EP0757000B1 - Flan pour emballages - Google Patents

Flan pour emballages Download PDF

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Publication number
EP0757000B1
EP0757000B1 EP95112338A EP95112338A EP0757000B1 EP 0757000 B1 EP0757000 B1 EP 0757000B1 EP 95112338 A EP95112338 A EP 95112338A EP 95112338 A EP95112338 A EP 95112338A EP 0757000 B1 EP0757000 B1 EP 0757000B1
Authority
EP
European Patent Office
Prior art keywords
zones
depth
foil
lengths
bending
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
EP95112338A
Other languages
German (de)
English (en)
Other versions
EP0757000A1 (fr
Inventor
Gerhard Seufert
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.)
SEUFERT KUNSTSTOFFVERPACKUNG G
Original Assignee
SEUFERT KUNSTSTOFFVERPACKUNG G
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE59505382T priority Critical patent/DE59505382D1/de
Application filed by SEUFERT KUNSTSTOFFVERPACKUNG G filed Critical SEUFERT KUNSTSTOFFVERPACKUNG G
Priority to ES95112338T priority patent/ES2130482T3/es
Priority to EP95112338A priority patent/EP0757000B1/fr
Priority to AT95112338T priority patent/ATE177700T1/de
Priority to CA002180774A priority patent/CA2180774A1/fr
Priority to US08/684,467 priority patent/US5741570A/en
Priority to AU60839/96A priority patent/AU6083996A/en
Priority to JP20592796A priority patent/JP3370237B2/ja
Publication of EP0757000A1 publication Critical patent/EP0757000A1/fr
Application granted granted Critical
Publication of EP0757000B1 publication Critical patent/EP0757000B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/4266—Folding lines, score lines, crease lines
    • 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
    • B31F1/08—Creasing
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/25—Surface scoring
    • B31B50/252—Surface scoring using presses or dies
    • 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.]
    • Y10T428/24471—Crackled, crazed or slit
    • 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
    • Y10T428/2457—Parallel ribs and/or grooves
    • 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.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree

