EP0742851B1 - Spinnbalken zum spinnen einer mehrzahl von synthetischen fäden und spinnanlage mit einem derartigen spinnbalken - Google Patents
Spinnbalken zum spinnen einer mehrzahl von synthetischen fäden und spinnanlage mit einem derartigen spinnbalken Download PDFInfo
- Publication number
- EP0742851B1 EP0742851B1 EP95940123A EP95940123A EP0742851B1 EP 0742851 B1 EP0742851 B1 EP 0742851B1 EP 95940123 A EP95940123 A EP 95940123A EP 95940123 A EP95940123 A EP 95940123A EP 0742851 B1 EP0742851 B1 EP 0742851B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spinning
- blast
- connections
- air
- pump
- 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
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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
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/06—Distributing spinning solution or melt to spinning nozzles
-
- 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
- D01D1/00—Treatment of filament-forming or like material
- D01D1/06—Feeding liquid to the spinning head
-
- 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
- D01D5/08—Melt spinning methods
-
- 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
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
Definitions
- the invention relates to a spinning beam for spinning a Multiple synthetic threads and a spinning system with one such a spinning beam.
- a spinning beam for spinning a plurality of synthetic threads, in which the spinneret plates are arranged in a row is known from EP-163 248 B (Bag. 1416).
- a spinning system with such a spinning beam is known, for example, from DE-PS 24 38 364 (Bag. 905) and DE-OS 41 03 990 (Bag. 1811) or the unpublished DE 195 13 941 A1.
- the arrangement of the spinneret plates in a row results in a large longitudinal extension of the spinning system.
- a spinning beam according to the preamble of claim 1 and a spinning system with such a spinning beam according to claim 2 are known from EP 0 285 736 B1. This makes it possible to spin an even larger number of threads in a system that is as compact as possible, and in particular to avoid non-uniform heat losses which can lead to non-uniformity of the threads.
- the solution for the spinning beam results from claim 1.
- the solution for a spinning system according to claim 2 results from the characteristic of Claim 2.
- the spinning beam according to claim 1 has the advantage that all spinnerets housed in a single heating box are, the length of the heating box is limited such that there are no temperature differences along its length can and that each row of spinnerets each have a multiple spinning pump assigned. This results in particular also the advantage of greater flexibility, as in the event of a malfunction on one of the pumps not the entire spinning system except Must be put into operation.
- the spinning system according to claim 2 has the advantage that you blow box can be interpreted so narrow that it is between two There is space for a row of nozzles in a close arrangement.
- the Blow boxes are independent of each other and by two separate ones Blowers are supplied with blown air (claim 3).
- Blowers are supplied with blown air (claim 3).
- Is particularly cheap even with an arrangement of two parallel rows of nozzles if below these rows of nozzles and between them two of the same type Blow boxes are provided back to back by a common partition are separated from each other (claim 6).
- blow boxes designed according to claim 7 are, because this version is particularly space-saving and through they have a good heat balance and a good heat equalization the blowing air flowing out of the blowing walls over the entire Length and width of the spinning system is guaranteed.
- blow boxes are in the direction of flow narrow substantially wedge-shaped so that essentially the same amount of blown air flows out and uneven degradation the air pressure in the flow direction is avoided.
- the wedge-shaped In particular, training can only involve one Extend part of the blow box.
- Such a narrowing the blow box in the direction of the nozzle rows can be advantageous Way with a wedge-shaped in horizontal cross section Cross section of the air distribution chamber - starting from the Air supply duct up and / or down - be connected, wherein the latter is known per se, for example, from US Pat. No. 3,999,910 is.
- the execution of the spinning system according to the invention has opposite the prior art in particular the advantage that both sides of the spinning beam or the spinning system independently of one another can be operated, e.g. with different throughputs and even operated or shutdown independently can be, if special operational requirements require this or make it appear expedient.
- the spinning beam is formed by the two side plates 2 and 3 and the top plate 4 and the bottom parts 8.
