EP2097322B1 - Behälter, gerät und verfahren zur herstellung eines behälters - Google Patents

Behälter, gerät und verfahren zur herstellung eines behälters Download PDF

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Publication number
EP2097322B1
EP2097322B1 EP07858904A EP07858904A EP2097322B1 EP 2097322 B1 EP2097322 B1 EP 2097322B1 EP 07858904 A EP07858904 A EP 07858904A EP 07858904 A EP07858904 A EP 07858904A EP 2097322 B1 EP2097322 B1 EP 2097322B1
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EP
European Patent Office
Prior art keywords
web
chamber
welding
products
central
Prior art date
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EP07858904A
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English (en)
French (fr)
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EP2097322A2 (de
Inventor
Andrea Bartoli
Primo Finetti
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Sarong SpA
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Sarong SpA
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Publication of EP2097322A2 publication Critical patent/EP2097322A2/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
    • B65B9/042—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material for fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/3261—Flexible containers having several compartments

Definitions

  • the invention relates to an apparatus and a method for producing a container, in particular for packaging food, pharmaceutical or cosmetic products.
  • Machines are known for packaging fluid products or products that solidify after being packaged, in which a first web and a second web, made of deformable material through drawing, are welded so that cavities formed by drawing on the first web are arranged at further cavities formed through drawing on the second web so as to define a recess inside which the material to be packaged is then dispensed.
  • the recess thus defines a container of the product to be packaged.
  • WO2004069658 discloses an apparatus for forming containers by starting from sheet material.
  • the sheet materials that may be used can be multilayer, in particular a layer of metallic material may be present, coupled with one or more layers of plastics.
  • Sheet material from a first reel and sheet material from a second reel 4 are respectively unwound and longitudinally cut to obtain four webs thus obtaining two facing rows of containers that enables the productivity of the apparatus to be doubled.
  • the webs are fed to a pre-heating station and then to a first operating station, a forming station and a second operating station 29.
  • US6883295 discloses an apparatus and a method according to the preambles of claims 1 and 7 and describes a plant for manufacturing a double pouch container in heat formable and heat weldable material, the plant comprising a feeding station which supplies two external ribbons joined at bottom to an infeeding station for supplying a centrally arranged ribbon. The two external and the central ribbons are then fed to a pre-heating station to pre-heat the external ribbons and to a welding station for welding together the two external ribbons with the central ribbon. Subsequently to the welding, the forming station houses the welded ribbons in half moulds having the same shape of the final containers for the insertion of forming fluid and the expansion of the two external ribbons made of plastic material to obtain said containers.
  • An object of the invention is to improve known machines for packaging fluid products or products that solidify after being packaged.
  • a further object of the invention is to produce more versatile containers that can, for example, accommodate different types of fluid products or products that solidify after being packaged.
  • containers are thus producible in which the first cavity and the second cavity made by the forming means respectively on the first web and on the second web are separated by the central wall.
  • the produced containers can house, inside a first chamber defined by the first cavity and inside a second chamber defined by the second cavity, several doses of the same material or different materials.
  • the containers are made owing to an apparatus that is capable of processing webs of sheet material that are deformable through drawing, for example made of a material comprising a film of aluminium.
  • the produced containers provide the contained products with great protection against light and prevent gas moving through the external walls.
  • the central wall is made so as to prevent the passage of gas or material between the first and the second chamber.
  • the containers produced by the apparatus and method according to the invention can be used for packaging a vast range of products.
  • the containers can for example be advantageously used in cases in which it is necessary to provide a container with several compartments to dispense doses of the same product at different moments.
  • the containers can also be advantageously used for containing different products arranged for interacting at the moment of the dispensing, for example two components of a medical product.
  • the containers can also be used to contain doses of various products to be used in different steps of the same treatment, for example aesthetic treatment in which the container houses a shampoo and a conditioner.
  • the first and the second chamber can be made so as to have a different capacity.