Definitions

  • the invention relates to a film blank for packaging, in particular for folding boxes, with embossed bending lines in the form of groove-shaped depressions which start from one foil surface and are closed at the bottom of the depressions with respect to the other foil surface, the bottom of the depressions alternating in the longitudinal direction from zones of greater depth T 2 and zones of shallower depth T 1 .
  • Such film cuts consist in particular of transparent films out Thermoplastics from the group polyethylene terephthalate (PET), Polypropylene (PP) and polyvinyl chloride (PVC), the PVC in the latter Time important because of its chlorine content from an environmental point of view has lost.
  • PET and PP cause some in manufacturing additional problems that have not yet been completely mastered.
  • the packaging is preferably, but not exclusively for lids, but above all for folding boxes.
  • Such Packaging enables prospective buyers an unhindered Consideration of the content, along with the packaging very much can be designed decoratively.
  • the foils under discussion here usually have a thickness between 0.150 mm and 1.0 mm, the mass of the film cuts has a thickness between 0.200 mm and 0.400 mm. Usually the film thickness increases with the packaging size, but not for all possible cases apply.
  • U.S. Patent 4,064,206 is a thermal process for the Manufacture of bending lines known in the case of bending edge rulers Electrode function, against the film, against an insulating plate and pressed against a counter electrode. On the bending edge rulers and high frequency is applied to the counter tool, whereby the film material in the middle and under the bending edge rulers partially melted and laterally displaced under the embossing pressure is, whereby so-called edge beads form, which the Accompany bending edges on both sides.
  • JP-GM 4-9345 is a foil cut according to the generic term of claim 1 and a stamping tool provided therefor so-called bending edge ruler, known in which the zones are larger and shallow depth with sharp edges connected by surfaces are aligned exactly perpendicular to the longitudinal direction of the bending line are.
  • This form of space leads to both the inside during the bending process as well as on the outside of the bend lines to surface irregularities, damage to the contents of the packaging favor, but can also damage sensitive fabrics, if they come into contact with the outside of the packaging. Fine silk fabrics such as those for are particularly sensitive Ties are used. When touched with one Packaging can be pulled out of the silk threads.
  • a part of such packaging as Gift pack for ties is an option.
  • EP 0 563 781 A1 also addresses the disadvantages of Item according to JP-GM 4-9345 apart and strikes Remedy before that the surfaces of the zones of lesser depth to the Provide ends with a radius between 0.05 mm and 1.0 mm become.
  • the document in question discloses two versions, namely one first version in which the zone of greater depth covers the entire film thickness penetrates, so the film is punched through, and a second version, at which also unites the film in the area of greater depth Remaining cross section. In both cases, however, the transition is in the area the other side of the film surface has sharp edges, and the side surfaces of the Zones of shallower depth - apart from the one mentioned Radius - at right angles and with sharp edges to the longitudinal direction of the bending line.
  • the invention is therefore based on the object of cutting a film of the genus mentioned at the beginning, which is characterized by slight Producibility, low tolerances with regard to bending behavior and high resistance to kink breaks in the bending lines distinguished.
  • the application of High frequency can be dispensed with, and the bending lines should be on both Sides of the films have a smooth course, so that a Threading is omitted, and continue to be between the Bending lines lying in the film fields do not suffer any disturbing deformation.
  • the object is achieved in the film cutting specified at the outset according to the invention in that the zones of shallower depth T 1 are delimited by arcs whose radius R is at least 1.1 mm and whose center of curvature lies beyond a line which defines the zones of greater depth T 2 connects with each other.
  • the arc radius is therefore larger than the maximum in question upcoming film thickness, and by the position of the invention Center of curvature M beyond the line L is achieved that the Arcs at their ends are not perpendicular to the longitudinal direction of the Bending lines run, but at an acute angle, which also the Can have a value of 0, which will be explained in more detail below becomes.
  • the embossing process stabilizes with a progressive increase in imprinting forces to a certain extent itself, so that only with regard to the bending behavior small tolerances can be observed.
  • the invention Bending lines are highly insensitive to Kink breaks, i.e. the foil fields lying on both sides of the bending lines can also be bent back and forth several times by more than 90 ° without there are breaks.
  • the special strength against cutting the bending lines can be determined by doing the experiment makes the film cut apart along a bending line tear. There is no need to use high frequency become.
  • the bending lines have an extreme on both sides of the foils smooth course, so that threading even when touched sensitive fabrics, such as fine silk fabrics, is avoided.
