DE69124258D1 - Tertiäre azeotrope zusammensetzungen von 43-10mee (cf 3?chfchfcf 2?cf 3?) und trans 1,2-dichloroethylen mit methanol oder ethanol - Google Patents

Tertiäre azeotrope zusammensetzungen von 43-10mee (cf 3?chfchfcf 2?cf 3?) und trans 1,2-dichloroethylen mit methanol oder ethanol

Info

Publication number
DE69124258D1
DE69124258D1 DE69124258T DE69124258T DE69124258D1 DE 69124258 D1 DE69124258 D1 DE 69124258D1 DE 69124258 T DE69124258 T DE 69124258T DE 69124258 T DE69124258 T DE 69124258T DE 69124258 D1 DE69124258 D1 DE 69124258D1
Authority
DE
Germany
Prior art keywords
chfchfcf
10mee
dichloroethylene
trans
methanol
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 - Fee Related
Application number
DE69124258T
Other languages
English (en)
Other versions
DE69124258T2 (de
Inventor
Abid Merchant
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of DE69124258D1 publication Critical patent/DE69124258D1/de
Application granted granted Critical
Publication of DE69124258T2 publication Critical patent/DE69124258T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/261—Alcohols; Phenols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/149—Mixtures of blowing agents covered by more than one of the groups C08J9/141 - C08J9/143
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/30—Materials not provided for elsewhere for aerosols
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used
    • C09K5/04—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
    • C09K5/041—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems
    • C09K5/044—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds
    • C09K5/045—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds containing only fluorine as halogen
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/50—Solvents
    • C11D7/5036—Azeotropic mixtures containing halogenated solvents
    • C11D7/5068—Mixtures of halogenated and non-halogenated solvents
    • C11D7/5077—Mixtures of only oxygen-containing solvents
    • C11D7/5081—Mixtures of only oxygen-containing solvents the oxygen-containing solvents being alcohols only
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C23G5/028—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons
    • C23G5/02803—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing fluorine
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2207/00—Foams characterised by their intended use
    • C08J2207/04—Aerosol, e.g. polyurethane foam spray
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
    • C09K2205/10—Components
    • C09K2205/12—Hydrocarbons
    • C09K2205/122—Halogenated hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
    • C09K2205/32—The mixture being azeotropic
    • 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
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces
    • C11D2111/22—Electronic devices, e.g. PCBs or semiconductors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/22—Secondary treatment of printed circuits
    • H05K3/26—Cleaning or polishing of the conductive pattern

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Metallurgy (AREA)
  • Thermal Sciences (AREA)
  • Emergency Medicine (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Detergent Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
DE69124258T 1990-10-11 1991-10-09 Tertiäre azeotrope zusammensetzungen von 43-10mee (cf 3?chfchfcf 2?cf 3?) und trans 1,2-dichloroethylen mit methanol oder ethanol Expired - Fee Related DE69124258T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/595,834 US5064560A (en) 1990-10-11 1990-10-11 Ternary azeotropic compositions of 43-10mee (CF3 CHFCHFCH2 CF.sub.
PCT/US1991/007218 WO1992007111A1 (en) 1990-10-11 1991-10-09 Ternary azeotropic compositions of 43-10mee (cf3chfchfcf2cf3) and trans 1,2-dichloroethylene with methanol or ethanol

Publications (2)

Publication Number Publication Date
DE69124258D1 true DE69124258D1 (de) 1997-02-27
DE69124258T2 DE69124258T2 (de) 1997-07-17

Family

ID=24384867

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69124258T Expired - Fee Related DE69124258T2 (de) 1990-10-11 1991-10-09 Tertiäre azeotrope zusammensetzungen von 43-10mee (cf 3?chfchfcf 2?cf 3?) und trans 1,2-dichloroethylen mit methanol oder ethanol

Country Status (10)

