EP1824755A1 - Closure with dispersable composition - Google Patents

Closure with dispersable composition

Info

Publication number
EP1824755A1
EP1824755A1 EP05813590A EP05813590A EP1824755A1 EP 1824755 A1 EP1824755 A1 EP 1824755A1 EP 05813590 A EP05813590 A EP 05813590A EP 05813590 A EP05813590 A EP 05813590A EP 1824755 A1 EP1824755 A1 EP 1824755A1
Authority
EP
European Patent Office
Prior art keywords
closure
formulation
container
composition
closure according
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.)
Granted
Application number
EP05813590A
Other languages
German (de)
French (fr)
Other versions
EP1824755B1 (en
Inventor
Karl-Ludwig Reckitt Benckiser Produktions GmbH GIBIS
Chris Efstathios Reckitt Benckiser Produktions GmbH HOUSMEKERIDES
Dietmar Reckitt Benckiser Produktions GmbH VAN LOYEN
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.)
Reckitt Benckiser NV
Original Assignee
Reckitt Benckiser 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=33548485&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1824755(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Reckitt Benckiser NV filed Critical Reckitt Benckiser NV
Priority to PL05813590T priority Critical patent/PL1824755T3/en
Publication of EP1824755A1 publication Critical patent/EP1824755A1/en
Application granted granted Critical
Publication of EP1824755B1 publication Critical patent/EP1824755B1/en
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4445—Detachable devices
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/024—Devices for adding soap or other washing agents mounted on the agitator or the rotating drum; Free body dispensers

