EP0442549A2 - Composition de blanchiment aqueuse - Google Patents

Composition de blanchiment aqueuse Download PDF

Info

Publication number
EP0442549A2
EP0442549A2 EP19910200119 EP91200119A EP0442549A2 EP 0442549 A2 EP0442549 A2 EP 0442549A2 EP 19910200119 EP19910200119 EP 19910200119 EP 91200119 A EP91200119 A EP 91200119A EP 0442549 A2 EP0442549 A2 EP 0442549A2
Authority
EP
European Patent Office
Prior art keywords
acid
peroxyacid
weight
surfactant
composition
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
EP19910200119
Other languages
German (de)
English (en)
Other versions
EP0442549A3 (en
EP0442549B1 (fr
Inventor
Stephen George Barnes
Timothy David Finch
Ian Thompson
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.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
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=10670885&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0442549(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Publication of EP0442549A2 publication Critical patent/EP0442549A2/fr
Publication of EP0442549A3 publication Critical patent/EP0442549A3/en
Application granted granted Critical
Publication of EP0442549B1 publication Critical patent/EP0442549B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3945—Organic per-compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3947—Liquid compositions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Cosmetics (AREA)
EP19910200119 1990-02-13 1991-01-22 Composition de blanchiment aqueuse Revoked EP0442549B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909003200A GB9003200D0 (en) 1990-02-13 1990-02-13 Aqueous liquid bleach composition
GB9003200 1990-02-13

Publications (3)

Publication Number Publication Date
EP0442549A2 true EP0442549A2 (fr) 1991-08-21
EP0442549A3 EP0442549A3 (en) 1992-01-08
EP0442549B1 EP0442549B1 (fr) 1996-10-23

Family

ID=10670885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910200119 Revoked EP0442549B1 (fr) 1990-02-13 1991-01-22 Composition de blanchiment aqueuse

Country Status (7)

Country Link
EP (1) EP0442549B1 (fr)
JP (1) JPH04214800A (fr)
AU (1) AU639296B2 (fr)
CA (1) CA2035790A1 (fr)
DE (1) DE69122789T2 (fr)
ES (1) ES2093672T3 (fr)
GB (1) GB9003200D0 (fr)

