EP1159487B1 - Zwei- oder dreilagiges saugfähiges papierprodukt - Google Patents

Zwei- oder dreilagiges saugfähiges papierprodukt Download PDF

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Publication number
EP1159487B1
EP1159487B1 EP00900524A EP00900524A EP1159487B1 EP 1159487 B1 EP1159487 B1 EP 1159487B1 EP 00900524 A EP00900524 A EP 00900524A EP 00900524 A EP00900524 A EP 00900524A EP 1159487 B1 EP1159487 B1 EP 1159487B1
Authority
EP
European Patent Office
Prior art keywords
embossed
product
protuberances
ply
plies
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.)
Expired - Lifetime
Application number
EP00900524A
Other languages
English (en)
French (fr)
Other versions
EP1159487B3 (de
EP1159487A1 (de
Inventor
Gilles Roussel
Pierre Laurent
Rémy Ruppel
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.)
Essity Operations France SAS
Original Assignee
Georgia Pacific France SAS
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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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9540630&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1159487(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Georgia Pacific France SAS filed Critical Georgia Pacific France SAS
Priority to DE60000977.7T priority Critical patent/DE60000977T3/de
Publication of EP1159487A1 publication Critical patent/EP1159487A1/de
Application granted granted Critical
Publication of EP1159487B1 publication Critical patent/EP1159487B1/de
Publication of EP1159487B3 publication Critical patent/EP1159487B3/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/40—Multi-ply at least one of the sheets being non-planar, e.g. crêped
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1023—Surface deformation only [e.g., embossing]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24446—Wrinkled, creased, crinkled or creped
    • Y10T428/24455—Paper
    • Y10T428/24463—Plural paper components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24562—Interlaminar spaces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24612—Composite web or sheet

