EP1678354B1 - Tete a filer et dispositif filtre pour une tete de filage - Google Patents

Tete a filer et dispositif filtre pour une tete de filage Download PDF

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Publication number
EP1678354B1
EP1678354B1 EP04765866A EP04765866A EP1678354B1 EP 1678354 B1 EP1678354 B1 EP 1678354B1 EP 04765866 A EP04765866 A EP 04765866A EP 04765866 A EP04765866 A EP 04765866A EP 1678354 B1 EP1678354 B1 EP 1678354B1
Authority
EP
European Patent Office
Prior art keywords
filter
filter ring
melt
spinning head
ring elements
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.)
Ceased
Application number
EP04765866A
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German (de)
English (en)
Other versions
EP1678354A1 (fr
Inventor
Andreas May
Stefan Becker
Markus Reichwein
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Oerlikon Textile GmbH and Co KG
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 Oerlikon Textile GmbH and Co KG filed Critical Oerlikon Textile GmbH and Co KG
Publication of EP1678354A1 publication Critical patent/EP1678354A1/fr
Application granted granted Critical
Publication of EP1678354B1 publication Critical patent/EP1678354B1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/10—Filtering or de-aerating the spinning solution or melt
    • D01D1/106—Filtering
    • 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

Definitions

  • the invention relates to a spinner for melt-spinning a plurality of synthetic filaments according to the preamble of claim 1 and to a filter device for a spinner according to the preamble of claim 12.
  • a generic spinning head and a generic filter device are from the EP 1 093 535 B1 known.
  • the known spinner When extruding polymer melts, the melt is filtered before passing through a plurality of nozzle bores of a nozzle plate within the spinner.
  • the known spinner has a filter device which contains a cylindrical filter ring element.
  • the filter ring element is formed by a support tube and a filter jacket surrounding the support tube, wherein the support tube and the filter jacket are joined together to form a sealing edge at the support ends.
  • the filter ring element is held in a self-sealing manner within the spinning head by a distributor piece, wherein the melt stream flows through the filter jacket distributed from outside to inside over the circumference of the filter ring element.
  • Such spinning heads and filter devices have proven successful in spinning synthetic fibers for textile applications. However, in terms of melt throughput and service life, natural limits exist that make limited use of melt fiber spinning synthetic fibers for large melt flow technical applications.
  • Spinning heads with filter devices are known, which are based on an annular filter element, wherein the filter elements have a U-shaped or V-shaped cross-section.
  • filter devices have the disadvantage that the filter elements are not can be held self-sealing in the spinning head, so that a special sealing effort when using the known filter device is essential.
  • the invention is based on the object to provide a spinner head of the type mentioned with the greatest possible filter capacity while avoiding the disadvantages mentioned.
  • a further object of the invention is to provide a filter device suitable in particular for high melt throughputs, which is suitable for self-sealing assembly in a spinner head.
  • the object according to the invention is achieved in that a separate second filter ring element is provided, which has a smaller diameter than the filter ring element (9) and is arranged at a distance from the outer first filter ring element and from inside to outside can be flowed through, wherein between the two filter ring elements, an annular discharge space is formed and wherein the annular discharge space between the two filter ring elements is arranged.
  • the object of the invention is achieved in that the filter ring element at a distance a second filter ring element is associated with a smaller diameter, which is flowed through by a partial flow of the melt stream from the inside out, that the support ends of the filter ring elements are formed into concentric sealing edges and that both Filter ring elements have a substantially equal rigidity.
  • the inventive arrangement and design of the two filter ring elements has the consequence that a uniform, homogenized melt stream for melt spinning at high melt throughput rates is achieved.
  • Each of the filter ring elements is flowed through very evenly.
  • the nested design of the filter ring elements also leads to a compact design. Due to the substantially equal rigidity of the filter ring elements a common fixation within the spinner head without the risk of local leaks is possible.
  • the distributor ring includes a distributor head, which bears in each case at an upper support end of the filter ring elements, and a distributor collar, which projects into the discharge space between the filter ring elements.
  • a self-sealing arrangement of the filter device within the spinning head of the distribution ring is kept movable.
  • the distributor ring is thus particularly suitable for, on the one hand, to form a seal between the distributor head and the upper support ends of the filter ring elements for sealing off the discharge space from the melt inlet and, on the other hand, for To increase the stability of the filter ring elements to ensure radial support.
  • the distributor collar on both sides on its circumference distributed on a plurality of webs, which bear against the filter ring elements.
  • a holding plate arranged between the inlet plate and the nozzle plate is provided, by which a support of the lower support ends of the filter ring elements is formed.