  • the forming means 2 comprises a first forming station 8 and a second forming station 9 alongside one another and arranged for obtaining, through drawing, respectively first cavities 10 on a first continuous web 11 and second cavities 12 on a second continuous web 13.
  • the first continuous web 11 and the second continuous web 13 are moved respectively to the first forming station 8 and the second forming station 9 through moving means that is not shown, for example grippers that are movable along a advance direction F, shown in Figure 1 , and arranged downstream of the first forming station 8 and of the second forming station 9.
  • the moving means enables the continuous webs 11 and 13 to be indexed in synchronised manner.
  • the first continuous web 11 and the second continuous web 13 are unwound, during movement steps, by further supplying means, not shown, for example respectively by a first reel and by a second reel, and are advanced towards the forming means 2.
  • the first continuous web 11 and the second continuous web 13 are made of a material that is formable through drawing.
  • the first continuous web 11 and the second continuous web 13 comprise superimposed films made of various materials, for example, as shown in Figure 6 , a first film 60 that is hardly stretchable that is made of aluminium and a second film 61 made of heat-weldable plastics.
  • the moving means is arranged for positioning at each movement step a first portion 14 of the first continuous web 9 and a second portion 15 of the second continuous web 11 that are not yet formed between punch means 16 and forming recess means 17 of the respective forming station 8,9.
  • Figures 3, 4 and 5 relate to a forming step, during which the first continuous web 11 is formed by drawing inside the first forming station 8.
  • the forming step extends between a step in which the continuous web 11 is moved and a subsequent step in which the continuous web 11 is moved.
  • the punch means 16 approaches the forming recess means 17 and regions of the continuous webs 11 are pushed by reserve-forming blades 18 movable in a direction Z, shown in Figure 3 , inside corresponding first forming recesses 19 so as to form reserves of material 20 inside the latter.
  • punches 21 of said punch means 16 interact with second forming recesses 22, alternating with the first forming recesses 19 on the forming recess means 17, to form the first cavities 10 on the first continuous web 11.
  • a second part 27 of the material pushed by the reserve-forming blades 18 to form the reserves of material 20 is not dragged to the drawing zones 26, being too distant from the latter, and maintains the concave profile also at the end of the drawing step.
  • the cavities 10 are thus formed without subjecting the continuous web 11 to stress that could alter the features of the continuous web 11 or damage the continuous web 11.
  • the second cavities 12 on the second continuous web 13 are formed through drawing according to methods similar to those disclosed above.
  • first continuous formed web 11 and the second continuous formed web 13 are indexed towards the heat-welding means 4 by the moving means.
  • a path of the webs 11 and 13 is deviated by deviating means 28, so as to bring the first continuous web 11 near to the second continuous web 13 and so that the first cavities 10 are arranged near the second cavities 12.
  • the deviating means 28 is made so as to deviate the webs 11 and 13 without altering the shape of the cavities 10, 12.
  • the deviating means 28 comprises a pair of idle rollers 29 and a pair of cylindrical elements 30 on which portions of the continuous webs 11 and 13 are wound.
  • the continuous webs 11, 13 come into contact with the rollers 29 along a surface 62 situated on a side of the continuous webs 11, 13 opposite the one in which the cavities 10 and 12 are obtained near zones 38 that are not drawn by the punches 21.
  • the rollers 29 have a large diameter compared with dimensions considered in the advance direction F, of the cavities 10, 12.
  • each cylindrical element 30 In order to prevent a stiff surface of each cylindrical element 30 deforming the cavities 10, 12, whilst the continuous webs 11, 13 are deviated, the cylindrical elements 30 are provided with end wheels 31 made of spongy material by means of which the contact develops with the continuous webs 11, 13 in zones sufficiently distant from the cavities 10, 12.
  • end wheels 31 have a further large diameter compared with the dimension of the cavities 10, 12.
  • each roller 29 is positioned at a sufficient distance from the corresponding cylindrical element 30, engaged on the same continuous web 11, 13.
  • supplying means 3 arranged for supplying the heat-welding means with a central continuous web 32.
  • the supplying means 3 is arranged for positioning the central continuous web 32 in a position interposed between the first continuous web 11 and the second continuous web 13.
  • the supplying means 3 comprises a reel, which is not shown, from which the central continuous web 32 is unwound, and roller means, which is not shown, which is suitable for maintaining the latter taut during unwinding from the reel and inserting between the two continuous webs 11 and 13.
  • the supplying means 3 further comprises a tilted fixed shaft 33, shown in Figures 1 and 2 arranged between the continuous webs 11 and 13 for deviating the central continuous web 32 arriving from the roller means and directing the central continuous web 32 along a direction substantially parallel to the advance direction F so as to insert the central continuous web 32 between the two continuous webs 11 and 13 upstream of the heat-welding means 4.
