EP1159487B3 - Zwei- oder dreilagiges saugfähiges papierprodukt - Google Patents

Zwei- oder dreilagiges saugfähiges papierprodukt Download PDF

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Publication number
EP1159487B3
EP1159487B3 EP00900524A EP00900524A EP1159487B3 EP 1159487 B3 EP1159487 B3 EP 1159487B3 EP 00900524 A EP00900524 A EP 00900524A EP 00900524 A EP00900524 A EP 00900524A EP 1159487 B3 EP1159487 B3 EP 1159487B3
Authority
EP
European Patent Office
Prior art keywords
protuberances
embossed
product
plies
ply
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
EP1159487B1 (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(B3) "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
Publication of EP1159487B1 publication Critical patent/EP1159487B1/de
Application granted granted Critical
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 cellulose wadding for sanitary or domestic use and aims a sheet consisting of at least two plies, one of which is embossed for the realization of toilet paper.
  • cellulose wadding or wadded fabric In the sanitary and domestic paper industry, use is made, for the production of these products, of a generally creped absorbent paper of slight weight, designated: cellulose wadding or wadded fabric. It takes advantage of the capacity of elongation of the structure conferred for example by creping to emboss the sheet, that is to say permanently deform in places and obtain protrusions on a face corresponding to recessed areas on the other side.
  • the present invention relates to paper converted into 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 the patent US-A-3,414,459 which relates to a sheet with two or three plies, ie consisting of a plurality of elementary sheets, called folds, bound or glued together.
  • the plies are embossed with a frequency of distribution of the protuberances and a height of the protuberances adapted to the production of water-absorbing products such as essule-tout, the number of elements ranging from 5 to 30 cm 2 .
  • the Applicant has developed, for toilet paper in particular, patterns whose number of elements is greater, ranging from 30 to 80 cm 2 .
  • absorbent paper products consist of two plies but obtained according to a different association technique.
  • a fold or a set of two superposed folds is waffled and, on the other hand, a second fold by means of two distinct embossing devices.
  • the first fold and the second fold are embossed in relief patterns consisting of protuberances.
  • the density of patterns necessarily remains low: less than 20 protuberances / cm 2 for this type of product.
  • the two plies are associated by means of a marrying cylinder so that the distal surfaces of the protuberances of the two superimposed folds are disposed opposite the surfaces between two protuberances in the plane of the second fold. This technique is still called “nested" process.
  • the two plies are waffled. If the embossing brings thickness to each of the folds, however, it causes a significant reduction in its resistance to breakage. Indeed, the mechanical work on the sheet is accompanied by a loosening of interfiber bonds in the embossed areas.
  • the invention thus has for first objective the production of a double sheet whose breaking strength is improved compared to a double embossed sheet of the same thickness.
  • the second object of the invention is the production of a double sheet whose thickness and / or visibility of the embossing pattern is improved with respect to a double embossed sheet of the prior art while having a good breaking strength. .
  • a toilet paper satisfying one or the other of the two objectives referred to above consisting of two plies of cellulose wadding of weight 10 to 40 g / m 2 each one of which is embossed with relief patterns, consisting at least in part of discrete protuberances oriented towards the inside of the sheet, and the other being unembossed, is characterized in that the embossed ply has at least 30% of the total area at the minus 30 and less than 90 protuberances per cm 2 , the top surface of which 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 embossed folds in the same manner as the embossed ply of the invention and assembled in spikes point position.
  • the surface at the top of the protuberances is even weaker as the number of these 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 certain number of sheets (12-ply for example) on which a slight pressure (2 kPa for example) is applied. It follows that the thickness takes into account a certain resistance to crushing of the structure. Thus without wishing to be bound by an explanation, the preservation of the thickness of the structure of the invention results from the better crush resistance of a ply which has been embossed with a high density pattern.
  • the product according to the invention has at least 50% of the total surface area at least 30 protuberances per cm 2 .
  • the number of protuberances is at least 50 per cm 2 .
  • the product has a second embossing pattern between said surface portions.
  • this pattern may be of linear type, ie consisting of protuberances whose surface at the apex is of linear shape.
  • the product 1 according to the invention comprises two plies, an embossed ply 2, and a non-embossed or smooth ply 4.
  • the embossed ply comprises protuberances 11 distributed at a fixed constant pitch over a surface portion.
  • the protuberances of the embossed ply are oriented towards the inside.
  • the two plies are preferably linked together. In particular, they can be linked together at the distal surfaces of the protuberances of the embossed fold.