  • the holding plate above the support has an annular distribution chamber in which the filter ring elements are held.
  • an optimized melt supply to the individual filter ring elements can be performed.
  • the melt supply from the melt inlet to the distribution chamber can advantageously be effected by an outer annular channel and an inner annular channel which forms between the distributor ring and the retaining plate at the opposite support end of the filter ring elements.
  • the retaining plate can also be used to distribute the melt after exiting the discharge chamber to the individual nozzle bores of the nozzle plate.
  • at least one distributor groove is formed on the underside of the retaining plate.
  • the distributor groove can be widened by further partial grooves to form a groove system, so that both annular and circular nozzle bore arrangements in the nozzle plate can be uniformly supplied with a melt.
  • the filter ring elements are preferably formed by a respective support cylinder with wall-side fluid passages and a filter jacket.
  • the outer support cylinder is connected to the outer filter casing and the inner support cylinder with the inner filter jacket to each unit.
  • the fluid passages introduced in the support cylinder on the wall side can influence the desired rigidity.
  • the size and the number of fluid passages may be formed differently in both filter ring elements.
  • the outer filter jacket and the inner filter jacket are preferably formed by a pleated filter material in order to obtain the largest possible filter surface.
  • the pleated filter material can be advantageously formed as a wire mesh or a nonwoven.
  • a first embodiment of the spinning head according to the invention is shown schematically in a longitudinal sectional view.
  • the spinning head has a cylindrical housing 1. At the bottom of the housing 1, an inner housing collar 7 is formed. On the housing collar 7 is guided inside the housing 1 nozzle plate 5.
  • the nozzle plate 5 has on its underside a plurality of nozzle bores 6, which are connected by nozzle channels 35 with the top of the nozzle plate 5.
  • an internal thread 8 is formed, through which an inlet plate 2 is guided within the housing 1.
  • the inlet plate 2 has a centrally formed melt inlet 3, which is connected to a melt line, not shown here.
  • the melt inlet 3 is connected via inlet channels 23 with the underside of the inlet plate 2.
  • a filter device 4 is formed within the housing 1, through which the inlet channels 23 formed in the inlet plate 2 are connected to the nozzle channels 35 of the nozzle plate 5.
  • a holding plate 17 is arranged between the inlet plate 2 and the nozzle plate 5.
  • the inlet plate 2 is inserted into the housing 1 such that the sealing gaps between the nozzle plate 5 and the holding plate 17 and between the inlet plate 2 and the holding plate 17 are sealed.
  • an annular distribution chamber 18 is formed, which is connected via a passage 32 with a distribution groove 19 on the underside of the holding plate 17.
  • the passage 32 is also annular.
  • the holding plate 17 consists of an outer and an inner half. Symmetrical to the passage 32 is a first, outer filter ring element 9 and a second, inner filter ring element 10 are arranged within the distribution chamber 18. The structure of the filter ring elements 9 and 10 will be described in more detail below.
  • the outer filter ring element 9 and the inner filter ring element 10 are cylindrical and spaced apart.
  • a distribution ring 12 at an upper support end 15 is a distribution ring 12 at.
  • the distributor ring 12 is formed by the distributor head 13 formed outside the filter ring elements 9 and 10 and the distributor collar 14 protruding between the filter ring elements 9 and 10.
  • the distributor ring 12 is supported on the upper side of the holding plate 17 to the opposite inlet plate 2 by a spring member 25.
  • the distributor head 13 extends substantially over the entire opening cross section of the distribution chamber 18 within the holding plate 17, wherein on the inner periphery of the distributor head 13 between the holding plate 17 and the distributor ring 12 formed inner annular channel 21 and on the outer peripheral side of the distributor head 13 a between the distribution ring 12 and the holding plate 17 formed outer annular channel 20 are arranged.
  • an inlet chamber 22 is formed on the underside of the inlet plate 2, in which the inlet channels 23 open.
  • the inlet chamber 22 is connected to the distribution chamber 18, which is divided by the filter ring elements 9 and 10 in an outer and an inner half.
  • a discharge chamber 11 is formed, wherein the lower support ends 16 of the filter ring elements 9 and 10 are supported on the holding plate 17 at the lower end of the distribution chamber 18.
  • the distribution collar 14 of the distributor ring 12 projecting into the discharge space 11 has on its inner and outer longitudinal sides in each case a plurality of webs 24, through which the filter ring elements 9 and 10 are radially supported.
  • a melt of a polymer is supplied under pressure to the spinning head via the melt inlet 3.
  • the melt passes through the inlet channels 23 in the inlet chamber 22.
  • From the inlet chamber 22 enters a portion of the melt stream flow through the outer ring channel 20 in the outer half of the distribution chamber 18 and a second part of the stream of melt flow through the inner ring channel 21 in the inner Half of the distribution chamber 18.
  • a resultant compressive force is generated on the distributor ring 12, which presses the distributor ring 12 in the direction of the nozzle plate 5.
  • the lower support end 16 of the filter ring elements 9 and 10 is pressed against the support of the holding plate 17 and the upper support end 15 against the underside of the distributor head 13.
