EP0455193A1 - Fil de multifilaments entrelacés à partir de filaments individuels de haut-module et procédé de fabrication d'un tel fil - Google Patents

Fil de multifilaments entrelacés à partir de filaments individuels de haut-module et procédé de fabrication d'un tel fil Download PDF

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Publication number
EP0455193A1
EP0455193A1 EP91106917A EP91106917A EP0455193A1 EP 0455193 A1 EP0455193 A1 EP 0455193A1 EP 91106917 A EP91106917 A EP 91106917A EP 91106917 A EP91106917 A EP 91106917A EP 0455193 A1 EP0455193 A1 EP 0455193A1
Authority
EP
European Patent Office
Prior art keywords
yarn
individual filaments
modulus
high modulus
filaments
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.)
Granted
Application number
EP91106917A
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German (de)
English (en)
Other versions
EP0455193B1 (fr
Inventor
Josef Geirhos
Ingolf Dr. Jacob
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.)
Invista Technologies SARL Switzerland
Original Assignee
Hoechst AG
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Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of EP0455193A1 publication Critical patent/EP0455193A1/fr
Application granted granted Critical
Publication of EP0455193B1 publication Critical patent/EP0455193B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04Blended or other yarns or threads containing components made from different materials
    • D02G3/047Blended or other yarns or threads containing components made from different materials including aramid fibres
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/165Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam characterised by the use of certain filaments or yarns
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S57/00Textiles: spinning, twisting, and twining
    • Y10S57/908Jet interlaced or intermingled
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913Rod, strand, filament or fiber
    • Y10T428/2922Nonlinear [e.g., crimped, coiled, etc.]
    • Y10T428/2924Composite
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913Rod, strand, filament or fiber
    • Y10T428/2973Particular cross section
    • Y10T428/2976Longitudinally varying