Definitions

  • the present invention relates to absorbent paper products and more. particularly in cellulose wadding, for sanitary or domestic use and aims to sheet consisting of at least two plies, one of which is embossed intended for the realization of essentially toilet paper, but also tissues, towels or paper towels.
  • a generally creped absorbent paper of low grammage designated: cellulose wadding or wadding.
  • cellulose wadding or wadding We take advantage of the capacity of elongation of the structure imparted for example by creping to emboss the sheet, i.e. permanently deform it in places and obtain protrusions on one side corresponding to recessed areas on the other side.
  • the present invention relates to paper transformed into a dry part.
  • embossing patterns consist of a repetition on a geometric basis of elementary protuberances of small cross section and simple geometric shape.
  • An example is described in US-A-3,414,459 which relates to a sheet with two or three plies, that is to say made up of a plurality of elementary sheets, called plies, bonded or glued together.
  • the folds are embossed with a frequency of distribution of the protrusions and a height of the protrusions adapted to the production of water-absorbing products such as paper towels, the number of elements ranging from 5 to 30 per cm 2 .
  • the Applicant has developed, for toilet paper in particular, patterns whose number of elements is greater, ranging from 30 to 80 per cm 2 .
  • absorbent paper products consist of two plies but obtained using a different combination technique.
  • a fold or a set of two superposed folds is embossed and, on the other hand, a second fold by means of two separate embossing devices.
  • the first fold as well as the second fold are embossed according to relief patterns made up of protuberances.
  • the density of patterns necessarily remains low: less than 20 protuberances / cm 2 for this type of product.
  • the two folds are associated by means of a matching cylinder so that the distal surfaces of the protrusions of the two superposed folds are arranged opposite the surfaces located between two protrusions in the plane of the second fold. This technique is also called the “nested” process.
  • the two are embossed folds. If the embossing brings thickness to each of the folds it does however cause a appreciable reduction in its breaking strength. Indeed, the mechanical work on the sheet is accompanied by a loosening of the fiber bonds in the embossed areas.
  • the first objective of the invention is therefore to produce a double sheet whose tensile strength is improved compared to an embossed double sheet of same thickness.
  • the second objective of the invention is to produce a double sheet, the thickness and / or visibility of the embossing pattern is improved compared to a embossed double sheet of the prior art while having good resistance to break.
  • a sheet satisfying one or the other of the two objectives referred to above, consisting of two plies of cellulose wadding weighing 10 to 40 g / m 2 each, one of which is embossed with relief patterns, consisting at least in part of discrete protrusions oriented towards the inside of the sheet, and the other is non-embossed, is characterized in that the embossed fold has on at least a portion of surface at least 30 protuberances per cm 2 whose surface at the top is less than 1 mm 2 , preferably less than 0.7 mm 2 .
  • a double sheet thus characterized has the same thickness as a double sheet made with two folds embossed in the same manner as the embossed fold of the invention and assembled in position spikes / spikes.
  • the area at the top of the protuberances is lower the more the number of the latter is locally high. It is preferably less than 0.7 mm 2 for 30 protuberances per cm 2 and preferably less than or equal to 0.4 mm 2 for 50 protuberances per cm 2 .
  • thickness in the present technical field, is meant the thickness measured on a stack of a number of sheets (12 folds for example) on which is applied a light pressure (2 kPa for example). It follows that the thickness takes into account a certain resistance to crushing of the structure. So without want to be bound by an explanation, the conservation of the thickness of the structure of the invention results from the better resistance to crushing of a fold which has been embossed with a high density pattern.
  • the product according to the invention has, on at least 50% of the total surface, at least 30 protuberances per cm 2 .
  • the number of protrusions is at least 50 per cm 2 .
  • the product has a second motif embossing between said surface portions.
  • this pattern can be linear type, i.e. made up of protuberances whose surface at the top is linear form.
  • the product 1 according to the invention comprises two folds, an embossed fold 2, and an unembossed or smooth fold 4.
  • the embossed fold comprises protuberances 11 distributed at a constant pitch determined over a portion of area.
  • the protuberances of the embossed fold are oriented inward.
  • the two plies are preferably linked together. In in particular, they can be linked together at the distal surfaces of the protrusions of the embossed fold.
  • the two plies are linked by gluing
  • the product according to the invention has a grammage of about 20 to 80 g / m 2 .
  • Each of the plies is made of cellulose wadding.
  • Cellulose wadding is a light weight crepe paper of between 10 and 40 g / cm 2 which has been dried on a heated cylinder and from which it has been detached by means of a metal blade, called a creping blade.
