EP1656303A1 - Container lid - Google Patents

Container lid

Info

Publication number
EP1656303A1
EP1656303A1 EP04763928A EP04763928A EP1656303A1 EP 1656303 A1 EP1656303 A1 EP 1656303A1 EP 04763928 A EP04763928 A EP 04763928A EP 04763928 A EP04763928 A EP 04763928A EP 1656303 A1 EP1656303 A1 EP 1656303A1
Authority
EP
European Patent Office
Prior art keywords
lid
container
bridges
rim
container lid
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.)
Withdrawn
Application number
EP04763928A
Other languages
German (de)
French (fr)
Inventor
Manfred UNILEVER BESTFOODS HÖRNKE
Bernardus Antoon R. T. UNILEVER BESTFOODS KEUNEN
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.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
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 Unilever PLC, Unilever NV filed Critical Unilever PLC
Priority to EP04763928A priority Critical patent/EP1656303A1/en
Publication of EP1656303A1 publication Critical patent/EP1656303A1/en
Withdrawn legal-status Critical Current

Links

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
    • B65D43/00Lids or covers for rigid or semi-rigid containers
    • B65D43/02Removable lids or covers
    • B65D43/0202Removable lids or covers without integral tamper element
    • B65D43/0204Removable lids or covers without integral tamper element secured by snapping over beads or projections
    • B65D43/0212Removable lids or covers without integral tamper element secured by snapping over beads or projections only on the outside, or a part turned to the outside, of the mouth
    • 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00027Stackable lids or covers
    • 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00064Shape of the outer periphery
    • B65D2543/00074Shape of the outer periphery curved
    • B65D2543/00092Shape of the outer periphery curved circular
    • 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00259Materials used
    • B65D2543/00296Plastic
    • 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00509Cup
    • 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00527NO contact
    • 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00555Contact between the container and the lid on the inside or the outside of the container on both the inside and the outside
    • 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00712Snapping means on the lid
    • B65D2543/00722Profiles
    • B65D2543/00731Groove or hollow bead
    • 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00712Snapping means on the lid
    • B65D2543/00787Periphery concerned
    • B65D2543/00796Totality