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0497337A2 (fr) * 1991-02-01 1992-08-05 Hoechst Aktiengesellschaft Suspensions aqueuses d'acides peroxycarboxyliques
EP0564250A2 (fr) * 1992-03-31 1993-10-06 Unilever Plc Compositions détergentes liquides structurées contenant des amido- et imido-peroxyacides
EP0610010A2 (fr) * 1993-02-02 1994-08-10 Unilever Plc Compositions liquides contenant des agents de blanchiment et/ou de hygiène ayant une faible solubilité dans l'eau
US5415796A (en) * 1990-11-02 1995-05-16 The Clorox Company Liquid nonaqueous detergent with stable, solubilized peracid
WO1995033816A1 (fr) * 1994-06-08 1995-12-14 Unilever Plc Compositions aqueuses de blanchiment comprenant des acides peroxycarboxyliques
WO1996001311A1 (fr) * 1994-07-01 1996-01-18 Warwick International Group Limited Compositions de blanchiment
WO1996019559A1 (fr) * 1994-12-21 1996-06-27 Solvay Interox Limited Compositions de peracide epaissies
WO1996019558A1 (fr) * 1994-12-21 1996-06-27 Solvay Interox Limited Compositions de peracide epaissies
US5631218A (en) * 1994-06-20 1997-05-20 Lever Brothers Company, Division Of Conopco, Inc. Antimicrobial cleaning compositions
EP0890635A2 (fr) * 1997-07-08 1999-01-13 Manitoba Italia S.p.A. Compositions basées sur des acides percarboxyliques comme agents de nettoyage et de désinfection
WO1999013039A1 (fr) * 1997-09-11 1999-03-18 The Procter & Gamble Company Compositions detergentes
WO2000027970A2 (fr) * 1998-11-10 2000-05-18 The Procter & Gamble Company Compositions de blanchiment
WO2000027960A2 (fr) * 1998-11-10 2000-05-18 The Procter & Gamble Company Compositions de blanchiment
WO2000027973A1 (fr) * 1998-11-10 2000-05-18 The Procter & Gamble Company Procedes de trempage de tissus
EP1010750A1 (fr) * 1998-12-14 2000-06-21 The Procter & Gamble Company Compositions de blanchiment
EP1010751A2 (fr) * 1998-12-14 2000-06-21 The Procter & Gamble Company Compositions de blanchiment
WO2002012431A1 (fr) * 2000-08-10 2002-02-14 Ecolab Gmbh & Co. Ohg Peracides sous forme pateuse
US6440921B1 (en) * 1998-11-10 2002-08-27 The Procter & Gamble Company Bleaching compositions
US6509308B1 (en) 1998-10-11 2003-01-21 The Procter & Gamble Company Bleaching compositions
US6537958B1 (en) * 1999-11-10 2003-03-25 The Procter & Gamble Company Bleaching compositions
US6548470B1 (en) 1998-12-14 2003-04-15 The Procter & Gamble Company Bleaching compositions
US6693069B2 (en) * 1999-12-23 2004-02-17 Ecolab Gmbh & Co. Ohg Disinfecting compositions and processes for disinfecting surfaces
WO2004053038A1 (fr) * 2002-12-06 2004-06-24 Henkel Kommanditgesellschaft Auf Aktien Detergent liquide acide
EP1482026A1 (fr) * 2003-05-28 2004-12-01 Ecolab Inc. Détergent biocide
WO2005068470A2 (fr) * 2004-01-08 2005-07-28 Solvay Solexis S.P.A. Formulations aqueuses d'acides imido-alcane-percarboxyliques
WO2006048047A1 (fr) * 2004-11-08 2006-05-11 Ecolab Inc. Detergent biocide
US7531498B2 (en) 2003-06-13 2009-05-12 Henkel Kommanditgesellschaft Auf Aktien (Henkel Kgaa) Peroxycarboxylic acid-based bleach compositions having a long shelf life
EP1523474B2 (fr) † 2002-07-12 2012-12-19 Solvay Specialty Polymers Italy S.p.A. Formes cristallines d'acides imidoalkanpercarboxyliques
US8822719B1 (en) 2013-03-05 2014-09-02 Ecolab Usa Inc. Peroxycarboxylic acid compositions suitable for inline optical or conductivity monitoring
US9242879B2 (en) 2012-03-30 2016-01-26 Ecolab Usa Inc. Use of peracetic acid/hydrogen peroxide and peroxide-reducing agents for treatment of drilling fluids, frac fluids, flowback water and disposal water
US9253978B2 (en) 2008-03-28 2016-02-09 Ecolab USA, Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US9290448B2 (en) 2008-03-28 2016-03-22 Ecolab USA, Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US9540598B2 (en) 2008-03-28 2017-01-10 Ecolab Usa Inc. Detergents capable of cleaning, bleaching, sanitizing and/or disinfecting textiles including sulfoperoxycarboxylic acids
US9902627B2 (en) 2011-12-20 2018-02-27 Ecolab Usa Inc. Stable percarboxylic acid compositions and uses thereof
US10165774B2 (en) 2013-03-05 2019-01-01 Ecolab Usa Inc. Defoamer useful in a peracid composition with anionic surfactants
US11026421B2 (en) 2013-03-05 2021-06-08 Ecolab Usa Inc. Efficient stabilizer in controlling self accelerated decomposition temperature of peroxycarboxylic acid compositions with mineral acids

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6844305B1 (en) 1999-08-27 2005-01-18 The Proctor & Gamble Company Aqueous liquid detergent compositions comprising a polymeric stabilization system
DE10259262B3 (de) 2002-12-17 2004-08-05 Henkel Kgaa Verfahren zur Herstellung von bleichmittelhaltigen Suspensionen
MX342855B (es) 2011-08-15 2016-10-13 Procter & Gamble Composiciones detergentes que contienen compuestos de piridinol-n-oxido.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0176124A2 (fr) * 1984-09-28 1986-04-02 Akzo N.V. Utilisation de suspensions contenant un acide péroxycarboxylique comme compositions de blanchiment, nouvelles compositions de blanchiment et compositions de blanchiment emballées
EP0201958A1 (fr) * 1985-05-07 1986-11-20 Akzo N.V. Composition détergente et de blanchiment pouvant être versée
EP0325289A1 (fr) * 1988-01-20 1989-07-26 AUSIMONT S.p.A. Agents blanchissants contenant des acides percarboxyliques imidoaromatiques
DE3906768A1 (de) * 1989-03-03 1990-09-06 Henkel Kgaa Peroxycarbonsaeuren und deren verwendung
EP0435379A2 (fr) * 1989-12-22 1991-07-03 Akzo Nobel N.V. Suspension, enrobage, agglomération et utilisation d'acides imidoperoxycarboxyliques