  • the embossed ply On surface portions which together represent at least 30% of the total surface, the embossed ply has a pattern density greater than 30 protuberances, cm 2 and less than 300, preferably a density less than 90 protuberances / cm 2 . It can also additionally present one or more types of different patterns and whose pattern densities are different. The protrusions can then be of different height, and the fold has patterns of different levels.
  • European patent applications EP-A-0 426 548 and EP-A-0 797 705 illustrate products embossed according to these principles but comprising two embossed plies.
  • the second fold is not embossed.
  • the fibrous and / or chemical composition of the pleats can be the same or different.
  • the non-embossed fold may have a fibrous composition essentially based on long fibers such as coniferous fibers, and the fold embossed, a fibrous composition essentially based on short fibers. This combination provides a more resistant product without sacrificing softness provided by short fibers.
  • Non-embossed ply may include a tough additive temporary or possibly permanent wet. If this additive is already present in a certain amount in the embossed fold, the non-embossed fold may contain one larger quantity.
  • a wet resistant additive is a compound of polyamine epichlorohydrin type, marketed under the name KYMENE SLX by the HERCULES company.
  • the embossed fold may include a softener or debonding.
  • the sheet thus formed has very good wet strength and therefore good solidity due in particular to the composition of the non-embossed ply. She offers moreover a surface smoothness by the choice of the fibrous composition and chemical of the embossed fold.
  • Each fold can also consist of one or more layers forming a laminate.
  • the layers in this case may also have a fibrous composition and / or different chemical.
  • the sheet has been shown with the two folds 2 and 4 superimposed. They are willing so that the protrusions are inside the sheet.
  • the two folds are linked to each other by means of a adhesive substance interposed between the tops of the fold protrusions represented who come into contact.
  • the adhesive substance is then preferably deposited on the highest vertices of the elements of the pattern, and is advantageously colored to bring out the details. So when the embossed fold presents protuberances whose vertices are at different levels, we realize a partially combined product on a small surface. We get a product particularly flexible when the surface is less than 5%.
  • FIG. 2 a machine for manufacturing such sheet structure. It essentially consists of elements that are part of the state of the art.
  • a first embossing cylinder 10 has been engraved in a pattern with spikes of a shape adapted to the desired protuberances.
  • the process consists of emboss a ply of cellulose wadding 20, unwound from a spool not shown, between the embossing cylinder 10 and a rubber cylinder 12 then coming assemble by means of a matching cylinder 14 a ply of unembossed cellulose wadding 40, also unwound from a reel not shown, on the first 20 then that it is still in contact with the embossing cylinder.
  • the products according to the invention have very advantageous characteristics compared to products made up of two plies existing on the market.
  • the pattern is that which is currently marketed under the brand LOTUS and includes 80 protuberances per cm 2 .
  • the surface at the top of the latter is less than 0.4 mm 2 .
  • the standard product is then combined in tip / tip mode.
  • the pattern is made up of surface protrusions at the apex also less than 1 mm 2 . They are distributed in alignments along which the pattern density is greater than 30 protuberances per cm 2 , the alignments being separated from each other with sufficient spacing to allow assembly in the nested position.
  • the average density is 15 p / cm 2 .
  • the pattern is the same as for B but the specific embossing pressure was higher. This gives a higher thickness than for the standard product assembled in "nested".
  • an embossed product was produced with a pattern consisting of protrusions on the engraved cylinder 1.3 mm high, at a rate of 7 per cm 2 .
  • the standard process with “nested” assembly of the two embossed plies gives a sheet thickness of 0.28 mm for a crosswise resistance of 80 N / m.
  • a product with a single embossed ply has a loss in thickness of almost 20% even if a slight increase in strength is observed, less than 9%.
  • an engraved cylinder 10 having first spikes and second spikes.
  • the first pins are distributed according to a first pattern having on at least one surface portion at least 30 pins per cm 2 , and preferably 50 pins per cm 2 .
  • the second pins are distributed in a second pattern, the number of second pins is lower.
  • the vertices of the second pins are at a level higher than those of the first pins.
  • the second protrusions of the fold 20 formed on the cylinder 10 receive the glue from the glue cylinder 16.
  • the connection with the non-embossed fold 40 is thus ensured by the second protrusions.
  • a second non-embossed ply 40 ′ represented by an arrow in FIG. 2 is introduced between the cylinder 10 thus etched and the matching cylinder 14, in particular by correctly choosing the quantity of adhesive applied to the seconds. protrusions of the fold 20 and the pressure of the matching cylinder, the glue is distributed over the two faces of the fold 40 and the formation of a bond between the fold 40 'and the fold 40 at the top of the second protuberances. This produces a three-ply product that is both thick and flexible. Instead of applying the adhesive to the tops of the protrusions, it can be sprayed on both sides of the first non-embossed ply.