  • the formed on the support ends 15 and 16 sealing edges thus lead to a seal between the distribution chamber 18 and the discharge chamber eleventh
  • the filter ring elements 9 and 10 are flowed through evenly. In this case acts on the outer filter ring element 9 from the outside of the distribution chamber 18 inwardly in the direction of the discharge chamber 11 flowing partial flow.
  • an opposite partial flow which flows from the inside out of the distribution chamber 18 in the direction of the discharge chamber 11, acts on the inner filter ring element 10.
  • the partial flows are brought together via the distributor collar 14 and guided via the passage 32 into the distributor groove 19. From the distributor groove 15, the melt passes into the nozzle channels 35 to be extruded through the nozzle bores 6 as a plurality of synthetic filaments.
  • the filter ring elements 9 and 10 may be formed according to the following embodiment.
  • FIGS. 2 and 3 a filter device according to the invention for a spinning head is shown schematically in several views. This shows Fig. 2 schematically a longitudinal section and Fig. 3 schematically a cross section. As far as no Express reference is made to one of the figures, the following description applies to both figures.
  • the filter device has an outer filter ring element 9 and a smaller diameter inner filter ring element 10.
  • the two filter ring elements 9 and 10 are selected in diameter such that between the filter ring elements 9 and 10, a sufficient distance to form a discharge space 11 is formed.
  • the fixation and assignment of the filter ring elements 9 and 10 is preferably achieved by a distributor ring 12.
  • the distributor ring 12 is in the FIGS. 2 and 3 shown in dashed lines. However, the assignment and fixation of the filter ring elements in FIGS. 9 and 10 can also be achieved by other equivalent means.
  • the outer filter ring element 9 is formed by a support cylinder 26 and a support jacket 26 enclosing the filter jacket 29.
  • the support cylinder 26 and the filter jacket 29 are joined together at the upper support end 15 and at the lower support end 16 and each form a circumferential sealing edge 31.
  • the support cylinder 26 has a plurality of fluid passages 27.
  • Such a filter ring element is for example from the EP 1 093 535 known, so that reference can be made at this point.
  • the filter jacket 29 is preferably formed by a pleated filter material.
  • the inner filter ring element 10 is identical to the outer filter ring element 9 constructed with the only difference that on the support cylinder 28, an inner filter casing 30 is disposed
  • the inner filter casing 30 and the support cylinder 28 are also at the support ends 15 and 16 to a respective sealing edge 31st together. With reference to the above, further explanation of the inner filter ring member 10 can be omitted.
  • the formation of the fluid passages 27 in the support cylinders 26 and 28 are selected in particular with regard to a substantially uniform axial rigidity of the filter ring elements 9 and 10. However, it is also possible to equalize an axial stiffness, the wall thickness of the support cylinders 26 and 28, taking into account the fluid passages 27 to vary.
  • the support cylinders 26 and 28 are supported by the distributor ring 12.
  • the distributor ring 12 at its between the support cylinders 26 and 28 cross-collar on both sides of a plurality of webs 24 which bear against the support cylinders 26 and 28.
  • the space between the webs 24 forms the discharge space eleventh
  • FIGS. 2 and 3 Filter device shown is thus suitable to merge two partial melt streams after filtration.
  • an outer partial melt stream can be conducted from outside to inside and an inner partial melt stream can be conducted from the inside to the outside.
  • the sealing edges 31 formed on the support ends 15 and 16 ensure a self-sealing insert inside the spinning head.
  • Fig. 4 is a further embodiment of a spinning head according to the invention shown schematically in a longitudinal section.
  • the components of the same function were identified by identical reference numerals.
  • Fig. 4 is substantially identical to the previous embodiment according to Fig. 1 so that only the differences are explained at this point.
  • a nozzle plate 5 is arranged on the underside, which has a circular arrangement of nozzle bores 6.
  • the holding plate 17 has an annular distribution chamber 18, which via a Passage 32 is connected to the underside of the retaining plate 17.
  • the passage 32 is in this case designed by a plurality of bores formed in a circular arrangement, so that the holding plate consists of one part.
  • the filter ring elements 9 and 10 are symmetrical to the passage 32 through a distributor ring 12 arranged at the upper support end 15.
  • the distributor ring 12 is formed here by a distribution collar 14 and a plate-shaped distributor head 13.
  • an inlet chamber 22 is formed in the inlet plate 6, which is connected by an outer annular channel 20 and by a plurality of inlet channels 36 with the outer and inner half of the distribution chamber 18.
  • the distributor plate 33 is arranged, which has a plurality of distribution grooves 19 and distributor bores 34.
  • the groove and bore system within the distributor plate 33 is exemplary.
  • the discharged from the discharge chamber 11 through the passage 32 melt is evenly distributed to the nozzle channels 35 of the nozzle plate 5.
  • the spinning head according to the invention can also be advantageously formed with the variants in which no self-sealing but a sealing of the filter device produced by, for example, clamping forces is produced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Claims (16)

