EP2112256B1 - Méthode pour la manufacture d'un filière à fibres de bois - Google Patents

Méthode pour la manufacture d'un filière à fibres de bois Download PDF

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Publication number
EP2112256B1
EP2112256B1 EP09008291A EP09008291A EP2112256B1 EP 2112256 B1 EP2112256 B1 EP 2112256B1 EP 09008291 A EP09008291 A EP 09008291A EP 09008291 A EP09008291 A EP 09008291A EP 2112256 B1 EP2112256 B1 EP 2112256B1
Authority
EP
European Patent Office
Prior art keywords
plate
hollow fibre
spinning nozzle
fibre spinning
shaped body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP09008291A
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German (de)
English (en)
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EP2112256A1 (fr
Inventor
Thorsten Keller
Jens-Holger Stahl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fresenius Medical Care Deutschland GmbH
Original Assignee
Fresenius Medical Care Deutschland GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fresenius Medical Care Deutschland GmbH filed Critical Fresenius Medical Care Deutschland GmbH
Publication of EP2112256A1 publication Critical patent/EP2112256A1/fr
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Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • D01D4/022—Processes or materials for the preparation of spinnerettes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; Spinnerette packs therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/217—Spinnerette forming conjugate, composite or hollow filaments
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49428—Gas and water specific plumbing component making
    • Y10T29/49432—Nozzle making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material