Landscapes

  • Paper (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Laminated Bodies (AREA)

Claims (9)

  1. Erzeugnis aus saugfähigem Papier mit einer Flächenmasse von etwa 20 bis etwa 80 g/m2, welches eine geprägte Lage, die Reliefmuster aufweist, die zumindest teilweise aus zum Inneren des Aufbaus hin gerichteten, diskreten Ausstülpungen bestehen, und eine nicht geprägte Lage aufweist,
    dadurch gekennzeichnet, daß die geprägte Lage zumindest wenigstens auf 30% der Gesamtoberfläche mindestens 30 Ausstülpungen pro cm2 aufweist, deren Flächeninhalt an der Spitze weniger als 1 mm2, vorzugsweise weniger als 0,7 mm2 beträgt.
  2. Erzeugnis nach dem vorhergehenden Anspruch,
    dadurch gekennzeichnet, daß die geprägte Lage zumindest auf 50% der Gesamtoberfläche mindestens 30 Ausstülpungen pro cm2 aufweist.
  3. Erzeugnis nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, daß die Anzahl der Ausstülpungen mindestens 50 pro cm2 und ihr Flächeninhalt an der Spitze weniger als oder gleich 0,4 mm2 beträgt.
  4. Erzeugnis nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, daß es zwischen den besagten Oberflächenabschnitten ein zweites Muster aus Prägungsausstülpungen aufweist.
  5. Erzeugnis nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, daß die Lagen miteinander verbunden sind.
  6. Erzeugnis nach dem vorhergehenden Anspruch,
    dadurch gekennzeichnet, daß die Lagen durch Verbindung der distalen Oberflächen von zumindest einem Teil der Ausstülpungen der geprägten Lage mit der nicht geprägten Lage verbunden sind.
  7. Erzeugnis nach den Ansprüchen 4 und 6,
    dadurch gekennzeichnet, daß die Verbindung zumindest zum Teil durch Ankleben der Ausstülpungen des zweiten Musters erhalten wird.
  8. Erzeugnis nach einem der Ansprüche 4 bis 7,
    dadurch gekennzeichnet, daß es eine zweite nicht geprägte Lage aufweist.
  9. Verfahren zur Herstellung eines Erzeugnisses nach Anspruch 8,
    dadurch gekennzeichnet, daß es darin besteht, eine Papierlage auf einem gravierten Zylinder zu prägen, der Zähnchen, deren Spitzen sich in verschiedenen Höhen befinden, eine Anordnung, die aus zwei übereinandergelegten, nicht geprägten Papierlagen besteht, mit den Spitzen der Ausstülpungen unter Zwischenschaltung von einem Klebemittel in Kontakt zu bringen, und einen Druck auszuüben, um die Verbindung der geprägten Lage mit den beiden nicht geprägten Lagen sicherzustellen.
EP00900524A 1999-01-05 2000-01-05 Zwei- oder dreilagiges saugfähiges papierprodukt Expired - Lifetime EP1159487B3 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE60000977.7T DE60000977T3 (de) 1999-01-05 2000-01-05 Zwei- oder dreilagiges saugfähiges papierprodukt

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9900033A FR2788066B1 (fr) 1999-01-05 1999-01-05 Nouveau produit en papier absorbant comprenant deux plis
FR9900033 1999-01-05
PCT/FR2000/000007 WO2000040800A1 (fr) 1999-01-05 2000-01-05 Produit en papier absorbant comprenant deux plis

Publications (3)

Publication Number Publication Date
EP1159487A1 EP1159487A1 (de) 2001-12-05
EP1159487B1 true EP1159487B1 (de) 2002-12-11
EP1159487B3 EP1159487B3 (de) 2010-06-16

Family

ID=9540630

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00900524A Expired - Lifetime EP1159487B3 (de) 1999-01-05 2000-01-05 Zwei- oder dreilagiges saugfähiges papierprodukt

Country Status (11)

