly cut-resistant ultrahigh molecular weight polyethylene (uhmwpe) fiber and use thereof

Номер: US20170058431A1
Автор: Qingqing Chen, Qingren Zhu, Wendong Shen
Принадлежит: Jiangsu Jonnyma New Materials Co ltd

The present invention discloses a highly cut-resistant ultrahigh molecular weight polyethylene fiber, made of a ultrahigh molecular weight polyethylene and an inorganic ultrafine micropowder having a nanocrystalline structural morphology, wherein the inorganic ultrafine micropowder is one of an oxide, carbide, and nitride of aluminium, titanium, silicon, boron, and zirconium, or a combination thereof, and has an average diameter of 0.1-300 μm and a content of 0.1-14% of the total weight of the fiber. The present invention further discloses a method for preparing a highly cut-resistant ultrahigh molecular weight polyethylene fiber, comprising: adding nanocrystalline silicon carbide particles to a solvent, and repeatedly grinding by a sand mill; adding a ultrahigh molecular weight polyethylene, and the silicon carbide nanoparticles to a solvent, and mixing until uniform by stirring by a homogenizer with high shear, to obtain a spinning solution; and subjecting the spinning solution to conventional gelation spinning, and extracting and hot drawing the gel filament spun, to obtain a composite fiber. In the present invention, by introducing the nanocrystalline ultrafine particles into the ultrahigh molecular weight polyethylene fiber, the composite fiber of ultrahigh molecular weight polyethylene/nanocrystalline ultrafine particles has a quite excellent cut-resistant performance.

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Номер записи: 53
02-03-2017 дата публикации

FIBERS AND OTHER CONSTRUCTS TREATED WITH DIATOMITE PARTICLES

Номер: US20170058451A1
Автор: Gladish Justin Lee, Smith Mary-Ellen
Принадлежит: THE NORTH FACE APPAREL CORP.

Constructs consisting of diatomized fibers, filaments, yarns, woven and non-woven textiles, fiber-based films, mats, and membranes, other constructs and finished products made from the foregoing. The inventive subject matter is particularly directed to apparel products and molded footwear outsoles, and other molded or textile-based products, wherein a plurality of diatomite particles embedded in the surface of a construct impart desired functionalities, such as moisture management, odor control, or traction or grip enhancement, water and dirt repellency, and wear resistance. 1. A diatomized construct , comprising a fiber , filament or yarn having a plurality of diatomite particles embedded in the surface of the construct generally uniformly over a selected portion of the surface area of the construct.2. The diatomized construct claim 1 , of wherein the particles generally uniformly cover about 1-10% of the construct surface.3. The construct of wherein the particles generally uniformly cover 10-30% or thereabout of the construct surface.4. The construct of wherein the particles generally uniformly cover about 30% or more of the construct surface.5. The construct of wherein the construct comprises a thermoplastic material.6. (canceled)7. The construct of wherein the diatomite particles are present at 0.1% to 5% by fiber weight or thereabout in a thermoplastic material forming the construct.8. (canceled)9. The construct of wherein the particles have an average size of less than 5 μm or thereabout.10. The construct of wherein the particles have an average size of more than 200 μm or thereabout.11. The construct of further comprising a plurality of the diatomized fibers claim 1 , filaments claim 1 , and/or yarns arranged in a lattice structure.12. The textile of wherein the lattice comprises a woven or knit structure.1314.-. (canceled)15. The diatomized construct of wherein the structure comprises a first layer and further comprising a second adjacent knit or woven layer ...

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Номер записи: 54
28-02-2019 дата публикации

MODIFICATION OF CONTINUOUS CARBON FIBERS DURING PRECURSOR FORMATION FOR COMPOSITES HAVING ENHANCED MOLDABILITY

Номер: US20190062955A1
Автор: Kia Hamid G., Zhao Selina X.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Methods of producing a continuous carbon fiber for use in composites having enhanced moldability are provided. A continuous precursor fiber is formed that has a sheath and a core. The sheath includes a first polymer material. The core includes a second polymer material and a plurality of discrete regions distributed within the second polymer material. The discrete regions include a third polymer material. After the continuous precursor fiber is heated for carbonization and graphitization, the continuous precursor fiber forms a continuous carbon fiber having a plurality of discrete weak regions corresponding to the plurality of discrete regions in the core. Carbon fiber composites made from such modified continuous carbon fibers having enhanced moldability are also provided. 1. A method of producing a continuous carbon fiber for use in composites having enhanced moldability , the method comprising:forming a continuous precursor fiber comprising a sheath and a core, wherein the sheath comprises a first polymer material and the core comprises a second polymer material and a plurality of discrete regions distributed within the second polymer material, wherein the plurality of discrete regions comprises a third polymer material, wherein after the continuous precursor fiber is heated for carbonization and graphitization, the continuous precursor fiber forms a continuous carbon fiber having a plurality of discrete weak regions corresponding to the plurality of discrete regions in the core, wherein the continuous carbon fiber remains substantially intact until a molding process to form a carbon fiber composite.2. The method of claim 1 , wherein the forming comprises extruding a first polymer material in a first extruder to form the sheath and co-extruding the second polymer material and the third polymer material in a second extruder to form the core having a plurality of discrete regions of the third polymer material distributed within the second polymer material.3. The ...

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Номер записи: 55
27-02-2020 дата публикации

METHOD OF MANUFACTURING HIGH-STRENGTH SYNTHETIC FIBER UTILIZING HIGH- TEMPERATURE MULTI-SECTIONAL DRAWING

Номер: US20200063290A1
Автор: Shi Feng, YIN Shi
Принадлежит:

A method of manufacturing a high-strength synthetic fiber utilizing high-temperature multi-sectional drawing, two-stage high-temperature multi-sectional drawing, or multi-stage high-temperature multi-sectional drawing. The method comprises the following steps: performing, on a synthetic resin, melt spinning or melt extrusion, cooling, multi-sectional high-temperature drawing, heat setting and a fiber surface treatment, wherein the multi-sectional high-temperature drawing comprises independently adjusting temperatures at a front section and a rear section of an furnace, and the temperature at the rear section is higher than that at the front section. The temperature adjustment is performed on different locations in the furnace and according to a crystallization orientation of a fiber molecular chain, significantly increasing fiber strength. The method is widely applicable to manufacturing of various types of fibers, enhancing application performance of the fibers. 1. A method for preparing high strength synthetic fibers by high temperature segmented drawing processes , comprising the following steps: melt spinning or melt extrusion of synthetic resins , cooling , high temperature segmented drawing and heat setting; wherein in the high temperature segmented drawing , the temperature of a front part and a latter part of an oven is independently controlled , where the temperature of the latter part is higher than that of the front part.2. The method as claimed in claim 1 , wherein the heating temperature of the front part in the oven is 30 to 200° C. claim 1 , and that of the latter part is 50 to 300° C.3. The method as claimed in claim 1 , wherein the drawing ratio is 1 to 50 times.4. A method for preparing high strength synthetic fibers by two-stage high temperature segmented drawing processes claim 1 , comprising the following steps: melt spinning or melt extrusion of synthetic resins claim 1 , cooling claim 1 , high temperature segmented drawing and heat setting; ...

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Номер записи: 56
09-03-2017 дата публикации

MELT BLOWING DIE, APPARATUS AND METHOD

Номер: US20170067184A1
Автор: ALLEN Martin Anthony
Принадлежит:

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 ...

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Номер записи: 57
09-03-2017 дата публикации

MODIFICATION OF CONTINUOUS CARBON FIBERS DURING PRECURSOR FORMATION FOR COMPOSITES HAVING ENHANCED MOLDABILITY

Номер: US20170067185A1
Автор: Kia Hamid G.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Methods of producing continuous carbon fibers for composites having enhanced moldability are provided. Discrete regions are introduced into a continuous precursor fiber comprising an acrylic polymer material, such as polyacrylonitrile (PAN), as the precursor fiber is formed. The precursors may be heterogeneous fibers having a second distinct material interspersed in discrete regions with the acrylic polymer material. Alternatively, the precursors may be heterogeneous fibers where laser is applied to the acrylic polymer material in discrete regions to cause localized molecular disruptions. After the continuous precursor fiber is heated for carbonization and/or graphitization, the precursor forms a continuous carbon fiber having a plurality of discrete weak regions. These relatively weak regions provide noncontiguous break points that reduce stiffness and improve moldability for carbon fiber polymeric composites, while retaining high strength levels. Carbon fiber polymeric composites incorporating continuous carbon fibers having the plurality of discrete noncontiguous weak regions are also provided. 1. A method of producing a continuous carbon fiber for use in composites having enhanced moldability , the method comprising:incorporating a plurality of discrete regions into a continuous precursor fiber comprising a polymer material, wherein after the continuous precursor fiber is heated for carbonization and graphitization, the continuous precursor fiber forms a continuous carbon fiber having a plurality of discrete weak regions corresponding to the plurality of discrete regions.2. The method of claim 1 , wherein the polymer material is an acrylic polymer material and the incorporating of the plurality of discrete weak regions further comprises forming a stream of an acrylic polymer material and intermittently introducing a second distinct polymeric material into the stream to form a heterogeneous precursor fiber claim 1 , wherein the plurality of discrete regions forms ...