  1. Tête de filage pour le filage à chaud d'une pluralité de filaments synthétiques avec un boîtier (1) destiné à recevoir une plaque d'entrée (2) avec une arrivée de bain fondu (3) et un corps de filière (5) avec plusieurs orifices de filière (6) et avec un dispositif de filtre (4) disposé entre la plaque d'entrée (2) et le corps de filière (5), qui présente un élément annulaire de filtre cylindrique (9) traversé de l'extérieur vers l'intérieur, caractérisée en ce qu'il est prévu un deuxième élément annulaire de filtre séparé (10), qui présente un diamètre plus petit que l'élément annulaire de filtre (9) et est disposé à distance du premier élément annulaire de filtre placé à l'extérieur (9) et qui peut être traversé de l'intérieur vers l'extérieur, dans laquelle une chambre de distribution annulaire (11) est formée entre les deux éléments annulaires de filtre (9, 10), dans laquelle cette chambre de distribution annulaire (11) est disposée entre les deux éléments annulaires de filtre (9, 10).
  2. Tête de filage selon la revendication 1, caractérisée en ce qu'un anneau de répartition (12) est associé aux éléments annulaires de filtre (9, 10), qui repose par une tête de répartition (13) respectivement sur une extrémité d'appui supérieure (15) des éléments annulaires de filtre (9, 10) et qui pénètre par un collet de répartition (14) entre les éléments annulaires de filtre (9, 10).
  3. Tête de filage selon la revendication 2, caractérisée en ce que la tête de répartition (13) et les extrémités d'appui supérieures (15) des éléments annulaires de filtre (9, 10) forment un joint étanche de la chambre de distribution (11) par rapport à l'arrivée de bain fondu (3).
  4. Tête de filage selon la revendication 2 ou 3, caractérisée en ce que le collet de répartition (14) présente, sur les côtés tournés vers les éléments annulaires de filtre (9, 10), plusieurs nervures (24) destinées au soutien radial des éléments annulaires de filtre (9, 10).
  5. Tête de filage selon l'une quelconque des revendications précédentes, caractérisée en ce qu'il est prévu une plaque de support (17) disposée entre la plaque d'entrée (2) et le corps de filière (5), qui forme un appui des extrémités d'appui inférieures (16) des éléments annulaires de filtre (9, 10).
  6. Tête de filage selon la revendication 5, caractérisée en ce que la plaque de support (17) présente au-dessus de l'appui une chambre de répartition annulaire (18), dans laquelle les éléments annulaires de filtre (9, 10) sont maintenus, dans laquelle un canal annulaire extérieur (20) et un canal annulaire intérieur (21) sont formés entre la tête de répartition (13) et la plaque de support (17) à l'extrémité de la chambre de répartition (18), par lesquels la chambre de répartition (18) est reliée à l'arrivée de bain fondu (3).
  7. Tête de filage selon la revendication 5 ou 6, caractérisée en ce que la plaque de support (17) présente en dessous de l'appui une rainure de répartition (19), par laquelle la chambre de distribution (11) est reliée aux orifices de filière (6) du corps de filière (5).
  8. Tête de filage selon l'une quelconque des revendications 5 à 7, caractérisée en ce que la plaque de support (17) est réalisée en deux parties par une pièce partielle extérieure et une pièce partielle intérieure.
  9. Tête de filage selon l'une quelconque des revendications précédentes, caractérisée en ce que l'élément annulaire de filtre extérieur (9) est formé par un cylindre de soutien (26) avec des passages de fluide (27) à travers la paroi et une enveloppe de filtre extérieure (29), dans laquelle le cylindre de soutien (26) et l'enveloppe de filtre (29) sont réunis aux extrémités d'appui (15, 16).
