US20120269462A1 - Packing bag for transportation - Google Patents

Packing bag for transportation Download PDF

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Publication number
US20120269462A1
US20120269462A1 US13504265 US200913504265A US20120269462A1 US 20120269462 A1 US20120269462 A1 US 20120269462A1 US 13504265 US13504265 US 13504265 US 200913504265 A US200913504265 A US 200913504265A US 20120269462 A1 US20120269462 A1 US 20120269462A1
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US
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Application
Patent type
Prior art keywords
material
packing
absorbing
bag
synthetic
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.)
Abandoned
Application number
US13504265
Inventor
Takuo Itiyanagi
Akitoshi Nishikawa
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.)
VESSEL CO Ltd
Eiken Chemical Co Ltd
Original Assignee
VESSEL CO Ltd
Eiken Chemical Co Ltd
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

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D33/00Details of, or accessories for, sacks or bags
    • B65D33/16End- or aperture-closing arrangements or devices
    • B65D33/25Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener and operated without a slider
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D81/00Containers, 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
    • B65D81/24Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/264Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing liquids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D31/00Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/12Bags or like containers made of paper and having structural provision for thickness of contents with two or more compartments

Abstract

Provided is a packing bag for transportation, including: a body (1) having an opening (2); and an openable and closable sealing part (3) for sealing the opening (2), the body (1) including: two packing material sheets (4, 5) each formed of a thermoplastic synthetic resin film; an absorbing material (6) sandwiched between the two packing material sheets (4, 5), the absorbing material (6) being obtained in such a manner that a synthetic fiber drawn into a fibrous form is subjected to hydrophilic treatment and then woven into cloth; and sides (7) sandwiching the absorbing material (6), which are heat-sealed together at portions excluding the opening (3).