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Номер записи: 58
12-03-2015 дата публикации

Polyhydroxyalkanoate Medical Textiles and Fibers

Номер: US20150073444A1
Автор: Ajay Ahuja, David P. Martin, Said Rizk, Simon F. Williams
Принадлежит: Tepha Inc

Absorbable polyester fibers, braids, and surgical meshes with prolonged strength retention have been developed. These devices are preferably derived from biocompatible copolymers or homopolymers of 4-hydroxybutyrate. These devices provide a wider range of in vivo strength retention properties than are currently available, and could offer additional benefits such as anti-adhesion properties, reduced risks of infection or other post-operative problems resulting from absorption and eventual elimination of the device, and competitive cost. The devices may also be particularly suitable for use in pediatric populations where their absorption should not hinder growth, and provide in all patient populations wound healing with long-term mechanical stability. The devices may additionally be combined with autologous, allogenic and/or xenogenic tissues to provide implants with improved mechanical, biological and handling properties.

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Номер записи: 59
16-03-2017 дата публикации

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

Номер: US20170072611A1
Автор: KALIES Stefan, Kaulitzki Marco, Stündl Mathias, Westphal Jan
Принадлежит:

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 ...

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Номер записи: 60
24-03-2022 дата публикации

FOCUSED ROTARY JET SPINNING DEVICES AND METHODS OF USE THEREOF

Номер: US20220090300A1
Автор: Chang Huibin, Liu Qihan, Parker Kevin Kit
Принадлежит:

Systems and methods for focused direction deposition of a micron or nanometer dimension polymeric fiber and materials of such fibers are described herein. Systems and methods employ one or more gas flows to entrain and deflect fibers produced by a rotary jet spinning system forming a focused fiber stream. Some embodiments enable control of alignment and distribution of the fibers with a relatively high fiber throughput. 1. A system for focused directional deposition of one or more micron or nanometer dimension polymeric fibers , the system comprising:{'claim-text': ['a first end;', 'a second end opposite the first end;', 'an outer sidewall extending from the first end to the second end, a shape of the reservoir including one or more apertures disposed radially inward from the outer sidewall of the reservoir that are configured to enable a gas to move through the reservoir from the first end to the second end; and', 'one or more orifices formed in the outer sidewall, each of the one or more orifices configured for ejection of the material radially outward through the orifice as an ejected jet during rotation of the reservoir; and'], '#text': 'a reservoir configured to hold a material including a polymer and rotatable about a rotation axis, the reservoir including:'}one or more gas flow sources, each configured to direct a flow of gas from upstream of the first end of the reservoir through the one or more apertures of the reservoir from the first end to the second end of the reservoir and downstream of the second end of the reservoir during rotation of the reservoir the one or more gas flow sources collectively forming a combined gas flow in a first direction downstream of the second end of the reservoir that entrains and deflects the one or more ejected jets to form a focused stream of the one or more micron or nanometer dimension polymeric fibers in a first direction, the first direction having an orientation that is within 5 degrees of the rotation axis of the ...

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Номер записи: 61
24-03-2022 дата публикации

ANTI-COUNTERFEITING COMPOSITION FOR ANTI-COUNTERFEITING CHEMICAL FIBER AND PREPARATION METHOD AND USE THEREOF

Номер: US20220090301A1
Автор: Liu Lingyun, LIU YUQING, Pan Zhijuan, WANG Guohe, Xu Chuanqi
Принадлежит:

Provided is an anti-counterfeiting composition for anti-counterfeiting fibers, including a carrier, an anti-counterfeiting tracer and a dispersant, wherein the anti-counterfeiting tracer is composed of barium oxide, strontium oxide, aluminum oxide and zinc oxide, and a barium element content, a strontium element content, an aluminum element content, and a zinc element content in the anti-counterfeiting composition is controlled to a fixed feeding mass ratio; in percent by mass, the sum of the barium element content, strontium element content, aluminum element content, and zinc content accounts for 5-50% of the anti-counterfeiting composition; the carrier is a matrix polymer or a bio-derived oil. The anti-counterfeiting composition of the present disclosure can give the anti-counterfeiting fiber advantages of memory tracking properties and identification functions, high anti-counterfeiting capability, and good anti-counterfeiting concealment. 1. An anti-counterfeiting composition for anti-counterfeiting fibers , comprising;a carrier;an anti-counterfeiting tracer; and{'claim-text': 'wherein the anti-counterfeiting tracer is composed of barium oxide, strontium oxide, aluminum oxide and zinc oxide, and a barium element, a strontium element, a aluminum element, and a zinc element in the anti-counterfeiting composition is controlled to a fixed feeding mass ratio;', '#text': 'a dispersant;'}wherein, in percent by mass, a sum of the barium element, the strontium element, the aluminum element, and the zinc element accounts for 5-50% of the anti-counterfeiting composition;the carrier is a matrix polymer or a bio-derived oil.2. The anti-counterfeiting composition according to claim 1 , wherein the matrix polymer is selected from polyethylene glycol terephthalate claim 1 , polylactic acid claim 1 , polycaprolactone claim 1 , regenerated PET claim 1 , polybutylene succinate claim 1 , poly (3-hydroxybutyrate-co-3-hydroxyvalerate) claim 1 , poly(butylene adipate-co-terephthalate) ...

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Номер записи: 62
05-03-2020 дата публикации

TUFTED CARPET INCLUDING POLYETHYLENETEREPHTHALATE BULKED CONTINUOUS FILAMENT

Номер: US20200071853A1
Автор: KWON Yong Chul, OH Seung Taek
Принадлежит:

A monofilament of a polyethylene terephthalate bulked continuous filament (BCF) has elongation of 5% or more at an initial stress of 1.0 g/d, elongation of 25 to 35% at a medium-term stress of 3.0 g/d, tensile strength of .0 to 6.0g/d, and elongation of 40 to 60%. 1. A tufted carpet for automobiles , the turfed carpet comprising:a pile layer including a polyethylene terephthalate bulked processing continuous filament (BCF) prepared by melt spinning a polyethylene terephthalate (PET) polymer; andat least one backing layer,wherein a monofilament of the BCF has elongation of 5% or more at an initial stress of 1.0 g/d, elongation of 25 to 35% at a medium-term stress of 3.0 g/d, tensile strength of 0.0 to 6.0 g/d, and elongation of 40 to 60%.2. The tufted carpet of claim 1 , wherein a content of a low molecular substance of 3 to 7 oligomers claim 1 , which has not formed a polymer in the polyethylene terephthalate polymer claim 1 , is 1.0 wt % or less claim 1 , and a content of the low molecular substance in the filament is 1.3 wt % or less.3. The tufted carpet of claim 1 , wherein the polyethylene terephthalate polymer has a weight average molecular weight of 50 claim 1 ,000 to 70 claim 1 ,000.4. The tufted carpet of claim 1 , wherein the continuous filament is formed of multifilaments of 50 to 300 aggregates of monofilaments.5. The tufted carpet of claim 1 , wherein a total fineness of the bulked processing continuous filament is 700 to 1500 denier.6. The tufted carpet of claim 1 , wherein a wear resistance level according to MS343-15 standard is grade 3 or more. The present invention relates to a polyethylene terephthalate bulked continuous filament suitable for use as an automotive carpet and a carpet including the same.Generally, nylon 6, nylon 66, polypropylene, polyethylene terephthalate, and the like are used as a synthetic material of a bulked continuous filament (BCF) as a material for a tufted carpet. Among them, nylon is the most suitable material for carpet, ...

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Номер записи: 63
12-06-2014 дата публикации

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

Номер: US20140159262A1
Автор: Lenard Castellano, Stephen Kay, Yogesh NER
Принадлежит: Fiberio Technology Corp

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.

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Номер записи: 64
12-06-2014 дата публикации

PORTABLE APPARATUSES AND METHODS FOR THE PRODUCTION OF MICROFIBERS AND NANOFIBERS

Номер: US20140159263A1
Автор: Lozano Karen, Ortega Javier, Padron Simon
Принадлежит:

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. 1. A hand held/portable device for the production of microfibers and/or nanofibers comprising:one or more motors,a fan coupled to at least one of the one or more motors;a spinneret comprising a body and one or more openings, the spinneret being coupled to at least one of the one or more motors, wherein the fan and spinneret are, during use, rotated substantially simultaneously;wherein, during use, rotation of the spinneret causes material placed in the body of the spinneret to be ejected through one or more of the openings to produce fibers, andwherein the fan is positioned with respect to the spinneret such that the fibers produced by the spinneret are blow away from the spinneret by the gas flow produced by the rotating fan.20. The device of claim , further comprising a material reservoir coupled to the body of the spinneret , wherein material disposed in the material reservoir is transferred to the spinneret body during use.30. The device of claim , wherein the motor , fan and spinneret are placed in a molded housing.40. The device of claim , wherein the molded housing comprises a handle.50. The device of claim , wherein the molded housing comprises a tapered outlet , wherein fibers produced by the spinneret are blow away from the spinneret into the tapered outlet.60. The device of claim , wherein the fan , the motor , and the spinneret are aligned along an axial axis of the molded housing.7. The device of claim 1 , wherein the fan and spinneret are positioned on opposing sides of the one or more motors.80. The device of claim claim 1 , comprising a first motor coupled to the fan and a second motor coupled to the spinneret.90. The device of claim claim 1 , wherein the first motor rotates the fan at a different ...