Definitions

  • the invention relates to a thermoformed plastic container lid comprising a substantially sheet like lid body having a depending skirt (1) extending around the full periphery of the lid body, the skirt (1) being suitable for engagement with the peripheral portion of a plastic open top container, comprising a lid rim (2) in a position near the periphery of the lid body, which divides the lid body in a centrally located mirror (3) and an outer part (4) on the other side of the lid rim (2) .
  • a container lid is also known as a two-step container lid (see figure 1) , as opposed to a one-step container lid (see figure 2), in which the rim (2 ' ) engages with the container rim.
  • a two-step container lid as described in the preamble of claim 1 is known from DE29910076U1.
  • a two-step container lid may be used in situations where the container is covered with a cover foil, whereas the one-step lid may not. The reason is that the mirror of the two-step lid is at the same level as the top rim of the container and the foil.
  • a one-step container lid cannot be used in combination with a foil at the level of the container rim, since the mirror of the one-step lid will be at a level below the level of the foil .
  • a disadvantage of the known two-step container is that, after initial opening, when the user wants to re-close the container, the top rim of the container may fall into the recess (8) of the lid rim (2) , after which the container cannot be closed. This re-closing problem especially occurs, when the user wants to re-close the container using one hand, and presses the lid on the container from one side to the other.
  • the lid rim (2) comprises one or more bridges (5) connecting the mirror (3) and the outer part (4) .
  • the bridge or bridges (5) will cause the lid to slide over the container rim until the container rim is caught by the skirt (1) , it is no longer possible that the container rim enters into the recess (8) of the lid rim (2) .
  • An additional advantage of the invention is that the bridges (5) reduce or even avoid the problem of nesting of the lids when stacked and put under pressure, e.g. in a production line.
  • Conventional two-step lids may when stacked and put under pressure nest, because the lid rim (6) of a lower lid may be pushed into the recess (8) of the lid rim (2) of a lid higher in the stack.
  • This problem is also solved by the provision of bridges (5) .
  • the tendency to nest is herein determined by measuring the pressure needed to compress a stack of lids, and the pressure needed is herein called the stack compression resistance (expressed in N/m2) .
  • the container and lid according to the invention may be made by the technologies known in the art, from materials known in the art.
  • the lid is made by thermoforming .
  • thermoforming a plastic sheet softened by heat is formed either into or around a mould. This forming step may be supported by vacuum, air pressure, and material distribution may be improved by plug assistance.
  • vacuum forming pressure forming and matched mould forming.
  • the material of the lid and container may be any material known for this ⁇ se .
  • Examples of possible materials are HDPE (high density polyethylene) , LDPE (Low density polyethylene) , PP (polypropylene) , PET (Polyester Terephtalate) , PVC (Polyvinylchloride) , OPVC (oriented PVC) , PC (Polycarbonate) , EVOH (Ethylenevinylalcohol) and multilayer materials of two or more of these polymers .
  • the shape of the container lid may be any shape, for example round, rounded rectangular, oval or square.
  • the skirt (1) is preferably provided with indent features (7) see figure 4. These indent features (7) fix the lid on the container when closed.
  • the one or more bridges (5) are in the same plane as the mirror (3) .
  • the lid rim (2) comprises four or more bridges (5) .
  • Four bridges (5) may already be effective if positioned on each of the sides of a square or rectangular container lid.
  • the container lid comprising six or more bridges (5) and preferably the bridges (5) are distributed evenly around the periphery of the lid.
  • the bridge is a partial bridge consisting of two bridge parts (9,10), each bridge part (9,10) being an indentation of a side wall of the lid rim (2) .
  • the indentation is formed by placing part of the side wall at a negative angle, compared to the side wall at a place where there is no bridge, as shown in figure 5.
  • the advantage of this construction is that it is no longer possible that the container rim enters into the recess (8) of the lid rim (2) and that the stack compression resistance is very high, because a load on the stack is effectively transferred to lower lids, through the bridge parts (9,10) .
  • the number of bridges may be easily determined by the skilled person taking into consideration the size and shape of the container lid. A large container lid will need more bridges than a small container lid.
  • the container lid comprises an uneven number of bridges (5) evenly distributed around the periphery of the lid. This improves the flexing strength of the lid, compared to the same lid with an even number of bridges distributed evenly around the periphery of the lid.
  • the width of the bridges (5) is 3 mm or more. The width should be such that the bridge does not break when a pressure commonly used to close the container is applied. The features of the preferred embodiments described above may be applied as such or in combination with eachother.
  • the lid and container may be used for packaging consumer goods, such as for instance foods, such as for instance margarines or spreads .
  • Figure 1 Cross-section of detail of two stacked one- step container lids
  • Figure 2 Cross-section of detail of two stacked two-step container lids
  • Figure 3 Top view of container lid according to the invention having eight bridges
  • Figure 4 Side view of conventional container lid showing skirt (1) and indent features (7) , as may also be applied on the lid according to the invention

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

Thermoformed plastic container lid comprising a substantially sheet like lid body having a depending skirt (1) extending around the full periphery of the lid body, the skirt (1) being suitable for engagement with the peripheral portion of a plastic open top container, comprising a lid rim (2) in a position near the periphery of the lid body, which divides the lid body in a centrally located mirror (3) and an outer part (4) on the other side of the lid rim (2), wherein the lid rim (2) comprises one or more bridges (5) connecting the mirror (3) and the outer part (4).