Definitions

  • the present invention relates to a closure, particularly to a closure suitable for a container for placement in a washing machine such as a dishwasher.
  • Closures for bottles and other containers are well known.
  • Typical closures may comprise a screw cap, a cork or a crimped cap. These closures are conventionally removed (manually or with the aid of a tool such as a bottle opener) so that the contents of the bottle or container may be accessed.
  • a further class of closures are those which seal a bottle or container and which are not removed before use, but instead are removed in the medium in which the contents of the container are to be dispensed.
  • This type of clo ⁇ sure has been found to be beneficial where the contents of the container are potentially harmful to a user, thus the contents are kept separate from the user and only al ⁇ lowed to be released in the medium of use. In this way the closure can be used to ensure the contents are re ⁇ leased at the correct point in time in the medium.
  • closure material In order to form such a closure the closure material re ⁇ quires several properties.
  • the closure has to be resilient enough to provide a seal until the contents are required by a user.
  • the contents of containers sold for domestic use typically comprise aqueous based compositions the selection of suitable closure materials is usually limited to those materials which have a low solubility in water.
  • closure has to be able to be dispersed in the medium in which the contents are required.
  • contents of containers sold for domestic use are typi ⁇ cally sold for use in a domestic washing / dishwasher ma ⁇ chine the material has been selected such that it may be dispersed (by dissolution / melting) at the usual tem- perature of operation of such machines (around 20-80 0 C) .
  • wax is insoluble in water and has an appropriate melting point .
  • An example of a container having such a closure is a machine cleaner for placing within a dishwashing ma ⁇ chine comprising a bottle having a wax closure.
  • a closure for a container comprising a channel which extends therethrough, the channel being filled with a composition capable of being dispersed in an aqueous medium at an elevated tempera ⁇ ture, wherein the dispersible composition comprises a fragrance.
  • the container is used to retain a compo ⁇ sition to be dispersed into an automatic washing machine.
  • a container holding an auto ⁇ matic washing formulation the container having a closure which comprises a channel extending therethrough, the channel being filled with a composition capable of being dispersed in an aqueous medium at an elevated tempera ⁇ ture, wherein the dispersible composition comprises a fragrance.
  • the closure of the present invention has been found to be surprisingly advantageous.
  • One of the main advantages of having a fragrance separated from the re ⁇ mainder of the formulation in the container and also ad ⁇ jacent to the exterior of the formulation packaging is that the impact of the fragrance upon a consumer, when selecting the product in a shop, is heightened.
  • a further advantage is that of safety, more chiefly child safety.
  • the odour of the automatic washing formulation is much less attractive (although not in use - see above) .
  • the odour of the formulation is much more 'chemical-like' (i.e., smelling of chemicals) rather than smelling of pleasant fragrance odours such as flowers or fruit.
  • the formulation becomes considerably less attractive to children.
  • the danger of ingestion of the formula ⁇ tion by a child is greatly lessened, without the need for a 'child-resistant-closure' .
  • the closure Normally around 0.5 - 2.0 grams of dispersible composi- tion is used in the closure, more preferably 0.8 - 1.5 grams and most preferably 1.0 - 1.2 grams.
  • the closure comprises between 1 to 40wt% of fragrance (e.g. about 5wt% or about 20wt%) .
  • the dispersible composition may incorporate one or more other components usually found in an automatic washing formulation.
  • the dispersible composition incorporates an anti-foam agent.
  • an anti-foam agent This has found to be particularly ad ⁇ vantageous when the automatic washing formulation in the container is aqueous as often anti-foam agents are hydro ⁇ phobic due to their hydrophobicity the anti-foam agents can be difficult to integrate into an aqueous formulation (often turbidity or separation/settling is observed.
  • anti-foam agent may comprise from 40- 75% of the dispersible composition
  • Preserved examples of anti-foam agents include silicones.
  • the dispersible composition may comprise a plurality of separate / individual compositions. These may be present as an admixture or may be arranged adjacent one another, e.g. in a layer or concentric structure.
  • the channel may have a number of separate portions or associated retain ⁇ ing recesses to retain the separate / individual composi ⁇ tions.
  • the dispersible composition disperses by melting.
  • the dispersible composition preferably dis ⁇ perses at the temperature of operation of an automatic washing machine, usually around 20-80 0 C, more preferably around 50 0 C. This is particularly useful for an auto ⁇ matic dishwasher.
  • the container can be placed in the automatic dishwasher without the consumer having to open the container and expose themselves to the often aggres ⁇ sive formulation contained therein.
  • the dispersible composition becomes dis- persed and the formulation is released. This means that release of the composition into the pre-wash (which typically operates at a temperature lower than 50 0 C) is avoided.
  • the dispersible composition most preferably comprises a paraffin wax.
  • the paraffin wax dispersible composition preferably has a melting point of around 50 0 C.
  • a wax having a melting point higher than 50 0 C is employed to ensure that the overall composition has this melting point.
  • the 'pure' wax preferably has a melting point of about 55°C.
  • the closure may have an additional sealing means.
  • the dis- persible composition is covered by a removable sticker (e.g., an aluminium / paper / plastic sticker) before use.
  • the sticker may be peeled away by the consumer be ⁇ fore placing the container in the dishwasher.
  • Other ad ⁇ ditional sealing means may comprise a screw cap.
  • the container and thus the size of the closure can be varied to suit the requirements of use.
  • the container is sized to accommodate around 250 cm 3 of an automatic machine formulation.
  • the formulation in the container is an automatic dishwashing formulation.
  • the auto ⁇ matic dishwashing formulation is a drain cleaner/machine cleaner formulation.
  • a preferred example of a machine/drain cleaner formula ⁇ tion is below.
  • Nonionic surfactant 0.1-20%
  • This may be a bi-phase formulation.
  • a further example of a machine/drain cleaner formulation is below.
  • This may be a bi-phase formulation.
  • Nonionic surfactant 0-5% Citric acid 5-30%
  • This may be a bi-phase formulation.
  • Figures 1 and 2 are cross-sectional views of a closure in accordance with the present invention.
  • Fig 1 shows a first embodiment of a closure 1.
  • the clo ⁇ sure 1 comprises a channel 2.
  • the channel 2 is circular and comprises a wider upper section 2a and a narrower lower section 2b.
  • Disposed within the channel 2 is a dispersible material 3, comprising a fragrance.
  • the dis- persible material 3 is preferably a water insoluble wax, such as paraffin wax.
  • the closure 1 has a dependent curtain 4 for attachment to a bottle (not shown) .
  • the dependent curtain 4 may com ⁇ prise a screw thread for screwing onto a bottle.
  • the curtain 4 may comprise a x snap-fit' mecha- nism for attachment to a bottle.
  • Fig 2 shows a second embodiment of a closure 1.
  • This closure 1 has all of the features of the first closure.
  • the closure 1 comprises a groove 5.
  • the groove 5 may be used to con- tain a second dispersible material 3a, in addition to the primary dispersible material 3 disposed in the channel 2.
  • the closure 1 In use the closure 1 is exposed to an aqueous medium such as the washing liquor of an automatic dishwashing machine (not shown) .
  • the dispersible material 3 (and 3a where present) remains intact until the temperature of the aqueous medium is high enough to initiate melting of this material 3. When this occurs any contents of the bottle are exposed to the aqueous medium and may be released from the bottle.