Country Link
US (1) US6656569B1 (de)
EP (1) EP1159487B3 (de)
AT (1) ATE229594T1 (de)
CA (1) CA2357832C (de)
DE (1) DE60000977T3 (de)
DK (1) DK1159487T5 (de)
ES (1) ES2187436T7 (de)
FR (1) FR2788066B1 (de)
PT (1) PT1159487E (de)
TR (1) TR200101919T2 (de)
WO (1) WO2000040800A1 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2260290T3 (es) * 2000-09-27 2006-11-01 Georgia-Pacific France Procedimiento de fabricacion de una hoja de papel absorbente de capas multiples.
IT1314877B1 (it) * 2000-11-22 2003-01-16 Perini Fabio Spa Metodo e dispositivo per la produzione di un materiale cartaceo infoglio plurivelo e prodotto cosi'ottenuto
US7407560B2 (en) * 2001-02-16 2008-08-05 The Procter & Gamble Company Lotioned and embossed tissue paper
US20050230069A1 (en) * 2001-02-16 2005-10-20 Klaus Hilbig Method of making a thick and smooth embossed tissue
DE60133828T3 (de) 2001-12-12 2011-06-22 Georgia-Pacific France Mehrlagige Bahn eines saugfähigen Papiers
EP1455014B1 (de) * 2003-03-07 2011-08-17 Georgia-Pacific France Saugfähiges geprägtes Papierprodukt
US7694379B2 (en) 2005-09-30 2010-04-13 First Quality Retail Services, Llc Absorbent cleaning pad and method of making same
US7962993B2 (en) 2005-09-30 2011-06-21 First Quality Retail Services, Llc Surface cleaning pad having zoned absorbency and method of making same
ATE441758T1 (de) * 2006-07-11 2009-09-15 Procter & Gamble Mehrschichtiger tissueartikel mit einer besonderen ausführung von geprägten vertiefungen, und mit einer weichmachenden lotion
FR2928383B1 (fr) * 2008-03-06 2010-12-31 Georgia Pacific France Feuille gaufree comportant un pli en materiau hydrosoluble et procede de realisation d'une telle feuille.
WO2009117794A1 (en) * 2008-03-24 2009-10-01 Wagner Do Brasil Ltda Process of manufacturing a multilayer absorbent product and product obtained
US8287986B2 (en) * 2008-05-27 2012-10-16 Georgia-Pacific Consumer Products Lp Ultra premium bath tissue
EP2326500B1 (de) * 2008-08-07 2016-11-02 SCA Hygiene Products GmbH Vorrichtung und verfahren zur lagenverbindung sowie mehrlagiges produkt
US9283730B2 (en) 2012-08-17 2016-03-15 Kimberly-Clark Worldwide, Inc. High basis weight creped tissue
US20140050890A1 (en) 2012-08-17 2014-02-20 Kenneth John Zwick High Basis Weight Tissue with Low Slough
US8894813B2 (en) 2012-08-17 2014-11-25 Kimberly-Clark Worldwide, Inc. Absorbent barrier tissue
WO2016153462A1 (en) 2015-03-20 2016-09-29 Kimberly-Clark Worldwide, Inc. A soft high basis weight tissue

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3414459A (en) * 1965-02-01 1968-12-03 Procter & Gamble Compressible laminated paper structure
FR2653793B1 (de) 1989-10-30 1992-01-03 Kaysersberg Sa
GB2255745A (en) * 1991-05-16 1992-11-18 Kent Paper Products Limited Paper or like laminate
FR2728152B1 (fr) * 1994-12-16 1997-01-24 Kaysersberg Sa Papier absorbant gaufre a motifs combines

Also Published As

Publication number Publication date
ES2187436T7 (es) 2011-08-01
DK1159487T3 (da) 2003-04-14
ATE229594T1 (de) 2002-12-15
CA2357832A1 (fr) 2000-07-13
EP1159487B3 (de) 2010-06-16
US6656569B1 (en) 2003-12-02
PT1159487E (pt) 2003-04-30
ES2187436T3 (es) 2003-06-16
WO2000040800A1 (fr) 2000-07-13
FR2788066A1 (fr) 2000-07-07
CA2357832C (fr) 2008-09-16
EP1159487A1 (de) 2001-12-05
DE60000977D1 (de) 2003-01-23
DE60000977T3 (de) 2018-07-19
FR2788066B1 (fr) 2001-02-16
DK1159487T5 (da) 2010-10-11
DE60000977T2 (de) 2003-07-24
TR200101919T2 (tr) 2002-03-21
ES2187436T8 (es) 2011-09-22

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