ES2350266T3 - Repeated closure bag. - Google Patents

Repeated closure bag. Download PDF

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Publication number
ES2350266T3
ES2350266T3 ES07119454T ES07119454T ES2350266T3 ES 2350266 T3 ES2350266 T3 ES 2350266T3 ES 07119454 T ES07119454 T ES 07119454T ES 07119454 T ES07119454 T ES 07119454T ES 2350266 T3 ES2350266 T3 ES 2350266T3
Authority
ES
Spain
Prior art keywords
bag
panels
weakness
line
film
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.)
Active
Application number
ES07119454T
Other languages
Spanish (es)
Inventor
Neil John Rogers
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.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
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
Priority to EP06125377 priority Critical
Priority to EP06125377 priority
Application filed by Procter and Gamble Co filed Critical Procter and Gamble Co
Application granted granted Critical
Publication of ES2350266T3 publication Critical patent/ES2350266T3/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65D75/00Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52Details
    • B65D75/58Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5827Tear-lines provided in a wall portion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING 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
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74Auxiliary operations
    • B31B50/81Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B50/814Applying closure elements to blanks, webs or boxes
    • B31B50/8144Applying hook-and-loop-type fasteners
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING 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
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00Making flexible containers, e.g. envelopes or bags
    • B31B70/74Auxiliary operations
    • B31B70/81Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • 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
    • B65D2313/00Connecting or fastening means
    • B65D2313/02Connecting or fastening means of hook-and-loop type

Abstract

A bag (10) comprising a line (28) of weakness to facilitate opening and a means (32) of repeated closure, wherein the bag (10) comprises a front panel (12), a rear panel (14) and opposite side panels (16, 18), the panels being sealed together to provide an upper section (24) and a lower section (26), and where the line of weakness (28) extends around all the front panels (12 ), posterior (14) and lateral (16, 18) so that the upper section (24) is completely detachable from the rest of the bag, and characterized in that the repeated closing means (32) is fixed to the front panels ( 12), posterior (14) and lateral (16, 18) adjacent to the weakness line (28).

Description

FIELD OF THE INVENTION

This
invention be refer to bags for use in he

storage
from products such how, though no from shape

limiting,
Detergent in powder or granulated, food for

pets, coffee, cereals, etc., where the bag It has a line of weakness that provides easy opening of the bag and a means of repeated closure

BACKGROUND OF THE INVENTION

Flexible bags are used today to pack a wide variety of consumer products, including granulated detergents. To be useful as a container these bags must be resistant to opening during transport and manipulation in the store. Detergent bags Currently marketed have several drawbacks. In First, current bags are hard to open without scissors, a knife or other utensil. Often the consumer tries to open the bag by tearing it, which has as end result that the content spills. In addition, the bag and Any text printed on the bag can be deformed by pushing and stretching forces applied during opening.

Second, once opened, the bags of Current detergent does not offer an efficient or effective means for repeated closure of the bag. Closing capacity Repeated bag is desired by many consumers. This It is especially true for bulky sized containers. So far the repeated closure methods of these bags have Unsatisfactory result. These methods include zippers and adhesive tapes as well as simple folding mechanisms (WO 03/010067A). The main drawback of the methods previously mentioned is that media pollution

repeated closure with the contents of the bag prevents the medium form a reliable and reusable seal. In addition, the Simple folding mechanisms do not provide protection against the escape of the product.

Therefore there is still a need to have a flexible bag to pack consumer products that is easy to open, that is, without the help of a knife, scissors or other utensil. There is still an additional need to have of a mechanism by which the bag can return to

close
from shape safe after from be open by he

consumer.
He mechanism from closing repeated no should be

preferably affected by no contamination.

SUMMARY OF THE INVENTION

The present invention meets the needs mentioned above providing a bag that it comprises a line of weakness for easy opening and a repeated closure means, in which the bag comprises a panel front, a back panel and opposite side panels, sealing the panels to provide a section upper and a lower section, and in which the line of weakness extends around the front panels, posterior and lateral so that the upper section is completely separable from the rest of the bag, and in which the Repeated closure means is fixed to the front panels, rear and lateral adjacent to the line of weakness.

The present invention also provides a process for form bags from a film band as defined in claim 6.

BRIEF DESCRIPTION OF THE DRAWINGS

Figs. 1 and 2 are perspective views of a bag of The present invention.

Fig. 3 is a perspective view of a bag of the present invention after the upper section has been completely withdrawn.