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Номер записи: 65
24-03-2016 дата публикации

Apparatuses having outlet elements and methods for the production of microfibers and nanofibers

Номер: US20160083867A1
Автор: Ed Peno, Roger Lipton
Принадлежит: Fiberio Technology Corp

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

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Номер записи: 66
12-06-2014 дата публикации

METHOD FOR PRODUCING A SPINNABLE SILICA SOL MATERIAL

Номер: US20140161707A1
Автор: Barth Ekkehard, Mahr Bastian
Принадлежит:

In a process for producing a spinnable silica sol material, a viscosity value Vis stipulated which the spinnable silica sol material should have after ripening. A viscosity value Vcorresponding to Vwhich the silica sol material has before ripening is ascertained. An aqueous acid solution and a hydrolysable silicon compound are combined. The combined mixture is evaporated to give a single-phase solution while measuring the viscosity of the mixture and the evaporation process is terminated upon reaching the viscosity value V. The single-phase solution thus obtained is then ripened to give a silica sol material with the viscosity value V. The process exhibits reduced waste and more exact reproducibility of the spinning sol properties during the synthesis and an increased space-time yield in the production of biologically degradable and/or resorbable fibres and nonwoven fabrics. 1. A process for producing a spinnable silica sol material which comprises:{'sub': 'S', '(a) stipulating a viscosity value Vwhich the spinnable silica sol material should have after ripening,'}{'sub': R', 'S, '(b) ascertaining a viscosity value Ycorresponding to Vwhich the silica sol material has before ripening,'}(c) combining an aqueous acid solution and a hydrolysable silicon compound,{'sub': 'R', '(d) evaporating a mixture combined in (c) to give a single-phase solution while measuring the viscosity of the mixture and terminating evaporation process upon reaching the viscosity value V,'}{'sub': 'S', '(e) ripening a single-phase solution obtained in (d) to give a silica sol material with the viscosity value V.'}2. The process according to claim 1 , where the viscosity values Vand Yare dynamic viscosities which are measured by measurement probes within the mixture.3. The process according to claim 1 , where the stipulated viscosity value Vis in a range from 30 to 100 Pa·s at a shear rate of 10 sat 4° C.4. The process according to claim 1 , where the combining in (c) takes place over a period ...

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Номер записи: 67
23-03-2017 дата публикации

Method of preparing doped and/or composite carbon fibers

Номер: US20170081786A1
Автор: Karen Lozano, Lee Daniel Cremar, Mandana Akia, Maria del Rocio Nava Lara
Принадлежит: University of Texas System

A method of producing doped carbon fibers, doped systems to prepare graphene-fiber hybrid structures, or doped carbon nanostructures, includes forming doped polymer precursors and decomposing at least a portion of the polymeric precursors to form carbon fibers. The decomposition may be accomplished by treating the doped polymer precursors with acid vapor from an aqueous acid solution at a temperature of less than 250° C.

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Номер записи: 68
31-03-2022 дата публикации

LIQUID-CRYSTAL POLYESTER MULTIFILAMENT, AND HIGH-LEVEL PROCESSED PRODUCT COMPRISING SAME

Номер: US20220098760A1
Автор: Matoba Munekazu, Sakae Ryosuke, Tanaka Hisatoshi
Принадлежит: Toray Industries, Inc.

This liquid-crystal polyester multifilament has a compression yield stress of 15-40 mN/dtex. The present invention provides a liquid-crystal polyester multifilament with which it is possible to realize much higher flexural fatigue resistance in comparison with the prior art when used in a high-level processed product. 1. A liquid crystalline polyester multifilament having a fiber compressive yield stress of 15 to 40 mN/dtex.2. The liquid crystalline polyester multifilament according to claim 1 , having a yarn flexibility index of 8.0 or less.3. The liquid crystalline polyester multifilament according to claim 1 , having an initial elastic modulus of 400 cN/dtex or more.4. The liquid crystalline polyester multifilament according to claim 1 , having a number of filaments of 10 to 600.5. The liquid crystalline polyester multifilament according to claim 1 , having a total fineness of 100 to 3000 dtex.7. The liquid crystalline polyester multifilament according to claim 1 , wherein a percentage of the structural unit (I) is 40 to 85 mol % based on a total amount of the structural units (I) claim 1 , (II) claim 1 , and (III) claim 1 , a percentage of the structural unit (II) is 60 to 90 mol % based on a total amount of the structural units (II) and (III) claim 1 , and a percentage of the structural unit (IV) is 40 to 95 mol % based on a total amount of the structural units (IV) and (V).8. The liquid crystalline polyester multifilament according to claim 1 , comprising a liquid crystalline polyester including a p-hydroxybenzoic acid structural unit and a 6-hydroxy-2-naphthoic acid structural unit.9. The liquid crystalline polyester multifilament according to claim 1 , comprising claim 1 , based on the liquid crystalline polyester multifilament in total claim 1 , 60 to 80 mol % of a p-hydroxybenzoic acid structural unit and 20 to 40 mol % of a 6-hydroxy-2-naphthoic acid structural unit.10. A high-order processed product comprising the liquid crystalline polyester ...

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Номер записи: 69
25-03-2021 дата публикации

COMPRESSIBLE ADJUNCT WITH CROSSING SPACER FIBERS

Номер: US20210085326A1
Автор: Akram Ismail, Consonni Sofia Maria, Easter Ashley D., Goldrein Howell T., Harris Jason L., IV Frederick E., Latham Helen S., Moir Robert S., Scheib Charles J., Shelton, Vendely Michael J.
Принадлежит:

A staple cartridge assembly for use with a surgical stapling instrument includes a staple cartridge including a plurality of staples and a cartridge deck. The staple cartridge assembly also includes a compressible adjunct positionable against the cartridge deck, wherein the staples are deployable into tissue captured against the compressible adjunct, and wherein the compressible adjunct comprises a first biocompatible layer comprising a first portion, a second biocompatible layer comprising a second portion, and crossed spacer fibers extending between the first portion and the second portion. 1. A staple cartridge assembly for use with a surgical stapling instrument , wherein the staple cartridge assembly comprises: a plurality of staples; and', 'a cartridge deck; and, 'a staple cartridge, comprising a first biocompatible layer comprising a first portion;', 'a second biocompatible layer comprising a second portion; and', 'crossed spacer fibers extending between the first portion and the second portion., 'a compressible adjunct positionable against the cartridge deck, wherein the staples are deployable into tissue captured against the compressible adjunct, and wherein the compressible adjunct comprises2. A staple cartridge assembly for use with a surgical stapling instrument , wherein the staple cartridge assembly comprises: a plurality of staples; and', 'a cartridge deck; and, 'a staple cartridge, comprising [ a first bonding node; and', 'a second bonding node arranged in a first row with the first bonding node;, 'a tissue-facing layer, comprising, a third bonding node vertically aligned with the first bonding node; and', 'a fourth bonding node vertically aligned with the second bonding node, wherein the fourth bonding node is arranged in a second row with the third bonding node;, 'a deck-facing layer, wherein the tissue-facing layer is spaced apart from the deck-facing layer, and wherein the deck-facing layer comprises, 'a first spacer fiber extending between the ...

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Номер записи: 70
02-04-2015 дата публикации

Fiber having a Nanohair Surface Topography

Номер: US20150090658A1
Автор: Kelly Branham, Sara Honarbakhsh
Принадлежит: Kimberly Clark Worldwide Inc

A fiber that has a unique surface topography in that it contains a plurality of nanohairs extending outwardly from an external surface of an elongate structure of the fiber is provided. To form the nanohairs, a polymer composition is spun that includes organofunctional nanoparticles (e.g., polyhedral organofunctional silsesquioxanes) embedded within a matrix of a base polymer. Despite being initially embedded within the polymer, the present inventors have discovered that, through selective control over the nature and relative concentration of the components of the composition, as well as the method in which the fiber is formed, a substantial portion of the nanoparticles can migrate to the surface of the fiber as it is formed and thus become arranged in the form of nanohairs.