Definitions

  • the invention relates to a method for producing a multifilament yarn with a total denier of 500-4000 dtex, preferably 700-3000 dtex, in which at least part of the yarn consists of high-modulus individual filaments of an initial module of more than 50 GPa, preferably more than 80 GPa which method the yarn is swirled by a swirling medium, in particular air, and such a multifilament yarn.
  • Such high modulus yarns made from liquid crystalline or special high polymers with less flexible chains such as e.g. Aramid, carbon and glass are generally very stiff.
  • the conventional method of air interlacing, such as is used, for example, to increase the thread closure or to mix with other yarn components leads to considerable difficulties, especially with a high degree of interlacing, because the individual filaments are difficult to intermingle due to their rigidity and tend to break due to their brittleness , which results in a significant reduction in the fineness-related maximum tensile strength (fineness strength).
  • fineness strength fineness strength
  • the thread closure of these yarns is then insufficient, and because of the large number of breaks in the individual filaments, it is not possible to produce a smooth, lint-free yarn.
  • a strong air turbulence of such high modulus yarns therefore does not lead to results that are acceptable in practice.
  • the present invention is intended to create a method for producing a high-modulus multifilament yarn and such a multifilament yarn which has a high thread closure and is as smooth and lint-free as possible.
  • a reduction in the fineness-related maximum tensile force due to the intermingling should be avoided as far as possible.
  • a method with the features specified at the outset is characterized in that the intermingling is carried out at a temperature of (0.25-0.9) T s , in which T s is the melting or decomposition temperature of the high-modulus individual filaments , measured in ° C.
  • the multifilament yarn is characterized in that the average intermingling distance of the yarn, measured in the needle test (using the ROTHSCHLLD ENTANGLEMENT TESTER 2050), is less than 150 mm and the number of breaks in the individual filaments, measured in the light barrier method on one side of the yarn, is less than 20 /damn.
  • the intermingling basic patent US 29 85 995 already contains the general note that the intermingling of yarns can be carried out at elevated temperature and that, in particular when the yarn tension is too high and / or the intermingling medium pressure is too low, a certain plasticization of the yarn by moistening and / or heating favors the turbulence.
  • This idea is taken up in US Pat. Nos. 30 69 836 and 30 83 523, in which yarns made of polyester or polyamide are interlaced with heated air in order to produce yarns with particularly low shrinkage.
  • EP-PS 01 64 624 a polyester yarn is swirled with heated air so that the yarn can be wound up in the heated state.
  • DD-PS 240 032 describes the production of a yarn made of polyamide, polyester or polyolefin, in which the yarn is treated in a thread-closing device with steam or moist hot air in order to obtain a silk that can be easily wound up.
  • the present invention is based on the finding that, in the case of particularly high-modulus multifilament yarns, warm intermingling, in contrast to cold intermingling, has practically no reduction in the fineness-related maximum tensile force and can even lead to an increase in the maximum tensile force.
  • the invention succeeded for the first time in producing a strongly intermingled multifilament yarn with a starting modulus of more than 50 GPa, which has a high thread closure has, smooth and practically lint-free and its fineness-related maximum tensile strength is not or not significantly less than that of the non-interlaced yarn.
  • the yarn is expediently interlaced so strongly that the average interlacing distance of the yarn, measured in the needle test, is less than 150 mm, preferably less than 70 mm or 50 mm.
  • Conventional swirl nozzles can be used for swirling.
  • the swirl distance or swirl density is primarily determined by the pressure of the swirl medium and the special nozzle type. Therefore, in order to achieve a desired swirl distance, a corresponding swirl pressure must be selected for a specific nozzle type.
  • the working pressure is expediently in the range from 1 to 10 bar, preferably 1.5 to 8 bar and in particular 2 to 4 bar.
  • the fluidization temperature is preferably (0.5-0.9) T s , in particular (0.7-0.8) T s .
  • the fluidization temperature is expediently in the range of 200-360 ° C, preferably at 300 ° C. In the case of carbon, the fluidization temperature should be between 200 ° and 500 ° C, preferably between 300 ° and 500 ° C.
  • the swirl temperature is 300 ° -600 ° C, preferably 300 ° -500 ° C.
  • the high-modulus individual filaments can be warmed to the swirl temperature before the swirling, the heating being able to be carried out by means of godets, heating surfaces, heating pipes, radiant heating under pre-tensioning or hot air. If the entire yarn consists of the high-modulus individual filaments, the intermingling medium can also be heated to the intermingling temperature.
  • the invention can be used not only with single-component yarns, but also with so-called commingled yarns, in which only part of the yarn is made from the high-modulus individual filaments and the other part is made from thermoplastic Individual filaments of a lower initial module exist.
  • commingled yarn is explained, for example, in chemical fibers / textile industry (industrial textiles), 39/91, T 185 (1989). In this case, only the high-modulus individual filaments are preheated to the fluidization temperature, while the lower melting thermoplastic individual filaments are not preheated and the fluidization medium is not heated.
  • thermoplastic single filaments with a lower initial modulus come e.g. PEEK (polyether ether ketone), PEI (polyether imide), PET (polyethylene terephthalate) and PPS (polyphenylene sulfide) in question.