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8411161D0 (en) * 1984-05-01 1984-06-06 Unilever Plc Multiple compartment pack

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0176124A2 (fr) * 1984-09-28 1986-04-02 Akzo N.V. Utilisation de suspensions contenant un acide péroxycarboxylique comme compositions de blanchiment, nouvelles compositions de blanchiment et compositions de blanchiment emballées
EP0201958A1 (fr) * 1985-05-07 1986-11-20 Akzo N.V. Composition détergente et de blanchiment pouvant être versée
EP0325289A1 (fr) * 1988-01-20 1989-07-26 AUSIMONT S.p.A. Agents blanchissants contenant des acides percarboxyliques imidoaromatiques
DE3906768A1 (de) * 1989-03-03 1990-09-06 Henkel Kgaa Peroxycarbonsaeuren und deren verwendung
EP0435379A2 (fr) * 1989-12-22 1991-07-03 Akzo Nobel N.V. Suspension, enrobage, agglomération et utilisation d'acides imidoperoxycarboxyliques

Cited By (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5415796A (en) * 1990-11-02 1995-05-16 The Clorox Company Liquid nonaqueous detergent with stable, solubilized peracid
EP0497337A2 (fr) * 1991-02-01 1992-08-05 Hoechst Aktiengesellschaft Suspensions aqueuses d'acides peroxycarboxyliques
EP0497337A3 (en) * 1991-02-01 1992-11-19 Hoechst Aktiengesellschaft Aqueous suspensions of peroxycarboxylic acids
EP0564250A2 (fr) * 1992-03-31 1993-10-06 Unilever Plc Compositions détergentes liquides structurées contenant des amido- et imido-peroxyacides
EP0564250A3 (en) * 1992-03-31 1995-11-08 Unilever Plc Structured liquid detergent compositions containing amido and imido peroxy acids
EP0610010A2 (fr) * 1993-02-02 1994-08-10 Unilever Plc Compositions liquides contenant des agents de blanchiment et/ou de hygiène ayant une faible solubilité dans l'eau
EP0610010A3 (fr) * 1993-02-02 1994-10-12 Unilever Plc Compositions liquides contenant des agents de blanchiment et/ou de hygiène ayant une faible solubilité dans l'eau.
WO1995033816A1 (fr) * 1994-06-08 1995-12-14 Unilever Plc Compositions aqueuses de blanchiment comprenant des acides peroxycarboxyliques
US5631218A (en) * 1994-06-20 1997-05-20 Lever Brothers Company, Division Of Conopco, Inc. Antimicrobial cleaning compositions
WO1996001311A1 (fr) * 1994-07-01 1996-01-18 Warwick International Group Limited Compositions de blanchiment
US5801138A (en) * 1994-07-01 1998-09-01 Warwick International Group Limited Bleaching compositions
WO1996019559A1 (fr) * 1994-12-21 1996-06-27 Solvay Interox Limited Compositions de peracide epaissies
WO1996019558A1 (fr) * 1994-12-21 1996-06-27 Solvay Interox Limited Compositions de peracide epaissies
US5962392A (en) * 1994-12-21 1999-10-05 Solvay Interox Limited Thickened peracid compositions
US6080712A (en) * 1994-12-21 2000-06-27 Solvay Interox Limited Thickened peracid compositions
EP0890635A2 (fr) * 1997-07-08 1999-01-13 Manitoba Italia S.p.A. Compositions basées sur des acides percarboxyliques comme agents de nettoyage et de désinfection
EP0890635A3 (fr) * 1997-07-08 1999-07-21 Manitoba Italia S.p.A. Compositions basées sur des acides percarboxyliques comme agents de nettoyage et de désinfection
WO1999013039A1 (fr) * 1997-09-11 1999-03-18 The Procter & Gamble Company Compositions detergentes
US6689732B1 (en) 1997-09-11 2004-02-10 The Procter & Gamble Company Detergent compositions having a specific hydrophobic peroxyacid bleaching system and anionic surfactant