  • the two plies are linked by gluing
  • the product according to the invention has a basis weight of about 20 to 80 g / m 2 .
  • Each of the plies is made of cellulose wadding.
  • Cellulose wadding is a creped paper of low basis weight 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 together representing at least 30% of the total area, the embossed ply has a pattern density greater than 30 protuberances / cm 2 and a density less than 90 protuberances / cm 2 . It can also present in addition one or more types of different patterns and whose pattern densities are different. The protuberances 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 embossed products according to these principles but having two embossed folds.
  • the second ply is not embossed.
  • the fibrous and / or chemical composition of the plies may be the same or different.
  • the unembossed ply may have a fibrous composition essentially based on long fibers such as resin fibers, and the embossed ply, a fibrous composition essentially based on short fibers. This combination makes it possible to obtain a more resistant product without sacrificing the softness provided by the short fibers.
  • the non-embossed ply may comprise a temporary or possibly permanent wet resistant additive. If this additive is already present in a certain amount in the embossed fold, the non-embossed fold may contain a larger amount.
  • a wet-resistant additive is a compound of the polyamine epichlorohydrin type, marketed under the name KYMENE SLX by the company HERCULES.
  • the embossed fold can mean a softener or debinding.
  • the sheet thus formed has a very good wet strength and therefore good strength, in particular because of the composition of the non-embossed ply. It also offers a softness of surface by the choice of the fibrous and chemical composition of the embossed fold.
  • Each fold may further consist of one or more layers forming a laminate.
  • the layers in this case may also have a different fibrous and / or chemical composition.
  • the sheet is represented with the two folds 2 and 4 superimposed. They are arranged so that the protuberances are inside the sheet.
  • the two plies can be bonded to each other in any manner known to those skilled in the art, such as, for example, mechanically by knurling, that is to say by passing the sheet between a wheel and a smooth counter cylinder.
  • the two plies are bonded to one another by means of an adhesive substance interposed between the vertices of the protuberances of the folds represented which come into contact.
  • the adhesive substance is then preferably deposited on the highest vertices of the elements of the pattern, and is advantageously colored in order to bring out the details.
  • a first embossing cylinder 10 has been etched in a pattern with spikes of a shape adapted to the desired protuberances.
  • the method consists of embossing a fold of cellulose wadding 20 unwound from a not shown reel, between the embossing roll 10 and a rubber roll 12 and then coming together by means of a marrying roll 14 a fold non-embossed cellulose wadding 40, also unwound from a not shown spool, on the first 20 while it is still in contact with the embossing roll.
  • the adhesive substance preferably water-based, has been applied to the tops of the embossed fold by means of a sizing roll 16.
  • the products according to the invention have very advantageous characteristics compared to products consisting of two plies existing on the market.
  • Example A the pattern is one currently sold under the trademark LOTUS and comprises 80 protuberances per cm 2. The surface at the top of these is less than 0.4 mm 2 . The standard product is then associated in point / tip mode.
  • the pattern is composed of surface protuberances 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 .
  • Example C the pattern is the same as for B but the embossing specific pressure was higher. This gives a higher thickness than for the standard product assembled in "nested".
  • Standard 1 Invention 2 Standard 3 Invention 4 Number of folds per sheet. 2 2 2 2 Weight of the sheet in g / m 2 . 32.3 32.1 44 43.8 O) Control sheet made with two non-embossed folds Thickness in mm 0.19 0.19 0.31 0.31 Resistance in N / m: Sense through ST 92 90 76 74 SM walking direction 174 158 214 216 Elongation 27% 27% 34% 33%
  • Transformation of two plies embossing pattern with 80p / cm 2 and assembly points / points for the standard product.
  • an embossed product was produced with a pattern consisting of protuberances on the engraved cylinder 1.3 mm high, at a rate of 7 per cm 2 .
  • the standard method with "nested" assembly of the two embossed folds gives a sheet thickness of 0.28 mm for a cross-directional strength of 80 N / m.
  • a product with a single embossed fold has a thickness loss of nearly 20% even if there is a slight increase in resistance, less than 9%. By increasing the pressure, a similar thickness will only be obtained at the cost of a strongly degraded resistance.
  • an engraved cylinder 10 having first pins and second pins is used.
  • the first pins are distributed in 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 spikes are at a higher level than those of the first spikes.
  • the second protuberances of the fold 20 formed on the cylinder 10 receive the glue of the gluing cylinder 16.
  • the connection with the non-embossed fold 40 is thus provided by the second protuberances.
  • a second non-embossed ply 40 ' represented by an arrow on the spindle, is introduced between the cylinder 10 thus etched and the marrying roll 14. figure 2 .