  • the cylindrical elements 30 are arranged for bringing the first continuous web 11 and the second continuous web 13 near to the central continuous web 32 upstream of the heat-welding means 4.
  • the central continuous web 32 may be a web of plastics or a web, as shown in Figure 7 , comprising a central film 34 made of metal material, for example aluminium, covered by two side films 35, made of heat-weldable plastics, arranged for enabling the central continuous web 32 to be welded to the continuous webs 11 and 13 during a heat-welding step.
  • the heat-welding means 4 is arranged for welding the first web 11 and the second web 13 respectively on a first side surface 36 and on a second side surface 37 of the central continuous web 32.
  • the heat-welding means 4 comprises a pair of half moulds arranged for closing, heating the zones 38 of the continuous webs 11 and 13 that were not deformed during the drawing step and the corresponding zones of the first side surface 36 and of the second side surface 37 that they face, and thus compacting the continuous webs 11 and 13 on the central continuous web 32.
  • the second film made of heat-weldable plastics of the first continuous web 11 and of the second continuous web 13 are welded to the central continuous web 32, regardless of whether the latter is made entirely of plastics or has side films 35.
  • first elongated elements 39 and second elongated elements 40 are inserted respectively between the first continuous web 11 and the central continuous web 32, and between the second continuous web 13 and the central continuous web 32, first elongated elements 39 and second elongated elements 40, visible in Figure 2 , which prevent welding forming along further zones 41 that extend from a peripheral zone of the continuous webs 11, 13 until respectively the first cavities 10 and the second cavities 12.
  • conduits 42 shown in Figures 8 and 9 are defined at the end of the heat-welding step, the conduits 42 causing the cavities 10 and 12 to communicate with the external environment.
  • a central continuous web 32 having a width that is greater than that of the continuous webs 11 and 13 and arranging the supplying means 3 so that an excess of material 43 obtained with respect to a width of the continuous webs 11 and 13 is at an end of the central continuous web 32, which end is arranged for interacting with the elongated elements 39 and 40.
  • the first continuous web 11, the second continuous web 13 and the central continuous web 32 define, after being welded by the heat-welding means, a web of containers 44.
  • Further moving means that is not shown, for example further grippers that are movable along the advance direction F, index the web of containers 44 to the filling means 5 in a manner synchronised with the moving means.
  • the filling means 5 is arranged for filling the first cavities 10 and the second cavities 12 with the fluid products or the products that solidify after packaging.
  • the filling means 5 comprises a plurality of movable nozzles arranged for being inserted into the conduits 42 and for dispensing into the cavities 10 and 12 products to be packaged, for example the fluid products or the products that solidify after packaging.
  • the web of containers 44 is moved by the further movement means to sealing means 6 arranged for closing by a further heat-welding step the conduit 42 so as to seal the cavities 10 and 12.
  • the web of containers 44 is then advanced by the further movement means to cutting means arranged for cutting the latter so as to separate single containers 45.
  • Each container 45 is provided with a first chamber 48 defined by the first cavity 10 and with a second chamber 49 defined by the second cavity 12, and contains, depending on the products to packaged dispensed by the filling means 5, several doses of the same material or different materials.
  • the cutting means 7 can cut the web so as to obtain forms of the container 45 that are advantageously usable by a user.
  • the zone 38 can be cut so as to provide a grip for the user and to simplify a container 45 opening operation.
  • FIG 10 there is shown a container 45 provided with an edge 46 surrounding the first chamber 48 and the second chamber 49.
  • the edge 46 is provided with a gripping zone 51 having a greater width than the edge 46, which gripping zone 51 is situated in a lower portion or the container 45 and is arranged for being handled by the user.
  • a V-shaped notch 47 is obtained that enables the container 45 to be opened easily when it is desired to dispense the products contained therein.
  • the first chamber 48 and the second chamber 49 can be made so that one has different dimensions from the other, for example for housing other quantities of product, or that one has a different shape from the other one, so as to enable one chamber at a time to be open when containers are produced arranged for dispensing the contained products in different moments.
  • the central continuous web 32 arranged for forming a dividing wall between the first chamber 48 and the second chamber 49 may comprise a central film 34 made of aluminium.
  • the container 45 contains two products that are different from one another, the presence of the film made of aluminium prevents interaction between the two products in an optimum manner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Making Paper Articles (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Packages (AREA)

