ES2096683T3 - Pelicula tubular de 5 capas, co-extruida, estirada de forma biaxial con al menos 3 capas de poliamida. - Google Patents

Pelicula tubular de 5 capas, co-extruida, estirada de forma biaxial con al menos 3 capas de poliamida.

Info

Publication number
ES2096683T3
ES2096683T3 ES92113527T ES92113527T ES2096683T3 ES 2096683 T3 ES2096683 T3 ES 2096683T3 ES 92113527 T ES92113527 T ES 92113527T ES 92113527 T ES92113527 T ES 92113527T ES 2096683 T3 ES2096683 T3 ES 2096683T3
Authority
ES
Spain
Prior art keywords
polyamide
extruded
layers
tubular film
layer tubular
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
ES92113527T
Other languages
English (en)
Other versions
ES2096683T5 (es
Inventor
Von Widdern Mi Hennig-Cardinal
Gunter Dr Weber
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.)
Dow Produktions und Vertriebs GmbH and Co OHG
Original Assignee
Wolff Walsrode AG
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=27202854&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2096683(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wolff Walsrode AG filed Critical Wolff Walsrode AG
Publication of ES2096683T3 publication Critical patent/ES2096683T3/es
Application granted granted Critical
Publication of ES2096683T5 publication Critical patent/ES2096683T5/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C13/00—Sausage casings
    • A22C13/0013—Chemical composition of synthetic sausage casings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C13/00—Sausage casings
    • A22C2013/002—Sausage casings made by extrusion
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C13/00—Sausage casings
    • A22C2013/004—Sausage casings with at least one layer of a gas, e.g. oxygen, water vapour, impermeable material
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C13/00—Sausage casings
    • A22C2013/0053—Sausage casings multilayer casings
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C13/00—Sausage casings
    • A22C2013/0059—Sausage casings thermoplastic casings, casings with at least one layer of thermoplastic material
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C13/00—Sausage casings
    • A22C2013/0063—Sausage casings containing polyamide, e.g. nylon, aramide
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C13/00—Sausage casings
    • A22C2013/0083—Sausage casings biaxially oriented
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/08—Dimensions, e.g. volume
    • B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
    • B32B2309/105—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • 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
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1324—Flexible food casing [e.g., sausage type, etc.]
    • 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
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
    • Y10T428/1341—Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31725—Of polyamide
    • Y10T428/31739—Nylon type
    • Y10T428/31743—Next to addition polymer from unsaturated monomer[s]

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Wrappers (AREA)
  • Processing Of Meat And Fish (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Meat, Egg Or Seafood Products (AREA)

Abstract

LA INVENCION SE REFIERE A UNA PELICULA DE MANGA ESTIRADA BIAXIAL, COEXTRUIDA, PARA ENVOLVER DE FORMA DURADERA Y SIN PLIEGUES, PRODUCTOS A RELLENAR ENVASADOS EN ESTADO LIQUIDO O PASTOSO, EN PARTICULAR PRODUCTOS ALIMENTICIOS COMO SALCHICHAS PARA COCER Y QUESO PARA FUNDIR, QUE DURANTE Y/O DESPUES DEL RELLENADO EXPERIMENTAN UN TRATAMIENTO TERMICO.
ES92113527T 1991-08-23 1992-08-08 Pelicula de manga coextruida con 5 capas, estirada de manera biaxial con, al menos, 3 capas de poliamida. Expired - Lifetime ES2096683T5 (es)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4128083 1991-08-23
DE4128083 1991-08-23
DE4130486 1991-09-13
DE19914130486 DE4130486A1 (de) 1991-08-23 1991-09-13 5-schichtige, coextrudierte biaxial gereckte schlauchfolie mit mindestens 3 pa-schichten
US08/245,403 US5425974A (en) 1991-08-23 1994-05-18 5-layered coextruded biaxially stretched tubular film having at least 3 polyamide layers

Publications (2)

Publication Number Publication Date
ES2096683T3 true ES2096683T3 (es) 1997-03-16
ES2096683T5 ES2096683T5 (es) 2008-08-01

Family

ID=27202854

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92113527T Expired - Lifetime ES2096683T5 (es) 1991-08-23 1992-08-08 Pelicula de manga coextruida con 5 capas, estirada de manera biaxial con, al menos, 3 capas de poliamida.