Abstract

A closure for a container. The closure comprises a channel which extends therethrough. The channel is filled with a composition capable of being dispersed in an aqueous medium at an elevated temperature. The dispersible composition comprises a fragrance.

Description

CLOSURE WITH DISPERSABLE COMPOSITION
The present invention relates to a closure, particularly to a closure suitable for a container for placement in a washing machine such as a dishwasher.
Closures for bottles and other containers are well known. Typical closures may comprise a screw cap, a cork or a crimped cap. These closures are conventionally removed (manually or with the aid of a tool such as a bottle opener) so that the contents of the bottle or container may be accessed.
A further class of closures are those which seal a bottle or container and which are not removed before use, but instead are removed in the medium in which the contents of the container are to be dispensed. This type of clo¬ sure has been found to be beneficial where the contents of the container are potentially harmful to a user, thus the contents are kept separate from the user and only al¬ lowed to be released in the medium of use. In this way the closure can be used to ensure the contents are re¬ leased at the correct point in time in the medium.
In order to form such a closure the closure material re¬ quires several properties.
Firstly the closure has to be resilient enough to provide a seal until the contents are required by a user. As the contents of containers sold for domestic use typically comprise aqueous based compositions the selection of suitable closure materials is usually limited to those materials which have a low solubility in water.
Additionally the closure has to be able to be dispersed in the medium in which the contents are required. As the contents of containers sold for domestic use are typi¬ cally sold for use in a domestic washing / dishwasher ma¬ chine the material has been selected such that it may be dispersed (by dissolution / melting) at the usual tem- perature of operation of such machines (around 20-800C) .
These factors together with cost considerations have dic¬ tated that wax has been used as the closure material : wax is insoluble in water and has an appropriate melting point . An example of a container having such a closure is a machine cleaner for placing within a dishwashing ma¬ chine comprising a bottle having a wax closure.
It is an object of the present application to provide an improved closure.
According to a first aspect of the present invention there is provided a closure for a container, the closure comprising a channel which extends therethrough, the channel being filled with a composition capable of being dispersed in an aqueous medium at an elevated tempera¬ ture, wherein the dispersible composition comprises a fragrance.
Most preferably the container is used to retain a compo¬ sition to be dispersed into an automatic washing machine. Thus according to a second aspect of the present invention there is provided a container holding an auto¬ matic washing formulation, the container having a closure which comprises a channel extending therethrough, the channel being filled with a composition capable of being dispersed in an aqueous medium at an elevated tempera¬ ture, wherein the dispersible composition comprises a fragrance.
In use the closure of the present invention has been found to be surprisingly advantageous. One of the main advantages of having a fragrance separated from the re¬ mainder of the formulation in the container and also ad¬ jacent to the exterior of the formulation packaging is that the impact of the fragrance upon a consumer, when selecting the product in a shop, is heightened.
Furthermore the impression of the fragrance on the con¬ sumer when using the formulation in the container is en¬ hanced throughout the whole washing cycle. This is espe- cially useful in the context of automatic dishwashing as a pleasing waft of fragrance is noticed by a consumer both during dishwasher operation and when opening the dishwasher at the end of the wash cycle.
With both of these advantages it has been noticed that a small amount of fragrance is needed in the closure / con¬ tainer of the present invention to achieve the desired fragrance effect. The amount required is much smaller than that which would be needed if the fragrance were present in the composition. This is exceptionally sig¬ nificant: of all of the components present in an auto¬ matic washing formulation fragrances (although generally present at low concentration) are probably the most ex¬ pensive. Thus anything that is able to reduce the amount of fragrance needed has a large effect on the price of the overall formulation.
A further advantage is that of safety, more chiefly child safety. As the fragrance is separate from the automatic washing formulation it has been found that the odour of the automatic washing formulation is much less attractive (although not in use - see above) . Indeed the odour of the formulation is much more 'chemical-like' (i.e., smelling of chemicals) rather than smelling of pleasant fragrance odours such as flowers or fruit. As a result, the formulation becomes considerably less attractive to children. Thus the danger of ingestion of the formula¬ tion by a child is greatly lessened, without the need for a 'child-resistant-closure' .