Description

    TECHNICAL FIELD
  • [0001]
    The present invention relates to a packing bag for transportation, which is used for transporting articles such as a container containing liquid, and food containing an exudative fluid.
  • BACKGROUND ART
  • [0002]
    In a case of transporting a container containing liquid, the liquid may spill out due to a breakage of the container, looseness of a cap, or the like, which may stain other articles of transport. Conventionally, in order to prevent this problem, the container is covered with an absorbing material for absorbing the spilled liquid, and the covered container is put into a packing bag. Then, double packing is performed by putting the container into another packing bag, or the container is put into, instead of the another packing bag, a tough container capable of preventing a breakage. This manufacture of this packing bag inevitably requires much time and high cost, and hence there has been a expectation for simplification of the packing bag.
  • [0003]
    In order to meet this expectation, the following envelope is proposed (for example, see Patent Literature 1). Specifically, the envelope includes a packing bag and a liquid absorbent. The packing bag is formed of a laminated body obtained by laminating a film layer on at least one surface of a sheet-like base material, and is fabricated so as to prevent a leakage of liquid. The liquid absorbent is provided inside the packing bag.
  • [0004]
    However, regarding the envelope proposed here, the packing bag is formed of the laminated body including the sheet-like base material and the film layer, and the packing bag and the liquid absorbent are formed in totally separate processes respectively. Then, the liquid absorbent is provided inside the packing bag. Therefore, manufacture of the envelope requires much time and effort, and hence the envelope is not necessarily satisfactory in terms of cost.
  • [0005]
    In recent years, frequency of transporting a specimen for medical examination is increased, and hence a container containing the specimen is transported with increasing frequency. The transportation of the container requires that the container be sealed in a packing bag which is fabricated so as to prevent a leakage of liquid, but the envelope as proposed above is disadvantageous in terms of cost. Accordingly, there is a problem of more inexpensive packing bag.
  • [0006]
    For example, for the purpose of preventing a leakage, the following packing bag is proposed to achieve this purpose. Specifically, the packing bag is made of a synthetic resin, and includes bottom and both sides and a sealing part which is made for an opening. Examples of packing materials for the packing bag include a synthetic resin film made of polyethylene, polyethylene terephthalate (PET), nylon, or polypropylene, a combination of the resins, or a combination of the resins and an aluminum foil. The packing bag is provided with an absorbing material for absorbing all the liquid spilled out in a body. Thus, the packing bag is completed.
  • [0007]
    It is preferred to use, as the absorbing material provided in the body, a water-absorbing (hydrophilic) material formed of a fibrous structure, such as paper, nonwoven fabric, or membrane filter. In addition, in a case where the absorbing material is fixed on an inner surface of the packing bag, the absorbing material does not slide within the bag when the container is put into/taken out of the packing bag, and hence the container is easily put into/taken out of the packing bag, which is preferred.
  • [0008]
    In order to fix the absorbing material to be furnished in the body, when packing materials each formed of the synthetic resin film are laminated one on top of another to form a bag, the absorbing material may be sandwiched between the packing materials, and then peripheral portions sandwiching the absorbing material may be heat-sealed. This facilitates manufacture, and hence a reduction in cost can be achieved.
  • [0009]
    However, the absorbing material, which is sandwiched between the packing materials each formed of the synthetic resin film, is fixed while keeping pores of fibers at the heat-sealed parts. The pores of fibers easily allow penetration of liquid due to a capillarity action, and hence when liquid leaks in the body, the liquid absorbed by the absorbing material seeps through the above-mentioned pores of fibers at the heat-sealed parts out of the body. As a result, the packing bag is inadequate to prevent a leakage of liquid.
  • [0010]
    In a case where the fibrous structure made of a thermoplastic resin is used as the absorbing material, when the packing materials each formed of the synthetic resin film are heat-sealed together, the fibrous structure of the absorbing material is fused to break, and hence the capillarity action does not occur at the heat-sealed parts. Accordingly, the liquid contained in the body does not seep out. However, the fibrous structure made of the thermoplastic resin hardly absorbs liquid, and hence is inadequate as the absorbing material.
  • [0011]
    Further, the fibrous structure obtained by mixing thermoplastic resin powder in pulp may be used as the absorbing material. However, in a case where a content of the thermoplastic resin powder is low, when the packing materials each formed of the synthetic resin film are heat-sealed together, the pores of fibers of the fibrous structure of the absorbing material are not completely filled with the fused thermoplastic resin, and the capillarity action occurs at the heat-sealed parts, with the result that the liquid contained in the body seeps out. Further, when the content of the thermoplastic resin powder is high, the pores of fibers of the fibrous structure of the absorbing material are completely filled with the fused thermoplastic resin, and the capillarity action does not occur at the heat-sealed parts, with the result that the liquid contained in the body does not seep out. However, the pores of fibers of the fibrous structure of the absorbing material are filled with the thermoplastic resin powder, and hence the pores of fibers of the fibrous structure are reduced, which causes a problem in that an amount of absorbed liquid is reduced.
  • [0012]
    For the purpose of solving this problem, there may be proposed a packing bag in which packing materials each formed of a synthetic resin film are slightly larger in dimension than an absorbing material to be internally provided, and thus the absorbing material is not present at outermost portions of heat-sealed parts. However, this packing bag requires much time and effort for positioning the absorbing material. Accordingly, this packing bag is inadequate for mass production, and needs high cost.
  • CITATION LIST Patent Literature
  • [0000]
    • [PTL 1] JP 2001-247134 A
    SUMMARY OF INVENTION Technical Problems
  • [0014]
    Therefore, in order to solve the above-mentioned problems, as a result of intensive studies, inventors of the present invention have succeeded to cause fibrous structure of an absorbing material to disappear when the absorbing material is sandwiched between synthetic resin films and then heat-sealed, and have completed a packing bag for transportation capable of preventing a leakage of liquid even when the absorbing material having a high water-absorbing property is sandwiched between entire surfaces to be heat-sealed.