Claims (14)

  1. Vorrichtung zum Verpacken zumindest anfänglich fluidischer Erzeugnisse, mit einem Ziehformmittel (2), das dazu ausgestaltet ist, eine erste Bahn (11) eines Plattenmaterials und eine zweite Bahn (13) des Plattenmaterials zu ziehen, wobei das Plattenmaterial zugumformbar ist und eine kaum dehnbare Schicht aufweist, insbesondere eine aus Aluminium hergestellte Schicht, mit einem Wärmeschweißmittel (4), das stromabwärts des Formmittels (2) angeordnet ist und zum Verschweißen der ersten Bahn (11) mit der zweiten Bahn (13) ausgebildet ist, dadurch gekennzeichnet, dass das Formmittel (2) eine erste Formstation (8) und eine zweite Formstation (9) aufweist, die nebeneinander angeordnet sind und dazu ausgestaltet sind, mittels Ziehen erste Hohlräume (10) bzw. zweite Hohlräume (12) auf der ersten Bahn (11) bzw. auf der zweiten Bahn (13) zu erlangen, und dass zwischen dem Formmittel (2) und dem Wärmeschweißmittel (4) ein Zuführmittel (3) angeordnet ist, das dazu ausgestaltet ist, dem Wärmeschweißmittel (4) eine Zentralbahn (32) zuzuführen, die zwischen der ersten Bahn (11) und der zweiten Bahn (13) angeordnet wird, wobei das Zuführmittel (3) eine geneigte Welle (33) aufweist, die dazu ausgebildet ist, einen Weg der Zentralbahn (32) abzulenken, um die Zentralbahn (32) der ersten Bahn (11) und der zweiten Bahn (13) zwischenzuschalten.
  2. Vorrichtung nach Anspruch 1, wobei das Zuführmittel (3) eine Trommel, die dazu ausgestaltet ist, die Zentralbahn (32) zuzuführen, und ein Rollenmittel aufweist, das dazu ausgestaltet ist, die Zentralbahn (32) im Zuführmittel (3) gespannt zu halten.
  3. Vorrichtung nach Anspruch 1 oder 2, wobei das Wärmeschweißmittel (4) dazu ausgestaltet ist, eine erste Kammer (48) zwischen der Zentralbahn (32) und der ersten Bahn (11) und eine zweite Kammer (49) zwischen der Zentralbahn (32) und der zweiten Bahn (13) auszubilden.
  4. Vorrichtung nach Anspruch 3, wobei das Wärmeschweißmittel (4) ein erstes Längselementmittel (39) und ein zweites Längselementmittel (40) aufweist, die dazu ausgestaltet sind, zwischen die erste Bahn (11) und die Zentralbahn (32) bzw. zwischen die zweite Bahn (13) und die Zentralbahn (32) eingeführt zu werden, um die Bildung eines Leitungsmittels (42) zu ermöglichen, um die erste Kammer (48) bzw. die zweite Kammer (49) mit einer äußeren Umgebung zu verbinden.
  5. Vorrichtung nach Anspruch 3 oder 4, die ferner ein Abfüllmittel (5) aufweist, das dazu ausgestaltet ist, die erste Kammer (48) und die zweite Kammer (49) mit den Erzeugnissen zu befüllen, wobei das Abfüllmittel (5) ein bewegliches Düsenmittel aufweist, das dazu ausgestaltet ist, in das Leitungsmittel (42) eingeführt zu werden, um die Erzeugnisse abzugeben.
  6. Vorrichtung nach Anspruch 5, wobei das bewegliche Düsenmittel Düsen aufweist, die dazu ausgestaltet sind, erste Erzeugnisse und zweite Erzeugnisse in die erste Kammer (48) bzw. in die zweite Kammer (49) abzugeben.