Definitions

  • the invention relates to a method for producing a hollow fiber spinneret.
  • Hollow-fiber spinnerets are already known which serve for the production of polymeric hollow-fiber membranes (cf. JP 2001254221 or JP-A-55090608 ).
  • such hollow fiber spinnerets 10 consist of a base body 12 made of metal, in which a plurality of bores 14, 16, 18, 22 are introduced.
  • a tube 20 is fitted, in which a Kayllstoff- or support means channel 22 is formed for introducing the precipitant or support means.
  • the holes 16 and 18 form Massezu Siliconkanäle for a polymer, which exits via an annular channel 22, which also consists of a corresponding hole, yes.
  • the known hollow-fiber spinnerets 10 In the production of the known hollow-fiber spinnerets 10, methods of conventional metal working are used. Here, therefore, the nozzle structure by the assembly of both nozzle parts, with an inaccuracy, for example, the geometry of the annulus 22 accumulated from the manufacturing errors in the manufacture of the base body 12 and the tube 20. There are also possible mounting errors added, which also contribute to an inaccuracy of Geometry can lead. Finally, the known in the art hollow fiber spinnerets are not arbitrarily reduced in size.
  • the object of the invention is to provide a method for producing a hollow-fiber spinneret with which even fine capillary membranes can be produced, wherein the manufacturing tolerances are minimized and the manufacturing process for these hollow fiber spinnerets is significantly cheaper.
  • the manufacturing process provides a completely novel design for hollow fiber spinnerets since the invention avoids conventional metalworking and uses microstructure techniques.
  • at least two plate-shaped bodies structured by microstructure technology are joined together to form the hollow-fiber spinneret.
  • a second unstructured plate is preferably added to a first plate formed by microstructure technology, wherein the second plate is patterned only after application to the first plate.
  • the plates are connected flat to each other.
  • a hollow fiber spinneret is made of two plates, the first plate excluding the mass feed channels, a mass flow equalization zone, a precipitant / proppant feed bore and a stub, while in the second plate a nozzle structure having a mass annulus and a needle with a precipitant / proppant bore excluded.
  • the second plate additionally contains the MassezuGermankanäle and the mass flow homogenization zone. There omitted on the first plate these elements and the needle stump.
  • a special feature of this construction is that the needle of the spinneret is connected to the first plate only at one end face.
  • the hollow-fiber spinneret produced by the preferred method with which a simple capillary hollow-fiber membrane can be produced, advantageously has the following dimensions: Thickness of the first plate: 0.250 - 1.500 mm Thickness of the second plate: 0.050 - 1.500 mm Outer diameter of the needle: 0.020 - 1.500 mm Length of the needle incl.
  • Needle stump 0.100 - 2.000 mm Diameter of the precipitation agent bore: 0.010 - 1.000 mm Length of precipitation agent hole: 0.150 - 2.500 mm Outer diameter of the annular gap: 0.040 - 3.000 mm Length of the annular gap: 0.050 - 1.500 mm Height of the spinneret: 0.300 - 3.000 mm Edge length of the spinneret: 1,000 - 25,00 mm.
  • a further preferred embodiment of the invention consists of a method in which the base body comprises three plates, the first plate containing feed channels, a homogenization zone and a needle stub with a central feed bore, a second plate adjoining the first plate, feed channels , a homogenizing zone and another needle stub having a concentric annular channel and a needle extension having a central bore, and wherein a third plate, which in turn adjoins the second plate, a nozzle structure comprising a central bore and two concentric annular gaps.
  • Capillary membranes with coextruded bilayers can be produced by means of this hollow-fiber spinneret produced by the process according to the invention.
  • the hollow fiber spinnerets are made of three individual plates, wherein the first plate has a central feed bore, a parallel to the first plate second feed channels and arranged to these equalization zones and a needle stub with concentric annular channel and a central bore and wherein the third plate adjoining the second plate has a nozzle structure consisting of a central bore and two concentric annular gaps.
  • the outer diameter of the multi-channel hollow fiber spinneret is less than 1 mm.
  • the outer diameter of the multi-channel hollow fiber spinneret is less than or equal to 0.45 mm.
  • FIG. 2 is a hollow fiber spinneret 10 made by a method according to a first embodiment of the invention.
  • the entire body 26 is composed of two individual plates 30 and 32.
  • ground supply channels 34, a mass flow equalization zone 36, a precipitating agent supply bore 38 and a needle stub 40 are formed by a corresponding etching operation, which will be described later in detail.