  • [0015]
    It is an object of the present invention to provide a packing bag for transportation, which is convenient for transportation of articles such as a container containing liquid, and food containing an exudative fluid, capable of preventing liquid from leaking out of a body, capable of keeping a humidity so as to prevent the articles in the body from drying up, and capable of achieving a reduction in cost.
  • Solution to Problems
  • [0016]
    In order to achieve the above-mentioned object, according to the invention as described in claim 1, there is provided a packing bag for transportation, including: a body having an opening; and an openable and closable sealing part for sealing the opening, the body including: two packing material sheets each formed of a thermoplastic synthetic resin film; an absorbing material sandwiched between the two packing material sheets, the absorbing material being obtained in such a manner that a synthetic fiber drawn into a fibrous form is subjected to hydrophilic treatment and then woven into cloth; and bottom and both sides sandwiching the absorbing material, which are heat-sealed together at portions excluding the opening.
  • [0017]
    According to the invention as described in claim 2, the synthetic fiber subjected to the hydrophilic treatment according to claim 1 is obtained in such a manner that a thermoplastic resin subjected to the hydrophilic treatment is laminated on a surface of the synthetic fiber.
  • [0018]
    According to the invention as described in claim 3, a synthetic resin to be drawn into the fibrous form according to claim 1 or 2 includes a synthetic resin having a hydrophilic group.
  • [0019]
    According to the invention as described in claim 4, the openable and closable sealing part for sealing the opening of the body according to any one of claims 1, 2, and 3 includes a slide zipper or a seal zipper.
  • [0020]
    According to the invention as described in claim 5, the thermoplastic synthetic resin film forming each of the two packing material sheets according to any one of claims 1, 2, 3, and 4 is transparent.
  • Advantageous Effects of Invention
  • [0021]
    According to the packing bag for transportation of claim 1, the packing bag for transportation includes: the body having the opening; and the openable and closable sealing part for sealing the opening, the body including: the two packing material sheets each formed of the thermoplastic synthetic resin film; the absorbing material sandwiched between the two packing material sheets, the absorbing material being obtained in such a manner that the synthetic fiber drawn into a fibrous form is subjected to the hydrophilic treatment and then woven into cloth; and the sides sandwiching the absorbing material, which are heat-sealed at the portions excluding the opening. Accordingly, when heat-sealing sides of the two packing material sheets which sandwich the absorbing material therebetween, the synthetic fiber forming the absorbing material is fused to fill pores of fibers, to thereby be welded to the packing material sheets. As a result, heat-sealed parts are sealed so as to prevent penetration of liquid. In a case where liquid leaks in the body, the liquid absorbed by the absorbing material does not seep through the heat-sealed parts out of the body.
  • [0022]
    Further, regarding the absorbing material, the synthetic fiber drawn into a fibrous form is subjected to the hydrophilic treatment, and hence the absorbing material attracts the liquid leaking in the body, with the result that the liquid can be absorbed and kept in the pores of fibers of the absorbing material.
  • [0023]
    According to the packing bag for transportation of claim 2, the synthetic fiber subjected to the hydrophilic treatment according to claim 1 is obtained in such a manner that the thermoplastic resin subjected to the hydrophilic treatment is laminated on the surface of the synthetic fiber, and hence the thermoplastic resin laminated on the surface of the synthetic fiber attracts the liquid leaking in the body, with the result that the liquid can be absorbed and kept in the pores of fibers of the absorbing material.
  • [0024]
    According to the packing bag for transportation of claim 3, the synthetic resin drawn into the fibrous form according to claim 1 or 2 includes a synthetic resin having a hydrophilic group, and hence the synthetic resin more effectively attracts the liquid leaking in the body, with the result that the liquid can be absorbed and kept in the pores of fibers of the absorbing material.
  • [0025]
    According to the packing bag for transportation of claim 4, the sealing part for sealing the opening of the body according to any one of claims 1, 2, and 3 includes a slide zipper or a seal zipper, and hence operations of opening and sealing are facilitated. As a result, when opening the opening of the packing bag, dangerous tools such as scissors and a knife are not needed.
  • [0026]
    According to the packing bag for transportation of claim 5, the thermoplastic synthetic resin film forming each of the packing material sheets according to any one of claims 1, 2, 3, and 4 is transparent, and hence a state of an object contained in the body can be recognized from an outside of the body. In a state in which the body is still sealed, for example, a label or a bar code attached to the object contained in the body can be recognized from the outside of the body.
  • BRIEF DESCRIPTION OF DRAWINGS
  • [0027]
    [FIG. 1] A perspective view illustrating a packing bag for transportation according to an exemplary embodiment of the present invention.
  • [0028]
    [FIG. 2] An exploded perspective view illustrating the packing bag for transportation of FIG. 1.
  • [0029]
    [FIG. 3] A longitudinal sectional view illustrating an open state of the packing bag for transportation of FIG. 1.
  • [0030]
    [FIG. 4] A lateral sectional view taken along the line A-A of FIG. 1.
  • DESCRIPTION OF EMBODIMENT
  • [0031]
    A packing bag for transportation according to an exemplary embodiment of the present invention is described in detail with reference to the drawings.
  • [0032]
    FIGS. 1 to 3 illustrate the packing bag for transportation according to the exemplary embodiment of the present invention. FIG. 1 is a perspective view illustrating the packing bag for transportation according to the present invention. FIG. 2 is an exploded perspective view illustrating the packing bag for transportation of FIG. 1. FIG. 3 is a longitudinal sectional view illustrating an open state of the packing bag for transportation of FIG. 1. FIG. 4 is a lateral sectional view taken along the line A-A of FIG. 1.
  • [0033]
    The packing bag for transportation according to the embodiment of the present invention includes an openable and closable sealing part 3 provided to an opening 2 of a body 1 which has three heat-sealed sides and a quadrangular shape. The above-mentioned body 1 has such a configuration that an absorbing material 6 is sandwiched between two packing material sheets 4, 5 each formed of a thermoplastic synthetic resin film, and that sides 7 sandwiching the absorbing material 6 are heat-sealed together at portions excluding the opening 2.