Fig. 4 is a schematic view of a section of the film band illustrating the completion of the process of the present invention

Fig. 5 is a schematic view of a section of the film band illustrating an alternative embodiment of the process of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

Next, reference will be made in detail to the Preferred embodiments of the present invention, examples of which are illustrated in the accompanying figures. How I know will understand, the front and back expressions in the present Memory are used to describe the panels of the bag for guidance purposes only and are otherwise interchangeable As described in more detail below, The present invention relates to a flexible bag for contain a granulated detergent, powder or other content, preferably a granulated detergent, provided with a line of weakness to facilitate opening. In Figs. 1 and 2 se illustrates an especially preferred bag 10 manufactured according to the present invention The bag 10 is illustrated with a panel front 12, a rear panel 14, and side panels 16 and 18, with each panel having a top edge 20 and a bottom edge

22. Bag 10 also has an upper section 24 and a bottom section 26, which are sealed by joining the front panel

12 to the back panel 14 along the upper edges 20 and the bottom edges 22. The bag 10 is provided with a line 28 of weakness in each of the front panels, back and sides 12, 14, 16, 18. Fig. 3 illustrates the bag after the upper section 24 has been completely removed and shows repeated closing means 32.

Bag materials

The
bags from the Present invention be form from

materials,
included, from shape no limiting, films

polymeric,
materials tissues, materials no tissues,

preferably polyethylene films, more preferably monolayers, coextrusions, bilayer laminates, three layer laminates and Metallic laminates, all materials with or without varnish coating. The bags according to the present invention they can be formed by any method known in the technique. A method to form flexible bags from a Continuous band of material is well known in the art and it described in US Patent 5,054,619, issued to Muckenfuhs. According to a preferred embodiment of the present invention, described in greater detail below, a band is transported continuous of material 30, shown in Fig. 4, in the direction of the machine, DM, and is provided with a line 28 of weakness to through virtually the entire width of the band 30 substantially in the transverse direction of the machine, DTM, and the repeated closing means 32 adjacent to the weakness line 28 substantially in the direction cross machine, DTM. The repeated closing means 32 shown in Fig. 4 comprises a strip of loops 34 and two hook strips 36.

Weakness line

The easy opening element of the bags according to the The present invention is the result of the weakening of the

film-shaped material in the desired trajectory of the rupture or separation of the bag.

The line of weakness extends through each of the front, back and side panels of the bag. This allows the entire top of the bag to be separated after opening.

The line of weakness will deteriorate the resistance of the film so that it can withstand operations normal filling, packaging and handling, while following being easy to open by the consumer. This behavior is achieved by reducing the resistance to trapezoidal tear of the original movie. Tear resistance reduction trapezoidal is also most likely accompanied by a loss of tensile strength.

The line of weakness is identified by following test methods: a) ASTM standard test method D-882 for tensile properties in plastic sheets fine and b) ASTM D-5733 standard test method for tear resistance of nonwovens by the trapezoidal procedure According to ASTM D-882 and ASTM methods D-5733, the line of weakness must be parallel to the most side short of the sample (that is, the width). Line of weakness should cover the entire width of the sample and should be centered regarding the length of the sample. The slit for start cutting the trapezoidal tear sample should Be on the line of weakness.

The line of weakness is characterized by three parameters obtained in the aforementioned standard tests. He First parameter is the creep voltage value. Preferably the creep tension value of the film weakened in the ASTM D-882 voltage test should not be less than 90% of the creep voltage value of the film not weakened. Second, the voltage value end or break of the weakened film should not be

preferably less than 90% of the voltage value of creep of the film not weakened Y1.

Third, the average trapezoidal tear force according to the ASTM D-5733 method, the weakened film should preferably be less than 39.2 N (4 Kgf).

In addition, the line of weakness may present a pattern. These patterns can be in the form of a continuous line, a dashed line or a combination thereof. Without However, the most preferred pattern is the dashed line, in where the dashed line is composed of a plurality of grooved segments. The length of each slotted segment ranges from about 0.12 mm to 4.4 mm, preferably varies from approximately 0.3 mm to 2 mm and with maximum Preference ranges from about 0.6mm to 1mm. The distance between adjacent grooved segments varies from about 0.4 mm to 4 mm, preferably varies from approximately 1 mm to 3 mm and most preferably varies from approximately 1.5 mm to 2 mm. Groove depth It will vary depending on the thickness of the film.

At some point along the line of weakness you can Provide a start notch. The start notch provides an area that is easier to tear because the slot is deeper. If the weakness line covers the panel posterior in which there is also a vertical joint, the Start notch provides an easy tear through the multiple nerves of the vertical joint next to the line of weakness.