Normally around 0.5 - 2.0 grams of dispersible composi- tion is used in the closure, more preferably 0.8 - 1.5 grams and most preferably 1.0 - 1.2 grams. Generally the closure comprises between 1 to 40wt% of fragrance (e.g. about 5wt% or about 20wt%) .
The dispersible composition may incorporate one or more other components usually found in an automatic washing formulation.
In a preferred embodiment (for an automatic dishwasher formulation) the dispersible composition incorporates an anti-foam agent. This has found to be particularly ad¬ vantageous when the automatic washing formulation in the container is aqueous as often anti-foam agents are hydro¬ phobic due to their hydrophobicity the anti-foam agents can be difficult to integrate into an aqueous formulation (often turbidity or separation/settling is observed.
Where present the anti-foam agent may comprise from 40- 75% of the dispersible composition
Preserved examples of anti-foam agents include silicones.
The dispersible composition may comprise a plurality of separate / individual compositions. These may be present as an admixture or may be arranged adjacent one another, e.g. in a layer or concentric structure. The channel may have a number of separate portions or associated retain¬ ing recesses to retain the separate / individual composi¬ tions.
Most preferably the dispersible composition disperses by melting. The dispersible composition preferably dis¬ perses at the temperature of operation of an automatic washing machine, usually around 20-800C, more preferably around 500C. This is particularly useful for an auto¬ matic dishwasher. The container can be placed in the automatic dishwasher without the consumer having to open the container and expose themselves to the often aggres¬ sive formulation contained therein. During the operation of the dishwashing machine when the temperature therein exceeds 500C the dispersible composition becomes dis- persed and the formulation is released. This means that release of the composition into the pre-wash (which typically operates at a temperature lower than 500C) is avoided.
The dispersible composition most preferably comprises a paraffin wax. The paraffin wax dispersible composition preferably has a melting point of around 500C. As the fragrance typically reduces the melting point of the wax, generally a wax having a melting point higher than 500C is employed to ensure that the overall composition has this melting point. The 'pure' wax preferably has a melting point of about 55°C.
For protection, e.g. in storage / transport, the closure may have an additional sealing means. Generally the dis- persible composition is covered by a removable sticker (e.g., an aluminium / paper / plastic sticker) before use. The sticker may be peeled away by the consumer be¬ fore placing the container in the dishwasher. Other ad¬ ditional sealing means may comprise a screw cap.
Clearly the container and thus the size of the closure can be varied to suit the requirements of use. Generally the container is sized to accommodate around 250 cm3 of an automatic machine formulation.
Most preferably the formulation in the container is an automatic dishwashing formulation. Generally the auto¬ matic dishwashing formulation is a drain cleaner/machine cleaner formulation. Such as drain/machine cleaner gen- erally incorporates components such as acid, builder, surfactant, preservative, dye, stabiliser and thickener. A preferred example of a machine/drain cleaner formula¬ tion is below.
Component Wt%
Nonionic surfactant 0.1-20%
Citric acid 1-30%
UV stabilizer 0-0.1%
Dye 0-0.1% NaCl 0-5%
NaSO4 0-5%
PEG 0-5%
Water balance
This may be a bi-phase formulation.
A further example of a machine/drain cleaner formulation is below.
Component Wt%
Cationic surfactant 1-5%
Nonionic surfactant 0-1%
Cumene sulfonate 3-5% Citric acid 5-30%
Dye 0-0.1%
Water balance
This may be a bi-phase formulation.
A further example of a machine/drain cleaner formulation is below. Component Wt%
Nonionic surfactant 0-5% Citric acid 5-30%
Monopropylene gycol 0-5% Cumene sulfonate 0-10%
Water balance
This may be a bi-phase formulation.
The invention is further illustrated in the following figures, wherein: -
Figures 1 and 2 are cross-sectional views of a closure in accordance with the present invention.
Fig 1 shows a first embodiment of a closure 1. The clo¬ sure 1 comprises a channel 2. The channel 2 is circular and comprises a wider upper section 2a and a narrower lower section 2b. Disposed within the channel 2 is a dispersible material 3, comprising a fragrance. The dis- persible material 3 is preferably a water insoluble wax, such as paraffin wax.
The closure 1 has a dependent curtain 4 for attachment to a bottle (not shown) . The dependent curtain 4 may com¬ prise a screw thread for screwing onto a bottle. Alter¬ natively the curtain 4 may comprise a xsnap-fit' mecha- nism for attachment to a bottle. Fig 2 shows a second embodiment of a closure 1. This closure 1 has all of the features of the first closure. In addition disposed around the channel 2, the closure 1 comprises a groove 5. The groove 5 may be used to con- tain a second dispersible material 3a, in addition to the primary dispersible material 3 disposed in the channel 2.
In use the closure 1 is exposed to an aqueous medium such as the washing liquor of an automatic dishwashing machine (not shown) . The dispersible material 3 (and 3a where present) remains intact until the temperature of the aqueous medium is high enough to initiate melting of this material 3. When this occurs any contents of the bottle are exposed to the aqueous medium and may be released from the bottle.