  7. Verfahren zum Verpacken zumindest anfänglich fluidischer Erzeugnisse, aufweisend Ziehen einer ersten Bahn (11) eines Plattenmaterials und einer zweiten Bahn (13) des Plattenmaterials, wobei das Plattenmaterial zugumformbar ist und eine kaum dehnbare Schicht aufweist, insbesondere eine aus Aluminium hergestellte Schicht, Verschweißen der ersten Bahn (11) und der zweiten Bahn (13) nach dem Ziehen mittels Wärmeschweißen, dadurch gekennzeichnet, dass das Ziehen das Formen erster Hohlräume (10) bzw. zweiter Hohlräume (12) auf der ersten Bahn (11) bzw. auf der zweiten Bahn (13) in einer ersten Formstation (8) bzw. in einer zweiten Formstation (9) aufweist, die nebeneinander angeordnet sind, und dass zwischen dem Formen und dem Verschweißen ein Zuführen einer Zentralbahn (32) zwischen die erste Bahn (11) und die zweite Bahn (13) vorgesehen ist, wobei das Zuführen ein Ablenken eines Weges der Zentralbahn (32) mittels Ablenkungsmittels (33) aufweist, um die Zentralbahn (32) der ersten Bahn (11) und der zweiten Bahn (13) zwischenzuschalten.
  8. Verfahren nach Anspruch 7, wobei das Zuführen ein Abwickeln der Zentralbahn (32) von einem Trommelmittel und ein unter Spannung setzen der Zentralbahn (32) während des Zuführens durch ein Rollenmittel aufweist.
  9. Verfahren nach Anspruch 7 oder 8, wobei das Verschweißen ein Erlangen erster Kammern (48) zwischen der Zentralbahn (32) und der ersten Bahn (11) und zweiter Kammern (49) zwischen der Zentralbahn (32) und der zweiten Bahn (12) aufweist.
  10. Verfahren nach irgendeinem der Ansprüche 7 bis 9, wobei das Verschweißen ein Einführen eines ersten Längselementmittels (39) und eines zweiten Längselementmittels (40) zwischen die erste Bahn (11) und die Zentralbahn (32) bzw. zwischen die zweite Bahn (13) und die Zentralbahn (32) aufweist, um ein Leitungsmittel (42) zu formen, das dazu ausgestaltet ist, die erste Kammer (48) bzw. die zweite Kammer (49) mit einer äußeren Umgebung zu verbinden.
  11. Verfahren nach Anspruch 9 oder 10, das ein Befüllen der ersten Kammer (48) und der zweiten Kammer (49) mit den Erzeugnissen mittels eines Abfüllmittels (5) aufweist, wobei das Befüllen das Einführen eines beweglichen Düsenmittels in das Leitungsmittel (42) aufweist, um die Erzeugnisse abzugeben.
  12. Verfahren nach Anspruch 11, wobei das Abgeben der Erzeugnisse ein Absgeben erster Erzeugnisse und zweiter Erzeugnisse der Erzeugnisse mittels Düsen in die erste Kammer (48) bzw. in die zweite Kammer (49) aufweist.
  13. Verfahren nach irgendeinem der Ansprüche 7 bis 12, das ferner nach dem Verschweißen ein Schneiden der ersten Bahn (11), der zweiten Bahn (13) und der dritten Bahn (32) mittels eines Schnittmittels aufweist, um einen Behälter (45) zu erhalten, der mit der ersten Kammer (48) und mit der zweiten Kammer (49) versehen ist.
  14. Verfahren nach Anspruch 13, bei dem das Schneiden ein Formen einer Kante (46) des Behälters (45) aufweist, um einen Einschnitt (47) zu definieren, der dazu ausgestaltet ist, ein Öffnen des Behälters (45) zu erleichtern.
EP07858904A 2006-11-29 2007-11-28 Behälter, gerät und verfahren zur herstellung eines behälters Active EP2097322B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000395A ITMO20060395A1 (it) 2006-11-29 2006-11-29 Contenitore, apparato e metoo per la sua produzione
PCT/IB2007/003656 WO2008065512A2 (en) 2006-11-29 2007-11-28 Container, apparatus and method for producing a container