Production method of the weakness line

The line of weakness can be produced using methods that include, but are not limited to, grooved, perforation, chemical treatment, preferably grooved with laser, laser drilling, mechanical grooving, drilling mechanics, embossing methods or combinations of

these methods The weakness line is incorporated preferably in the film before it conforms to a bag.

A method of manufacturing a line of weakness in a Flexible film uses at least one laser. First address to the film a laser beam with enough wattage to evaporate a portion of the film material. The use of technology laser allows very precise control of depth or penetration being able to perform from grooves very little deep to full perforations of the film. Be you can use a laser that uses any form of radiation electromagnetic Lasers suitable for use in the Present invention include those based on CO2 gas.

The speed of the film and the movement of lightning laser depend on the pattern and groove depth desired as well as the type of film used. Methods

adequate
for he grooved with To be from films is it so

described
in the patents US 3,626,143, 3,790,744, US

3,909,582
all granted to American Dog Company Y the

US 5,158,499 and US 5,229,180 patents granted to American National Can Company, US-5,001,325 patent granted to LPF Verpakkingen B.V, U.S. Patent 4,743,123 issued to Wavin

B. V. and Japanese patents 09133018, 07008283 and 06103200 all granted to Dainippon Printing Company.

Another suitable method to manufacture the weakness line is The use of blades. The blades are installed in a cylinder of engraving mounted directly on the processing equipment of the film so that the cuts are made before the formation of the bag. Different patterns of blades to get different patterns in the line of weakness. The pressure applied to the blades also varies during the process to control the dimensions and depth of cuts to ensure the bag opens easily.

Embossing is another alternative method for Weakness line production. Stamping technology embossed weakens the film in specific areas by pressure, temperature, time and a deformation profile. The desired results are achieved by changing the thickness and / or the structure of the material in the trajectory of the print. He basic equipment used for embossing consists of a sealing jaw capable of pressing against a plate later. A profile or deformation pattern is fixed to the gag and heats up. The film is compressed between the profile deformation and back plate. The main variables What is known to affect this process are: temperature of heating, cooling temperature, pressure, time of heating, cooling time, film tension during embossing, film tension after Embossing, back plate material, back plate thickness, plate temperature posterior, jaw pattern and jaw thickness. The embossing unit would be installed after a film unwinding station, preferably would incorporate into the packaging equipment line. Examples Suitable embossing patterns are described in US Patent 5,878,549, issued to the American National Can Company.

Repeated closure medium

The repeated closing means is preferably resistant to contamination by the contents of the bag. His main objective is to protect the granulated products contained in the bags against spills, moisture and other external factors that may affect the integrity of the product. This means of repeated closure preferably comprises a mechanical fastener, more preferably of the type of hook and loop or hook and hook, fixed to a flexible bag that allows the

users open and close so many bags safely times as the product in the bag is used.

The medium consists of placing the fixing materials in the opposite panels of the bag. In a preferred embodiment, the panels are on the front and back panel, although They contemplate other configurations. The fixers can be disposable or industrial materials. You want to use disposable materials to optimize costs. Fixers mechanics can be of any shape and size and be in any provision The particular configuration of the components of the repeated closing means should be such that the bag can be sealed during the entire use of the product contained in it. Sealing means that it does not occur a product spill when the bag leans toward a side. Specifically, the repeated closing means is characterized for the energy needed to start a component of the fixative of the other component. Preferably this energy does not It should be less than 23.5 Nmm (2.4 Kgfmm) per Kg of product contained in the bag.

In a preferred embodiment, the loop materials they have a base weight of less than 40 grams per square meter and more preferably less than 30 g. Preferably the weight Base of the hook material is less than 200g. In particular it has been discovered that such loop materials like the N29 supplied by Aplix, France, they are especially effective. For hooks are preferred base weight extruded polypropylene hooks such as Aplix 963 supplied by Aplix, France.

The repeated closing means is intended to work with the easy opening feature described above that It facilitates the opening of the bag. At least one piece of mechanical fastener is placed in a bag panel while a corresponding fastener part is placed on the opposite panel of the bag. Preferably a part of the mechanical fastener is

a horizontal strip attached to the inner side of the bag, with maximum preference two interactive horizontal strips are glued to the inner faces of the front panel and panel posterior just below the line of weakness.

These mechanical fasteners can adhere to the bag by adhesives. The adhesive can be an adhesive hot melt or a pressure sensitive adhesive. A hot melt adhesive to mechanical fixative just before Apply the piece to the bag. The pressure sensitive adhesive adheres to the fixative as a piece.