Country Link
US (1) US5064560A (de)
EP (1) EP0552286B1 (de)
JP (1) JP3140777B2 (de)
CN (1) CN1034521C (de)
AU (1) AU8879891A (de)
DE (1) DE69124258T2 (de)
MX (1) MX9100528A (de)
MY (1) MY107190A (de)
TW (1) TW197469B (de)
WO (1) WO1992007111A1 (de)

Families Citing this family (57)

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FR2658532B1 (fr) * 1990-02-20 1992-05-15 Atochem Application des (perfluoroalkyl)-ethylenes comme agents de nettoyage ou de sechage, et compositions utilisables a cet effet.
US5458800A (en) * 1990-02-20 1995-10-17 Societe Atochem Use of (perfluoroalkyl) ethylenes as cleaning or drying agents, and compositions which can be used for this purpose
DE4006952A1 (de) * 1990-03-06 1991-09-12 Hoechst Ag Verfahren zur herstellung von schaumstoffen mit hilfe von treibmitteln, die fluoralkane und fluorierte ether enthalten, sowie nach diesem verfahren erhaeltliche schaumstoffe
US5064559A (en) * 1990-10-11 1991-11-12 E. I. Du Pont De Nemours And Company Binary azeotropic compositions of (CF3 CHFCHFCF2 CF3) with methanol or ethanol or isopropanol
US5064560A (en) * 1990-10-11 1991-11-12 E. I. Du Pont De Nemours And Company Ternary azeotropic compositions of 43-10mee (CF3 CHFCHFCH2 CF.sub.
US5531916A (en) * 1990-10-03 1996-07-02 E. I. Du Pont De Nemours And Company Hydrofluorocarbon cleaning compositions
US5171902A (en) * 1990-10-11 1992-12-15 E. I. Du Pont De Nemours And Company Saturated linear polyfluorohydrocarbons, processes for their production, and their use in cleaning compositions
US5250213A (en) * 1991-05-06 1993-10-05 E. I. Du Pont De Nemours And Company 1,1,1,2,2,3,3,4,4,5,6-undecafluorohexane and use thereof in compositions and processes for cleaning
EP0516029B1 (de) * 1991-05-28 1995-04-05 Daikin Industries, Limited Verfahren zum Trocknen von Gegenständen
DE4121161A1 (de) * 1991-06-27 1993-01-07 Basf Ag Verfahren zur herstellung von urethan- oder urethan- und isocyanuratgruppen enthaltenden hartschaumstoffen und treibmittel enthaltende emulsionen hierfuer
US5665569A (en) * 1991-08-22 1997-09-09 Nissin Shokuhin Kabushiki Kaisha HIV immunotherapeutics
US5268122A (en) 1991-08-28 1993-12-07 E. I. Du Pont De Nemours And Company Gem-dihydropolyfluoroalkanes and monohydropolyfluoroalkenes, processes for their production, and use of gem-dihydropolyfluoroalkanes in cleaning compositions
US5196137A (en) * 1991-10-01 1993-03-23 E. I. Du Pont De Nemours And Company Azeotropic composition of 1,1,1,2,3,4,4,5,5,5-decafluoropentane and trans-1,2-dichloroethylene, cis-1,2-dichloroethylene or 1,1-dichlorethane
US6355113B1 (en) 1991-12-02 2002-03-12 3M Innovative Properties Company Multiple solvent cleaning system
EP0556722A1 (de) * 1992-02-19 1993-08-25 Hoechst Aktiengesellschaft Verfahren zur Senkung des Gesamtdruckes in Aerosol-Packungen
US5401429A (en) * 1993-04-01 1995-03-28 Minnesota Mining And Manufacturing Company Azeotropic compositions containing perfluorinated cycloaminoether
US5494601A (en) * 1993-04-01 1996-02-27 Minnesota Mining And Manufacturing Company Azeotropic compositions
US5578137A (en) * 1993-08-31 1996-11-26 E. I. Du Pont De Nemours And Company Azeotropic or azeotrope-like compositions including 1,1,1,2,3,4,4,5,5,5-decafluoropentane
BE1007699A3 (fr) * 1993-11-04 1995-10-03 Solvay Compositions comprenant du pentafluorobutane et utilisation de ces compositions.
WO1995032274A1 (fr) * 1994-05-19 1995-11-30 Ag Technology Co., Ltd. Composition solvante mixte
US5696307A (en) * 1994-01-21 1997-12-09 Alliedsignal Inc. Hydrofluoroalkanes as cleaning and degreasing solvents
US5501811A (en) 1995-04-24 1996-03-26 Dow Corning Corporation Azeotropes of octamethyltrisiloxane and aliphatic or alicyclic alcohols
US5492647A (en) 1995-05-08 1996-02-20 Dow Corning Corporation Octamethylcyclotetrasiloxane azeotropes
CN1184501A (zh) 1995-05-16 1998-06-10 美国3M公司 共沸物状组合物及其应用
US6008179A (en) * 1995-05-16 1999-12-28 3M Innovative Properties Company Azeotrope-like compositions and their use
EP1593734A3 (de) * 1995-05-16 2009-07-15 Minnesota Mining And Manufacturing Company Azeotropähnliche Zusammensetzungen und deren Verwendung