  • the bending behavior can of course be influenced by the depths T 1 and T 2 and their relationship to one another. It is particularly expedient if the greater depth T 2 is at least 40% and at most 90% of the film thickness D. It is also advantageous if the smaller depth T 1 is at least 25% of the film thickness D. It is of course important to ensure that a difference in thickness remains, which is guaranteed by specifying the limit values mentioned.
  • the lengths A or A 'and B or B' of the zones of smaller and greater depth naturally also have an influence on the bending behavior of the bending lines.
  • the absolute lengths A and A 'of the zones of greater depth T 2 and the absolute lengths B and B' of the zones of less depth T 1 can both be chosen between 0.5 mm and 5 mm, and the ratio of the lengths of the zones of greater depth the lengths of the zones of less depth can be between 0.5 and 4. At values below 1, the lengths of the zones of greater depth are smaller than the lengths of the zones of less depth. Conversely, for values over 1, the lengths of the zones of greater depth are greater than the lengths of the zones of less depth.
  • the transition points between the zones of greater depth T 2 and the zones of less depth T 1 are rounded off concavely. It can be assumed that any stress peaks that occur during the bending process are further reduced, so that the conditions improve further.
  • a film blank 1 is shown, which runs along it surrounding punching line 2 was punched out of a film.
  • This Foil blank 1 has a number in a cross-shaped arrangement of bending lines BL. Such film cuts with different shapes Bending lines are state-of-the-art, so that further exploration is possible then superfluous.
  • the bending lines are designed as groove-shaped depressions 5 which 2 start from a film surface 3 and on the opposite film surface 4 are closed. As from a figure 15 emerges, the side walls 6 and 7 are at an angle ⁇ to each other, which can be 60 °, but this dimension is not critical is.
  • the zones 9 of lower depth T 1 are delimited by arcs 10, while the zones 8 of greater depth T 2 are delimited by straight lines 11.
  • the lines 11 all lie on a common line L, the imaginary sections of which also run through the zones 9.
  • zones 9 are more precise taken - delimited by two arcs 10 each, one represent an acute-angled section of a cylindrical surface on both sides, as can be seen from Figure 15.
  • bending into a position according to Figure 14 naturally deforms this section of a Cylinder surface, which is irrelevant for further considerations.
  • the center of curvature M lies beyond the line L, which connects the zones 8 of greater depth T 2 to one another.
  • the expression "beyond” refers to a starting point in the film surface 3.
  • the center of curvature M is even beyond the film surface 4, likewise seen from the film surface 3.
  • the ends of the circular arcs 10 extend at an acute angle ⁇ to the line L, this angle ⁇ being 45 ° in the exemplary embodiment according to FIG.
  • this angle ⁇ can also assume other values, such as 60 °, or it can tend towards 0, which is discussed in more detail in connection with FIGS. 8 to 10 becomes.
  • the ratio is A: B less than 1, and in the embodiment according to FIG. 4 this is Ratio A: B greater than 1.
  • FIG. 5 now show sections of a Embossing tool 12 for the production of bending lines according to FIG. 2.
  • the embossing tool has a cutting edge 13 which is interrupted at regular intervals by cutouts 14, the Surface a gusset-shaped section from a cylindrical surface represents, as can be seen in particular from Figure 7.
  • the center of curvature M ' is also beyond one Cutting edge 15, which is used to generate the straight lines 11.
  • the cutting edge 13 is complementary to that in FIG. 2 bending line shown, i.e. the ends of the cutouts 14 go under an acute angle into the cutting edge 15 above, but below Formation of peaks at the points marked with arrows P in Figure 7.
  • the transition points P 'between the zones 8 of greater depth T 2 and the zones 9 of less depth T 1 are rounded off concavely, so that the formation of peaks is avoided at this point. Due to the circular concave transition at the transition points P ', the lengths A to A' and B to B 'change slightly depending on the radius of curvature r at these points. This radius of curvature can be between 0.1 mm and 1.0 mm. The appearance of a bending edge bent by 90 ° is shown in FIG. 16, ie the ends of the zones 9 of smaller depth T 1 also merge into the straight lines 11 without edges. An embossing tool 16 for the production of bending edges according to FIGS.
  • This embossing tool 16 also has a cutting edge 17 with cutouts 18 through which a cutting edge 19 is interrupted. However, it is made clearly visible that roundings are provided at the transition points P ', by means of which the formation of sharp corners is avoided. It can be assumed that locally narrow flow processes during the embossing process are facilitated, as is also the avoidance of stress peaks or internal stresses in the film material. In any case, tests have shown that this not only makes the embossing process easier, but also that the film cuts have better bending behavior. The experiments have also shown that such a design of the embossing tool further reduces the risk of breakage of the film cut when bending back and forth several times.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Cartons (AREA)
  • Wrappers (AREA)
  • Making Paper Articles (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Claims (11)

