EP0670773A1 - Verbundwerkstoff aus zellstoffwatte. - Google Patents

Verbundwerkstoff aus zellstoffwatte.

Info

Publication number
EP0670773A1
EP0670773A1 EP94900863A EP94900863A EP0670773A1 EP 0670773 A1 EP0670773 A1 EP 0670773A1 EP 94900863 A EP94900863 A EP 94900863A EP 94900863 A EP94900863 A EP 94900863A EP 0670773 A1 EP0670773 A1 EP 0670773A1
Authority
EP
European Patent Office
Prior art keywords
product
product according
folds
bonding
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.)
Granted
Application number
EP94900863A
Other languages
English (en)
French (fr)
Other versions
EP0670773B1 (de
Inventor
Pierre Laurent
Remy Ruppel
Pierre Probst
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
Kaysersberg SA
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=9435813&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0670773(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kaysersberg SA filed Critical Kaysersberg SA
Priority to EP97100688A priority Critical patent/EP0776758B1/de
Publication of EP0670773A1 publication Critical patent/EP0670773A1/de
Application granted granted Critical
Publication of EP0670773B1 publication Critical patent/EP0670773B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
    • A41B15/00—Handkerchiefs
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D27/00—Details of garments or of their making
    • A41D27/24—Hems; Seams
    • A41D27/245—Hems; Seams made by welding or gluing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D1/00—Multiple-step processes for making flat articles ; Making flat articles
    • B31D1/04—Multiple-step processes for making flat articles ; Making flat articles the articles being napkins, handkerchiefs, towels, doilies, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0723—Characteristics of the rollers
    • B31F2201/0733—Pattern
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0758—Characteristics of the embossed product
    • B31F2201/0761—Multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0784—Auxiliary operations
    • B31F2201/0787—Applying adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0784—Auxiliary operations
    • B31F2201/0792—Printing
    • 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.]
    • Y10T428/24777—Edge feature
    • Y10T428/24793—Comprising discontinuous or differential impregnation or bond
    • 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.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]