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Номер записи: 71
25-03-2021 дата публикации

Fully dull polyester drawn yarn and preparing method thereof

Номер: US20210087716A1
Автор: FENG CHEN, Lixin YIN, Xiaohua Sun
Принадлежит: Jiangsu Hengli Chemical Fiber Co Ltd

A type of fully dull polyester drawn yarns and a preparing method thereof are disclosed. The preparing method is to melt spinning a modified polyester with the fully drawn yarn (FDY) technique, and the modified polyester is a product of an esterification and successive polycondensation reactions of evenly mixed terephthalic acid, ethylene glycol, 2,5,6,6-tetramethyl-2,5-heptanediol, a fluorinated dicarboxylic acid, a matting agent, a calcined multiphase solid acid base powder and a doped Bi2O3 powder. The obtained fiber has an intrinsic viscosity drop of 18-26% when stored at 25° C. and R.H. 65% for 60 months. The method of improving the degradation performance of polyester fiber through the incorporation of 2,5,6,6-tetramethyl-2,5-heptanediol, the fluorinated dicarboxylic acid, the doped Bi2O3 powder and the calcined multiphase solid acid base powder is easy to operate.

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Номер записи: 72
30-03-2017 дата публикации

Tubular absorbable constructs

Номер: US20170086832A1
Автор: Frederick E. Shelton, IV, Jason L. Harris, Michael J. Vendely, Susanne Landgrebe
Принадлежит: Ethicon LLC

A compressible adjunct is used with a surgical instrument. The compressible adjunct includes a hollow fibrous construct and a core fibrous construct housed within the hollow fibrous construct, wherein the hollow fibrous construct comprises at least one biocompatible material that has experienced at least one transition from a more ordered phase to a less ordered phase in response to heating the hollow fibrous construct to a predetermined temperature.

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Номер записи: 73
30-03-2017 дата публикации

Compressible adjuncts with bonding nodes

Номер: US20170086840A1
Автор: Frederick E. Shelton, IV, Jason L. Harris, Michael J. Vendely
Принадлежит: Ethicon LLC

A staple cartridge assembly is used with a surgical stapler. The staple cartridge assembly includes a staple cartridge including a cartridge body, a cartridge deck, and a plurality of staples deployable from the cartridge body through the cartridge deck. The staple cartridge assembly includes a compressible adjunct positionable against the cartridge deck. The compressible adjunct includes a plurality of unaltered fibers and a plurality of altered fibers that are melted and resolidified. The unaltered fibers include a first fiber including a first fiber portion and a second fiber including a second fiber portion extending over the first fiber portion. The compressible adjunct further includes a node which comprises the first fiber portion, the second fiber portion, and at least a portion of the plurality of altered fibers, wherein the at least a portion of the plurality of altered fibers affixes the first fiber portion and the second fiber portion.

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Номер записи: 74
30-03-2017 дата публикации

METHOD FOR APPLYING AN IMPLANTABLE LAYER TO A FASTENER CARTRIDGE

Номер: US20170086842A1
Автор: Aronhalt Taylor W., Barton Trevor J., IV Frederick E., Ransick Mark H., Schellin Emily A., Shelton, Vendely Michael J., Weaner Lauren S.
Принадлежит:

Methods for forming an implantable layer onto a staple cartridge are disclosed. 1. A method of applying an implantable layer to a cartridge body comprising the steps of:obtaining a staple cartridge body including staple cavities;heating a polymeric material; andaccelerating the heated polymeric material toward the staple cartridge body such that an implantable layer is formed over the staple cavities.2. The method of claim 1 , further comprising the step of inserting staples into the staple cavities before said accelerating step.3. The method of claim 1 , further comprising the steps of:cooling the heated polymeric material; andtrimming the polymeric material after said cooling step.4. The method of claim 3 , wherein the cartridge body comprises a periphery claim 3 , and wherein said implantable layer is trimmed according to the periphery during said trimming step.5. The method of claim 1 , wherein said heating step comprises heating the polymeric material above its glass transition temperature.6. The method of claim 1 , wherein said heating step comprises heating the polymeric material above its melt temperature.7. The method of claim 1 , further comprising the steps of:heating a second polymeric material; andaccelerating the second heated polymeric material toward the staple cartridge body such that a second implantable layer is formed over the staple cavities.8. The method of claim 1 , wherein the heated polymeric material comprises a first heated polymeric material claim 1 , and wherein said accelerating step comprises accelerating a second heated polymeric material with the first heated polymeric material toward the staple cartridge body.9. The method of claim 1 , wherein said method is performed without mixing the polymeric material with a solvent.10. The method of claim 1 , wherein said method is performed without mixing the polymeric material with dioxane.11. The method of claim 1 , wherein said accelerating step comprises accelerating the polymeric material ...

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Номер записи: 75
30-03-2017 дата публикации

Progressively releasable implantable adjunct for use with a surgical stapling instrument

Номер: US20170086844A1
Автор: Emily A. Schellin, Lauren S. Weaner, Michael J. Vendely, Taylor W. Aronhalt, Trevor J. Barton
Принадлежит: Ethicon LLC

A staple cartridge assembly is disclosed comprising, one, a plurality of staples removably stored within a surgical staple cartridge and, two, an implantable adjunct. The implantable adjunct is configured to be progressively released from the surgical staple cartridge during a firing progression of a firing assembly configured to travel through the surgical staple cartridge.

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Номер записи: 76
05-05-2022 дата публикации

Immersed rotary jet spinning (irjs) devices and uses thereof

Номер: US20220136136A1
Автор: Grant Michael GONZALEZ, Holly M. Golecki, Josue A. Goss, Kevin Kit Parker, Kwanwoo SHIN
Принадлежит: Harvard College

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.

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Номер записи: 77
12-05-2022 дата публикации

Flash spinning process

Номер: US20220145497A1
Автор: Corneille Schmitz, Jan Van Meerveld, Orest Skoplyak, Serge Rebouillat
Принадлежит: DuPont Safety and Construction Inc

A process for the preparation of plexifilamentary film-fibril strands of polymer. The process includes the steps of generating a spin fluid containing (a) 5 to 30 wt. % containing one or more polymer types, (b) a primary spin agent selected from the group consisting of dichloromethane, cis-1,2-dichloroethylene and trans-1,2-dichloroethylene, and (c) a co-spin agent comprising 1H,6H-perfluorohexane or 1H-perfluorohexane or 1H-perfluoroheptane. The spin fluid is flash-spun at a pressure that is greater than the autogenous pressure of the spin fluid into a region of lower pressure to form plexifilamentary film-fibril strands of the polymer. The co-spin agent is present in the spin fluid in an amount sufficient to form an azeotrope-like composition with the primary spin agent in the presence of the one or more polymer types. The polymer may be selected from the group consisting of high density polyethylene, polypropylene, polybutene-1, polymethylpentene, polyvinylidene fluoride, poly (ethylene tetrafluoroethylene), and blends of the foregoing.

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Номер записи: 78
26-03-2020 дата публикации

METHOD FOR PRODUCING FIBERS AND NON-WOVEN FABRICS BY SOLUTION BLOW SPINNING AND NON-WOVEN FABRIC PRODUCED THEREBY

Номер: US20200095706A1
Автор: Toskas Georgios, Tulke Andreas, Venugopal Arun Prasad
Принадлежит:

The invention refers to the use of a parent solution (A) during a method for producing fibers for a fiber fleece by a so-called solution blow spinning. Water is used as solvent for the parent solution (A). At least one water-soluble polymer and preferably exactly one water-soluble polymer is dissolved in the water of the parent solution (A). The parent solution (A) additionally contains at least one surfactant and optionally plasticizer for the used at least one polymer respectively. By means of a parent solution (A) it is possible to produce fibers () by solution blow spinning. 124. A method for producing fibers and fleece materials () by solution blow spinning using a parent solution (A) , the method comprising:formulating the parent solution (A) using water as a solvent,dissolving at least one water-soluble polymer in the parent solution (A),adding at least one surfactant to the parent solution (A); andproducing at least one of a fiber and a fleece material by solution blow spinning using the parent solution (A).2. The method according to claim 1 , wherein formulating the parent solution (A) includes using water exclusively as the solvent.3. The method according to claim 1 , wherein the at least one water-soluble polymer in the parent solution (A) contains exclusively polymers that are water-soluble.4. The method according to claim 1 , wherein the at least one water-soluble polymer is one or any combination of polyvinyl alcohol claim 1 , polyvinyl methyl ether claim 1 , polyethylene oxide claim 1 , polyvinyl pyrrolidone claim 1 , polyethylene glycol claim 1 , polyacrylic acid claim 1 , and polyacrylamide.5. The method according to claim 1 , wherein the concentration of the water in the parent solution (A) has an amount of 30 wt-% to 99 wt-%.6. The method according to claim 5 , wherein the concentration of the water in the parent solution (A) has an amount of 50 wt-% to 95 wt-%.7. The method according to claim 6 , wherein the concentration of water in the parent ...

