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EP1732824B1 - Sachet tubulaire comprenant un corps et un fond integre par scellage - Google Patents

Sachet tubulaire comprenant un corps et un fond integre par scellage Download PDF

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Publication number
EP1732824B1
EP1732824B1 EP05707617A EP05707617A EP1732824B1 EP 1732824 B1 EP1732824 B1 EP 1732824B1 EP 05707617 A EP05707617 A EP 05707617A EP 05707617 A EP05707617 A EP 05707617A EP 1732824 B1 EP1732824 B1 EP 1732824B1
Authority
EP
European Patent Office
Prior art keywords
tubular
sealed
bag body
section
bag
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
EP05707617A
Other languages
German (de)
English (en)
Other versions
EP1732824A1 (fr
Inventor
Andreas Michalsky
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.)
Huhtamaki Ronsberg Zweigniederlassung der Huhtamaki Deutschland GmbH and Co KG
Original Assignee
Huhtamaki Ronsberg Zweigniederlassung der Huhtamaki Deutschland 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 Huhtamaki Ronsberg Zweigniederlassung der Huhtamaki Deutschland GmbH and Co KG filed Critical Huhtamaki Ronsberg Zweigniederlassung der Huhtamaki Deutschland GmbH and Co KG
Publication of EP1732824A1 publication Critical patent/EP1732824A1/fr
Application granted granted Critical
Publication of EP1732824B1 publication Critical patent/EP1732824B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/002—Flexible containers made from webs by joining superimposed webs, e.g. with separate bottom webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/262—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel to the direction of movement
    • B31B70/266—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel to the direction of movement involving gusset-forming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/36—Folding sheets, blanks or webs by continuously feeding them to stationary members, e.g. plates, ploughs or cores