  • PEEK polyether ether ketone
  • PEI polyether imide
  • PET polyethylene terephthalate
  • PPS polyphenylene sulfide
  • the multifilament yarn produced according to the invention is characterized in that the number of breaks in the individual filaments is less than 20 per meter.
  • the number of breaks is preferably even less than 10 / m and can even be almost zero, in particular less than 3 / m and very particularly preferably less than 0.1 / m.
  • the breaks of the individual filaments are measured by the usual light barrier method, which detects the broken ends of the individual filaments protruding from one side of the yarn (for example with a Shirley Hairiness Meter, Shirley Institute, Manchester).
  • the fineness-related maximum tensile force is significantly higher than when the yarn is cold-swirled. On the one hand, this may be due to the lower number of breaks in the individual filaments and, on the other hand, in a more advantageous alignment of the individual filaments. If it is a one-component yarn that consists of the high-modulus individual filaments, the fineness-related maximum tensile strength of the interlaced yarn should be at least 80% of that of the non-interlaced yarn. It is often even possible to achieve a fineness-related maximum tensile strength of at least 90% and in certain cases more than 100% of that of the non-interlaced yarn.
  • the invention leads to an increase in fineness-related maximum tensile force compared to cold-twisted yarns.
  • the commingled yarns are also characterized by high thread closure and great smoothness, which can even make the yarns suitable for weaving.
  • FIGS. 1-5 diagrams in which the relationship between the fineness-related maximum tensile strength (fineness strength) and the warm intermingling provided according to the invention is shown for aramid multifilament yarns;
  • FIGS. 6 and 7 are diagrams which, for glass and carbon multifilament yarns, show the relationship between the tenacity and the warm intermingling provided according to the invention
  • FIG. 8 shows a diagram in which the tenacity of single-component yarns and commingled yarns according to the invention is shown.
  • FIG. 1 shows the tenacity (in cN / tex) of a commercially available aramid yarn, the dashed curve a being for a yarn with a twist Z100 and curve b being for an untwisted yarn examined for experimental purposes.
  • the left ends of the two curves refer to the non-swirled feed yarn, while the middle of the curves apply to a cold-swirled yarn and the right ends of the curves to a yarn according to the invention, which was swirled after preheating to 300 ° C.
  • the fineness of strength drops considerably in the case of cold swirling, while it is essentially retained in the case of the warm swirling provided according to the invention.
  • the intermingling distance (in mm) of the yarn is shown, which in the case of the cold-twisted yarn is 32 mm and in the case of warm-twisted yarn is 19 mm.
  • the diagram in FIG. 2 shows the relationship between the tenacity and the intermingling temperature, specifically for another commercial aramid yarn with twist Z100.
  • the tenacity increases with the turbulence temperature.
  • the swirl distance is largely independent of the swirl temperature.
  • the diagram in FIG. 3 shows the relationship between the tenacity and different types of heating for the aramid yarn used in FIG.
  • the yarn was preheated to 300 ° C with godet or preheated to 300 ° C or 400 ° C with hot air, and as another option, the interlacing air was heated to 300 ° C.
  • This diagram also makes it clear that the fineness of strength drops significantly in the case of cold swirling, while it remains practically the same or increases in the case of the warm swirling provided according to the invention.
  • the diagram in FIG. 4 also shows the elongation (in%, curve II) for the aramid yarn used in FIG.
  • the four breakpoints of the two curves apply to the non-swirled feed yarn without twist, the non-swirled feed yarn with twist Z100 and the warm-twirled yarn with and without twist. With this yarn too, the warm interlacing leads to a certain increase in the tenacity, while the elongation remains almost constant.
  • FIG. 5 shows a series of measurements corresponding to curve I in FIG. 4 in the form of a bar diagram for a further commercially available aramid yarn. It can be seen in the diagram that the swirling according to the invention does not lead to a decrease in strength. It can also be seen that when the yarns are twisted (non-intermingled and intermingled) there is an increase in strength occurs, which is larger in the interlaced yarn than in the non-interlaced yarn.
  • the diagram in FIG. 6 shows the tenacity of a multifilament yarn made of glass, which was present once as an untreated master yarn, then as a cold-twisted yarn and finally as a warm-twisted yarn.
  • the yarn was preheated with hot air, once to 300 ° C and the other to 600 ° C.
  • the swirl pressure was 1.0 bar in each case.
  • the cold interlacing leads to a significant reduction in the tenacity, while it is maintained or increased during the warm interlacing.
  • FIG. 8 shows the tenacity for intermingled and non-intermingled single-component yarns of different materials as well as for various commingled yarns.
  • the cross-hatched columns apply to non-interlaced yarns made of aramid, carbon, glass or PEEK.
  • the cross-hatched columns apply to warm-twisted yarns made from the same materials.
  • the columns shaded with dashed lines apply to commingled yarns made of aramid, carbon or glass, to which PEEK has been added.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Inorganic Fibers (AREA)
EP91106917A 1990-04-30 1991-04-29 Fil de multifilaments entrelacés à partir de filaments individuels de haut-module et procédé de fabrication d'un tel fil Expired - Lifetime EP0455193B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4013946 1990-04-30
DE4013946A DE4013946A1 (de) 1990-04-30 1990-04-30 Verwirbeltes multifilamentgarn aus hochmodul-einzelfilamenten und verfahren zum herstellen eines solchen garnes