The application of these mechanical fasteners to the bag can be done in different ways One way is to adhere these fixers to the film before producing the bag. In this case, the parts of the mechanical fasteners are fixed to the movie either while preparing the movie band or while unrolling the film band of a coil in the machine. In an alternative embodiment of the present invention, the bags can be pre-formed and the fasteners can adhere to the bag after it has been formed

However, in a preferred embodiment of the invention, the hook and loops adhere to the flat film. With maximum preference is applied, in the flat film, a strip of loops and two strips of hooks or a strip of hooks and two strips of loops adjacent to the line of weakness. This allows keep the closing means repeated outside the joint longitudinal of the bag while the closure means is placed repeated substantially around the opening of the bag to allow the consumer to close the bag completely. This provides an important advantage in terms of coil stability before converting the film into a bag if the application process of repeated closure means is separated from the bag formation process and are made on different machines.

According to this embodiment of the present invention, provides a process to form bags from a band of film in which the film band is transported to along one or more training machines in one direction of the machine, the direction perpendicular to the plane of the film the transverse direction of the machine, comprising The process stages:

(to)
provide a line of weakness through

(b)
fix the repeated closing means adjacent to practically the entire width of the line of weakness;

(C)
cut and seal the film to form a bag having front, back and side panels that comprise the line of weakness and the means of closure repeated; Y

practically
all he width from the movie

substantially in the direction
cross from the

machine;

in which steps (a), (b) and (c) are performed in any order, on the same or on separate machines, preferably completing stages (a) and (b) before stage (c); Y repeat steps (a), (b) and (c) at regular intervals at Band length to form multiple bags.

In a first embodiment, the hooks are applied in substantially the transverse direction of the machine of the film band while loop strips are applied in virtually the machine direction of the band movie.

A second preferred embodiment is shown in Fig. 5. A series of hook patches 36 and / or loops 34 are applied in the film band 30 adjacent to the weakness line 28. This has the advantage of allowing spaces to be created between adjacent patches to reduce the use of hooks or loops to reduce the cost while allowing a closure of The effective bag.

Alternatively, the use of patches allows the application of hooks as a series of applications in Machine address of the film band. This is generally easier to do compared to the application in the transverse direction of the machine, as described here before, and also allows mutual matching guidance of hooks and loops in the bag to optimize performance of closing. In fact, patches could be applied on the film band at any angle between directions transverse of the machine and the machine to control the execution of the closure.

In a preferred process, a machine is used to perform steps (a) and (b) and a separate machine is used in a different place to perform stage (c).

In another preferred process, three machines are used separate to independently perform steps (a), (b) and

(c) in three different places. In both cases, the machines that perform steps (a) and (b) unwind the film at beginning of the stage and then they will rewind the film in a coil at the end of the stage such that the film can be easily transported to the next machine to Perform the next stage of the process. These two processes preferred have the advantage of separating the different stages of the process to make the final bag. This separation allows the use of a smaller number of high machines speed to perform stages (a) and (b) to produce films previously labeled with closure materials repeated and with lines of weakness that can be later processed in multiple bag making machines that typically work at lower speeds than machinery to perform stages (a) and (b). This leads to an investment. less capital since only a small number of machines for performing stages (a) and (b). It also produces a better efficiency of the process as stages (a) and (b) do not

interfere in the complex process of manufacturing the bags of the stage (c). It also allows the option to make an inventory autonomous of films previously labeled with materials repeated closure to ensure there is always film 5 available for stage (c). It also allows the stages (a), (b) and (c) are performed independently allowing the bags are easily manufactured without any line of weakness or repeated closure materials or bags with both the line of weakness and repeated closure materials, without

10 major changes in machine or machine configuration process.

Preferably the step of forming the bags (c) It comprises the steps of folding the film to form a panel front, a back panel and opposite side panels,

15 seal the adjacent adjacent edges of the film to form a back seal, and cut and seal the film to form the upper and lower joints.

In a preferred embodiment of the present invention, the process steps (b) and (c) are performed in such a way that the

20 repeated closing means extends around practically all panels, front, back and side, in the inside the bag.