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Номер записи: 79
19-04-2018 дата публикации

METHOD AND APPARATUS FOR MAKING A FIBER FLEECE

Номер: US20180105956A1
Автор: Fett Thomas, Hilgers Mark, Lettowsky Christoph, MAGER Jens, ROESNER Andreas, Stelter Christian, Vodencarevic Asmir
Принадлежит:

A system for making a nonwoven nonwoven spun-bond or melt-blown fabric has a spinneret for spinning fibers or filaments, a cooler downstream of the spinneret for cooling the spun fibers or filaments, a stretcher downstream of the cooler for stretching the cooled fibers or filaments, and a conveyor downstream of the stretcher. The stretched and cooled fibers or filaments are deposited as a nonwoven web on the conveyor. Sensors measure input parameters at the spinneret, at the cooler, at the stretcher, and/or at at least one diffuser or at the conveyor. An evaluating unit for determining an output parameter from the measured input parameter with respect to a predetermined reference parameter. 1. A method of making a nonwoven fabric from fibers in a nonwoven spun-bond or melt-blown fabric-making system , the method comprising the steps of:spinning fibers or filaments being spun with a spinneret;cooling the spun fibers or filaments downstream from the spinneret with a cooler;stretching the cooled fibers or filaments downstream of the cooler with a stretcher;depositing the stretched and cooled fibers or filaments as a nonwoven web on a conveyor;determining reference parameters for the spinneret, cooler, stretcher, and/or conveyor representing normal trouble-free operation of the system; andgenerating input parameters with sensors at the spinneret, cooler, stretcher, and/or conveyor during operation of the system; andevaluating the input parameters and generating an output parameter representing the evaluation.2. The method defined in claim 1 , wherein the evaluation is a comparison of each output parameter with the respective reference parameter.3. The method defined in claim 1 , further comprising the step of:in the event of a deviation of at least one output parameter from the respective reference parameter, generating an alarm signal and recording the alarm signal in an independent memory.4. The method defined in claim 1 , wherein the reference parameters are ...

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Номер записи: 80
19-04-2018 дата публикации

Fibrous Structures Exhibiting Improved Reopenability

Номер: US20180105998A1
Автор: BARNHOLTZ Steven Lee, Denbow James Roy, Klawitter Timothy James, Sheehan Jeffrey Glen, Stelljes Michael Gomer, SUER Michael Donald, Trokhan Paul Dennis, YOUNG Christopher Michael
Принадлежит:

Articles, such as sanitary tissue products, including fibrous structures, and more particularly articles including fibrous structures having a plurality of fibrous elements wherein the article exhibits differential cellulose content throughout the thickness of the article and methods for making same are provided. 1. A fibrous structure comprising a plurality of fibers wherein the fibrous structure exhibits a CRT Rate of greater than 0.35 g/sec as measured according to the Absorptive Rate and Capacity (CRT) Test Method and a Wet Web-Web CoF of less than 1.85 as measured according to the Wet Web-Web CoF Test Method.2. The fibrous structure according to wherein the fibrous structure further comprises a plurality of filaments.3. The fibrous structure according to wherein at least one of the filaments comprises a polymer.4. The fibrous structure according to wherein the polymer comprises a thermoplastic polymer.5. The fibrous structure according to wherein the thermoplastic polymer comprises a polyolefin.6. The fibrous structure according to wherein the polyolefin is selected from the group consisting of: polypropylene claim 5 , polyethylene claim 5 , and mixtures thereof.7. The fibrous structure according to wherein the fibrous structure comprises a coform fibrous structure.8. The fibrous structure according to wherein at least one of the fibers is a pulp fiber.9. The fibrous structure according to wherein the fibrous structure further exhibits a Bending Modulus of less than 10.00 as measured according to the Flexural Rigidity and Bending Modulus Test Method.10. The fibrous structure according to wherein the fibrous structure further exhibits a TS7 of less than 17.0 as measured according to the Emtec Test Method.11. A fibrous structure comprising a plurality of fibers wherein the fibrous structure exhibits an HFS of greater than 17.0 g/g as measured according to the Horizontal Full Sheet (HFS) Test Method and a Wet Web-Web CoF of greater than 1.85 as measured according ...

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Номер записи: 81
19-04-2018 дата публикации

Fibrous Structure-Containing Articles

Номер: US20180105999A1
Автор: Christopher Michael Young, Jeffrey Glen Sheehan, Michael Donald Suer, Michael Gomer STELLJES, Paul Dennis Trokhan, Steven Lee Barnholtz, Timothy James Klawitter
Принадлежит: Procter and Gamble Co

Articles, such as sanitary tissue products, including fibrous structures, and more particularly articles including fibrous structures having a plurality of fibrous elements wherein the article exhibits differential cellulose content throughout the thickness of the article and methods for making same are provided.

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Номер записи: 82
30-04-2015 дата публикации

FIBROUS ELEMENTS COMPRISING AN ACRYLAMIDE-BASED COPOLYMER AND FIBROUS STRUCTURES EMPLOYING SAME

Номер: US20150114580A1
Автор: Gordon Gregory Charles, Kleinwaechter Joerg, McKee Matthew Gary, SIVIK Mark Robert, Trokhan Paul Dennis
Принадлежит:

Fibrous elements, for example filaments, containing an acrylamide-based copolymer, fibrous structures employing such fibrous elements, and methods for making same are provided. 1. A fibrous element comprising a filament-forming polymer and an acrylamide-based copolymer comprising two or more different monomeric units , at least one of which is an acrylamide monomeric unit and at least one of which is a monomeric unit selected from the group consisting of: pendant hydroxyl-containing monomeric units , pendant hydroxyl alkylether-containing monomeric units , pendant hydroxyl alkylester-containing monomeric units , pendant hydroxyl alkylamide-containing monomeric units , and mixtures thereof.8. The fibrous element according to wherein the fibrous element comprises from about 0.001% to about 10% by weight of the fibrous element of the acrylamide-based copolymer.9. The fibrous element according to wherein the filament-forming polymer comprises a hydroxyl polymer.10. The fibrous element according to wherein the hydroxyl polymer comprises a polysaccharide.11. The fibrous element according to wherein the polysaccharide is selected from the group consisting of: starch claim 10 , starch derivatives claim 10 , starch copolymers claim 10 , chitosan claim 10 , chitosan derivatives claim 10 , chitosan copolymers claim 10 , cellulose claim 10 , cellulose derivatives claim 10 , cellulose derivatives claim 10 , cellulose copolymers claim 10 , hemicelluloses claim 10 , hemicelluloses derivatives claim 10 , hemicelluloses copolymers claim 10 , and mixtures thereof.12. A fibrous structure comprising a plurality of fibrous elements according to .13. A fibrous element comprising a filament-forming polymer and an acrylamide-based copolymer comprising an acrylamide monomeric unit wherein the fibrous element exhibits an Elongation at Rupture of greater than 55% as measured according to the Elongation at Rupture Test Method.14. A fibrous structure comprising a plurality of fibrous elements ...

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Номер записи: 83
20-04-2017 дата публикации

Method of Preparing of Natural Graphene Cellulose Blended Spunbond Nonwoven Fabric

Номер: US20170107644A1
Автор: CHOU Shao-Hua, CHOU Wen-Tung, Hsu Chia-Yu, Huang Kun-Shan, Lai Ming-Yi
Принадлежит:

This application describes a method of preparation of a natural graphene cellulose blended spunbond nonwoven fabric, which comprises using a graphite powder as a raw material for preparing a graphene solution, adding the graphene solution to a slurry formed by mixing and dissolving a wood pulp with N-methylmorpholine N-oxide (NMMO), removing the water content thereof to form a spinning dope, and then directly preparing the natural graphene cellulose blended spunbond nonwoven fabric by a spunbond process. The present method does not require a highly toxic hydrazine hydrate solution. Further, by increasing the adding ratio of the graphene solution in the manufacturing process, control of the antistatic properties and thermal transferring function can be achieved, and thereby various requirements of different consumers can be satisfied. Besides, the fabric can decompose naturally after being used, and thus the product is harmless, natural, and environmentally friendly. 1. A method of preparing natural graphene cellulose blended spunbond nonwoven fabric , which comprises the following steps:{'sub': 2', '4', '4', '3, '(a) combining a graphite powder with a solution comprising 1 to 10 wt. % of a first compound selected from the group consisting of sulfuric acid (HSO), hydrochloric acid (HCl), perchloric acid (HClO), hydrogen iodide (HI), hydrofluoric acid (HF), and nitric acid (HNO), then stirring for 30 minutes in an ice bath environment;'}{'sub': '4', '(b) adding a solution comprising 1 to 20 wt. % potassium permanganate (KMnO) to the product of step (a), stirring for 1 to 2 hours, and adding distilled water, wherein the potassium permanganate solution is continuously added until none of the purple smoke generated by reacting with the potassium permanganate is formed from the distilled water;'}{'sub': 2', '2, '(c) adding a solution comprising 1 to 10 wt. % hydrogen peroxide (HO) to the product of step (b), wherein the hydrogen peroxide solution is added until no bubbles ...