Claims (9)

  1. Toiletten 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 und minder als 90 Ausstülpungen pro cm2 aufweist, deren Flächeninhalt an der Spitze weniger als 1 mm2, vorzugsweise weniger als 0,7 mm2 beträgt.
  2. Toiletten Papier nach dem vorhergehenden Anspruch,
    dadurch gekennzeichnet,
    daß die geprägte Lage zumindest auf 50% der Gesamtoberfläche mindestens 30 Ausstülpungen pro cm2 aufweist.
  3. Toiletten Papier 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. Toiletten Papier nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet,
    daß es zwischen den besagten Oberflächenabschnitten ein zweites Muster aus Prägungsausstülpungen aufweist.
  5. Toiletten Papier einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet,
    daß die Lagen miteinander verbunden sind.
  6. Toiletten Papier nach dem vorhergehenden Anspruch,
    dadurch gekennzeichnet,
    daß die Lagen durch Verbindung der distalen Oberflächen vom zumindest einem Teil der Ausstülpungen der geprägten Lage mit der nicht geprägten Lage verbunden sind.
  7. Toiletten Papier nach den Ansprüchen 4 und 6,
    dadurch gekennzeichnet,
    daß die Verbindung zumindest zum Teil durch Ankleben der Ausstülpungen des zweiten Musters erhalten wird.
  8. Toiletten Papier nach einem der Ansprüche 4 bis 7,
    dadurch gekennzeichnet,
    daß es eine zweite nicht geprägte Lage aufweist.
  9. Verfahren zur Herstellung eines Toiletten Papier 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
FR9900033 1999-01-05
FR9900033A FR2788066B1 (fr) 1999-01-05 1999-01-05 Nouveau produit en papier absorbant comprenant deux plis
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 EP1159487B1 (de) 2002-12-11
EP1159487B3 true 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
EP1330352B1 (de) * 2000-09-27 2006-03-15 Georgia-Pacific France Verfahren zur herstellung einer mehrlagigen saugfähigen papierbahn
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
US20050230069A1 (en) * 2001-02-16 2005-10-20 Klaus Hilbig Method of making a thick and smooth embossed tissue
US7407560B2 (en) * 2001-02-16 2008-08-05 The Procter & Gamble Company Lotioned and embossed tissue paper
ATE393856T1 (de) * 2001-12-12 2008-05-15 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
DK1878830T3 (da) * 2006-07-11 2010-01-11 Procter & Gamble Flerlagstissueartikel, som har en bestemt udformning af prægede fordybninger og indeholder en blödgörende 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
CN102143838B (zh) * 2008-08-07 2016-08-31 Sca卫生产品有限责任公司 用于层结合的设备和方法以及多层产品
US20140050890A1 (en) 2012-08-17 2014-02-20 Kenneth John Zwick High Basis Weight Tissue with Low Slough
US9283730B2 (en) 2012-08-17 2016-03-15 Kimberly-Clark Worldwide, Inc. High basis weight creped tissue
US8894813B2 (en) 2012-08-17 2014-11-25 Kimberly-Clark Worldwide, Inc. Absorbent barrier tissue
BR112017017435B1 (pt) 2015-03-20 2023-05-09 Kimberly-Clark Worldwide, Inc Produto de papel tissue crepado

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
EP1159487B1 (de) 2002-12-11
PT1159487E (pt) 2003-04-30
DE60000977T2 (de) 2003-07-24
DK1159487T5 (da) 2010-10-11
FR2788066A1 (fr) 2000-07-07
DE60000977D1 (de) 2003-01-23
FR2788066B1 (fr) 2001-02-16
TR200101919T2 (tr) 2002-03-21
WO2000040800A1 (fr) 2000-07-13
ES2187436T3 (es) 2003-06-16
US6656569B1 (en) 2003-12-02
ATE229594T1 (de) 2002-12-15
CA2357832A1 (fr) 2000-07-13
DK1159487T3 (da) 2003-04-14
CA2357832C (fr) 2008-09-16
ES2187436T8 (es) 2011-09-22
EP1159487A1 (de) 2001-12-05
DE60000977T3 (de) 2018-07-19

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