- the side plates 2 and 3 are U-shaped in profile. there the horizontal U-webs 5 and 6 form part of the top or underside of the spinning beam 1.
- the top plate 4 also has a U-shaped cross-sectional profile. It extends over the entire length of the spinning beam 1. It points over its length at least two holes in their base plate, which for For mounting and welding one pump connection plate each 11 serve. This will be discussed later.
- the top plate 4 is with its side webs 7 with the side webs 5th the side plates 2 and 3 welded.
- On the one facing up Base of the profile is a multiple pump 12 on each of the Pump connection plates 11 attached pressure-tight.
- Any multiple pump 12 is driven by a pump shaft (drive shaft) 13.
- the multiple pump 12 is a gear pump, in which a melt flow is fed through melt line 23 and distributed over several pump chambers and then on a plurality of distribution lines 14 is distributed.
- the melting line 23 is heated by a heating jacket 15. It connects the Melt source (e.g. extruder not shown) with the Spinning beam 1.
- a melt feed line 23 leads into the spinning beam 1 Melt feed line 23 penetrates the base side of the top plate 4 and is then connected to a distributor piece 25.
- a distributor piece 25 Of the Distributor 25 from distributes the melt to the melt distribution lines 26, each of which is a pump connection plate 11 one of the pumps 12 leads.
- a pump connection plate 11 By doing Example with a total of twelve spinnerets 18 are two pump connection plates 11 and two multiple pumps 12 are provided.
- the Pump connection plates 11 are each centered over six nozzles 18.
- Through the melt distribution line 26 is the multiple pumps 12 of the melt stream supplied, which then through the pumps 12 is distributed to 6 distribution lines 14 each.
- Each a manifold 14 leads to a spinneret 18 by opens into the nozzle pot 17 via the channel 28.
- nozzle pots 17 are identical are. Rectangular nozzle pots are possible in horizontal section.
- two sub-plates 8 have a cross-sectional profile U-shaped.
- the U-webs 16 of the lower plate point downwards and are at the bottom with the Side webs 6 of the side plates 2, 3 welded.
- the distance between the lower plates 8 is closed by a plate 10.
- the base of each sub-plate 8 has several holes on, which are arranged at equal intervals, for. B. six Holes.
- Terminal plates 9 are inserted into these holes and welded to the lower plate 8.
- Each of the connection plates 9 protrudes with a connector 20 in the U-shaped mouth Lower plate 8.
- the connector 20 has on its circumference Thread 19 on. With this thread, the nozzle pot 17, the has a corresponding counter thread on its inner circumference, screwed.
- a spinneret 18 inserted in the bottom of the nozzle pot 17 in the bottom of the nozzle pot 17 in the bottom of the nozzle pot 17 .
- a piston 21 is movable in the nozzle cup 17. This piston 21 is through a round seal 22 which the supply line 28 surrounds, opposite the lower connector 20 of the Connection plate 9 sealed.
- On its the nozzle plate 18th the side facing the piston 21 is covered by a membrane 24 sealed.
- the melt line 28 penetrates the piston 21 and the membrane 24 in the middle. In the depressurized state the membrane 24 on the piston 21 with a slight biasing force and presses it against the lower end face by means of the sealing ring 22 of the connector 20 of the connecting plate 9.
- the nozzle package present in the nozzle pot 17 is therefore preferably self-sealing.
- the Spinning beam 1 thus two rows of nozzles 181, 182, consisting of six nozzles each 18.
- the rows of nozzles are small Spaced from each other.
- Each row of nozzles is 181, 182 each assigned to a pump 12.
- the pump 12 is located approximately in the middle over each row (see Fig. 2).
- the two pumps will in particular from a common melt supply line 23 fed.
- the melt flow is in each case six distribution lines 14 distributed.
- the distribution lines have the same length and therefore need to be more or less great detour.
- the distance between the two Row of nozzles is selected so that the distributor lines 14 do not hinder each other.