Country Status (7)

Country Link
US (1) US5425974A (es)
EP (1) EP0530538B2 (es)
JP (1) JP3224281B2 (es)
AT (1) ATE148660T1 (es)
DE (2) DE4130486A1 (es)
DK (1) DK0530538T4 (es)
ES (1) ES2096683T5 (es)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6221410B1 (en) 1992-09-25 2001-04-24 Cryovac, Inc. Backseamed casing and packaged product incorporating same
US20070014897A1 (en) * 1992-06-05 2007-01-18 Ramesh Ram K Backseamed casing and packaged product incorporating same
US5698279A (en) * 1992-09-23 1997-12-16 Viskase Corporation Heat shrinkable nylon food casing having a functionalized ethylenic polymer core layer
US5549943A (en) * 1992-09-23 1996-08-27 Viskase Corporation Heat shrinkable nylon food casing with a polyolefin core layer
DE4306274A1 (de) * 1992-12-23 1994-06-30 Wolff Walsrode Ag Mehrschichtig coextrudierte, biaxial verstreckte Schlauchfolie mit verbesserter Sauerstoffbarriere
ATE169271T1 (de) * 1992-12-23 1998-08-15 Wolff Walsrode Ag Mehrschichtig coextrudierte, biaxial verstreckte, nahtlose wursthülle mit verbesserter sauerstoffbarriere
DE4243800A1 (de) * 1992-12-23 1994-06-30 Wolff Walsrode Ag Mehrschichtige Kunststoffhülle mit zwei nebeneinanderliegenden Schichten aus aliphatischem Polyamid
DE4339337C2 (de) * 1993-11-19 1999-10-21 Becker & Co Naturinwerk Fünfschichtige, biaxial verstreckte Schlauchfolie zur Verpackung und Umhüllung von pastösen Lebensmitteln
DE4342618A1 (de) * 1993-12-14 1995-06-22 Wolff Walsrode Ag Mindestens 4-schichtig coextrudierte, biaxial verstreckte, transparente, schlauchförmige Wursthülle mit hoher Barrierewirkung gegenüber Wasserdampf-, Sauerstoffpermeation und Lichtdurchlässigkeit
US5866214A (en) * 1995-07-28 1999-02-02 W. R. Grace & Co.-Conn. Film backseamed casings therefrom, and packaged product using same
ATE232463T1 (de) * 1995-10-06 2003-02-15 Cryovac Inc Längsnahtgeschweisste umhüllung und damit verpacktes produkt
US6068933A (en) * 1996-02-15 2000-05-30 American National Can Company Thermoformable multilayer polymeric film
NZ333941A (en) * 1996-08-16 2000-11-24 Cryovac Inc Multilayered film comprising a polyamide sealant, a polyamide core layer, and an oxygen barrier layer
JPH10195211A (ja) * 1996-12-27 1998-07-28 Kureha Chem Ind Co Ltd 包装用フィルムまたはシート
DE19721142A1 (de) * 1997-05-21 1998-11-26 Kalle Nalo Gmbh Mehrschichtige, biaxial verstreckte Nahrungsmittelhülle mit zwei Sauerstoff-Barriereschichten
JP3972159B2 (ja) * 1998-05-12 2007-09-05 グンゼ株式会社 蒸着バルーン用フィルム
DE19854769A1 (de) * 1998-11-27 2000-05-31 Wolff Walsrode Ag Lasergestippter Kunststoffdarm
DE19860142A1 (de) 1998-12-24 2000-06-29 Wolff Walsrode Ag Füllfertiger Kunststoffdarm
EP1172202B1 (en) * 1999-04-02 2004-11-17 Kureha Kagaku Kogyo Kabushiki Kaisha Multilayered casing film
DE19943910A1 (de) 1999-09-14 2001-03-15 Wolff Walsrode Ag Mehrschichtiger biaxial gereckter Hochbarriere-Kunststoffdarm
DE19943909A1 (de) 1999-09-14 2001-03-15 Wolff Walsrode Ag Mehrschichtig coextrudierte biaxial gereckte Hochbarriere-Kunststoffhülle mit verminderter Haftung zum Füllgut sowie deren Verwendung als Nahrungsmittelhülle
DE19957455A1 (de) 1999-11-29 2001-05-31 Wolff Walsrode Ag Verfahren zur Herstellung füllmaschinengängiger Kupplungen für künstliche Wursthüllen
US6447892B1 (en) 2000-05-23 2002-09-10 Honeywell International Inc. Lidding film for modified atmosphere packaging
DE10110964C2 (de) * 2000-06-09 2002-10-31 Ems Chemie Ag Thermoplastische Mehrschichtverbunde
US6555243B2 (en) 2000-06-09 2003-04-29 Ems-Chemie Ag Thermoplastic multilayer composites
DE10043899A1 (de) 2000-09-06 2002-03-14 Victus Lebensmittelindustriebe Mehrschichtige Schlauchfolie auf Basis von Polyamid
RU2245058C2 (ru) * 2000-09-17 2005-01-27 Общество С Ограниченной Ответственностью "Поли-Пак" Многослойная ориентированная рукавная пленка для упаковки пищевых продуктов
DE10124581A1 (de) * 2001-05-21 2002-11-28 Wolff Walsrode Ag Verfahren zur Herstellung von rauchimprägnierten Schlauchhüllen
DE10216473B4 (de) * 2002-04-12 2004-10-28 Ticona Gmbh Mehrschichtige, schlauchförmige Verpackungshülle für pastöses Füllgut
DE20217987U1 (de) * 2002-06-20 2003-03-06 Kuhne Anlagenbau GmbH, 53757 Sankt Augustin Mehrschichtige flächen- oder schlauchförmige Nahrungsmittelhülle oder -folie
US20040062834A1 (en) * 2002-09-26 2004-04-01 Casematic, S.A. De C.V. Polyamide-based sausage casing
US7122255B2 (en) 2002-12-10 2006-10-17 E. I. Du Pont Canada Company Multilayered composite polyamide articles and processes for their preparation
DE10337010A1 (de) * 2003-08-12 2005-03-17 Case Tech Gmbh & Co.Kg Rauchdurchlässige gereckte nahtlose Schlauchhülle sowie deren Verwendung als Nahrungsmittelhülle
US20050142310A1 (en) * 2003-12-30 2005-06-30 Hatley Earl L. Plastic packaging for produce products
CN100519167C (zh) * 2004-04-27 2009-07-29 宇部兴产株式会社 高温化学药品和/或气体输送用叠层软管
DE102005011089A1 (de) * 2005-03-08 2006-09-14 Kalle Gmbh Mehrschichtige Nahrungsmittelhülle mit zwei Sauerstoff-Barriereschichten
DE102005031491A1 (de) * 2005-07-04 2007-01-11 Degussa Ag Verwendung einer Polyamidformmasse mit hoher Schmelzesteifigkeit zur Coextrusion mit einem hochschmelzenden Polymer
DE102005043287A1 (de) * 2005-09-09 2007-03-15 Kalle Gmbh Mehrschichtige Wursthülle mit drei nebeneinander liegenden Schichten auf Polyamidbasis
JP2007149995A (ja) 2005-11-28 2007-06-14 Fujifilm Corp 積層型圧電素子及びその製造方法
EP2095715A1 (de) * 2008-02-26 2009-09-02 CaseTech GmbH & Co. KG Nahrungsmittelhülle mit Barrierewirkung für Sauerstoff und/oder Wasserdampf und geeignet einen Nahrungsmittelzusatzstoff aufzunehmen, zu speichern und an das Nahrungsmittel abzugeben
US8211517B2 (en) * 2009-06-08 2012-07-03 Ei Du Pont De Nemours And Company Multi-layered coextruded tube
EP2364597A1 (de) 2010-03-10 2011-09-14 CaseTech GmbH Verkranzte Schlauchhülle mit gleichmäßiger Hüllendicke
EP3639669B1 (de) 2010-03-10 2023-05-10 Kolotech Fertigungstechniken GmbH Vorrichtung und verfahren zur herstellung einer verkranzter schlauchhülle mit gleichmässiger hüllendicke
US20120213896A1 (en) * 2011-02-23 2012-08-23 Cryovac, Inc. Ovenable Cook-In Film Providing Decreased Protein Adhesion