Publications (2)

Publication Number Publication Date
EP2097322A2 EP2097322A2 (de) 2009-09-09
EP2097322B1 true EP2097322B1 (de) 2011-07-13

Family

ID=39332118

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07858904A Active EP2097322B1 (de) 2006-11-29 2007-11-28 Behälter, gerät und verfahren zur herstellung eines behälters

Country Status (5)

Country Link
EP (1) EP2097322B1 (de)
AT (1) ATE516209T1 (de)
ES (1) ES2369690T3 (de)
IT (1) ITMO20060395A1 (de)
WO (1) WO2008065512A2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9173728B2 (en) 2008-11-19 2015-11-03 Merial Inc. Multi-cavity container having offset indentures for dispensing fluids
CN102271672B (zh) 2008-11-19 2015-02-04 梅里亚有限公司 用于治疗寄生物感染的包含单独的或与甲脒组合的1-芳基吡唑的组合物
ATE549272T1 (de) * 2009-10-02 2012-03-15 Uhlmann Pac Systeme Gmbh & Co Verpackung für pharmazeutische produkte sowie verfahren und vorrichtung zu ihrer herstellung
US20180312282A1 (en) * 2017-04-28 2018-11-01 Rollstock Inc. Horizontal form-fill-seal packaging system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2497212A (en) * 1945-10-31 1950-02-14 Alfonso M Donofrio Method of manufacturing capsules
GB1025486A (en) * 1963-04-01 1966-04-14 Ivers Lee Co Method of and machine for making a package
US6883295B1 (en) 1999-05-28 2005-04-26 Sarong S.P.A. Process and plant for manufacturing double-pouch containers
US6260735B1 (en) * 2000-05-12 2001-07-17 Colgate-Palmolive Company Uniform dispensing dual chamber sachet
ITMO20030030A1 (it) 2003-02-07 2004-08-08 Sarong Spa Apparati e metodi per ottenere contenitori, e contenitore

Also Published As

Publication number Publication date
ITMO20060395A1 (it) 2008-05-30
WO2008065512A3 (en) 2008-07-31
ES2369690T3 (es) 2011-12-05
EP2097322A2 (de) 2009-09-09
ATE516209T1 (de) 2011-07-15
WO2008065512A2 (en) 2008-06-05

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