Description

Container lid
Description
Field of the invention
The invention relates to a thermoformed plastic container lid comprising a substantially sheet like lid body having a depending skirt (1) extending around the full periphery of the lid body, the skirt (1) being suitable for engagement with the peripheral portion of a plastic open top container, comprising a lid rim (2) in a position near the periphery of the lid body, which divides the lid body in a centrally located mirror (3) and an outer part (4) on the other side of the lid rim (2) . Such a container lid is also known as a two-step container lid (see figure 1) , as opposed to a one-step container lid (see figure 2), in which the rim (2 ' ) engages with the container rim.
Background to the invention
A two-step container lid as described in the preamble of claim 1 is known from DE29910076U1. A two-step container lid may be used in situations where the container is covered with a cover foil, whereas the one-step lid may not. The reason is that the mirror of the two-step lid is at the same level as the top rim of the container and the foil. A one-step container lid cannot be used in combination with a foil at the level of the container rim, since the mirror of the one-step lid will be at a level below the level of the foil . A disadvantage of the known two-step container is that, after initial opening, when the user wants to re-close the container, the top rim of the container may fall into the recess (8) of the lid rim (2) , after which the container cannot be closed. This re-closing problem especially occurs, when the user wants to re-close the container using one hand, and presses the lid on the container from one side to the other.
It is therefore an object of the invention to avoid the above re-closing problem.
Statement of the invention
This object is attained according to the invention in that the lid rim (2) comprises one or more bridges (5) connecting the mirror (3) and the outer part (4) .
The bridge or bridges (5) will cause the lid to slide over the container rim until the container rim is caught by the skirt (1) , it is no longer possible that the container rim enters into the recess (8) of the lid rim (2) .
An additional advantage of the invention is that the bridges (5) reduce or even avoid the problem of nesting of the lids when stacked and put under pressure, e.g. in a production line. Conventional two-step lids, may when stacked and put under pressure nest, because the lid rim (6) of a lower lid may be pushed into the recess (8) of the lid rim (2) of a lid higher in the stack. This problem is also solved by the provision of bridges (5) . The tendency to nest is herein determined by measuring the pressure needed to compress a stack of lids, and the pressure needed is herein called the stack compression resistance (expressed in N/m2) .
Detailed description of the invention
The container and lid according to the invention may be made by the technologies known in the art, from materials known in the art.
The lid is made by thermoforming . In thermoforming a plastic sheet softened by heat is formed either into or around a mould. This forming step may be supported by vacuum, air pressure, and material distribution may be improved by plug assistance. There are three main groups of thermoforming: vacuum forming, pressure forming and matched mould forming.
The material of the lid and container may be any material known for this μse . Examples of possible materials are HDPE (high density polyethylene) , LDPE (Low density polyethylene) , PP (polypropylene) , PET (Polyester Terephtalate) , PVC (Polyvinylchloride) , OPVC (oriented PVC) , PC (Polycarbonate) , EVOH (Ethylenevinylalcohol) and multilayer materials of two or more of these polymers .
The shape of the container lid may be any shape, for example round, rounded rectangular, oval or square. The skirt (1) is preferably provided with indent features (7) see figure 4. These indent features (7) fix the lid on the container when closed.
In a preferred embodiment, the one or more bridges (5) are in the same plane as the mirror (3) . In another preferred embodiment the lid rim (2) comprises four or more bridges (5) . Four bridges (5) may already be effective if positioned on each of the sides of a square or rectangular container lid. Preferably the container lid comprising six or more bridges (5) and preferably the bridges (5) are distributed evenly around the periphery of the lid.
Another preferred embodiment of the invention is shown in figure 5, which shows the cross-section of the two preferred lids at the place of a bridge. In this preferred embodiment, the bridge is a partial bridge consisting of two bridge parts (9,10), each bridge part (9,10) being an indentation of a side wall of the lid rim (2) . Preferably, the indentation is formed by placing part of the side wall at a negative angle, compared to the side wall at a place where there is no bridge, as shown in figure 5. The advantage of this construction is that it is no longer possible that the container rim enters into the recess (8) of the lid rim (2) and that the stack compression resistance is very high, because a load on the stack is effectively transferred to lower lids, through the bridge parts (9,10) . The number of bridges may be easily determined by the skilled person taking into consideration the size and shape of the container lid. A large container lid will need more bridges than a small container lid.
In another preferred embodiment the container lid comprises an uneven number of bridges (5) evenly distributed around the periphery of the lid. This improves the flexing strength of the lid, compared to the same lid with an even number of bridges distributed evenly around the periphery of the lid. Preferably the width of the bridges (5) is 3 mm or more. The width should be such that the bridge does not break when a pressure commonly used to close the container is applied. The features of the preferred embodiments described above may be applied as such or in combination with eachother.
The lid and container may be used for packaging consumer goods, such as for instance foods, such as for instance margarines or spreads .
Description of the drawings
Figure 1 : Cross-section of detail of two stacked one- step container lids
Figure 2 : Cross-section of detail of two stacked two- step container lids Figure 3: Top view of container lid according to the invention having eight bridges Figure 4 Side view of conventional container lid showing skirt (1) and indent features (7) , as may also be applied on the lid according to the invention
Figure 5 Cross-section of detail of a preferred embodiment, showing partial bridges (9,10)