  • the three-dimensional design of here in FIG. 2 shown hollow fiber spinneret results from FIG. 4 , There it can be seen that the Massezu Foodkanäle, ie the channels for supplying the considered to the considered here.
  • the mass flow equalization zone 36 results as an annular space around the needle stub 40 around.
  • the Kayllstoffitznessersbohrung 38 is widened in its pointing to the top area, as in particular the FIG. 2 can be seen.
  • the monocrystalline silicon illustrated embodiment has a thickness of the first plate of 0.4 mm, a thickness of the second plate of 0.1 mm, an outside diameter of the needle of 0.05 mm, a length of the needle including a needle stump of 0.15 mm , a diameter of the precipitating agent bore 38 in the extended range of 0.1 mm, an outer diameter of the annular gap 42 of 0.1 mm and a length of the annular gap 42 of 0.1 mm.
  • the height of the main body 26, ie the height of the entire spinneret 10, is accordingly 0.5 mm, while an edge length of the main body 26 of the spinneret 10 is 2 mm.
  • hollow fiber spinnerets In the production of hollow fiber spinnerets by means of microstructure technology is assumed by 2 round wafer discs with 100 to 300 mm diameter. From these wafers, many spinneret structures are simultaneously produced. The individual hollow fiber spinnerets 10 are then obtained by dicing the finished wafers.
  • the separated split spinnerets can each contain a single nozzle structure, as shown here, but also several nozzle structures in a nozzle structure composite. This is achieved by not separating all the nozzle structures that have been formed on the wafer from each other, but that a plurality of nozzle structures together form a multiple nozzle unit, which are cut along the outer contour of the wafer.
  • the production of the spinnerets 10 begins with the structuring on both sides of a first wafer, which receives the elements 34, 36, 38, 40 of the plate 30 of the spinneret 10.
  • the structures are fabricated by a series of standard lithography techniques, ie photoresist masks, SiO, Si-N or the like, and standard etching techniques.
  • RIE reactive ion etching
  • D-RIE reactive ion deep etching
  • cryo-etching should be mentioned in particular.
  • Particularly suitable are special deep etching methods such as the D-RIE and the cryo-etching.
  • the lithographic masks for the front and back must be aligned visually.
  • the second wafer from which the second plate is to be produced, is bonded to the correspondingly structured first wafer.
  • all bonding methods can be used, anodic bonding, direct bonding or the like.
  • direct bonding is particularly suitable since the highest strengths are achieved and thus a good hold of the needle on the first plate is ensured.
  • the nozzle structure 48 with annular gap 42 and precipitation agent bore 46 is produced in a two-stage etching process. In the first step, only the deeper precipitation agent hole is advanced. In the second step, both structures are then finished etched.
  • the individual spinnerets are cut out of the wafer by suitable separation methods, such as wafer sawing or laser processing.
  • a hollow fiber spinneret 10 for producing a hollow fiber coextruded from two layers is shown.
  • a hollow-fiber spinneret 10 with a main body 100 consisting of three individual plates 102, 104 and 106 is shown.
  • the individual plates in turn consist of monocrystalline silicon.
  • a feed channel 108 is excluded for the precipitant.
  • feed channels 110, 112 for a first polymer are provided, which open into an associated homogenization zone 114.
  • the equalization zone 114 surrounds a corresponding needle stump 116.
  • a precipitant hole 118 is also excluded, which is surrounded by a further needle stub 120 and an annular space 122. Furthermore, further feed channels 124 with subsequent homogenization zone 126 are excluded in the second plate 104. Finally, the third plate points 106 two annular gaps 128 and 130 for the respective polymeric materials to be coextruded, and a needle 132 with precipitant well bore 134.
  • the supply channels 124 are each configured differently. While in the embodiment according to the FIG. 3a the feed channel 124 for the second polymer is provided only in the second plate 104, which runs in the variant according to the FIG. 3b both through the second plate 104 as well as through the third plate 106.
  • the second polymer feed passage 124 extends through the second plate 104 and the first plate 102 as shown in FIG Figure 3c shown.
  • the representation according to FIG. 5 corresponds to the section according to FIG. 3a , wherein it is clear here that 8 feed channels 112 are arranged in a star shape, while only 4 feed channels 124 are arranged in a cross shape.
  • the three plates 102, 104 and 106 are in turn connected to the main body 100 by a suitable bonding method, advantageously direct bonding. Otherwise corresponds to the manufacturing method for the hollow fiber spinneret 10 according to the Figures 3 and 5 , analogous to that, as already stated by the FIG. 2 and 4 was explained in detail.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Claims (16)