- the melt feed line 23 is by a not shown Loaded extruder.
- the spinning beam 1 itself is with a heating medium, for. B. diphyl vapor, fed.
- a total of twelve threads can be spun with the spinning beam 1 which consist of a large number of filaments.
- a cooling device 29 is arranged.
- the cooling device is a flat, vertical cuboid, which runs along the rows of nozzles extends.
- the cooling device is vertical standing divider 30 divided diagonally. This creates it two blow boxes 31 and 32.
- the front wall 33 of each blow box 31, 32, which each one of the nozzle rows 181, 182 and the emerging from the filaments is permeable to air and designed and designated as a blowing wall 33.
- Air chambers 34 and 35 which have an air slot 36 on the end faces are each connected to the blow box 31 or 32.
- the Louvre 36 extends essentially over the entire Blow box height.
- Each of the air chambers 34, 35 is connected to one Air connection 37 connected from below into the air chamber 34, 35 opens.
- the air chamber extends essentially over the total height of the blow box, so that its cross section decreases steadily, as shown in Figure 2. It can do that be accomplished that each of the blow box 31, 32 facing away from side wall 38 is arranged obliquely so that the air chamber 34, 35 is essentially conical upwards approaches (Fig. 2). But it can also - what is not shown here the side walls 39 (FIG. 3) be inclined so that the air chamber 34, 35 over their Tapered length from bottom to top. This is in Figure 1 indicated by thin lines.
- the blow walls 33 an exhaust wall 40 opposite. This is also about a porous wall.
- the outlet wall 40 has the same dimensions as the blowing wall 33 and with this through side walls 41 to one so-called "cooling shaft" 42 connected.
- chutes 43 are connected to the cooling shaft on.
- the chutes 43 are designed as tubes. Every thread A tube is assigned to the one in front of the corresponding one Outlet opening 44 is set for the respective thread.
- the air lines 37 are used to cool the filaments or threads fed with blown air by means of a blower (not shown).
- the air enters the air chambers 34, 35 and through the Louvre 36 in the two blowing chambers 31 and 32 through the diagonal plate 30 are separated.
- the air chambers 34 and 35 ensure that the air has even pressure distribution within the air chambers, so that over the entire height of the louver 36 a uniform Airflow is guaranteed. Due to the diagonal separation of the Blow chambers 31 and 32, respectively, from their respective air inlet 36th taper from, it is achieved that the same here Pressure conditions arise and thus one over the entire Width of the blow box ensures uniform air flow is.
- the two air lines 37 also can be supplied with blown air by separate blowers, which independent of each other in terms of throughput and pressure level can be adjusted.
- the bobbins can be on the bobbin one or two winding machines. Since the Threads spun with a single spinning beam and with uniform Cooling conditions have cooled, it is ensured that even this large number of threads are completely identical to one another Has properties.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Description
Durch die Anordnung der Spinndüsenplatten in einer Reihe ergibt sich eine große Längserstreckung der Spinnanlage.
Dadurch ist es möglich, eine noch größere Anzahl von Fäden in einer möglichst kompakten Anlage zu erspinnen und insbesondere ungleichförmige Wärmeverluste zu vermeiden, die zu Ungleichmäßigkeiten der Fäden führen können.