US6509308B1 (en) 1998-10-11 2003-01-21 The Procter & Gamble Company Bleaching compositions
WO2000029536A1 (fr) * 1998-11-10 2000-05-25 The Procter & Gamble Company Compositions decolorantes
WO2000027960A3 (fr) * 1998-11-10 2001-10-04 Procter & Gamble Compositions de blanchiment
WO2000027960A2 (fr) * 1998-11-10 2000-05-18 The Procter & Gamble Company Compositions de blanchiment
WO2000027973A1 (fr) * 1998-11-10 2000-05-18 The Procter & Gamble Company Procedes de trempage de tissus
WO2000027964A1 (fr) * 1998-11-10 2000-05-18 The Procter & Gamble Company Procede permettant de laisser tremper les tissus
US6440921B1 (en) * 1998-11-10 2002-08-27 The Procter & Gamble Company Bleaching compositions
WO2000027970A2 (fr) * 1998-11-10 2000-05-18 The Procter & Gamble Company Compositions de blanchiment
WO2000027967A1 (fr) * 1998-11-10 2000-05-18 The Procter & Gamble Company Compositions de blanchiment
WO2000027970A3 (fr) * 1998-11-10 2000-08-24 Procter & Gamble Compositions de blanchiment
EP1010751A2 (fr) * 1998-12-14 2000-06-21 The Procter & Gamble Company Compositions de blanchiment
EP1010751A3 (fr) * 1998-12-14 2000-08-09 The Procter & Gamble Company Compositions de blanchiment
WO2000036072A1 (fr) * 1998-12-14 2000-06-22 The Procter & Gamble Company Compositions de blanchiment
EP1010750A1 (fr) * 1998-12-14 2000-06-21 The Procter & Gamble Company Compositions de blanchiment
US6548470B1 (en) 1998-12-14 2003-04-15 The Procter & Gamble Company Bleaching compositions
US6537958B1 (en) * 1999-11-10 2003-03-25 The Procter & Gamble Company Bleaching compositions
US6693069B2 (en) * 1999-12-23 2004-02-17 Ecolab Gmbh & Co. Ohg Disinfecting compositions and processes for disinfecting surfaces
WO2002012431A1 (fr) * 2000-08-10 2002-02-14 Ecolab Gmbh & Co. Ohg Peracides sous forme pateuse
EP1523474B2 (fr) † 2002-07-12 2012-12-19 Solvay Specialty Polymers Italy S.p.A. Formes cristallines d'acides imidoalkanpercarboxyliques
WO2004053038A1 (fr) * 2002-12-06 2004-06-24 Henkel Kommanditgesellschaft Auf Aktien Detergent liquide acide
DE10257389A1 (de) * 2002-12-06 2004-06-24 Henkel Kgaa Flüssiges saures Waschmittel
AU2004243597B2 (en) * 2003-05-28 2010-09-16 Ecolab Inc. Biocidic detergent
EP1482026A1 (fr) * 2003-05-28 2004-12-01 Ecolab Inc. Détergent biocide
WO2004106480A1 (fr) * 2003-05-28 2004-12-09 Ecolab Inc. Detergent biocidique
JP4819681B2 (ja) * 2003-05-28 2011-11-24 イーコラブ インコーポレイティド 殺生物性洗浄剤
JP2007502853A (ja) * 2003-05-28 2007-02-15 イーコラブ インコーポレイティド 殺生物性洗浄剤
US7531498B2 (en) 2003-06-13 2009-05-12 Henkel Kommanditgesellschaft Auf Aktien (Henkel Kgaa) Peroxycarboxylic acid-based bleach compositions having a long shelf life
US8932631B2 (en) 2004-01-08 2015-01-13 Solvay Solexis S.P.A. Aqueous formulations of imidoalkanepercarboxylic acids
WO2005068470A3 (fr) * 2004-01-08 2005-09-15 Solvay Solexis Spa Formulations aqueuses d'acides imido-alcane-percarboxyliques
WO2005068470A2 (fr) * 2004-01-08 2005-07-28 Solvay Solexis S.P.A. Formulations aqueuses d'acides imido-alcane-percarboxyliques
WO2006048047A1 (fr) * 2004-11-08 2006-05-11 Ecolab Inc. Detergent biocide