  1. Procédé pour fabriquer une filière à fibre creuse comprenant un corps de base avec les étapes de procédé suivantes:
    - structuration d'au moins deux corps en forme de plaque par technique de microstructure
    - assemblage d'au moins deux corps en forme de plaque en un corps de base dans lequel un ou plusieurs canaux d'arrivée d'agent de précipitation/agent de soutien et canaux d'arrivée de mélange et au moins une structure de filière reliée à ces canaux avec au moins une ouverture de sortie de mélange et au moins une aiguille avec perçage pour agent de précipitation/agent de soutien sont réalisés.
  2. Procédé pour fabriquer une filière à fibre creuse selon la revendication 1, la filière à fibre creuse étant fabriquée à partir de deux corps en forme de plaque présentant les étapes de procédé suivantes:
    - structuration d'un premier corps en forme de plaque par technique de microstructure,
    - application d'un second corps en forme de plaque non structuré sur le premier corps structuré en forme de plaque pour former le corps de base de la filière à fibre creuse et
    - structuration du second corps en forme de plaque par technique de microstructure.
  3. Procédé pour fabriquer une filière à fibre creuse selon la revendication 1, la filière à fibre creuse étant fabriquée à partir de trois corps en forme de plaque avec les étapes de procédé suivantes:
    - structuration d'un premier corps en forme de plaque par technique de microstructure,
    - application d'un second corps non structuré en forme de plaque sur le premier corps structuré en forme de plaque,
    - structuration du second corps en forme de plaque par technique de microstructure.
    - application d'un troisième corps non structuré en forme de plaque sur le second corps structuré en forme de plaque pour la formation du corps de base de la filière à fibre creuse et
    - structuration du troisième corps en forme de plaque par technique de microstructure.
  4. Procédé pour fabriquer une filière à fibre creuse selon la revendication 1 ou 2, le corps de base étant constitué de deux corps en forme de plaque et les canaux d'arrivée de mélange, une zone d'uniformisation de flux de mélange, le perçage pour l'arrivée d'agent de précipitation/agent de soutien et un bout d'aiguille étant formés dans le premier corps en forme de plaque au moyen de la structuration et la structure de filière avec la fente annulaire pour le mélange comme ouverture de sortie de mélange et l'aiguille avec perçage pour agent de précipitation/agent de soutien étant formées au moyen de la structuration du second corps en forme de plaque.
  5. Procédé pour fabriquer une filière à fibre creuse selon la revendication 1 ou 2, le corps de base étant constitué de deux corps en forme de plaque et le perçage pour agent de précipitation/agent de soutien étant formé au moyen de la structuration du premier corps en forme de plaque et les canaux d'arrivée de mélange, une zone d'uniformisation de flux de mélange, la structure de filière avec fente annulaire pour le mélange comme ouverture de sortie de mélange et l'aiguille avec perçage pour agent de précipitation/agent de soutien étant formés au moyen de la structuration du second corps en forme de plaque.
  6. Procédé pour fabriquer une filière à fibre creuse selon la revendication 3, le corps de base étant constitué de trois corps en forme de plaque et les canaux d'arrivée de mélange, une zone d'uniformisation de flux de mélange, le perçage pour agent de précipitation/agent de soutien et un bout d'aiguille étant formés au moyen de la structuration du premier corps en forme de plaque et les canaux d'arrivée de mélange, une zone d'uniformisation de flux de mélange, un espace annulaire et un autre bout d'aiguille étant formés au moyen de la structuration du second corps en forme de plaque et la structure de filière avec deux fentes annulaires pour le mélange comme ouverture de sortie de mélange et l'aiguille avec perçage pour agent de précipitation/agent de soutien étant formées au moyen de la structuration du troisième corps en forme de plaque.
  7. Procédé pour fabriquer une filière à fibre creuse selon l'une quelconque des revendications 1 à 6, le premier corps en forme de plaque étant structuré des deux côtés.
  8. Procédé pour fabriquer une filière à fibre creuse selon l'une quelconque des revendications précédentes, la structuration d'au moins un corps en forme de plaque des au moins deux corps en forme de plaque comprenant les étapes suivantes:
    - fabrication d'un masque de lithographie avec un procédé de lithographie standard,
    - décapage de la structuration par gravure ionique réactive ou gravure ionique réactive en profondeur ou cryodécapage.
  9. Procédé pour fabriquer une filière à fibre creuse selon la revendication 8, caractérisé en ce que le procédé de décapage est conçu comme procédé à deux niveaux, en particulier le perçage plus profond pour agent de précipitation est formé au moins en partie dans une première étape et le perçage pour agent de précipitation et la structure de filière avec fente annulaire sont achevés dans une seconde étape consécutive.
  10. Procédé pour fabriquer une filière à fibre creuse selon la revendication 7 ou 8, les masques de lithographie pour le côté avant et le côté arrière du premier corps en forme de plaque étant orientés visuellement les uns vers les autres.
  11. Procédé pour fabriquer une filière à fibre creuse selon l'une quelconque des revendications précédentes, au moins un corps en forme de plaque de la filière à fibre creuse étant à base de silicium monocristallin, d'arséniure de gallium ou de germanium.
  12. Procédé pour fabriquer une filière à fibre creuse selon l'une quelconque des revendications précédentes, les corps en forme de plaque étant reliés par procédé de bonding, en particulier par bonding anodique ou bonding direct.
  13. Procédé pour fabriquer une filière à fibre creuse selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins deux tranches rondes sont prévues comme corps en forme de plaque, sur lesquels en même temps plusieurs structures de filière sont fabriquées, pour la fabrication d'une filière à fibre creuse à partir d'au moins deux corps en forme de plaque par technique de microstructure.
  14. Procédé pour fabriquer une filière à fibre creuse selon la revendication 13, caractérisé en ce que les plusieurs structures de filière sont divisées sur la tranche en filières à fibre creuse individuelles.
  15. Procédé pour fabriquer une filière à fibre creuse selon la revendication 13, caractérisé en ce qu'une filière à fibre creuse individuelle présente une unique structure de filière ou plusieurs structures de filière dans un assemblage de structure de filière.
  16. Procédé selon l'une quelconque des revendications 14 ou 15, caractérisé en ce que le procédé de séparation de la tranche s'effectue par sciage de la tranche ou traitement au laser.
EP09008291A 2002-03-13 2003-02-13 Méthode pour la manufacture d'un filière à fibres de bois Expired - Lifetime EP2112256B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10211052A DE10211052A1 (de) 2002-03-13 2002-03-13 Hohlfaser-Spinndüse
EP03706500A EP1483435B1 (fr) 2002-03-13 2003-02-13 Filiere de fibres creuses