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US5055355A (en) * 1983-08-01 1991-10-08 Allied-Signal Inc. Oriented film laminates of polyamides and ethylene vinyl alcohol copolymers
EP0132565B2 (en) * 1983-08-01 1998-11-25 AlliedSignal Inc. Oriented film laminates of polyamides and ethylene vinyl alcohol
FI73923C (fi) * 1985-11-27 1991-01-01 Wihuri Oy Polyamidhaltig maongskiktsfilm.
US4668571A (en) * 1986-05-02 1987-05-26 The Dow Chemical Company Coextrustion tie layer and process for producing such tie layer
JPS62273849A (ja) * 1986-05-23 1987-11-27 呉羽化学工業株式会社 熱収縮性複合フイルム及びその製造方法
JPH0222052A (ja) * 1987-02-05 1990-01-24 Kureha Chem Ind Co Ltd 熱収縮性積層フイルム及びその製造方法
DE4001612C2 (de) * 1990-01-20 1999-05-27 Hoechst Ag Mehrschichtige Verpackungshülle auf Basis von Polyamid
DE4017046A1 (de) * 1990-05-26 1991-11-28 Hoechst Ag Mehrschichtige, schlauchfoermige verpackungshuelle

Also Published As

Publication number Publication date
US5425974A (en) 1995-06-20
ATE148660T1 (de) 1997-02-15
EP0530538A1 (de) 1993-03-10
DE59208006D1 (de) 1997-03-20
DK0530538T4 (da) 2008-07-07
EP0530538B1 (de) 1997-02-05
EP0530538B2 (de) 2008-03-19
JPH05305659A (ja) 1993-11-19
DE4130486A1 (de) 1993-02-25
DK0530538T3 (da) 1997-07-28
ES2096683T5 (es) 2008-08-01
JP3224281B2 (ja) 2001-10-29

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