  1. Flan de film pour emballages, en particulier pour des boítes pliantes, comportant des lignes de pliage imprimées (BL) sous forme de renfoncements (5) en forme de gorges qui partent depuis une surface du film (3) et qui sont fermées au fond des renfoncements (5) par rapport à l'autre surface du film (4), le fond des renfoncements (5) se composant en alternance de zones (8) de profondeur plus importante T2 et de zones (9) de profondeur réduite T1, caractérisé en ce que les zones (9) de profondeur réduite T1 sont délimitées par des arcs de cercle (10) dont le rayon R s'élève à au moins 1,1 mm et dont le centre de courbure (M) se trouve au-delà d'une ligne (L) qui relie les zones (8) de profondeur plus importante T2.
  2. Flan de film selon la revendication 1, caractérisé en ce que la profondeur plus importante T2 s'élève à au moins 40 % et au maximum à 90 % de l'épaisseur de film D.
  3. Flan de film selon la revendication 1, caractérisé en ce que la profondeur réduite T1 s'élève à au moins 25 % de l'épaisseur de film D.
  4. Flan de film selon la revendication 1, caractérisé en ce que les longueurs A, A' des zones (8) de profondeur plus importante T2 sont comprises entre 0,5 et 5 mm.
  5. Flan de film selon la revendication 1, caractérisé en ce que les longueurs B, B' des zones (9) de profondeur réduite T1 sont comprises entre 0,5 et 5 mm.
  6. Flan de film selon la revendication 1, caractérisé en ce que la relation des longueurs A, A' des zones (8) de profondeur plus importante T2 par rapport aux longueurs B, B' des zones (9) de profondeur réduite T1 est comprise entre 0,5 et 1.
  7. Flan de film selon la revendication 1, caractérisé en ce que la relation des longueurs A, A' des zones (8) de profondeur plus importante T2 par rapport aux longueurs B, B' des zones (9) de profondeur réduite T1 est comprise entre 1 et 4, de préférence entre 1 et 2.
  8. Flan de film selon la revendication 1, caractérisé en ce que les zones (9) de profondeur réduite T1 se transforment sous un angle aigu
    Figure 00180001
    a" de 0° à 60° en les zones (8) de profondeur plus importante T2.
  9. Flan de film selon l'une ou plusieurs des revendications 1 à 8, caractérisé en ce que les emplacements de transition (P') entre les zones (8) de profondeur plus importante T2 et les zones (9) de profondeur réduite T1 sont arrondis sous forme concave.
  10. Flan de film selon la revendication 9, caractérisé en ce que le rayon de courbure r" aux emplacements de transition (P') est compris entre 0,1 et 2 mm, de préférence entre 0,2 et 1,0 mm.
  11. Flan de film selon la revendication 1, caractérisé en ce que pour des épaisseurs de film D entre 200 et 400 µm, la différence (D - T1) est comprise entre 120 et 200 µm.
EP95112338A 1995-08-04 1995-08-04 Flan pour emballages Expired - Lifetime EP0757000B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
ES95112338T ES2130482T3 (es) 1995-08-04 1995-08-04 Formato laminar para embalajes.
EP95112338A EP0757000B1 (fr) 1995-08-04 1995-08-04 Flan pour emballages
AT95112338T ATE177700T1 (de) 1995-08-04 1995-08-04 Folienzuschnitt für verpackungen
DE59505382T DE59505382D1 (de) 1995-08-04 1995-08-04 Folienzuschnitt für Verpackungen
CA002180774A CA2180774A1 (fr) 1995-08-04 1996-07-09 Ebauche de film pour emballages
US08/684,467 US5741570A (en) 1995-08-04 1996-07-19 Film blank for packages
AU60839/96A AU6083996A (en) 1995-08-04 1996-08-01 Film blank for packages
JP20592796A JP3370237B2 (ja) 1995-08-04 1996-08-05 包装のためのシート切断片