Claims

Claims
1. Thermoformed plastic container lid comprising a substantially sheet like lid body having a depending skirt (1) extending around the full periphery of the lid body, the skirt (1) being suitable for engagement with the peripheral portion of a plastic open top container, comprising a lid rim (2) in a position near the periphery of the lid body, which divides the lid body in a centrally located mirror (3) and an outer part (4) on the other side of the lid rim (2) , characterised in that the lid rim (2) comprises one or more bridges (5) connecting the mirror (3) and the outer part (4) .
2. Container lid according to claim 1, wherein the one or more bridges (5) are in the same plane as the mirror (3).
3. Container lid according to claim 1 or 2 , wherein the bridge is a partial bridge consisting of two bridge parts (9,10), each being an indentation of a side wall of the lid rim (2) .
4. Container lid according to claim 3, wherein the indentation is formed by placing part of the side wall at a negative angle, compared to the side wall at a place where there is no bridge.
5. Container lid according any of claims 1-4, comprising four or more bridges (5) .
6. Container lid according to claim 5, comprising six or more bridges (5) .
7. Container lid according to any of claims 1-6, wherein the bridges (5) are distributed evenly around the periphery of the lid.
8. Container lid according to any of claims 1-7, comprising an uneven number of bridges (5) .
9. Container lid according to any of claims 1-8, wherein the width of the bridges (5) is 3 mm or more.
EP04763928A 2003-08-22 2004-08-09 Container lid Withdrawn EP1656303A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04763928A EP1656303A1 (en) 2003-08-22 2004-08-09 Container lid

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP03077628 2003-08-22
EP04077184 2004-07-29
EP04763928A EP1656303A1 (en) 2003-08-22 2004-08-09 Container lid
PCT/EP2004/008904 WO2005019058A1 (en) 2003-08-22 2004-08-09 Container lid

Publications (1)

Publication Number Publication Date
EP1656303A1 true EP1656303A1 (en) 2006-05-17

Family

ID=34219542

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04763928A Withdrawn EP1656303A1 (en) 2003-08-22 2004-08-09 Container lid

Country Status (8)

Country Link
US (1) US20060273091A1 (en)
EP (1) EP1656303A1 (en)
AU (1) AU2004266810A1 (en)
BR (1) BRPI0412053A (en)
CA (1) CA2531680A1 (en)
MX (1) MXPA06001855A (en)
RU (1) RU2346865C2 (en)
WO (1) WO2005019058A1 (en)

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US9376240B1 (en) 2012-08-30 2016-06-28 Tuf-Tite, Inc. Cutter cup having seal cutter and depressor fin
USD712740S1 (en) 2012-12-19 2014-09-09 Sonoco Development, Inc. Container overcap
US9340332B2 (en) 2013-03-15 2016-05-17 Sonoco Development, Inc. Closure for container
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Also Published As

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BRPI0412053A (en) 2006-08-15
RU2006109023A (en) 2006-07-27
CA2531680A1 (en) 2005-03-03
MXPA06001855A (en) 2006-05-04
RU2346865C2 (en) 2009-02-20
AU2004266810A1 (en) 2005-03-03
WO2005019058A1 (en) 2005-03-03
US20060273091A1 (en) 2006-12-07

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