US9359295B2 (en) 2008-03-28 2016-06-07 Ecolab USA, Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US10017720B2 (en) 2008-03-28 2018-07-10 Ecolab Usa Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US9253978B2 (en) 2008-03-28 2016-02-09 Ecolab USA, Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US9290448B2 (en) 2008-03-28 2016-03-22 Ecolab USA, Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US11827867B2 (en) 2008-03-28 2023-11-28 Ecolab Usa Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US9540598B2 (en) 2008-03-28 2017-01-10 Ecolab Usa Inc. Detergents capable of cleaning, bleaching, sanitizing and/or disinfecting textiles including sulfoperoxycarboxylic acids
US9676711B2 (en) 2008-03-28 2017-06-13 Ecolab Usa Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US11015151B2 (en) 2008-03-28 2021-05-25 Ecolab Usa Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US10669512B2 (en) 2008-03-28 2020-06-02 Ecolab Usa Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US10323218B2 (en) 2008-03-28 2019-06-18 Ecolab Usa Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US10077415B2 (en) 2008-03-28 2018-09-18 Ecolab Usa Inc. Detergents capable of cleaning, bleaching, sanitizing and/or disinfecting textiles including sulfoperoxycarboxylic acids
US9902627B2 (en) 2011-12-20 2018-02-27 Ecolab Usa Inc. Stable percarboxylic acid compositions and uses thereof
US9242879B2 (en) 2012-03-30 2016-01-26 Ecolab Usa Inc. Use of peracetic acid/hydrogen peroxide and peroxide-reducing agents for treatment of drilling fluids, frac fluids, flowback water and disposal water
US10017403B2 (en) 2012-03-30 2018-07-10 Ecolab Usa Inc. Use of peracetic acid/hydrogen peroxide and peroxide-reducing enzymes for treatment of drilling fluids, frac fluids, flowback water and disposal water
US9926214B2 (en) 2012-03-30 2018-03-27 Ecolab Usa Inc. Use of peracetic acid/hydrogen peroxide and peroxide-reducing agents for treatment of drilling fluids, frac fluids, flowback water and disposal water
US11180385B2 (en) 2012-10-05 2021-11-23 Ecolab USA, Inc. Stable percarboxylic acid compositions and uses thereof
US11939241B2 (en) 2012-10-05 2024-03-26 Ecolab Usa Inc. Stable percarboxylic acid compositions and uses thereof
US10031081B2 (en) 2013-03-05 2018-07-24 Ecolab Usa Inc. Peroxycarboxylic acid compositions suitable for inline optical or conductivity monitoring
US10165774B2 (en) 2013-03-05 2019-01-01 Ecolab Usa Inc. Defoamer useful in a peracid composition with anionic surfactants
US9675076B2 (en) 2013-03-05 2017-06-13 Ecolab Usa Inc. Peroxycarboxylic acid compositions suitable for inline optical or conductivity monitoring
US11026421B2 (en) 2013-03-05 2021-06-08 Ecolab Usa Inc. Efficient stabilizer in controlling self accelerated decomposition temperature of peroxycarboxylic acid compositions with mineral acids
US11206826B2 (en) 2013-03-05 2021-12-28 Ecolab Usa Inc. Defoamer useful in a peracid composition with anionic surfactants
US8822719B1 (en) 2013-03-05 2014-09-02 Ecolab Usa Inc. Peroxycarboxylic acid compositions suitable for inline optical or conductivity monitoring

Also Published As

Publication number Publication date
DE69122789D1 (de) 1996-11-28
CA2035790A1 (fr) 1991-08-14
EP0442549A3 (en) 1992-01-08
AU639296B2 (en) 1993-07-22
JPH04214800A (ja) 1992-08-05
GB9003200D0 (en) 1990-04-11
AU7086491A (en) 1991-08-15
DE69122789T2 (de) 1997-03-13
ES2093672T3 (es) 1997-01-01
EP0442549B1 (fr) 1996-10-23

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