  10. Tête de filage selon l'une quelconque des revendications 1 à 9, caractérisée en ce que l'élément annulaire de filtre intérieur (10) est formé par un cylindre de soutien (28) avec des passages de fluide (27) à travers la paroi et une enveloppe de filtre intérieure (30), dans laquelle le cylindre de soutien (28) et l'enveloppe de filtre (30) sont réunis aux extrémités d'appui (15, 16).
  11. Tête de filage selon l'une quelconque des revendications 1 à 10, caractérisée en ce que les éléments annulaires de filtre (9, 10) sont maintenus aux extrémités d'appui (15, 16) de manière auto-étanche entre l'anneau de répartition (12) et la plaque de support (17).
  12. Dispositif de filtre pour une tête de filage, dans lequel un courant de bain fondu est conduit de l'extérieur vers l'intérieur à travers un élément annulaire de filtre cylindrique (9) et dans lequel l'élément annulaire de filtre (9) est maintenu avec une extrémité d'appui supérieure (15) et une extrémité d'appui inférieure (16) de façon auto-étanche à l'intérieur de la tête de filage, caractérisé en ce qu'un deuxième élément annulaire de filtre (10) de plus petit diamètre est associé à distance à l'élément annulaire de filtre (9) et est traversé de l'intérieur vers l'extérieur par un courant partiel du courant de bain fondu, en ce que les extrémités d'appui (15, 16) des éléments annulaires de filtre (9, 10) sont réalisées sous forme d'arêtes d'étanchéité concentriques (31) et en ce que les deux éléments annulaires de filtre (9, 10) présentent une rigidité de valeur essentiellement égale et forment une chambre de distribution annulaire, dans lequel cette chambre de distribution annulaire (11) est disposée entre les deux éléments annulaires de filtre (9, 10).
  13. Dispositif de filtre selon la revendication 12, caractérisé en ce que les éléments annulaires de filtre (9, 10) sont formés respectivement par un cylindre de soutien (16, 28) avec des passages de fluide (27) à travers la paroi et une enveloppe de filtre (29, 30), dans lequel le cylindre de soutien extérieur (26) est relié à l'enveloppe de filtre située à l'extérieur (29) et le cylindre de soutien intérieur (28) est relié à l'enveloppe de filtre située à l'intérieur (30).
  14. Dispositif de filtre selon la revendication 13, caractérisé en ce que l'enveloppe de filtre extérieure (29) et l'enveloppe de filtre intérieure (30) sont formées respectivement par un matériau de filtre plissé.
  15. Dispositif de filtre selon l'une quelconque des revendications 12 à 15, caractérisé en ce que les éléments annulaires de filtre (9, 10) sont combinés avec un anneau de répartition (12), qui présente un collet de répartition (14) pour soutenir les éléments annulaires de filtre (9, 10).
  16. Procédé pour le filage à chaud d'une pluralité de filaments synthétiques à partir d'un bain fondu de matière plastique, dans lequel on filtre le bain fondu avant l'extrusion, caractérisé en ce que l'on divise le bain fondu en deux courants partiels avant le filtrage, en ce que l'on filtre les courants partiels à travers deux éléments de filtre séparés et en ce que l'on réunit les courants partiels, avant l'extrusion, dans une chambre de distribution annulaire qui est disposée entre les deux éléments annulaires de filtre séparés.
EP04765866A 2003-10-21 2004-10-07 Tete a filer et dispositif filtre pour une tete de filage Ceased EP1678354B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003148766 DE10348766A1 (de) 2003-10-21 2003-10-21 Spinnkopf und Filtereinrichtung für derartigen Spulkopf
PCT/EP2004/011198 WO2005045104A1 (fr) 2003-10-21 2004-10-07 Tete a filer et dispositif filtre pour une tete de filage