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95112338A EP0757000B1 (fr) 1995-08-04 1995-08-04 Flan pour emballages

Publications (2)

Publication Number Publication Date
EP0757000A1 EP0757000A1 (fr) 1997-02-05
EP0757000B1 true EP0757000B1 (fr) 1999-03-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP95112338A Expired - Lifetime EP0757000B1 (fr) 1995-08-04 1995-08-04 Flan pour emballages

Country Status (8)

Country Link
US (1) US5741570A (fr)
EP (1) EP0757000B1 (fr)
JP (1) JP3370237B2 (fr)
AT (1) ATE177700T1 (fr)
AU (1) AU6083996A (fr)
CA (1) CA2180774A1 (fr)
DE (1) DE59505382D1 (fr)
ES (1) ES2130482T3 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6918503B1 (en) * 1997-09-02 2005-07-19 Linpac Mouldings Limited Box blank and a method of forming same
JP3422953B2 (ja) * 1999-08-27 2003-07-07 株式会社フジシール 折り曲げ罫線入り透明プラスチックシートおよび透明プラスチックシート用罫線刃
FR2824535B1 (fr) * 2001-05-09 2003-09-26 Oreal Emballage pour presentation groupee d'au moins deux articles
JP3532183B2 (ja) * 2001-12-03 2004-05-31 国継 鈴木 折り曲げ罫線入りプラスチックシートおよびプラスチックシート用罫線刃
AU2003211790A1 (en) * 2002-03-18 2003-09-29 Hisashi Hashimoto Plastic sheet with bending ruled line, and ruled line blade for plastic sheet
JP4502593B2 (ja) * 2003-05-16 2010-07-14 日本ダイスチール株式会社 押罫部材、罫入れ用型板および罫入れ装置
CN100344442C (zh) * 2004-06-28 2007-10-24 陆朝晖 一种采用平面包裱生产包装盒的工艺方法及所得产品
CN1329182C (zh) * 2004-06-28 2007-08-01 陆朝晖 一种生产包装盒的工艺方法
US20080190949A1 (en) * 2007-02-12 2008-08-14 Aaron Charles Rosso Magnetic insulator pad for container
CN100563960C (zh) * 2007-04-10 2009-12-02 陈锦棠 一种木质包装盒的加工工艺
EP2471637B1 (fr) * 2010-06-30 2016-09-28 Nippon Die Steel Co., Ltd. Lame de poinçonnage et découpe poinçonnée pour former une boîte
GB2542559A (en) * 2015-09-18 2017-03-29 The Benjamin Group Ltd A collapsible container and a method of making a collapsible container
CN108466456B (zh) * 2018-02-14 2024-07-05 温州高晟机械有限公司 一种拼板式多功能制盒机
JP6989045B1 (ja) * 2021-04-14 2022-01-05 王子ホールディングス株式会社 二重フランジ付き紙製容器を製造するためのシートおよびそのシートを組み立てた二重フランジ付き紙製容器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064206A (en) 1975-09-17 1977-12-20 Seufert Kunststoffverpackung G Process for forming flexible fold lines in thermoplastic sheets
JPS6169544A (ja) * 1984-09-13 1986-04-10 十條製紙株式会社 液体用厚紙容器のブランク
JP2536538B2 (ja) * 1987-08-05 1996-09-18 三菱樹脂株式会社 折り曲げ線入りプラスチックシ−ト
JP2541252B2 (ja) * 1987-11-30 1996-10-09 三菱樹脂株式会社 プラスチックシ―ト用罫線刃
JPH02249626A (ja) * 1989-03-24 1990-10-05 Mitsubishi Plastics Ind Ltd 罫線付設方法
JP2741091B2 (ja) 1990-04-26 1998-04-15 長谷川香料株式会社 ８―メチル―４（ｚ）―ノネン誘導体
JP3198389B2 (ja) * 1991-07-17 2001-08-13 三菱樹脂株式会社 折り曲げ罫線入り複合プラスチックシート材
US5302435A (en) 1992-03-24 1994-04-12 Mitsubishi Plastics Industries Limited Plastic sheet with a ruled line for bending
JP3172892B2 (ja) * 1992-09-07 2001-06-04 三菱樹脂株式会社 折り曲げシート材

Also Published As

Publication number Publication date
ATE177700T1 (de) 1999-04-15
JPH09104080A (ja) 1997-04-22
AU6083996A (en) 1997-02-06
EP0757000A1 (fr) 1997-02-05
DE59505382D1 (de) 1999-04-22
ES2130482T3 (es) 1999-07-01
JP3370237B2 (ja) 2003-01-27
US5741570A (en) 1998-04-21
CA2180774A1 (fr) 1997-02-05

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