Definitions

  • the invention relates to the field of sanitary and domestic paper; it relates to the production of laminated products composed of at least two plies or cellulose wadding sheet, in particular for the use of a handkerchief, napkin or other similar applications.
  • the handkerchiefs generally packaged in cases, which are currently found on the market are made up of several sheets of creped absorbent paper, also called cellulose wadding, supe ⁇ osed, and held together by a mechanical connection at the periphery.
  • This connection is obtained by an embossing operation, of the steel / steel or steel / paper type, according to which the sheets are passed between two cylinders meshing one on the other.
  • One of the cylinders has reliefs on the surface and the other has corresponding cavities.
  • the sheets are thus locally deformed into zones which constitute attachment points.
  • a known embossing pattern consists of a multitude of spikes of small diameter and of small height tightened against each other linearly, or in both directions in the running direction and in the transverse direction.
  • Another known pattern consists of fine edge bars arranged in tight parallels. This bonding method is satisfactory when the grammage of the plies is not too high, of the order of 10 to 20 g / m 2 , and when using cellulose wa
  • the invention remedies these drawbacks by providing a product, such as a handkerchief or towel, produced by combining at least two individual plies, or sheets, of superimposed cellulose wadding, cut to the desired format and linked together along '' a peripheral zone characterized in that said folds are bonded by bonding along said zone so as to have a minimum resistance to delamination of 1 g / cm, said peripheral zone representing less than 50% of the total surface of the product
  • Bonding is carried out using any adhesive product generally used in the field of sanitary and household papers to associate folds together.
  • any adhesive product generally used in the field of sanitary and household papers to associate folds together.
  • the bonding is carried out along the four edges of the folds. It is assumed, for simplicity, that it is a rectangular or square format.
  • the invention also includes the case where only two opposite edges are linked.
  • the bonding is carried out along a peripheral zone covering a strip the width of which can vary between a lower limit corresponding to sufficient resistance to delamination and an upper limit where the product would become too stiff.
  • the linked area must represent less than 50% of the product: handkerchief or napkin. According to a particularly preferred embodiment, said zone represents between 30 and 40% of the total surface.
  • the bonding can be carried out by continuous coating of adhesive but also by application thereof on a plurality of surfaces of small extent arranged in a linear pattern or according to points distributed uniformly.
  • a preferred method of binding is then in the latter case, that described in French patent application 89 14202 which makes it possible to ensure a uniform deposit of adhesive in the bonding area without stiffening the sheet.
  • the proposed solution makes it possible to produce laminated products such as choppers, towels or the like, that is to say in the form of individual sheets, having excellent resistance to delamination without being made rigid. in the center, that is to say in the functional area of use, or be likely to irritate the skin by bonding.
  • the tests show that it is very easy to obtain products whose resistance to delamination is much higher than that of a mechanical bond of the prior art.
  • sheets having a different fibrous and / or chemical composition are combined by peripheral bonding.
  • a sheet incorporating an additive is added to increase the resistance in the wet state of the paper to at least one sheet without additive or incorporating an additive to improve the softness. This results in a laminate complex combining properties that cannot be found together on a single-layer product.
  • Figure 1 shows a product, handkerchief for example, with a peripheral connection area of the different folds. A corner has been delaminated to show the folds.
  • Figure 2 shows an installation capable of allowing the production of a product according to the invention.
  • Figure 3 shows a detail of the installation of Figure 2.
  • a choir or a napkin (1) square format consisting of 3 sheets (the , lb, le) of cellulose wadding bonded together, by bonding at the periphery, along an area (3) of determined width.
  • the bonding was effected by points (5) so as not to stiffen the complex; in accordance with the invention, the central area is not glued; it may, if necessary, include an embossing intended to improve the appearance thereof.
  • the peripheral zone (3) covers less than 50% of the total surface of the towel or towel, preferably this zone represents 30% to 40%.
  • a napkin of dimension 40 cm x 40 cm will be bordered by a connecting strip formed by gluing the sheets from the edge line over a width of 4 cm.
  • the linked area thus covers 36% of the total surface of the towel
  • the connection effectively leaves the edge of the folds so as to avoid any yawning of the folds or else the formation of folds at the periphery which adversely affect the appearance of the product.
  • any known installation can be used, for example the one shown in Figure 2.
  • the folds (11) and (12), one being optionally double, of cellulose wadding coming from their respective reel, not shown, are guided to come around the rubber cylinders (13) and (14) then between them and embossing cylinders (15) and (16) in steel provided with appropriate reliefs. These reliefs can be distributed according to the pattern in Figure 1, for example.
  • One of the folds (12) is glued by means of a rubber applicator cylinder (18) shown in FIG. 3.
  • This cylinder comprises, in accordance with one embodiment of the invention, a part (181) in relief, the design of which corresponds to that of the peripheral area for gluing the sheets, so that the adhesive entrained by the applicator cylinder is distributed according to this pattern.
  • one or both sheets can be embossed over their entire surface. Gluing is only carried out on the periphery corresponding to the part (181) of the gluing cylinder.
  • one or both cylinders (15, 16) are provided with reliefs, along a peripheral zone of the desired product format. We can then use a smooth gluing cylinder.
  • the folds (11) and (12) are assembled in the pincer interval formed between the embossing cylinders (15) and (16) which rotate at equal and opposite speeds.
  • the multi-ply sheet from the device is driven to a processing facility where it is cut and folded in accordance with the intended application: handkerchiefs, towels or the like.
  • the plies (11) and (12) can come from the same coil with 2 plies, and have been subjected to a common calendering so as to effect a smoothing of the external face and confer greater sweetness. Then, only the two layers are separated to be embossed separately and individually.
  • a fold, single or double is embossed between a rubber cylinder and a suitably engraved steel cylinder, that is to say with reliefs according to the periphery of the desired product format.
  • the adhesive is deposited on the tops of the reliefs.
  • a second fold is applied to the fold respectively, using a third rubber cylinder of the matchmaker type. This third cylinder ensures both the embossing of the second respectively third fold and its marriage with the first.
  • a steel or paper cylinder can also be used.
  • a test was carried out to test the behavior of the product on delamination compared to a control handkerchief.
  • a handkerchief was made by tying, using an adhesive in solution in water, PVA, 3 folds of format 21.5 x 21.5 cm, at the periphery on a strip of 2 cm wide.
  • bonding makes it possible to produce a product offering a greatly increased resistance to delamination, both in the forward direction (SM) and in the cross direction (ST).
  • a handkerchief was made from 3 plies of cellulose wadding, made up of 60% softwood fibers and 40% hardwood fibers, each having a basis weight of 18 g / m 2 and incorporating an additive, at a rate of 1.5 kg per ton having a deliant effect on the fibers to improve the softness (product marketed by the ENKA NOBEL company under the brand BEROCELL 595).
  • the connection was made by peripheral bonding. Such a product would not be possible with the prior technique of peripheral embossing due to the presence of the additive.
  • control sample III Compared to the control sample III, it can be seen that the invention allows the production of products having a wide range of characteristics depending on the application envisaged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Wrappers (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Table Devices Or Equipment (AREA)
EP94900863A 1992-11-24 1993-11-22 Verbundwerkstoff aus zellstoffwatte Expired - Lifetime EP0670773B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97100688A EP0776758B1 (de) 1992-11-24 1993-11-22 Verfahren und Vorrichtung zur Herstellung eines Verbundwerkstoffes aus Zellstoffwatte