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Номер записи: 84
29-04-2021 дата публикации

SOLUTION BLOW SPUN PROTEIN-BASED POLYMER FIBERS AND PRODUCTS COMPRISING SAME

Номер: US20210123163A1
Автор: HU XIAO, Mou Xiaoyang
Принадлежит:

The invention relates to non-woven protein fibers and to methods for forming and producing the same. In certain embodiments, the invention provides a method of processing a protein comprising dissolving a protein in a solution, optionally removing any insoluble materials from the solution, and spraying the solution under an applied pressure. In other embodiments, the protein can be derived from a range of sources, including but not limited to arthropod silks, animal keratin (e.g. hair and wool), tissue elastin, collagen, resilin, and plant protein. In certain embodiments, the methods of the invention are an alternative to electrospinning methods known in the art. 1. A method of producing non-woven protein fibers , the method comprising:(a) dissolving a protein in an acidic solution;(b) optionally removing any insoluble material from the solution; and wherein the solution is sprayed without application of an electrical potential; and', 'wherein at least one additional non-protein material is present in the acidic solution and is selected from the group consisting of a pharmaceutical agent, synthetic polymer, natural polymer, plasticizer, metal, metal alloy, metal oxide, metal salt, ceramic, glass, natural composite, synthetic composite, carbon material, nanoparticle, nanotube, nanofiber, nanosheet, microsphere, microfiber, and any combinations thereof., '(c) spraying the solution under an applied pressure at a collection surface, such that the solution evaporates after being sprayed, forming protein fibers upon reaching or before reaching the collection surface;'}2. The method of claim 1 , wherein the at least one additional non-protein material is at least one of the following:{'sub': 2', '2', '2', '3', '2', '3, '(a) a metal oxide selected from the group consisting of SiO, TiO, CaO, AlO, CuO, ZnO, FeO, MnO, NiO, BaO, SrO, and FeO;'}(b) a pharmaceutical agent selected from the group consisting of an antibiotic, a β-lactamase inhibitor, an anti-diabetic agent, and an ...

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Номер записи: 85
02-04-2020 дата публикации

NONWOVEN CELLULOSE FIBER FABRIC WITH INCREASED WATER HOLDING CAPABILITY AND LOW BASIS WEIGHT

Номер: US20200102676A1
Автор: Carlyle Tom, Einzmann Mirko, Goldhalm Gisela, Hayhurst Malcolm John, Mayer Katharina, Sagerer-Foric Ibrahim
Принадлежит:

It is described a nonwoven cellulose fiber fabric directly manufactured from a lyocell spinning solution. The fabric comprises a network of substantially endless fibers. The fabric exhibits a water holding capability of at least 850 mass percent. Further, the fabric comprises a mass per unit area which is smaller than 25 gram per square meter. It is further described a method and a device for manufacturing such a fabric, a product or composite comprising such a fabric, and various use applications for such a fabric. 2. The fabric according to claim 1 , whereinthe fibers have a copper content of less than 5 ppm and/or have a nickel content of less than 2 ppm.12. A method of manufacturing nonwoven cellulose fiber fabric claim 1 , in particular a fabric according to claim 1 , directly from a lyocell spinning solution claim 1 , the method comprisingextruding the lyocell spinning solution through a jet with orifices supported by a gas flow into a coagulation fluid atmosphere to thereby form substantially endless fibers;collecting the fibers on a fiber support unit to thereby form the fabric; andadjusting process parameters of the manufacturing process so that the fabric exhibits a water holding capability of at least 850 mass percent, and the fabric comprises a mass per unit area which is smaller than 25 gram per square meter.13. A device for manufacturing nonwoven cellulose fiber fabric directly from a lyocell spinning solution claim 1 , in particular for manufacturing a fabric according to claim 1 , the device comprisinga jet with orifices configured for extruding the lyocell spinning solution supported by a gas flow;a coagulation unit configured for providing a coagulation fluid atmosphere for the extruded lyocell spinning solution to thereby form substantially endless fibers;a fiber support unit configured for collecting the fibers to thereby form the fabric; anda control unit configured for adjusting process parameters so that the fabric exhibits a water holding ...

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Номер записи: 86
28-04-2016 дата публикации

Electrospinning apparatus and nanofibers produced therefrom

Номер: US20160114516A1
Автор: Daehwan Cho, Eduard Zhmayev, Yong L. Joo
Принадлежит: CORNELL UNIVERSITY

Provided herein are gas and/or temperature assisted electrospinning apparatus, processes, components and polymer nanofibers.

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Номер записи: 87
13-05-2021 дата публикации

FIBER-WRAPPED SMOKELESS TOBACCO PRODUCT

Номер: US20210137155A1
Автор: Black Shannon Maxwell, Burke William J., CARROLL Andrew Nathan, SUN Yan Helen
Принадлежит: Altria Client Services LLC

A fiber-wrapped smokeless tobacco product includes smokeless tobacco and a plurality of polymeric fibers surrounding the smokeless tobacco. The polymeric fibers can have a basis weight of 5 gsm or less and a diameter of less than 100 microns. In some cases, the polymeric fibers are melt-blown polymeric fibers. In some cases, the polymeric fibers are centrifugal force spun polymeric fibers. A method of preparing a fiber-wrapped smokeless tobacco product includes melt-blowing or centrifugal force spinning a plurality of polymeric fibers to create an polymer deposition zone and passing a body comprising smokeless tobacco through the polymer deposition zone. In some cases, an electrostatic charge can be applied to the plurality of polymeric fibers, the body, or a combination thereof. In some cases, a spin is applied to the body when passing through the polymer deposition zone. 1. (canceled)2. An oral product comprising: 'nicotine; and', 'a body including,'} a polymer, and', 'a filler configured to increase a hydraulic permittivity of the porous wrap., 'a plurality of fibers, the plurality of fibers including,'}, 'a porous wrap surrounding the body and having a basis weight of less than or equal to 40 grams per square meter, the porous wrap including,'}3. The oral product of claim 2 , wherein the nicotine is tobacco-extracted nicotine.4. The oral product of claim 2 , wherein the porous wrap is seamless.5. The oral product of claim 2 , wherein the polymer includes an elastomer.6. The oral product of claim 5 , wherein the elastomer includes polyurethane.7. The oral product of claim 2 , wherein at least a portion of the fibers of the plurality define a diameter of less than 100 microns.8. The oral product of claim 7 , wherein the diameter ranges from 0.5 microns to 5 microns.9. The oral product of claim 7 , wherein the diameter ranges from 10 nanometers to 1 micron.10. The oral product of claim 2 , wherein the plurality of fibers are non-woven.11. The oral product of claim ...

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Номер записи: 88
27-04-2017 дата публикации

System for industrial yarn production from composite polyethylene naphthalate material

Номер: US20170114477A1
Автор: Emine GÜVEN, Ozlem Turkarslan
Принадлежит: Kordsa Global Endustriyel Iplik ve Kord Bezi Sanayi ve Ticaret AS

The present invention relates to a system for industrial polyester yarn production in order to be used in industrial fabric production wherein polyethylene naphthalate (PEN) material is used mixing with liquid crystal polymer material and thus the tenacity, elastic modulus and dimensional stability of the obtained material is improved.

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Номер записи: 89
05-05-2016 дата публикации

POLYER/FILLER/METAL COMPOSITE FIBER AND PREPARATION METHOD THEREOF

Номер: US20160122908A1
Автор: Cai Chuanlun, Chen Gang, Gao Jianming, JIANG Haibin, Lai Jinmei, Li Binghai, Qi Guicun, Qiao Jinliang, Song Zhihai, WANG Liangshi, Wang Xiang, Wang Ya, Zhang Hongbin, Zhang Xiaohong, Zhu Yilei
Принадлежит:

The present invention relates to a polymer/filler/metal composite fiber, including a polymer fiber comprising a metal short fiber and a filler; the metal short fiber is distributed as a dispersed phase within the polymer fiber and distributed in parallel to the axis of the polymer fiber; the filler is dispersed within the polymer fiber and distributed between the metal short fibers; the filler does not melt at the processing temperature of the polymer; said metal is a low melting point metal and selected from at least one of single component metals and metal alloys, and has a melting point which ranges from 20 to 480° C., and, at the same time, which is lower than the processing temperature of the polymer; the metal short fiber and the polymer fiber have a volume ratio of from 0.01:100 to 20:100; the filler and the polymer have a weight ratio of from 0.1:100 to 30:100. The composite fiber of the present invention has reduced volume resistivity and decreased probability of broken fibers, and has a smooth surface. The present invention is simple to produce, has a lower cost, and would be easy to industrially produce in mass. 1. A polymer/filler/metal composite fiber , including a polymer fiber comprising a metal short fiber and a filler , and having the microstructure that the metal short fiber is distributed as a dispersed phase within the polymer fiber , and the metal short fiber as the dispersed phase is distributed in parallel to the axis of the polymer fiber , the filler is dispersed within the polymer fiber and is distributed between the metal short fibers , wherein the polymer is a thermoplastic resin , the filler does not melt at the processing temperature of the polymer , the metal is a low melting point metal and selected from at least one of single component metals and metal alloys , and has a melting point which ranges from 20 to 480° C. and at the same time which is lower than the processing temperature of the polymer.2. The polymer/filler/metal composite ...