Definitions

  • the invention relates to a tubular bag with a tubular bag body and a sealed bottom according to the preamble of claim 1 and claim 2, and a method for producing such a tubular bag according to claim 10 or claim 11.
  • Tubular bags of the type mentioned are used for some time for filling and packaging of solid, pasty and liquid ingredients. Due to their low weight, their generally cost-effective manufacturability and relatively easy disposability tube bags of the type mentioned are popular and have prevailed over other packaging made of glass, metal or cardboard in many areas. It is in this regard on the DE-U 202 14 197 directed.
  • tubular bags have some disadvantages that affect or limit their use in certain areas. These include, inter alia, a low stability, the disadvantage is particularly significant if the tubular bag is open, so that in case of falling over, or tipping over a leakage of the content is to be feared.
  • the object of the present invention is to provide a low-cost and easy-to-produce tubular bag that avoids material heterogeneity with respect to tubular bag body and floor and also has an increased recycling rate.
  • the object is achieved by a tubular bag with a tubular pouch body and a sealed bottom according to the preamble of claim 1, characterized in that the bottom a) consists of a tube section which is separated from the tube from which also the tubular pouch body is formed; and that b) points the fin-seal seal towards the tubular pouch body.
  • the object is achieved by a tubular bag with a tubular pouch body and a sealed bottom according to the preamble of claim 2, characterized in that the bottom a) consists of a tube section which is separated from the tube, from which also the tubular pouch body is formed ; and that b) has the fin seal seal outside the tubular pouch body.
  • the essential core of the invention is that to ensure cost-effective and easy manufacturability and good recyclability and a high recycling rate of the tubular bag according to the invention, the bottom of the tubular bag is made of a tube section, which consists of the same material as the tubular bag body itself in other words, that the bottom of the tubular bag and the tubular pouch body are made of a tube, wherein for the preparation of the bottom, a tube portion is separated from the tube.
  • the section forming the bottom of the tube is closed before separation or alternatively after separation on an open side by means of a fin-seal seal and then inserted under tension in the tubular pouch body so that the fin-seal seal points in the direction of tubular pouch body.
  • the tubular portion forming the bottom is inserted into the tubular pouch body such that the fin-seal sealing of the tubular portion faces outside the pouch body.
  • the tubular pouch body is placed from above on the quasi-cup-shaped, forming the bottom tube section, wherein the bottom forming the tube section preferably comes to rest within the tubular pouch body.
  • the tubular pouch body can also be inserted into the cup-shaped, the bottom forming tube section. At least portions of each mutually associated edges of the tubular pouch body and the tube portion are circumferentially sealed to each other of the tubular pouch.
  • the variant to provide the bottom forming tube section with a pointing to the outside of the tubular pouch body fin-seal seal has, compared to previously known bag bag flooring significant advantages. These are based on the one in that when filling the tubular bag or at a pressure build-up within the tubular bag outwardly invagination of the soil is no longer possible, since the soil in the variant according to the invention already allows a maximum expansion of the inner bag volume. On the other hand, the filling volume of the tubular bag is maximized with the same material consumption by this alternative inventive cup-shaped Schlauchabêtêtgestalt. This allows for easier filling of the tubular bag as well as greater variability in terms of the materials to be placed in the tubular bag.
  • the additional space achieved by this optimized configuration of the filling volume can be used as a possible expansion space for the filling of the tubular bag with an expansive filling material.
  • the enlarged tubular bag interior can also be provided directly with a correspondingly larger amount of contents.
  • the bottom portion forming tube section is formed from the same tube as the tubular bag body itself, is before the introduction of the sealed Hose section in the tubular pouch body a radial expansion of the tubular pouch body advantageous, which is carried out so that the expansion is recoverable. After the tube section having a sealed tube section end has been inserted sufficiently far into the tubular bag body, it is possible to return the tubular bag body so that it snugly fits around the sealed tube section.
  • the tube forming the bottom portion radially in a resettable manner slightly widened, so that an introduction of the tubular pouch body in the cup-shaped bottom tube section is possible. After introduction of the tubular pouch body of the cup-shaped bottom tube section is so far restored that a close contact between the bottom forming the tube section and the tubular pouch body is guaranteed.
  • Another important advantage resulting from the use of a cup-shaped tube section forming the bottom is that in this case no full-surface sealing of the mutually associated edges of the tube section and the tubular pouch body is necessary. Rather, it is sufficient if the edge of the tube section is sealed to the edge of the tubular pouch body in only one section. This is preferably located in a remote from the base edge portion of the bottom forming tube section.
  • the inner pressure of the filling material which acts on the wall of the tubular pouch ensures that the tubular pouch body engages tightly against the cup-shaped bottom tube section, which in turn results in the stability of the tubular pouch according to the invention elevated.
  • the bottom of the tubular bag according to the invention is thus formed by a two-layered near-bottom tubular bag section whose edges composed of the edge of the hose portion and the edge of the tubular pouch body. According to the invention, these two edges are sealed together in order to seal the tubular bag down in this way and moreover to provide a reinforced, particularly stable base section.
  • the bottom is sealed into the tubular pouch body by means of an inner-outer seal.
  • the fin-seal seal is formed by an inner-inner seal of the hose portion.
  • the tube section forming the bottom is compressed on its open side and sealed with the aid of ultrasound or thermal energy and thus closed.
  • the advantage of this embodiment lies in the ease of closing the tube section by simply squeezing and then sealing an inner-inner-sealable inner layer of the tube.
  • the fin-seal seal is formed by an outer-outer seal of the hose portion.
  • a part of the hose section to be subsequently sealed is first folded inwards and then closed in the manner of a fin-seal seal.
  • Such a barrier layer may be formed of ethylvinyl alcohol (EVOH), silicon dioxide (SiO 2 ) or an aluminum foil.
  • EVOH ethylvinyl alcohol
  • SiO 2 silicon dioxide
  • this barrier layer is provided both in the tubular pouch body and in the bottom of the tubular pouch.
  • the tubular bag body and the tube section are formed according to the invention from a tube which is either designed as a lap-seal or extruded tubular.
  • the cut edges of the tubular pouch body and the tubular portion are arranged so that they are not in contact with an interior of the tubular pouch, so that the cut edges of the filler material can not be attacked and in this way, for example, a barrier layer permanently obtains their barrier effect.
  • a barrier layer permanently obtains their barrier effect.
  • the sealed tube section end is compressed and / or angularly sealed.
  • This measure is advantageous in order to introduce a hose section end, which is widened by the formation of the aforementioned fin-seal seal in relation to the tubular bag body, into the tubular bag body in a good and tight fit with the fin-seal seal.
  • the fin-seal seal is compressed along its longitudinal extent, so that the sealed seam folded and / or curled present.
  • An alternative embodiment is to first fix the tube section to be sealed in the shape of the desired later diameter and then seal it.
  • Another alternative is an angular sealing of the corner areas of the fin-seal seal.
  • step c) the sealed tube section end is introduced into the tubular pouch body such that the sealed tube section end points outside the tubular pouch body.
  • step b) can be carried out before step a) or simultaneously with step a).
  • Fig. 1 shows a schematically illustrated procedure for producing a tubular bag 10 according to the invention, which is made of a tube.
  • the tube is sealed at a tube section end 80 by means of a fin-seal seal, with the ends of the tube being everted prior to sealing so that cut edges 60 face tube section 40.
  • the tube section 40 which is shown separated from the tubular pouch body 20 by a schematically illustrated section line 90, serves to produce the bottom 30.
  • Fig. 2 shows the bottom 30 forming tube section 40, which is now separated as a separate part.
  • the bottom 30 is first inserted into the tubular bag body 20 with the fin-seal 50, so that the tube section end 80 comes to lie in the interior 70 of the tubular bag 10. This is symbolized by the thick arrow in the middle of the figure.
  • Fig. 3 finally shows a schematic representation of a sealed bottom according to the invention 30.
  • the seals are schematically indicated by slashes.
  • the edge of the hose portion 100 is sealed to the edge of the tubular bag body 101.
  • an immediate abutment of the edge 100 of the tube section at the edge 101 of the tubular pouch body has been dispensed with. It is clearly too recognize that cut edges 60 of both the hose portion 40 and the tubular pouch body 20 are not in contact with the interior 70 of the tubular bag 10.