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9214063A FR2698314B1 (fr) 1992-11-24 1992-11-24 Produit stratifié en ouate de cellulose.
FR9214063 1992-11-24
PCT/FR1993/001146 WO1994012343A1 (fr) 1992-11-24 1993-11-22 Produit stratifie en ouate de cellulose

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP97100688A Division EP0776758B1 (de) 1992-11-24 1993-11-22 Verfahren und Vorrichtung zur Herstellung eines Verbundwerkstoffes aus Zellstoffwatte
EP97100688.7 Division-Into 1997-01-17

Publications (2)

Publication Number Publication Date
EP0670773A1 true EP0670773A1 (de) 1995-09-13
EP0670773B1 EP0670773B1 (de) 1997-07-30

Family

ID=9435813

Family Applications (2)

Application Number Title Priority Date Filing Date
EP97100688A Expired - Lifetime EP0776758B1 (de) 1992-11-24 1993-11-22 Verfahren und Vorrichtung zur Herstellung eines Verbundwerkstoffes aus Zellstoffwatte
EP94900863A Expired - Lifetime EP0670773B1 (de) 1992-11-24 1993-11-22 Verbundwerkstoff aus zellstoffwatte

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP97100688A Expired - Lifetime EP0776758B1 (de) 1992-11-24 1993-11-22 Verfahren und Vorrichtung zur Herstellung eines Verbundwerkstoffes aus Zellstoffwatte

Country Status (13)

Country Link
US (1) US6048603A (de)
EP (2) EP0776758B1 (de)
AT (2) ATE156062T1 (de)
CA (1) CA2150023C (de)
DE (2) DE69312730T2 (de)
DK (2) DK0670773T3 (de)
ES (2) ES2105600T3 (de)
FI (1) FI115125B (de)
FR (1) FR2698314B1 (de)
GR (1) GR3024908T3 (de)
NO (1) NO316430B1 (de)
PT (1) PT776758E (de)
WO (1) WO1994012343A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1584458A1 (de) * 2004-04-09 2005-10-12 Georgia-Pacific France Verfahren zum Herstellen eines mehrlagigen Zellulosefaserprodukts

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69425248T3 (de) * 1994-05-26 2012-10-11 Fort James Nederland B.V. Mehrschichtiges Tissuepapier sowie dessen Herstellungsverfahren
AT253U1 (de) * 1994-09-21 1995-06-26 Ortmann Pwa Ag Mehrlagiges bahnfoermiges hygienepapier
US5874157A (en) * 1996-04-02 1999-02-23 The Procter & Gamble Company Separable laminated paper product
US5887278A (en) * 1997-01-31 1999-03-30 The Procter & Gamble Company Disposable bib having notched tear resistance
CA2278652C (en) * 1997-01-31 2004-05-04 The Procter & Gamble Company Disposable bib having notched tear resistance
US6475932B1 (en) * 1999-01-29 2002-11-05 Ato Findley, Inc. High strength through-bonding technique for elastomeric laminates
IT246987Y1 (it) * 1999-08-06 2002-05-02 C M G Costruzioni Meccaniche G Macchina trasformabile per la alvorazione superficiale di carta
CA2394769A1 (en) * 1999-12-27 2001-06-05 Kimberly-Clark Worldwide, Inc. Multiple substrate ply attachment utilizing a flexographic printing process to apply chemical adhesives onto tissue
GB0011849D0 (en) * 2000-05-17 2000-07-05 Standex International Limited Embossing rollers
ES2287087T3 (es) * 2001-03-09 2007-12-16 Georgia-Pacific France Hoja de papel con pequeños cojines.
US20050224201A1 (en) * 2004-04-08 2005-10-13 Kimberly-Clark Worldwide, Inc. Treated crimped multi-ply product
ITFI20040143A1 (it) * 2004-06-25 2004-09-25 Perini Fabio Spa Un tovagliolo di carta o prodotto analogo, stampato e goffrato
DE102006060249A1 (de) * 2006-12-14 2008-06-19 Munz, Rudolf, Dr. Hygieneverbessertes Taschentuch
EP3781742B1 (de) * 2018-04-16 2022-11-02 Essity Hygiene and Health Aktiebolag Mehrlagiges tissuepapierprodukt und verfahren zur herstellung davon