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Номер записи: 90
25-08-2022 дата публикации

Fibrous structure-containing articles that exhibit consumer relevant properties

Номер: US20220266569A1
Автор: Christopher Michael Young, James Roy Denbow, Jeffrey Glen Sheehan, Michael Donald Suer, Michael Gomer STELLJES, Paul Dennis Trokhan, Steven Lee Barnholtz, Timothy James Klawitter
Принадлежит: Procter and Gamble Co

Articles, such as sanitary tissue products, comprising fibrous structures, and more particularly articles comprising fibrous structures comprising a plurality of fibrous elements wherein the articles exhibit improved consumer relevant properties, for example improved bulk and absorbent properties, compared to known articles and methods for making same are provided.

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Номер записи: 91
04-05-2017 дата публикации

MULTIFUNCTIONAL SPINNING DEVICE

Номер: US20170121853A1
Автор: DUMEE Ludovic Francis Yannick, Gao Weimin, HE Li, KONG Lingxue, SHE Fenghua, TAN Long, WEI Baoping
Принадлежит: NEWORLD E & E PTY LTD.

The invention discloses a multifunctional spinning device, comprising a solution storage apparatus, a solution spraying apparatus, a solution delivery apparatus, a drive apparatus, a high-voltage power supply apparatus, and a fiber collecting apparatus. The device not only realizes production of micron and nano fibers with multiple structures or a mixture thereof on one device, but also greatly improves the production yield thereof, tremendously reduces a voltage value of the required high-voltage electrostatic field, even does not require involvement of the high-voltage electrostatic field, reduces costs, and improves production safety. 1. A multifunctional spinning device , comprising:a solution storage apparatus used for storing spinning solutions, wherein space for solution storage in the solution storage apparatus is formed by several drums arranged in a coaxial nesting manner and a sealing plate; the several drums include at least an inner drum and an outer drum;the outer drum sleeves the peripheral part of the inner drum, and the bottom of the inner drum and the bottom of the outer drum are fixedly connected with an upper surface of the sealing plate, respectively; the inner drum and the sealing plate form an inner solution storage chamber;the inner drum, the outer drum and the sealing plate form an outer solution storage chamber;{'b': '1', 'vertical central axes of the outer drum and the inner drum both are located in a same straight line L;'}a solution delivery apparatus that communicates with the solution storage apparatus and is used for delivering the spinning solutions to the solution storage apparatus;a solution spraying apparatus that is connected to the solution storage apparatus and used for spraying the spinning solutions, and comprises several spray passage opening groups, discharge orifice groups as many as the spray passage opening groups, and spray passage pipe groups as many as the discharge orifice groups, wherein each spray passage opening ...

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Номер записи: 92
04-05-2017 дата публикации

LYOCELL FIBER

Номер: US20170121857A1
Автор: Jeong Jong Cheol, JIN Sang Woo, KIM Woo Chul, Lee Sang Mok, LEE Sang Yoel
Принадлежит: KOLON INDUSTRIES, INC.

This invention relates to a lyocell fiber and, more specifically, to a lyocell fiber exhibiting the same or improved physical properties even if used in a lesser amount, compared to a conventional lyocell fiber, by controlling the shape of the section of a monofilament included in the lyocell fiber to increase the specific surface area of the fiber. 1. A lyocell fiber comprising:a lyocell multifilament manufactured by spinning a lyocell spinning dope including a cellulose pulp and an N-methylmorpholine-N-oxide (NMMO) aqueous solution,wherein the multifilament includes a monofilament having a multi-lobal section, the multi-lobal section includes a plurality of projections, and the plurality of projections comes into contact with a first virtual circle and a second virtual circle, included in the first virtual circle, is integrally formed with the second virtual circle, serving as a core, and comes into contact with the first virtual circle at ends thereof.2. The lyocell fiber of claim 1 , wherein the lyocell spinning dope includes 6 to 16 wt % of the cellulose pulp and 84 to 94 wt % of the N-methylmorpholine-N-oxide aqueous solution.3. The lyocell fiber of claim 2 , wherein the cellulose pulp has an alpha-cellulose content of 85 to 97 wt % and a degree of polymerization (DPw) of 600 to 1700.4. The lyocell fiber of claim 1 , wherein a space occupancy ratio defined in a following Equation 1 is 150 to 400%:{'br': None, 'Space occupancy ratio (%)=(Area of first virtual circle/sectional area of monofilament included in lyocell fiber)×100.\u2003\u2003'}5. The lyocell fiber of claim 1 , wherein the first virtual circle has a radius of 8 to 30 μm.6. The lyocell fiber of claim 1 , wherein the second virtual circle has a radius of 3 to 12 μm.7. The lyocell fiber of claim 1 , wherein the first virtual circle and the second virtual circle are concentric. The present invention relates to a lyocell fiber.A fiber is a piece of natural or synthetic linear material that ...

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Номер записи: 93
25-08-2022 дата публикации

BIODEGRADABLE ADDITIVE, BIODEGRADABLE POLYESTER FIBER AND METHOD FOR PRODUCING THE SAME, AND BIODEGRADABLE FABRIC

Номер: US20220267936A1
Автор: HSU Sen-Huang, LAI Chia-Sheng, LIAO Te-Chao
Принадлежит:

A biodegradable additive, a biodegradable polyester fiber and a method for producing the same, and a biodegradable fabric are provided. The biodegradable additive includes a polyester resin material and a biodegradable resin material. The biodegradable resin material is at least one material selected from the group consisting of polybutylene succinate (PBS), polybutylene adipate terephthalate (PBAT), polycaprolactone (PCL), polylactic acid (PLA), and derivatives thereof. In the biodegradable additive, a content range of the polyester resin material is between 40 wt % and 80 wt %, and a content range of the biodegradable resin material is between 20 wt % and 60 wt %. 1. A biodegradable additive , comprising:a polyester resin material; anda biodegradable resin material, wherein the biodegradable resin material is at least one material selected from the group consisting of polybutylene succinate (PBS), polybutylene adipate terephthalate (PBAT), polycaprolactone (PCL), polylactic acid (PLA), and derivatives thereof;wherein, in the biodegradable additive, a content range of the polyester resin material is between 40 wt % and 80 wt %, and a content range of the biodegradable resin material is between 20 wt % and 60 wt %.2. The biodegradable additive according to claim 1 , further comprising: a microbial attractant claim 1 , wherein the microbial attractant is at least one material selected from the group consisting of a sugar and an alcohol; wherein claim 1 , in the biodegradable additive claim 1 , a content range of the microbial attractant is between 0.1 wt % and 1 wt %.3. The biodegradable additive according to claim 2 , wherein the sugar is at least one of sucrose claim 2 , fructose claim 2 , galactose claim 2 , and glucose claim 2 , and the alcohol is at least one of xylitol claim 2 , sorbitol claim 2 , and mannitol.4. The biodegradable additive according to claim 1 , wherein a molecular structure of the polyester resin material has an ester group claim 1 , and a ...

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Номер записи: 94
16-04-2020 дата публикации

SYNTHETIC FILL MATERIALS HAVING COMPOSITE FIBER STRUCTURES

Номер: US20200115848A1
Автор: Gladish Justin Lee, Milton Andrew, Moir Robert, Moody Krystle, MURPHY MICHAEL
Принадлежит:

In some embodiments, the inventive subject matter relates to a fiber construct suitable for use as a fill material for insulation or padding, comprising: a primary fiber structure comprising a predetermined length of fiber; a secondary fiber structure, the secondary fiber structure comprising a plurality of relatively short loops spaced along a length of the primary fiber. In some embodiments, the inventive subject matter relates to insulative fiber structures that mimic the structure and scale of natural down and thereby provide similar properties. 1. A system for making a fiber construct , comprising:a first ejector coupled to a supply source for holding a flowable, fiber forming material for a primary fiber or secondary fiber;the first ejector being movable in a predetermined pattern relative to a second ejector for the other of primary fiber or secondary fiber so as to be capable of creating a composite fiber structure of the primary fiber and secondary fiber, and wherein in the predetermined pattern, the secondary fiber is disposed on the primary fiber in the plurality of loops; anda segmentation apparatus capable of segmenting the composite fiber into smaller units of fiber constructs wherein the average length of the segmented primary fiber is between 0.1 mm to 5 cm.2. The system of claim 1 , wherein the average length of the segmented primary fiber is between 5 mm to 70 mm.3. The system of claim 1 , wherein each loop of the plurality of loops consists of a single monofilament fiber and has a pair of spaced apart intersection points with the primary fiber claim 1 , wherein each of the intersection points of the primary fiber and the single monofilament fiber is spaced apart along a length of the primary fiber from the other intersection points of the primary fiber and the single monofilament fiber.4. The system of claim 3 , further comprising rollers configured to couple the primary fiber and the secondary fiber together at the intersection points by at least ...