- Fig. 1
- einen Querschnitt durch eine Spinnanlage;
- Fig. 2
- einen Längsschnitt durch eine Spinnanlage;
- Fig. 3
- die Untersicht unter eine Spinnanlage;
- 1
- Spinnbalken
- 2
- Seitenplatte
- 3
- Seitenplatte
- 4
- Oberplatte
- 5
- U-Steg
- 6
- U-Steg
- 7
- U-Steg
- 8
- Unterplatte
- 9
- Anschlußplatte
- 10
- Platte
- 11
- Pumpenanschlußplatte
- 12
- Mehrfachpumpe
- 13
- Antriebswelle
- 14
- Schmelzezuleitung, Verteilerleitung
- 15
- Doppelmantel
- 16
- U-Stege
- 17
- Düsentopf
- 18
- Düse, Spinndüse
- 19
- Gewinde
- 20
- Verbindungsstück, Anschluß
- 21
- Kolben
- 22
- Dichtring
- 23
- Schmelzeleitung, Schmelzezuleitung
- 24
- Membran
- 25
- Schmelzeverteiler, Verteilerstück
- 26
- Schmelzeverteilerleitung
- 27
- Anschlußplatte
- 28
- Kanal
- 29
- Kühleinrichtung
- 30
- Blech, Trennwand
- 31
- Blaskasten
- 32
- Blaskasten
- 33
- Blaswand
- 34
- Luftkammer
- 35
- Luftkammer
- 36
- Luftschlitz
- 37
- Luftleitung
- 38
- Seitenwand
- 39
- Seitenwand
- 40
- Ausblaswand
- 41
- Seitenwand
- 42
- Kühlschacht
- 43
- Fallschacht
- 44
- Auslaßöffnung
- 181
- Spinndüsenreihe
- 182
- Spinndüsenreihe
Claims (6)
- Spinnbalken zum Spinnen einer Mehrzahl synthetischer Fäden,
welcher die Form eines langgestreckten Quaders hat und beheizbar ist;
mit einer Mehrzahl an der Unterseite des Spinnbalkens (1) angebrachten Anschlüssen (20) für jeweils einen Düsentopf (17) mit einer Düsenplatte (18), wobei die Anschlüsse (20) in zwei parallelen Reihen (181, 182) in Längsrichtung des Spinnbalkens (1) angeordnet sind;
und mit zumindest einer Pumpe (12), welche an einer Schmelzeleitung (23) angeschlossen ist und welche mit den Anschlüssen (20) verbunden ist,
dadurch gekennzeichnet, daß
jeder Reihe (181, 182) von Anschlüssen (20) eine Mehrfachspinnpumpe (12) mit einer angeschlossenen Mehrzahl von Verteilerleitungen (14) zugeordnet ist, welche Mehrfachspinnpumpe (12) einen Schmelzestrom auf mehrere Pumpenkammern verteilt und in die Verteilerleitungen (14) speist, die zu den dieser Reihe zugeordneten Anschlüssen (20) führen. - Spinnanlage zum Spinnen einer Mehrzahl synthetischer Fäden
mit einem Spinnbalken (1) nach Anspruch 1, welcher die Form eines langgestreckten Quaders hat und beheizbar ist;
mit einer Mehrzahl an der Unterseite des Spinnbalkens (1) angebrachten Anschlüssen (20) für jeweils einen Düsentopf (17) mit einer Düsenplatte (18), wobei die Anschlüsse (20) in zwei parallelen Reihen (181, 182) in Längsrichtung des Spinnbalkens (1) angeordnet sind;
und mit einer quaderförmigen Kühleinrichtung (29) unterhalb und zwischen den beiden Reihen (181, 182) von Düsenplatten (18), welche Kühleinrichtung (29) jeweils eine Blaswand (33) aufweist, die einer der Reihen zugewandt ist,
dadurch gekennzeichnet, daß
die quarderförmige Kühleinrichtung (29) in zwei kongruente Blaskästen (31, 32) geteilt ist und daß jeder Reihe (181, 182) von Düsenplatten (18) einer der Blaskästen (31,32) mit einer der Blaswände (33) zugeordnet ist. - Spinnanlage nach Anspruch 2,
dadurch gekennzeichnet, daß