  • [0034]
    As the above-mentioned thermoplastic synthetic resin film forming each of the packing material sheets 4, 5, a transparent synthetic resin film is used in the embodiment of the present invention. The synthetic resin film is made of polyethylene or polypropylene.
  • [0035]
    Further, the absorbing material 6 sandwiched between the two packing material sheets 4, 5 is obtained in such a manner that a synthetic fiber drawn into a fibrous form is subjected to hydrophilic treatment and then woven into cloth. According to the embodiment of the present invention, the above-mentioned synthetic fiber subjected to the hydrophilic treatment is obtained in such a manner that a thermoplastic resin subjected to the hydrophilic treatment is laminated on a surface of the synthetic fiber. Further, a synthetic resin to be drawn into the fibrous form is not particularly limited, but is preferred to be a synthetic resin having a hydrophilic group, for example, plastics having a hydrophilic group such as an amide group, a sulfone group, or a carboxyl group on a surface thereof.
  • [0036]
    The absorbing material 6 is formed into the same shape as those of the packing material sheets 4, 5, but has a longitudinal (vertical in the drawing sheet) length smaller than those of the packing material sheets 4, 5. When lining up bottom sides and both sidelong sides of all the packing material sheets 4, 5 and the absorbing material 6, the absorbing material 6 has such a length that an upper side of the absorbing material 6 does not overlap the sealing part 3 provided at upper sides of the packing material sheets 4, 5.
  • [0037]
    Further, the sealing part 3 provided to the opening 2 of the body 1 is not particularly limited as long as the sealing part 3 can hermetically seal the opening 6, but it is preferred that the sealing part 3 include a slide zipper or a seal zipper. According to the embodiment of the present invention, the sealing part 3 includes a groove for a slide zipper or seal zipper 3 a provided in an upper side of one of the packing material sheets 4, 5, and a protruded streak part 3 b provided on an upper side of the other of the packing material sheets 4, 5 so as to be fast fitted in the groove for a slide zipper or seal zipper 3 a.
  • [0038]
    The above-mentioned body 1 has such a configuration that the absorbing material 6 is sandwiched between the two packing material sheets 4, 5 each formed of the thermoplastic synthetic resin film, and that the sides 7 sandwiching the absorbing material 6 are heat-sealed together at the portions excluding the opening 2. According to the embodiment of the present invention, in addition to the above-mentioned configuration, the packing material sheets 4, 5 and the absorbing material 6 are heat-sealed together in a longitudinal direction, to thereby form a partition sealing part 8 substantially at a center portion of the body 1.
  • [0039]
    The packing bag for transportation thus configured includes the body 1 including: the two packing material sheets 4, each formed of the thermoplastic synthetic resin film; the absorbing material 6 sandwiched between the two packing material sheets 4, 5, the absorbing material 6 being obtained in such a manner that the synthetic fiber drawn into a fibrous form is subjected to the hydrophilic treatment and then woven into cloth; and the sides 7 sandwiching the absorbing material 6, which are heat-sealed together at the portions excluding the opening 3. Accordingly, when heat-sealing sides of the two packing material sheets 4, 5 which sandwich the absorbing material 6 therebetween, the synthetic fiber forming the absorbing material 6 is fused to fill pores of fibers, to thereby be welded to the packing material sheets 4, 5. As a result, heat-sealed parts 9 are sealed so as to prevent penetration of liquid. When liquid leaks in the body 1, the liquid absorbed by the absorbing material 6 does not seep through the heat-sealed parts 9 out of the body 1.
  • [0040]
    Further, regarding the absorbing material 6, the synthetic fiber drawn into a fibrous form is subjected to the hydrophilic treatment, and hence the absorbing material 6 attracts the liquid leaking in the body 1, with the result that the liquid can be absorbed and kept in the pores of fibers of the absorbing material 6. According to the embodiment of the present invention, the above-mentioned synthetic fiber subjected to the hydrophilic treatment is obtained in such a manner that the thermoplastic resin subjected to the hydrophilic treatment is laminated on the surface of the synthetic fiber, and hence the thermoplastic resin laminated on the surface of the synthetic fiber attracts the liquid leaking in the body 1, with the result that the liquid can be absorbed and kept in the pores of fibers of the absorbing material 6.
  • [0041]
    Further, according to the embodiment of the present invention, a synthetic resin to be drawn into the above-mentioned fibrous form includes a synthetic resin having a hydrophilic group, and hence the synthetic resin more effectively attracts the liquid leaking in the body 1, with the result that the liquid can be absorbed and kept in the pores of fibers of the absorbing material 6.
  • [0042]
    Further, according to the embodiment of the present invention, the sealing 3 for sealing the opening 2 of the body 1 includes a slide zipper or a seal zipper, and hence operations of opening and sealing the opening 2 of the body 1 are facilitated. As a result, when opening the opening 2 of the body 1, dangerous tools such as scissors and a knife are not needed.
  • [0043]
    Further, according to the embodiment of the present invention, the synthetic resin film forming each of the packing material sheets 4, 5 is transparent, and hence a state of an object contained in the body 1 can be recognized from an outside of the body 1. In a state in which the body 1 is still sealed, for example, a label or a bar code attached to the object contained in the body 1 can be recognized from the outside of the body 1.
  • [0044]
    In addition, according to the embodiment of the present invention, the packing material sheets 4, 5 and the absorbing material 6 are heat-sealed together in the longitudinal direction, to thereby form the partition sealing part 8 substantially at the center of the body 1. Accordingly, the absorbing material 6 can be prevented from bulging in the body 1, and in addition, for example, two containers containing liquid can be put into one packing bag separately. Even if the liquid leaks from one of the containers, the other container separated by the partition sealing part 8 is not contaminated.
  • REFERENCE SIGNS LIST
  • [0000]
    • 1 body
    • 2 opening
    • 3 sealing part
    • 3 a groove for a slide zipper or seal zipper
    • 3 b protruded streak part
    • 4, 5 packing material
    • 6 absorbing material
    • 7 side
    • 8 partition
    • 9 heat-sealed part