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  • Bag Frames (AREA)
  • Packages (AREA)
  • Making Paper Articles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Claims (18)

  1. Sachet tubulaire (10) comprenant un corps (20) et un fond intégré par scellage (30), notamment un fond qui permet au sachet de tenir vertical, dans lequel le fond (30) est inséré sous contrainte de tension dans le corps (20) du sachet tubulaire et présente un scellage à bords repliés ('fin scal') (50),
    caractérisé en ce que
    le fond (30)
    a) se compose d'un tronçon tubulaire (40) qui est découpé dans le tube constituant également le corps (20) du sachet tubulaire ; et en ce que
    b) le scellage à bords repliés (50) est disposé en regard du corps (20) du sachet tubulaire.
  2. Sachet tubulaire (10) comprenant un corps (20) et un fond intégré par scellage (30), notamment un fond qui permet au sachet de tenir vertical, dans lequel le fond (30) est inséré sous contrainte de tension dans le corps (20) du sachet tubulaire et présente un scellage à bords repliés ('fin scal') (50),
    caractérisé en ce que
    le fond (30)
    c) se compose d'un tronçon tubulaire (40) qui est découpé dans le tube constituant également le corps (20) du sachet tubulaire ; et en ce que
    d) le scellage à bords repliés (50) est orienté vers l'extérieur du corps (20) du sachet tubulaire.
  3. Sachet tubulaire selon la revendication 1 ou la revendication 2, caractérisé en ce que le scellage à bords repliés (50) consiste en un scellage chair sur chair du tronçon tubulaire (40).
  4. Sachet tubulaire selon l'une quelconque des revendications précédentes, caractérisé en ce que le scellage à bords repliés (50) consiste en un scellage cuir sur cuir du tronçon tubulaire (40).
  5. Sachet tubulaire selon l'une quelconque des revendications précédentes, caractérisé en ce que le fond (30) présente une couche barrière.
  6. Sachet tubulaire selon l'une quelconque des revendications précédentes, caractérisé en ce que le corps (20) du sachet tubulaire et le tronçon tubulaire (40) consistent en un tube formé par scellage à bords chevauchants ('lap seal') ou extrudé selon une forme de tube.
  7. Sachet tubulaire selon l'une quelconque des revendications précédentes, caractérisé en ce que les arêtes de découpe (60) du corps (20) du sachet tubulaire et du tronçon tubulaire (40) sont disposées de manière à ne pas entrer en contact avec l'intérieur (70) du sachet tubulaire (10).
  8. Sachet tubulaire selon l'une quelconque des revendications précédentes, caractérisé en ce que l'extrémité scellée (80) du tronçon tubulaire est refoulée et/ou scellée selon un angle.
  9. Sachet tubulaire selon l'une quelconque des revendications précédentes, caractérisé en ce que le bord (100) du tronçon tubulaire (40) est scellé avec le bord (101) du corps (20) du sachet tubulaire sur une faible portion seulement.
  10. Procédé de fabrication d'un sachet tubulaire (10) comprenant un corps (20) et un fond intégré par scellage (30), caractérisé en ce qu'il comprend les étapes suivantes :
    a) découper un tronçon tubulaire (40) dans le tube constituant le corps (20) du sachet tubulaire ;
    b) sceller une extrémité libre (90) du tronçon tubulaire (40) par un scellage à bords repliés (50) ;
    c) introduire dans le corps (20) du sachet tubulaire l'extrémité scellée (80) du tronçon tubulaire, laquelle extrémité scellée (80) est disposée en regard du corps (20) ; et
    d) sceller le bord (100) du tronçon tubulaire (40) avec le bord (101) du corps (20) du sachet tubulaire.
  11. Procédé de fabrication d'un sachet tubulaire (10) comprenant un corps (20) et un fond intégré par scellage (30), caractérisé en ce qu'il comprend les étapes suivantes :
    a) découper un tronçon tubulaire (40) dans le tube constituant le corps (20) du sachet tubulaire ;
    b) sceller une extrémité libre (90) du tronçon tubulaire (40) par un scellage à bords repliés (50) ;
    c) introduire dans le corps (20) du sachet tubulaire l'extrémité scellée (80) du tronçon tubulaire, laquelle extrémité scellée (80) est orientée vers l'extérieur du corps (20) ; et
    d) sceller le bord (100) du tronçon tubulaire (40) avec le bord (101) du corps (20) du sachet tubulaire.
  12. Procédé selon la revendication 10 ou la revendication 11, caractérisé en ce que l'étape b) peut être exécutée avant ou en même temps que l'étape a).
  13. Procédé selon l'une quelconque des revendications 10 à 12, caractérisé en ce que le scellage à bords repliés (50) consiste en un scellage chair sur chair du tronçon tubulaire (40).
  14. Procédé selon l'une quelconque des revendications 10 à 12, caractérisé en ce que le scellage à bords repliés (50) consiste en un scellage cuir sur cuir du tronçon tubulaire (40).
  15. Procédé selon l'une quelconque des revendications 10 à 12 ou 14, caractérisé en ce que l'extrémité libre (90) du tronçon tubulaire (40) est relevée avant le scellage.
  16. Procédé selon l'une quelconque des revendications 10 à 15, caractérisé en ce que le corps (20) du sachet tubulaire est étiré radialement avant l'introduction de l'extrémité scellée (80) du tronçon tubulaire.
  17. Procédé selon l'une quelconque des revendications 10 à 16, caractérisé en ce que l'extrémité scellée (80) du tronçon tubulaire est refoulée et/ou scellée selon un angle.
  18. Procédé selon l'une quelconque des revendications 10 à 17, caractérisé en ce que le bord (100) du tronçon tubulaire (40) est scellé avec le bord (101) du corps (20) du sachet tubulaire sur une faible portion seulement.
EP05707617A 2004-03-31 2005-02-24 Sachet tubulaire comprenant un corps et un fond integre par scellage Expired - Lifetime EP1732824B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004015958 2004-03-31
DE102004022374A DE102004022374B4 (de) 2004-03-31 2004-05-06 Schlauchbeutel mit einem Schlauchbeutelkörper und einem eingesiegelten Boden
PCT/EP2005/001960 WO2005105600A1 (fr) 2004-03-31 2005-02-24 Sachet tubulaire comprenant un corps et un fond integre par scellage

