ES2105323T3 - Procedimiento de tratamiento de pieles, cueros o materiales laminares que contienen colageno por medio de un fluido denso a presion. - Google Patents

Procedimiento de tratamiento de pieles, cueros o materiales laminares que contienen colageno por medio de un fluido denso a presion.

Info

Publication number
ES2105323T3
ES2105323T3 ES93921975T ES93921975T ES2105323T3 ES 2105323 T3 ES2105323 T3 ES 2105323T3 ES 93921975 T ES93921975 T ES 93921975T ES 93921975 T ES93921975 T ES 93921975T ES 2105323 T3 ES2105323 T3 ES 2105323T3
Authority
ES
Spain
Prior art keywords
leather
treatment
pct
dense fluid
products
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
ES93921975T
Other languages
English (en)
Inventor
Gerard Gavend
Bernard Vulliermet
Christian Perre
Maurice Carles
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.)
Centre Technique Cuir Chaussure Maroquinerie
Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
Original Assignee
Commissariat a lEnergie Atomique CEA
Centre Technique Cuir Chaussure Maroquinerie
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
Application filed by Commissariat a lEnergie Atomique CEA, Centre Technique Cuir Chaussure Maroquinerie filed Critical Commissariat a lEnergie Atomique CEA
Application granted granted Critical
Publication of ES2105323T3 publication Critical patent/ES2105323T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/32—Material containing basic nitrogen containing amide groups leather skins
    • D06P3/3206—Material containing basic nitrogen containing amide groups leather skins using acid dyes
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C1/00—Chemical treatment prior to tanning
    • C14C1/08—Deliming; Bating; Pickling; Degreasing
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C3/00—Tanning; Compositions for tanning
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/10—Processes in which the treating agent is dissolved or dispersed in organic solvents; Processes for the recovery of organic solvents thereof
    • D06M23/105—Processes in which the solvent is in a supercritical state
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/52—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
    • D06P1/5264—Macromolecular compounds obtained otherwise than by reactions involving only unsaturated carbon-to-carbon bonds
    • D06P1/5292—Macromolecular compounds obtained otherwise than by reactions involving only unsaturated carbon-to-carbon bonds containing Si-atoms
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/642—Compounds containing nitrogen
    • D06P1/647—Nitrogen-containing carboxylic acids or their salts
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/673—Inorganic compounds
    • D06P1/67333—Salts or hydroxides
    • D06P1/67341—Salts or hydroxides of elements different from the alkaline or alkaline-earth metals or with anions containing those elements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/673—Inorganic compounds
    • D06P1/67333—Salts or hydroxides
    • D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
    • D06P1/67366—Phosphates or polyphosphates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/94—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dyes dissolved in solvents which are in the supercritical state
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/32—Material containing basic nitrogen containing amide groups leather skins
    • D06P3/3206—Material containing basic nitrogen containing amide groups leather skins using acid dyes
    • D06P3/3213—Material containing basic nitrogen containing amide groups leather skins using acid dyes monoazo
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/32—Material containing basic nitrogen containing amide groups leather skins
    • D06P3/3206—Material containing basic nitrogen containing amide groups leather skins using acid dyes
    • D06P3/3213—Material containing basic nitrogen containing amide groups leather skins using acid dyes monoazo
    • D06P3/322—Material containing basic nitrogen containing amide groups leather skins using acid dyes monoazo using monoazo premetallised dyes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/32—Material containing basic nitrogen containing amide groups leather skins
    • D06P3/3206—Material containing basic nitrogen containing amide groups leather skins using acid dyes
    • D06P3/3226—Material containing basic nitrogen containing amide groups leather skins using acid dyes dis-polyazo
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/32—Material containing basic nitrogen containing amide groups leather skins
    • D06P3/3206—Material containing basic nitrogen containing amide groups leather skins using acid dyes
    • D06P3/3226—Material containing basic nitrogen containing amide groups leather skins using acid dyes dis-polyazo
    • D06P3/3233—Material containing basic nitrogen containing amide groups leather skins using acid dyes dis-polyazo using dis-polyazo premetallised dyes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/34—Material containing ester groups
    • D06P3/343—Material containing ester groups using vat or sulfur dyes