Publications (2)

Publication Number Publication Date
EP0455193A1 true EP0455193A1 (fr) 1991-11-06
EP0455193B1 EP0455193B1 (fr) 1994-06-29

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ID=6405493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91106917A Expired - Lifetime EP0455193B1 (fr) 1990-04-30 1991-04-29 Fil de multifilaments entrelacés à partir de filaments individuels de haut-module et procédé de fabrication d'un tel fil

Country Status (9)

Country Link
US (2) US5293676A (fr)
EP (1) EP0455193B1 (fr)
JP (1) JPH04228641A (fr)
AT (1) ATE107974T1 (fr)
DE (2) DE4013946A1 (fr)
DK (1) DK0455193T3 (fr)
ES (1) ES2057651T3 (fr)
IE (1) IE65104B1 (fr)
PT (1) PT97516A (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP0801159A2 (fr) * 1996-04-09 1997-10-15 Hoechst Trevira GmbH & Co. KG Fils hybrides à faible retrait, méthode pour sa fabrication et son utilisation

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DE4013946A1 (de) * 1990-04-30 1991-10-31 Hoechst Ag Verwirbeltes multifilamentgarn aus hochmodul-einzelfilamenten und verfahren zum herstellen eines solchen garnes
DK0717133T3 (da) * 1994-12-16 2001-04-23 Hoechst Trevira Gmbh & Co Kg Hybridgarn og deraf fremstillet skrumpedygtigt og skrumpet, permanent deormerbart tekstilmateriale samt fremstilling og anvendelse deraf
KR0168621B1 (ko) * 1996-03-28 1999-01-15 백보현 신합성사 및 이의 제조방법
AR010847A1 (es) * 1997-01-20 2000-07-12 Rhone Poulenc Filtec Ag TEJIDO TÉCNICO EN PARTICULAR, PARA BOLSAS DE AIRE, Y METODO PARA LA FABRICACIoN DEL HILO DE FILAMENTO PARA EL TEJIDO.
JP3722323B2 (ja) * 1997-02-14 2005-11-30 東レ株式会社 炭素繊維とその製造方法および製造装置
US6127035A (en) * 1998-12-03 2000-10-03 Carter; H. Landis Low dielectric composite fiber and fabric
SE518438C2 (sv) * 1999-09-01 2002-10-08 Sca Hygiene Prod Ab Förfarande för hydroentangling av polymerfibrer och hydroentanglat tyg innefattande polymerfibrer
US6583075B1 (en) * 1999-12-08 2003-06-24 Fiber Innovation Technology, Inc. Dissociable multicomponent fibers containing a polyacrylonitrile polymer component
GB2357520B (en) * 1999-12-21 2004-04-28 Du Pont Airbag fabrics made from high denier per filament yarns
US6602600B2 (en) * 2000-12-22 2003-08-05 E. I. Du Pont De Nemours And Company Yarn and fabric having improved abrasion resistance
US6715191B2 (en) * 2001-06-28 2004-04-06 Owens Corning Fiberglass Technology, Inc. Co-texturization of glass fibers and thermoplastic fibers
US20040000132A1 (en) * 2002-06-28 2004-01-01 Zo-Chun Jen Manufacturing method for elastic fiber having fur-like touch, elastic fiber having fur-like touch made from the same, and fabric woven by said fiber
US20040168479A1 (en) * 2003-02-28 2004-09-02 Mcmurray Brian Highly resilient multifilament yarn and products made therefrom
WO2005090662A2 (fr) * 2004-03-18 2005-09-29 Diolen Industrial Fibers B.V. Procede de melange de fils continus
KR101185206B1 (ko) 2009-06-29 2012-09-21 코오롱인더스트리 주식회사 아라미드 공기교락사 및 그 제조방법
US8474115B2 (en) * 2009-08-28 2013-07-02 Ocv Intellectual Capital, Llc Apparatus and method for making low tangle texturized roving
CA2844463A1 (fr) * 2013-11-26 2015-05-26 Nygard International Partnership Pantalons
TWI663311B (zh) * 2014-04-29 2019-06-21 Low & Bonar B. V. 乙烯地板覆蓋物用之載體材料及包含其之複合材料產品