jeder Blaskasten (31, 32) an einem eigenen Luftzufuhrkanal (37) angeschlossen ist, und daß jeder der Luftzufuhrkanäle (37) unabhängig von dem anderen hinsichtlich Druckhöhe und/oder Luftdurchsatz durch je eine einstellbare Drossel oder je ein einstellbares Gebläse Steuerbar ist. - Spinnanlage nach Anspruch 3,
dadurch gekennzeichnet, daß
jeder Blaskasten (31, 32) an einer seiner Stirnwände (Lufteinlaßseite) einen Lufteinlaß (36) besitzt, der sich im wesentlichen über die gesamte Höhe des Blaskastens erstreckt, und daß der jeweiligen Stirnwand des Blaskastens (31) mit dem Lufteinlaß (36) eine Luftverteilerkammer (34) vorgesetzt ist, die den Luftzuführkanal (37) aufweist. - Spinnanlage nach einem der Ansprüche 2 bis 4,
dadurch gekennzeichnet, daß
die beiden Blaskästen (31, 32) so ausgeführt sind, daß sich ihre vertikalen Querschnitte stetig, zumindest über eine Teillänge in Strömungsrichtung, von dem Lufteinlaß (36) aus bis zu ihrem gegenüberliegenden Ende verengen. - Spinnanlage nach Anspruch 2,
dadurch gekennzeichnet, daß
die beiden Blaskästen (31, 32) eine gemeinsame Zwischenwand haben.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4442946 | 1994-12-02 | ||
DE4442946 | 1994-12-02 | ||
DE4445837 | 1994-12-22 | ||
DE4445837 | 1994-12-22 | ||
PCT/DE1995/001705 WO1996017116A1 (de) | 1994-12-02 | 1995-12-01 | Spinnbalken zum spinnen einer mehrzahl von synthetischen fäden und spinnanlage mit einem derartigen spinnbalken |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0742851A1 EP0742851A1 (de) | 1996-11-20 |
EP0742851B1 true EP0742851B1 (de) | 2002-04-03 |
Family
ID=25942509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95940123A Expired - Lifetime EP0742851B1 (de) | 1994-12-02 | 1995-12-01 | Spinnbalken zum spinnen einer mehrzahl von synthetischen fäden und spinnanlage mit einem derartigen spinnbalken |
Country Status (6)
Country | Link |
---|---|
US (1) | US5922362A (de) |
EP (1) | EP0742851B1 (de) |
KR (1) | KR100427421B1 (de) |
CN (1) | CN1064724C (de) |
DE (1) | DE59510143D1 (de) |
WO (1) | WO1996017116A1 (de) |
Cited By (1)
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WO2009053243A1 (de) | 2007-10-23 | 2009-04-30 | Oerlikon Textile Gmbh & Co. Kg | Verfahren und vorrichtung zur herstellung eines mehrfarbigen verbundfadens |
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US5935512A (en) * | 1996-12-30 | 1999-08-10 | Kimberly-Clark Worldwide, Inc. | Nonwoven process and apparatus |
DE19924838A1 (de) * | 1999-05-29 | 2000-11-30 | Lurgi Zimmer Ag | Spinnvorrichtung zum Verspinnen schmelzflüssiger Polymere und Verfahren zum Beheizen der Spinnvorrichtung |
DE10258261A1 (de) * | 2002-12-13 | 2004-06-24 | Saurer Gmbh & Co. Kg | Spinnbalken |
US7014442B2 (en) * | 2002-12-31 | 2006-03-21 | Kimberly-Clark Worldwide, Inc. | Melt spinning extrusion head system |
JP4380264B2 (ja) * | 2003-08-25 | 2009-12-09 | カシオ計算機株式会社 | 接合基板及び基板の接合方法 |
DE10355542A1 (de) * | 2003-11-27 | 2005-06-23 | Saurer Gmbh & Co. Kg | Spinnanlage |