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

LA INVENCION SE REFIERE A UN PROCESO DE TRATAMIENTO DE PRODUCTOS CONSTITUIDOS POR PIELES, CUEROS U OTROS MATERIALES EN HOJAS QUE CONTIENEN COLAGENO, CURTIDOS O NO, EN DIFERENTES ETAPAS DE SU TRANSFORMACION. SEGUN ESTE PROCESO, SEPONE EN CONTACTO EN (1) LOS PRODUCTOS CON UN FLUIDO DENSO A PRESION, POR EJEMPLO CO2 EN ESTADO SUPERCRITICO O LIQUIDO A PRESION, QUE CONTIENE EVENTUALMENTE UNA O VARIA SUSTANCIAS ACTIVAS Y QUE ES LLEVADO A UNA PRESION P1 EN (5) Y A UNA TEMPERATURA (TI) EN (7), BIENE PARA DESENGRASAR ESTOS PRODUCTOS CUANDO SE UTILIZA FLUIDO PURO, BIEN PARA IMPREGNALOS DE SUSTANCIAS ACTIVAS TALES COMO AGNETES DE CURYTIDO, DE EFUERZO, DE COLORACION O DE HIDROFUGACION . TRAS ESTA IMPREGNACION O ESTE DESENGRASE, SE LLEVAN DE NUEVO LOS PRODUCTOS A LA PRESION ATMOSFERICA PARA ELIMINAR DE ESTOS, EL FLUIDO DENSO. EL PROCESO PUEDE SER APLICADO EN VARIAS ETAPSAS DE UNA CADENA DE TRANSFORMACION DE PIELES, CUEROS U OTROS MATERIALES EN HOJAS, DAPTANDOSE LAS CARACTERISTICAS DE PRERSION Y DE TEMPERATURA DE FLUIDOS PARA EL OBJETIVO A ALCANZAR.
ES93921975T 1992-10-02 1993-10-01 Procedimiento de tratamiento de pieles, cueros o materiales laminares que contienen colageno por medio de un fluido denso a presion. Expired - Lifetime ES2105323T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9211703A FR2696477B1 (fr) 1992-10-02 1992-10-02 Procédé de traitement de peaux, de cuirs ou de matériaux en feuilles contenant du collagène, par un fluide dense sous pression.

Publications (1)

Publication Number Publication Date
ES2105323T3 true ES2105323T3 (es) 1997-10-16

Family

ID=9434085

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93921975T Expired - Lifetime ES2105323T3 (es) 1992-10-02 1993-10-01 Procedimiento de tratamiento de pieles, cueros o materiales laminares que contienen colageno por medio de un fluido denso a presion.

Country Status (9)

Country Link
US (1) US5512058A (es)
EP (1) EP0615550B1 (es)
AT (1) ATE154397T1 (es)
CA (1) CA2124354A1 (es)
DE (1) DE69311532D1 (es)
ES (1) ES2105323T3 (es)
FR (1) FR2696477B1 (es)
GR (1) GR3024556T3 (es)
WO (1) WO1994008054A1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2238926A1 (es) * 2004-02-18 2005-09-01 Universidad De Burgos Desengrasado de piel de cerdo mediante dioxido de carbono comprimido para la posterior obtencion de pasta de colageno de uso alimentario.