Claims

1. A closure for a container, the closure comprising a channel which extends therethrough, the channel being filled with a composition capable of being dispersed in an aqueous medium at an elevated temperature, wherein the dispersible composition comprises a fragrance.
2. A closure according to claim 1, wherein around 0.5 - 2 grams of dispersible composition is used in the closure.
3. A closure according to claim 1 or 2, wherein the dis¬ persible composition comprises between 1 to 40wt% of fra¬ grance.
4. A closure according to claim 1, 2 or 3, wherein the dispersible composition incorporates one or more other components usually found in an automatic washing formula¬ tion.
5. A closure according to claim 4, wherein the dispersi¬ ble composition incorporates an anti-foam agent.
6. A closure according to any one of claims 1 to 5, wherein the dispersible composition disperses by melting.
7. A closure according to claim 6, wherein the dispersi¬ ble composition disperses at around 500C.
8. A closure according to any one of claims 1 to 7, wherein the dispersible composition comprises a paraffin wax.
9. A closure according to any one of claims 1 to 8, wherein the formulation in the container is an automatic dishwashing formulation.
10. A container holding an automatic washing formulation, the container having a closure according to any one of claims 1 to 9.
11. A container according to claim 10, wherein the auto¬ matic dishwashing formulation is a drain cleaner/machine cleaner formulation.
12. A closure as hereinbefore described and further with reference to Figures 1 and 2.
EP05813590A 2004-11-19 2005-11-21 Closure with dispersable composition Revoked EP1824755B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05813590T PL1824755T3 (en) 2004-11-19 2005-11-21 Closure with dispersable composition