DE10355294A1 (de) * | 2003-11-27 | 2005-06-23 | Saurer Gmbh & Co. Kg | Spinnanlage |
WO2005098098A1 (de) * | 2004-04-10 | 2005-10-20 | Saurer Gmbh & Co. Kg | Verfahren und vorrichtung zum schmelzspinnen mehrerer multifiler fäden |
ITMI20041137A1 (it) * | 2004-06-04 | 2004-09-04 | Fare Spa | Apparecchiatura per il trattamento di filati sintetici |
KR20070113311A (ko) * | 2005-03-19 | 2007-11-28 | 엘리콘 텍스타일 게엠베하 운트 코. 카게 | 다수의 합성사를 용융 방사하기 위한 장치 |
DE102007030677B4 (de) | 2007-07-02 | 2009-05-07 | W. Müller GmbH | Mehrfachextrusionskopf |
DE102010050394A1 (de) * | 2009-11-06 | 2011-05-12 | Oerlikon Textile Gmbh & Co. Kg | Vorrichtung zum Abkühlen einer Vielzahl synthetischer Fäden |
CN102869819B (zh) * | 2010-03-24 | 2015-08-12 | 欧瑞康纺织有限及两合公司 | 用于熔纺和冷却许多合成丝线的方法和装置 |
EP2665849B1 (de) * | 2011-01-22 | 2014-10-22 | Oerlikon Textile GmbH & Co. KG | Vorrichtung zum abkühlen einer vielzahl synthetischer fäden |
DE112012000995A5 (de) * | 2011-02-24 | 2013-12-19 | Oerlikon Textile Gmbh & Co. Kg | Vorrichtung zum Schmelzspinnen |
CN102776591B (zh) * | 2012-08-11 | 2015-02-04 | 张家港欣欣高纤股份有限公司 | 保温箱体中的挡风板 |
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CN106811808B (zh) * | 2017-03-24 | 2023-02-24 | 江苏恒科新材料有限公司 | 一种生产细旦丝的双排环吹纺丝箱体设备及其制作方法 |
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IT1227263B (it) * | 1988-10-03 | 1991-03-28 | Filteco Spa | Apparecchiatura e metodo di filatura per estrusione |
DE4103990A1 (de) * | 1990-02-17 | 1991-08-22 | Barmag Barmer Maschf | Blaskammer einer spinnanlage |
US5145689A (en) * | 1990-10-17 | 1992-09-08 | Exxon Chemical Patents Inc. | Meltblowing die |
DE19513941A1 (de) * | 1994-04-21 | 1995-10-26 | Barmag Barmer Maschf | Spinnanlage für einen synthetischen Faden |
IT1276034B1 (it) * | 1994-11-10 | 1997-10-24 | Barmag Barmer Maschf | Traversa di filatura per la filatura di una pluralita' di fili sintetici e procedimento per la sua produzione |
TW311945B (de) * | 1994-11-23 | 1997-08-01 | Barmag Barmer Maschf |
-
1995
- 1995-12-01 DE DE59510143T patent/DE59510143D1/de not_active Expired - Lifetime
- 1995-12-01 US US08/687,396 patent/US5922362A/en not_active Expired - Fee Related
- 1995-12-01 EP EP95940123A patent/EP0742851B1/de not_active Expired - Lifetime
- 1995-12-01 CN CN95191463A patent/CN1064724C/zh not_active Expired - Fee Related
- 1995-12-01 WO PCT/DE1995/001705 patent/WO1996017116A1/de active IP Right Grant
- 1995-12-01 KR KR1019960704177A patent/KR100427421B1/ko not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009053243A1 (de) | 2007-10-23 | 2009-04-30 | Oerlikon Textile Gmbh & Co. Kg | Verfahren und vorrichtung zur herstellung eines mehrfarbigen verbundfadens |
Also Published As
Publication number | Publication date |
---|---|
CN1139960A (zh) | 1997-01-08 |
KR100427421B1 (ko) | 2004-08-04 |
CN1064724C (zh) | 2001-04-18 |
KR970700790A (ko) | 1997-02-12 |
US5922362A (en) | 1999-07-13 |
DE59510143D1 (de) | 2002-05-08 |
EP0742851A1 (de) | 1996-11-20 |
WO1996017116A1 (de) | 1996-06-06 |
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