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Номер записи: 95
23-04-2020 дата публикации

Product portion enrobing process and apparatus, and resulting products

Номер: US20200120972A1
Автор: Andrew Nathan Carroll, Robert Smith, Shannon Maxwell Black, Wiliam J. Burke, Yan Helen Sun
Принадлежит: Altria Client Services LLC

A method of enrobing a product portion in polymer strands includes mounting at least one product portion on a holding device and passing the at least one product portion through a polymer enrobing zone. The polymer enrobing zone can include a flow of polymeric fibers produced by a polymer spray head. The polymer fibers can wraparound the at least one product portion to produce an enrobed product portion. The holding device can hold the at least one product portion by passing at least partially through the body of the product portion. At least a portion of the holding device is removed from the enrobed product portion. In some cases, the at least one product portion includes smokeless tobacco.

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Номер записи: 96
01-09-2022 дата публикации

FIBROUS CONSTRUCTS WITH THERAPEUTIC MATERIAL PARTICLES

Номер: US20220273708A1
Автор: Friedrichs Doug, Hall John, Hellgeth John, Mower Wayne, Oberg Rachel
Принадлежит:

Sheets of material used in medical devices and filters are disclosed. The sheets may include a fibrous mat including a plurality of microfibers. The microfibers may include a polymer matrix and a plurality of additive particles. The additive particles may include carbon material particles, therapeutic micro particles, and any combination thereof. Medical devices and filters that use the sheets are disclosed. Methods of producing the sheets are also disclosed. 1. A fibrous sheet , comprising:a mat of fibers, wherein the fibers comprise a polymer matrix and a plurality of therapeutic micro or nano particles.2. The fibrous sheet of claim 1 , wherein the particles comprise a plurality of carbon material particles.3. The fibrous sheet of claim 1 , wherein the fibers are formed by an extrusion process.4. The fibrous sheet of claim 3 , wherein the extrusion process includes any one of rotational spinning claim 3 , electrospinning claim 3 , and pressure extrusion and stretching.5. (canceled)6. The fibrous sheet of claim 2 , wherein the carbon material particles comprise any one of graphene nanosheets claim 2 , graphene quantum dots claim 2 , graphene nanoribbons claim 2 , graphene nanoparticles claim 2 , graphene oxide claim 2 , pyrolytic carbon claim 2 , carbon nanofibers claim 2 , carbon nanotubes claim 2 , fullerenes claim 2 , and any combination thereof.7. The fibrous sheet of claim 2 , wherein each one of the plurality of carbon material particles is sized to pass through an orifice having a diameter of less than 0.159 mm.8. (canceled)9. The fibrous sheet of claim 2 , wherein the carbon material particles are dispersed adjacent a surface of the fibers.10. (canceled)11. The fibrous sheet of claim 1 , wherein the therapeutic micro or nano particles comprise any one of elemental metal claim 1 , metal oxide claim 1 , metal colloidal claim 1 , pyrolytic carbon claim 1 , poly paraphenylene terephthalamide claim 1 , polyamid claim 1 , potassium ferrate claim 1 , and calcium ...

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Номер записи: 97
01-09-2022 дата публикации

FIBROUS STRUCTURE-CONTAINING ARTICLES THAT EXHIBIT CONSUMER RELEVANT PROPERTIES

Номер: US20220274373A1
Автор: BARNHOLTZ Steven Lee, Denbow James Roy, Klawitter Timothy James, Sheehan Jeffrey Glen, Stelljes Michael Gomer, SUER Michael Donald, Trokhan Paul Dennis, YOUNG Christopher Michael
Принадлежит:

Articles, such as sanitary tissue products, including fibrous structures, and more particularly articles including fibrous structures having a plurality of fibrous elements wherein the article exhibits differential cellulose content throughout the thickness of the article and methods for making same are provided. 1. A multi-ply fibrous structure comprising:a. a first ply comprising: a plurality of wood pulp fibers and a plurality of thermoplastic meltblown filaments selected from the group consisting of polyester thermoplastic meltblown filaments, nylon thermoplastic meltblown filaments, polyolefin thermoplastic meltblown filaments, biodegradable thermoplastic meltblown filaments, compostable thermoplastic meltblown filaments, and mixtures thereof, wherein the plurality of thermoplastic meltblown filaments exhibit a length of greater than or equal to 5.08 cm, wherein a first portion of the plurality of wood pulp fibers are in the form of a first wet laid fibrous structure and a second portion of the plurality of wood pulp fibers are commingled together with a portion of the thermoplastic meltblown filaments in the form of a coform fibrous structure, wherein the portion of the thermoplastic meltblown filaments in the form of the coform fibrous structure are spun from a die and directly laid on top of the first wet laid fibrous structure; andb. a second ply comprising a second wet laid fibrous structure comprising a plurality of wood pulp fibers associated with the first wet laid fibrous structure such that the multi-ply fibrous structure exhibits a Wet/Dry CD TEA of at least 1.300 as measured according to the Wet and Dry Tensile Strength Test Methods.2. The multi-ply fibrous structure according to wherein at least one of the plurality of thermoplastic meltblown filaments is selected from the group consisting of polyolefin thermoplastic meltblown filaments claim 1 , polylactic acid thermoplastic meltblown filaments claim 1 , polyhydroxyalkanoate thermoplastic ...

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Номер записи: 98
23-04-2020 дата публикации

Use of Microfibers and/or Nanofibers in Apparel and Footwear

Номер: US20200123680A1
Автор: Carr Thomas D., Gramley Kial, Kay Stephen R., Padron Simon
Принадлежит: CLARCOR Inc.

Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers for the production of clothing items and footwear. Also described herein is a microfiber and/or nanofiber coating system having a support that holds an object to be coated by fibers during the coating process. The support may move the object with respect to the fibers, such that at least a portion of each of the exterior surfaces of the object are coated by the fibers formed by the microfiber and/or nanofiber coating system. 1. A microfiber and/or nanofiber coating system comprising:a fiber producing device comprising a body, the body comprising a plurality of openings, wherein the body is configured to receive material to be produced into a fiber;a driver, coupled to the body, the driver capable of rotating the body;a deposition system that directs fibers produced by the fiber producing device toward an object disposed below the fiber producing device during use; and a support for an object to be coated during use, wherein the support allows motion of the object with respect to the fibers produced by the deposition system such that at least a portion of at least one of the exterior surfaces of the object can be positioned in fibers produced by the fiber producing device and directed by the deposition system; wherein, during use, rotation of the body causes material in the body to be ejected through one or more openings to produce microfibers and/or nanofibers that are at least partially transferred to the object using the deposition system and the support.2. The system of claim 1 , wherein the support comprises a support bracket and a motor coupled to the support bracket claim 1 , wherein the motor is remotely operable claim 1 , and wherein the motor moves the support bracket to alter the exterior surface of the object which is coated by the produced fibers.3. The system of claim 1 , wherein the support comprises a support bracket claim 1 , a tilt motor coupled to ...

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Номер записи: 99
19-05-2016 дата публикации

Normal pressure dyeable polyester fiber and method for producing the same

Номер: US20160138198A1
Автор: Kawamoto Masao, Nakada Hiroyuki, Oka Kazuhide, Tanaka Kazuhiko
Принадлежит: KURARAY CO., LTD.

Disclosed is a fiber made of a polyester resin, wherein the polyester resin is a copolymer including a dicarboxylic acid component and a glycol component; of the dicarboxylic acid component, 80 mol % or more is accounted for by a terephthalic acid component, 4.0 to 12.0 mol % is accounted for by a cyclohexane dicarboxylic acid component, and 2.0 to 8.0 mol % is accounted for by an adipic acid component; and the glycol component contains an ethylene glycol component as a main component thereof. A polyester fiber is thereby provided which can be dyed with excellent deep color property and fastness property in dyeing under a normal pressure environment and which can offer stable quality and processing performance also by a direct spinning stretching method or other general melt-spinning methods. 16-. (canceled)7. A method for producing a fiber comprising a polyester resin , wherein the polyester resin is a copolymer comprising:a dicarboxylic acid component comprising 80 mol % or more of a terephthalic acid component, 4.0 to 12.0 mol % of a cyclohexane dicarboxylic acid component, and 3.0 to 8.0 mol % of an adipic acid component; and a glycol component comprising, as a main component, an ethylene glycol component, '(a) glass transition temperature (Tg): 61° C.≦Tg≦72° C. said method comprising, in the following order:', 'wherein the polyester resin has a glass transition temperature (Tg) satisfying (a)(1) melt-spinning a polyester resin through a spinneret, to obtain a melt-spun thread;(2) cooling the melt-spun thread to a glass transition temperature of the melt-spun thread or lower, thereby obtaining a cooled thread;(3) running the cooled thread within a tube heating apparatus, thereby obtaining a heat-stretched thread,(4) contacting the heat-stretched thread with an oil, to obtain an oiled thread; and(5) winding the oiled thread at a rate of 3500 to 5500 m/minute.8. The method of claim 7 , wherein the polyester resin has a glass transition temperature (Tg) and a ...

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Номер записи: 100