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0425418A GB2420341A (en) 2004-11-19 2004-11-19 Detergent container closure having dispersible wax plug
PCT/GB2005/004459 WO2006054103A1 (en) 2004-11-19 2005-11-21 Closure with dispersable composition

Publications (2)

Publication Number Publication Date
EP1824755A1 true EP1824755A1 (en) 2007-08-29
EP1824755B1 EP1824755B1 (en) 2008-03-19

Family

ID=33548485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05813590A Revoked EP1824755B1 (en) 2004-11-19 2005-11-21 Closure with dispersable composition

Country Status (13)

Country Link
US (1) US20080277373A1 (en)
EP (1) EP1824755B1 (en)
CN (1) CN101039850A (en)
AT (1) ATE389597T1 (en)
AU (1) AU2005305629A1 (en)
BR (1) BRPI0518182A (en)
CA (1) CA2582381A1 (en)
DE (1) DE602005005519T2 (en)
ES (1) ES2300063T3 (en)
GB (1) GB2420341A (en)
PL (1) PL1824755T3 (en)
WO (1) WO2006054103A1 (en)
ZA (1) ZA200702416B (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2015092684A1 (en) 2013-12-18 2015-06-25 Packaging Imolese S.P.A. Dispenser device for dishwasher products

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US8590743B2 (en) 2007-05-10 2013-11-26 S.C. Johnson & Son, Inc. Actuator cap for a spray device
US8469244B2 (en) 2007-08-16 2013-06-25 S.C. Johnson & Son, Inc. Overcap and system for spraying a fluid
US8556122B2 (en) 2007-08-16 2013-10-15 S.C. Johnson & Son, Inc. Apparatus for control of a volatile material dispenser
US8381951B2 (en) 2007-08-16 2013-02-26 S.C. Johnson & Son, Inc. Overcap for a spray device
US8387827B2 (en) 2008-03-24 2013-03-05 S.C. Johnson & Son, Inc. Volatile material dispenser
US8899428B2 (en) * 2009-02-18 2014-12-02 El Cantillo, S.A. Wine bottle with the wine in permanent contact with the cork
IT1396357B1 (en) * 2009-10-29 2012-11-19 Packaging Imolese S P A DISPENSER DEVICE FOR DISHWASHERS.
US8714383B2 (en) * 2011-08-19 2014-05-06 Corson Family Enterprises, Llc Compound bung for wine and spirits barrels
MX2016011448A (en) 2014-03-12 2016-12-02 Colgate Palmolive Co Container.

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Publication number Priority date Publication date Assignee Title
WO2015092684A1 (en) 2013-12-18 2015-06-25 Packaging Imolese S.P.A. Dispenser device for dishwasher products

Also Published As

Publication number Publication date
ZA200702416B (en) 2008-09-25
CA2582381A1 (en) 2006-05-26
DE602005005519T2 (en) 2009-05-07
PL1824755T3 (en) 2008-06-30
WO2006054103A1 (en) 2006-05-26
ATE389597T1 (en) 2008-04-15
AU2005305629A1 (en) 2006-05-26
EP1824755B1 (en) 2008-03-19
US20080277373A1 (en) 2008-11-13
DE602005005519D1 (en) 2008-04-30
CN101039850A (en) 2007-09-19
BRPI0518182A (en) 2008-11-04
GB2420341A (en) 2006-05-24
GB0425418D0 (en) 2004-12-22
ES2300063T3 (en) 2008-06-01

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