US5580906A (en) * 1995-05-19 1996-12-03 E. I. Du Pont De Nemours And Company Ternary azeotropic compositions
US5750488A (en) * 1996-01-04 1998-05-12 Crc Industries, Inc. Fluorinated cleaning solvents
US5827446A (en) * 1996-01-31 1998-10-27 E. I. Du Pont De Nemours And Company Nonafluoromethoxybutane compositions
US5759986A (en) * 1997-03-03 1998-06-02 Merchant; Abid Nazarali Decafluoropentane compositions
CN1217013A (zh) * 1996-04-29 1999-05-19 纳幕尔杜邦公司 十氟戊烷组合物
US5897809A (en) * 1996-05-30 1999-04-27 E. I. Du Pont De Nemours And Company Decafluoropentane compositions
FR2759090B1 (fr) * 1997-02-04 1999-03-05 Atochem Elf Sa Compositions de nettoyage ou de sechage a base de 1,1,1,2,3,4,4,5,5,5-decafluoropentane
US6030934A (en) * 1997-02-19 2000-02-29 3M Innovative Properties Company Azeotropic compositions of methoxy-perfluoropropane and their use
FR2760463B1 (fr) 1997-03-04 2000-12-08 Atochem Elf Sa Compositions pour le sechage de surfaces solides
EP0994929B1 (de) * 1997-07-09 2004-09-22 Great Lakes Chemical Corporation Azeotrope sowie azeotropähnliche zusammensetzungen aus 1-brompropan undhochfluorierten kohlenwasserstoffen
US6689734B2 (en) 1997-07-30 2004-02-10 Kyzen Corporation Low ozone depleting brominated compound mixtures for use in solvent and cleaning applications
US5834416A (en) * 1997-08-19 1998-11-10 Dow Corning Corporation Azeotropes of alkyl esters and hexamethyldisiloxane
US6022842A (en) * 1998-02-11 2000-02-08 3M Innovative Properties Company Azeotrope-like compositions including perfluorobutyl methyl ether, 1- bromopropane and alcohol
US6274543B1 (en) 1998-06-05 2001-08-14 3M Innovative Properties Company Cleaning and coating composition and methods of using same
FR2781499B1 (fr) 1998-07-24 2000-09-08 Atochem Elf Sa Compositions de nettoyage ou de sechage a base de 1,1,1,2,3,4,4,5,5, 5 - decafluoropentane
US6852684B1 (en) * 1998-09-21 2005-02-08 E. I. Du Pont De Nemours And Company Non-flammable, high-solvency compositions comprising trans-1,2-dichloroethylene, solvent, and inerting agent
US6951835B1 (en) * 1999-03-22 2005-10-04 E.I. Du Pont De Nemours And Company Azeotrope-like compositions of 1,1,1,3,3-pentafluorobutane
FR2792648B1 (fr) * 1999-04-22 2001-06-08 Atochem Elf Sa COMPOSITIONS DE NETTOYAGE OU DE SECHAGE A BASE DE 43-10mee ET DE TRICHLORETHYLENE
EP1458796B1 (de) * 2001-12-18 2008-01-16 Honeywell International Inc. Pentafluorpropan-zusammensetzungen
US6699829B2 (en) 2002-06-07 2004-03-02 Kyzen Corporation Cleaning compositions containing dichloroethylene and six carbon alkoxy substituted perfluoro compounds
US9499729B2 (en) * 2006-06-26 2016-11-22 Honeywell International Inc. Compositions and methods containing fluorine substituted olefins
US20050211949A1 (en) * 2003-11-13 2005-09-29 Bivens Donald B Detectable refrigerant compositions and uses thereof
US7390777B2 (en) * 2004-02-13 2008-06-24 Ppg Industries Ohio, Inc. 1,2-dichloroethylene compositions
US20050269549A1 (en) * 2004-06-02 2005-12-08 Jinhuang Wu Polyol premixes incorporating trans-1, 2-dichloroethylene
US7524806B2 (en) * 2005-07-07 2009-04-28 Arkema Inc. Trans-1, 2-dichloroethylene and hydrofluorocarbon or alkoxy perfluoroalkane compositions having elevated flash points
US7943564B1 (en) 2008-01-21 2011-05-17 The Sherwin-Williams Company Hydrofluorocarbon cleaning compositions
US8388878B2 (en) * 2008-03-31 2013-03-05 Ppg Industries Ohio, Inc. Method for producing microporous sheet
CA2773453C (en) 2009-09-09 2018-10-09 Honeywell International Inc. Monochlorotrifluoropropene compounds and compositions and methods using same
US8232235B2 (en) * 2009-09-11 2012-07-31 3M Innovative Properties Company Ternary azeotropes containing 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)-pentane 5 and compositions made therefrom
WO2015175330A1 (en) * 2014-05-13 2015-11-19 The Chemours Company, Fc, Llc Compositions of methyl perfluoroheptene ethers, 1,1,1,2,2,3,4,5,5,5-decafluoropentane and trans-1,2-dichloroethylene and uses thereof
CN111004686A (zh) * 2019-10-21 2020-04-14 广东莱雅新化工科技有限公司 一种清洗剂