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US3958310A (en) * 1973-03-05 1976-05-25 Rhone-Poulenc-Textile Method for interlacing filaments of multifilament yarns
US4519200A (en) * 1983-08-22 1985-05-28 Eastman Kodak Company Textile yarns with loops and free protruding ends
EP0164624B1 (fr) * 1984-05-23 1988-04-13 E.I. Du Pont De Nemours And Company Procédé continu de fabrication de fils entrelacés en polyester
EP0344650A2 (fr) * 1988-06-01 1989-12-06 Barmag Ag Procédé de fabrication d'un fil multifilamentaire inorganique

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DE4013946A1 (de) * 1990-04-30 1991-10-31 Hoechst Ag Verwirbeltes multifilamentgarn aus hochmodul-einzelfilamenten und verfahren zum herstellen eines solchen garnes

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958310A (en) * 1973-03-05 1976-05-25 Rhone-Poulenc-Textile Method for interlacing filaments of multifilament yarns
US4519200A (en) * 1983-08-22 1985-05-28 Eastman Kodak Company Textile yarns with loops and free protruding ends
EP0164624B1 (fr) * 1984-05-23 1988-04-13 E.I. Du Pont De Nemours And Company Procédé continu de fabrication de fils entrelacés en polyester
EP0344650A2 (fr) * 1988-06-01 1989-12-06 Barmag Ag Procédé de fabrication d'un fil multifilamentaire inorganique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0801159A2 (fr) * 1996-04-09 1997-10-15 Hoechst Trevira GmbH & Co. KG Fils hybrides à faible retrait, méthode pour sa fabrication et son utilisation
EP0801159A3 (fr) * 1996-04-09 1998-09-16 Hoechst Trevira GmbH & Co. KG Fils hybrides à faible retrait, méthode pour sa fabrication et son utilisation
US5879800A (en) * 1996-04-09 1999-03-09 Hoechst Trevira Gmbh & Co Kg Low -shrinkage hybrid yarns production thereof and use thereof
US6109016A (en) * 1996-04-09 2000-08-29 Hoechst Trevira Gmbh & Co. Kg Low-shrinkage hybrid yarns production thereof and use thereof

Also Published As

Publication number Publication date
DE4013946A1 (de) 1991-10-31
EP0455193B1 (fr) 1994-06-29
US5424123A (en) 1995-06-13
PT97516A (pt) 1993-07-30
IE65104B1 (en) 1995-10-04
IE911436A1 (en) 1991-11-06
ATE107974T1 (de) 1994-07-15
ES2057651T3 (es) 1994-10-16
DE59102054D1 (de) 1994-08-04
US5293676A (en) 1994-03-15
DK0455193T3 (da) 1994-11-07
JPH04228641A (ja) 1992-08-18

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