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP03706500A Division EP1483435B1 (fr) 2002-03-13 2003-02-13 Filiere de fibres creuses
EP03706500.0 Division 2003-02-13

Publications (2)

Publication Number Publication Date
EP2112256A1 EP2112256A1 (fr) 2009-10-28
EP2112256B1 true EP2112256B1 (fr) 2010-12-22

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EP03706500A Expired - Lifetime EP1483435B1 (fr) 2002-03-13 2003-02-13 Filiere de fibres creuses
EP09008291A Expired - Lifetime EP2112256B1 (fr) 2002-03-13 2003-02-13 Méthode pour la manufacture d'un filière à fibres de bois

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EP03706500A Expired - Lifetime EP1483435B1 (fr) 2002-03-13 2003-02-13 Filiere de fibres creuses

Country Status (12)

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US (2) US7393195B2 (fr)
EP (2) EP1483435B1 (fr)
JP (1) JP4340161B2 (fr)
KR (1) KR100974985B1 (fr)
AT (2) ATE492666T1 (fr)
AU (1) AU2003208849A1 (fr)
BR (1) BR0307233A (fr)
CA (1) CA2474274C (fr)
DE (3) DE10211052A1 (fr)
ES (2) ES2329564T3 (fr)
HR (1) HRP20040714B1 (fr)
WO (1) WO2003076701A1 (fr)

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WO2023036919A1 (fr) 2021-09-10 2023-03-16 Oceansafe Ag Fibre

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US8875653B2 (en) 2012-02-10 2014-11-04 Palo Alto Research Center Incorporated Micro-extrusion printhead with offset orifices for generating gridlines on non-square substrates
CN103668484A (zh) * 2013-12-19 2014-03-26 吴江明敏制衣有限公司松陵分公司 散射纤维喷丝板
CN103911678B (zh) * 2014-04-17 2016-04-13 华中科技大学 一种用于电流体喷印的同轴喷嘴
CN103981581B (zh) * 2014-05-29 2016-05-04 苏州东茂纺织实业有限公司 一种仿天然纤维熔丝装置
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CN106236323B (zh) * 2016-08-05 2017-11-17 浙江大学 一种具有接触性引导功能的神经导管及其制备方法和装置
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US10889915B2 (en) 2018-01-31 2021-01-12 Saudi Arabian Oil Company Producing fibers using spinnerets
DE102019203837A1 (de) 2019-03-20 2020-09-24 Fresenius Medical Care Deutschland Gmbh Anlage und Verfahren zur Herstellung von Hohlfasermembranen
US20230008772A1 (en) * 2021-07-08 2023-01-12 University Of Kentucky Research Foundation Spinneret, blowing system and method for producing hollow fibers

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104775171A (zh) * 2015-03-30 2015-07-15 临邑大正特纤新材料有限公司 孔藕状纤维纺丝组件
WO2023036919A1 (fr) 2021-09-10 2023-03-16 Oceansafe Ag Fibre

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JP4340161B2 (ja) 2009-10-07
EP1483435A1 (fr) 2004-12-08
ES2329564T3 (es) 2009-11-27
US8490283B2 (en) 2013-07-23
US7393195B2 (en) 2008-07-01
US20050087637A1 (en) 2005-04-28
KR100974985B1 (ko) 2010-08-09
BR0307233A (pt) 2004-12-07
ATE492666T1 (de) 2011-01-15
HRP20040714B1 (en) 2012-07-31
AU2003208849A1 (en) 2003-09-22
JP2005520061A (ja) 2005-07-07
US20080268082A1 (en) 2008-10-30
ATE441742T1 (de) 2009-09-15
HRP20040714A2 (en) 2005-08-31
CA2474274A1 (fr) 2003-09-18
EP1483435B1 (fr) 2009-09-02
DE10211052A1 (de) 2003-10-23
EP2112256A1 (fr) 2009-10-28
DE50311868D1 (de) 2009-10-15
DE50313356D1 (de) 2011-02-03
ES2357373T3 (es) 2011-04-25
WO2003076701A1 (fr) 2003-09-18
CA2474274C (fr) 2011-11-29
KR20040094722A (ko) 2004-11-10

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