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB363699A (en) * 1930-01-28 1931-12-23 Cellulose Products Inc Improvements in or relating to paper handkerchiefs, towels, table napkins or like articles and methods of making the same
US1931022A (en) * 1930-10-22 1933-10-17 Ewerlof Per Samuel Paper napkin
DE661758C (de) * 1935-10-26 1938-06-25 Malwin Feiler Dr Taschentuch
US2897108A (en) * 1953-05-11 1959-07-28 Kimberly Clark Co Disposable absorbent pad
FR1446235A (fr) * 1965-09-06 1966-07-15 Olin Mathieson Procédé de fabrication de sacs à plusieurs épaisseurs et appareil pour la mise en oeuvre de ce procédé
US3867225A (en) * 1969-01-23 1975-02-18 Paper Converting Machine Co Method for producing laminated embossed webs
US3673060A (en) * 1970-01-12 1972-06-27 Int Paper Co Adhesively laminated creped dinner napkin
US3868205A (en) * 1973-03-15 1975-02-25 Kimberly Clark Co Embossed paper toweling and method of production
US4300981A (en) * 1979-11-13 1981-11-17 The Procter & Gamble Company Layered paper having a soft and smooth velutinous surface, and method of making such paper
USH377H (en) * 1986-05-13 1987-12-01 Moore Business Forms, Inc. Releaseable adhesive pads
IT1225324B (it) * 1988-11-23 1990-11-06 Perini Finanziaria Spa Macchina per la trasformazione della carta con cilindri goffratori cooperanti per l'accoppiamento punta-punta di due nastri di carta da essi goffrati
US4980212A (en) * 1989-05-26 1990-12-25 Marquis Philip H Self-holding drafting paper
JPH0761350B2 (ja) * 1990-02-06 1995-07-05 株式会社瑞光 ナプキン
FR2672843B1 (fr) * 1991-02-20 1993-04-23 Kaysersberg Sa Feuilles de papier multicouches presentant des marquages, procede et dispositif pour leur elaboration.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9412343A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1584458A1 (de) * 2004-04-09 2005-10-12 Georgia-Pacific France Verfahren zum Herstellen eines mehrlagigen Zellulosefaserprodukts
FR2868731A1 (fr) * 2004-04-09 2005-10-14 Georgia Pacific France Soc En Procede de fabrication d'un produit cellulosique fibreux multiplis

Also Published As

Publication number Publication date
CA2150023A1 (fr) 1994-06-09
PT776758E (pt) 2002-07-31
FR2698314A1 (fr) 1994-05-27
FI115125B (fi) 2005-03-15
WO1994012343A1 (fr) 1994-06-09
US6048603A (en) 2000-04-11
DE69312730D1 (de) 1997-09-04
ES2105600T3 (es) 1997-10-16
NO952026D0 (no) 1995-05-22
EP0776758B1 (de) 2002-02-06
ATE156062T1 (de) 1997-08-15
ATE212904T1 (de) 2002-02-15
NO952026L (no) 1995-07-19
DK0776758T3 (da) 2002-03-18
DE69331555D1 (de) 2002-03-21
EP0776758A2 (de) 1997-06-04
EP0776758A3 (de) 1998-03-11
CA2150023C (fr) 2006-01-17
NO316430B1 (no) 2004-01-26
DE69312730T2 (de) 1997-11-27
EP0670773B1 (de) 1997-07-30
ES2170289T3 (es) 2002-08-01
DE69331555T2 (de) 2002-08-22
GR3024908T3 (en) 1998-01-30
DK0670773T3 (da) 1997-10-20
FI952513A (fi) 1995-05-23
FI952513A0 (fi) 1995-05-23
FR2698314B1 (fr) 1994-12-23

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