Claims (10)

  1. one.
    A bag (10) comprising a line (28) of weakness to facilitate opening and closing means (32) repeated, wherein the bag (10) comprises a front panel (12), a rear panel (14) and panels (16, 18) opposite sides, sealing the panels together to provide a top section (24) and a section lower (26), and where the line (28) of weakness is extends around all front panels (12), posterior (14) and lateral (16, 18) so that the section upper (24) is completely separable from the rest of the bag, and characterized in that the closing means (32) repeated is fixed to the front (12), rear (14) panels and lateral (16, 18) adjacent to the line (28) of weakness.
  2. 2.
    A bag according to claim 1, wherein the bag
    (10)
    comprises a front panel (12), a rear panel
    (14)
    and opposite side panels (16, 18), forming the side panels (16, 18) folds between the panels front (12) and rear (14), and in which the panels front (12), back (14) and side (16, 18) forming folds are sealed together by their opposite ends (20, 22) to form an upper joint and a lower joint, and in which the line (28) of weakness extends around of all front (12), rear (14) and lateral (16, 18) forming folds so that the joint Upper is completely separable from the rest of the bag.
  3. 3.
    A bag (10) according to any one of the claims 1 or 2, in which the repeated closing means (32) is extends around virtually all panels front (12), back (14) and side (16, 18) in the inside the bag (10), the closure means (32) being repeated fixed to the front panels (12), rear (14)
    and lateral (16, 18) adjacent to the line (28) of weakness so that the bag (10) can be closed again later that the upper section (24) has been separated completely from the rest of the bag.
  4. Four.
    A bag (10) according to any one of claims 1 to 3, wherein the repeated closing means (32) comprises a mechanical fastener, comprising the mechanical fastener hooks and / or interoperable loops.
  5. 5.
    A bag (10) according to claim 4, wherein loop materials have a base weight less than 40 grams per square meter, preferably less than 30 grams per square meter and preferably the base weight of the hook material is less than 200 grams per meter square.
  6. 6.
    A process for forming bags (10) according to claim 1, from a film band (30), in which the film band (30) is transported along one or more machines in one machine direction, the perpendicular direction of the film plane the transverse direction of the machine, comprising the process the stages of:
    (to)
    provide a line of weakness (28) through virtually the entire width of the movie practically in the transverse direction of the machine,
    (b)
    fix the repeated closing means (32) adjacent to practically the entire width of the line of weakness;
    (C)
    cut and seal the film to form a bag
    (10)
    having front, back and side panels comprising the line (28) of weakness and the medium
    (32)
    repeated closure; Y
    where stages (a), (b) and (c) are performed in any order, on the same or on separate machines,
    preferably steps (a) and (b) being completed before stage (c); and repeat steps (a), (b) and
    (c) at regular intervals along the band of film to form multiple bags.
  7. 7.
    A process to form a bag (10) according to the claim 6, wherein step (c) comprises the stages of folding the film to form a front panel (12), a rear panel (14) and opposite side panels (16, 18), seal the adjacent adjacent edges of the film to form a back joint, and cut and seal the film to form the upper joints and lower.
  8. 8.
    A process to form a bag (10) according to any one of claims 6 or 7, wherein the film so that the repeated closing means (32) is extend around virtually all panels front (12), back (14) and side (16, 18) in the inside the bag (10).
  9. 9.
    A process to form a bag (10) according to any one of claims 6 to 8, wherein the means (32) of repeated closure comprises a mechanical fastener, the mechanical fastener comprising hooks and / or loops Interoperative
  10. 10.
    A process to form a bag (10) according to any one of claims 6 to 9, wherein the line (28) of Weakness is formed by grooving, drilling, chemical treatment or embossing, preferably by laser grooving, drilling with laser, mechanical grooving or mechanical drilling.
ES07119454T 2006-12-05 2007-10-29 Repeated closure bag. Active ES2350266T3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06125377 2006-12-05
EP06125377 2006-12-05

Publications (1)

Publication Number Publication Date
ES2350266T3 true ES2350266T3 (en) 2011-01-20

Family

ID=37964022

Family Applications (1)

Application Number Title Priority Date Filing Date
ES07119454T Active ES2350266T3 (en) 2006-12-05 2007-10-29 Repeated closure bag.

Country Status (11)

Country Link
US (1) US20080131035A1 (en)
CN (1) CN101553414B (en)
AR (1) AR064159A1 (en)
AT (1) AT477196T (en)
BR (1) BRPI0719919A2 (en)
DE (1) DE602007008344D1 (en)
ES (1) ES2350266T3 (en)
MX (1) MX2009006051A (en)
RU (1) RU2404101C1 (en)
WO (1) WO2008068696A1 (en)
ZA (1) ZA200903774B (en)

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AT477196T (en) 2010-08-15
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CN101553414B (en) 2012-04-04

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