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AU615309B2 (en) * 1988-06-22 1991-09-26 Asahi Glass Company Limited Halogenated hydrocarbon solvents and use thereof
DE3911078A1 (de) * 1989-01-13 1990-10-11 Kali Chemie Ag Reinigungszusammensetzungen
AU635362B2 (en) * 1989-12-07 1993-03-18 Daikin Industries, Ltd. Cleaning composition
US5064559A (en) * 1990-10-11 1991-11-12 E. I. Du Pont De Nemours And Company Binary azeotropic compositions of (CF3 CHFCHFCF2 CF3) with methanol or ethanol or isopropanol
US5064560A (en) * 1990-10-11 1991-11-12 E. I. Du Pont De Nemours And Company Ternary azeotropic compositions of 43-10mee (CF3 CHFCHFCH2 CF.sub.
US5171902A (en) * 1990-10-11 1992-12-15 E. I. Du Pont De Nemours And Company Saturated linear polyfluorohydrocarbons, processes for their production, and their use in cleaning compositions

Also Published As

Publication number Publication date
MX9100528A (es) 1992-06-05
CN1060686A (zh) 1992-04-29
JP3140777B2 (ja) 2001-03-05
EP0552286A4 (en) 1993-09-15
US5064560A (en) 1991-11-12
WO1992007111A1 (en) 1992-04-30
EP0552286A1 (de) 1993-07-28
CN1034521C (zh) 1997-04-09
TW197469B (de) 1993-01-01
MY107190A (en) 1995-09-30
EP0552286B1 (de) 1997-01-15
JPH06502449A (ja) 1994-03-17
AU8879891A (en) 1992-05-20
DE69124258T2 (de) 1997-07-17

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