Publications (2)

Publication Number Publication Date
EP1732824A1 EP1732824A1 (fr) 2006-12-20
EP1732824B1 true EP1732824B1 (fr) 2008-12-10

Family

ID=34960549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05707617A Expired - Lifetime EP1732824B1 (fr) 2004-03-31 2005-02-24 Sachet tubulaire comprenant un corps et un fond integre par scellage

Country Status (6)

Country Link
US (1) US20090041394A1 (fr)
EP (1) EP1732824B1 (fr)
JP (1) JP4786640B2 (fr)
AT (1) ATE416998T1 (fr)
DE (2) DE102004022374B4 (fr)
WO (1) WO2005105600A1 (fr)

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DE102005026905A1 (de) * 2005-03-01 2006-09-07 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Schlauchbeutel mit Deckel
DE102005010639A1 (de) * 2005-03-08 2006-09-14 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Verpackungsbehälter, insbesondere dosenartiger Behälter
DE102005039852A1 (de) * 2005-08-23 2007-03-08 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Schlauchbeutel mit aufreißbarem Schlauchbeutelkörper
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DE102007017339A1 (de) * 2006-11-17 2008-05-21 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Behälter, insbesondere flexibler schlauchbeutel-und/oder dosenartiger Verpackungsbehälter
FR3018779B1 (fr) 2014-03-18 2016-03-25 Emballage Et De Conditionnement S E M C O Soc D Conditionnement

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Also Published As

Publication number Publication date
ATE416998T1 (de) 2008-12-15
JP4786640B2 (ja) 2011-10-05
US20090041394A1 (en) 2009-02-12
EP1732824A1 (fr) 2006-12-20
WO2005105600A1 (fr) 2005-11-10
DE502005006208D1 (de) 2009-01-22
JP2007530379A (ja) 2007-11-01
DE102004022374A1 (de) 2005-10-27
DE102004022374B4 (de) 2007-05-03

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