Publications (2)

Publication Number Publication Date
EP1678354A1 EP1678354A1 (fr) 2006-07-12
EP1678354B1 true EP1678354B1 (fr) 2012-08-29

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Application Number Title Priority Date Filing Date
EP04765866A Ceased EP1678354B1 (fr) 2003-10-21 2004-10-07 Tete a filer et dispositif filtre pour une tete de filage

Country Status (5)

Country Link
EP (1) EP1678354B1 (fr)
CN (1) CN1863947B (fr)
DE (1) DE10348766A1 (fr)
TW (1) TWI368677B (fr)
WO (1) WO2005045104A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009014374A1 (de) * 2009-03-21 2010-09-23 Oerlikon Textile Gmbh & Co. Kg Spinnkopf
DE102014000305A1 (de) * 2014-01-10 2015-07-16 Oerlikon Textile Gmbh & Co. Kg Spinndüsenvorrichtung
CN108411387A (zh) * 2018-04-20 2018-08-17 中国纺织科学研究院有限公司 熔体纺丝设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985654A (en) * 1974-12-10 1976-10-12 Pall Corporation Filter assembly for fluid polymeric material
US4512731A (en) * 1981-07-09 1985-04-23 Celanese Corporation Apparatus and process for filtering molten polymer
DE10140581A1 (de) * 2001-08-18 2003-02-27 Neumag Gmbh & Co Kg Spinnvorrichtung

Also Published As

Publication number Publication date
EP1678354A1 (fr) 2006-07-12
CN1863947A (zh) 2006-11-15
TWI368677B (en) 2012-07-21
CN1863947B (zh) 2010-07-14
DE10348766A1 (de) 2005-06-02
TW200517534A (en) 2005-06-01
WO2005045104A1 (fr) 2005-05-19

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