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19507572A1 (de) * 1995-03-03 1996-09-12 Helmut Geihsler Verfahren zur Zurichtung von tierischen Häuten oder Fellen
US6344243B1 (en) 1997-05-30 2002-02-05 Micell Technologies, Inc. Surface treatment
US6287640B1 (en) 1997-05-30 2001-09-11 Micell Technologies, Inc. Surface treatment of substrates with compounds that bind thereto
US6165560A (en) * 1997-05-30 2000-12-26 Micell Technologies Surface treatment
CA2291146C (en) * 1997-05-30 2008-09-09 Micell Technologies Surface treatment
US6010542A (en) * 1997-08-29 2000-01-04 Micell Technologies, Inc. Method of dyeing substrates in carbon dioxide
NL1008363C2 (nl) * 1998-02-19 1999-08-20 Tno Werkwijze voor het reinigen van vaste materialen en inrichting voor het toepassen van deze werkwijze.
TW426775B (en) * 1998-03-16 2001-03-21 Ind Tech Res Inst Method of fibers scouring
US6048369A (en) * 1998-06-03 2000-04-11 North Carolina State University Method of dyeing hydrophobic textile fibers with colorant materials in supercritical fluid carbon dioxide
US6497921B1 (en) 1998-11-06 2002-12-24 North Carolina State University Method for meniscus coating with liquid carbon dioxide
US6083565A (en) 1998-11-06 2000-07-04 North Carolina State University Method for meniscus coating with liquid carbon dioxide
FR2800389B1 (fr) * 1999-10-29 2002-04-12 Commissariat Energie Atomique Procede de tannage de peaux ou de materiaux contenant du collagene, avec un fluide dense sous pression
US6261326B1 (en) 2000-01-13 2001-07-17 North Carolina State University Method for introducing dyes and other chemicals into a textile treatment system
US6676710B2 (en) 2000-10-18 2004-01-13 North Carolina State University Process for treating textile substrates
ITVI20010060A1 (it) * 2001-03-13 2002-09-13 Ge Ma Ta Spa Procedimento di tintura ingrasso e fissaggio delle pelli
EP1505162A1 (en) * 2002-05-02 2005-02-09 Masaki Minamiura Material such as hide, skin, leather or fur for use in manufacturing leather product, leather product, method for preparing said material, and method for manufacturing leather product
EP1462185A1 (en) * 2003-03-25 2004-09-29 Linde Aktiengesellschaft Detergent injection system
WO2004082858A1 (en) * 2003-03-21 2004-09-30 Linde Aktiengesellschaft Parts cleaning
DE102006008190A1 (de) * 2006-02-22 2007-08-23 Linde Ag Verfahren zum Fetten von Leder
HK1104900A2 (en) * 2007-10-15 2008-01-25 香港生产力促进局 A super-critical co2 waterless beam dyeing system
DE102009018232B8 (de) 2009-04-21 2011-11-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Gerbung von Tierhäuten
DE102016000243A1 (de) 2016-01-12 2017-07-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Lederhydrophobierungsverfahren und damit hergestelltes Leder
CN107142757A (zh) * 2017-05-27 2017-09-08 刘振 一种皮革无水染色方法
DK201970267A1 (en) 2019-04-29 2020-05-13 Ecco Sko A/S Apparatus for dyeing of leather
DK180537B1 (en) * 2019-04-29 2021-06-10 Ecco Sko As Method for dyeing of leather
DE102020117164A1 (de) * 2020-06-30 2021-12-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Verfahren zum Färben von Leder und gefärbtes Leder mit einer hohen Reibechtheit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4776173A (en) * 1985-12-20 1988-10-11 Angio-Medical Corporation Method for extracting a substance from animal derived material
US5169687A (en) * 1988-09-16 1992-12-08 University Of South Florida Supercritical fluid-aided treatment of porous materials
DE4004111C2 (de) * 1989-02-15 1999-08-19 Deutsches Textilforschzentrum Verfahren zur Vorbehandlung von textilen Flächengebilden oder Garnen
DE3904514C2 (de) * 1989-02-15 1999-03-11 Oeffentliche Pruefstelle Und T Verfahren zum Reinigen bzw. Waschen von Bekleidungsteilen o. dgl.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2238926A1 (es) * 2004-02-18 2005-09-01 Universidad De Burgos Desengrasado de piel de cerdo mediante dioxido de carbono comprimido para la posterior obtencion de pasta de colageno de uso alimentario.
ES2238926B1 (es) * 2004-02-18 2006-12-16 Universidad De Burgos Desengrasado de piel de cerdo mediante dioxido de carbono comprimido para la posterior obtencion de pasta de colageno de uso alimentario.

Also Published As

Publication number Publication date
US5512058A (en) 1996-04-30
DE69311532D1 (de) 1997-07-17
FR2696477A1 (fr) 1994-04-08
EP0615550A1 (fr) 1994-09-21
GR3024556T3 (en) 1997-12-31
ATE154397T1 (de) 1997-06-15
EP0615550B1 (fr) 1997-06-11
FR2696477B1 (fr) 1994-11-18
CA2124354A1 (fr) 1994-04-14
WO1994008054A1 (fr) 1994-04-14

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