Claims (5)

  1. 1. A packing bag for transportation, comprising:
    a body having an opening; and
    an openable and closable sealing part for sealing the opening, the body comprising:
    two packing material sheets each formed of a thermoplastic synthetic resin film;
    an absorbing material sandwiched between the two packing material sheets, the absorbing material being obtained in such a manner that a synthetic fiber drawn into a fibrous form is subjected to hydrophilic treatment and then woven into cloth; and
    sides sandwiching the absorbing material, which are heat-sealed at the portions excluding the opening.
  2. 2. A packing bag for transportation according to claim 1, wherein the synthetic fiber subjected to the hydrophilic treatment is obtained in such a manner that a thermoplastic resin subjected to the hydrophilic treatment is laminated on a surface of the synthetic fiber.
  3. 3. A packing bag for transportation according to claim 1, wherein a synthetic resin to be drawn into the fibrous form comprises a synthetic resin having a hydrophilic group.
  4. 4. A packing bag for transportation according to claim 1, wherein the openable and closable sealing part for sealing the opening of the body comprises a slide zipper or a seal zipper.
  5. 5. A packing bag for transportation according to claim 1, wherein the thermoplastic synthetic resin film forming each of the two packing material sheets is transparent.
US13504265 2009-10-27 2009-10-27 Packing bag for transportation Abandoned US20120269462A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2009/005646 WO2011052000A1 (en) 2009-10-27 2009-10-27 Packaging bag for transportation

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Publication Number Publication Date
US20120269462A1 true true US20120269462A1 (en) 2012-10-25

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US (1) US20120269462A1 (en)
EP (1) EP2495188B1 (en)
JP (1) JPWO2011052000A1 (en)
CN (1) CN102574610B (en)
DK (1) DK2495188T3 (en)
ES (1) ES2592379T3 (en)
WO (1) WO2011052000A1 (en)

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