GR3004888T3 - - Google Patents

Info

Publication number
GR3004888T3
GR3004888T3 GR920401231T GR920401231T GR3004888T3 GR 3004888 T3 GR3004888 T3 GR 3004888T3 GR 920401231 T GR920401231 T GR 920401231T GR 920401231 T GR920401231 T GR 920401231T GR 3004888 T3 GR3004888 T3 GR 3004888T3
Authority
GR
Greece
Prior art keywords
refrigerant
producing
halocarbons
halocarbon
boiling point
Prior art date
Application number
GR920401231T
Other languages
English (en)
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 filed Critical
Publication of GR3004888T3 publication Critical patent/GR3004888T3/el

Links

Classifications

    • 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
    • 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
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Polyurethanes Or Polyureas (AREA)
GR920401231T 1987-06-09 1992-06-11 GR3004888T3 (el)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6007787A 1987-06-09 1987-06-09
US07/152,799 US4810403A (en) 1987-06-09 1988-02-05 Halocarbon blends for refrigerant use

Publications (1)

Publication Number Publication Date
GR3004888T3 true GR3004888T3 (el) 1993-04-28

Family

ID=26739537

Family Applications (1)

Application Number Title Priority Date Filing Date
GR920401231T GR3004888T3 (el) 1987-06-09 1992-06-11

Country Status (17)

Country Link
US (1) US4810403A (el)
EP (1) EP0299614B1 (el)
JP (1) JP2550154B2 (el)
KR (1) KR960000865B1 (el)
CN (1) CN1025214C (el)
AT (1) ATE75501T1 (el)
AU (1) AU597221B2 (el)
BR (1) BR8802765A (el)
CA (1) CA1314139C (el)
DE (1) DE3870525D1 (el)
ES (1) ES2030503T3 (el)
GR (1) GR3004888T3 (el)
HK (1) HK64092A (el)
IN (1) IN169520B (el)
MX (1) MX166811B (el)
MY (1) MY102831A (el)
SG (1) SG65192G (el)

Families Citing this family (117)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0730311B2 (ja) * 1987-09-21 1995-04-05 ダイキン工業株式会社 冷 媒
JPH075880B2 (ja) * 1987-09-21 1995-01-25 ダイキン工業株式会社 冷 媒
JPH02267473A (ja) * 1989-04-06 1990-11-01 Matsushita Electric Ind Co Ltd 冷凍サイクル装置
US5049296A (en) * 1989-01-28 1991-09-17 Chujun Gu Working media for a thermodynamic engineering device operating in accordance with the Gu thermodynamic cycle
GB8903334D0 (en) * 1989-02-14 1989-04-05 Ici Plc Flame extinguishing compositions
JP2841430B2 (ja) * 1989-03-14 1998-12-24 旭硝子株式会社 作動媒体混合物
JPH02267472A (ja) * 1989-04-06 1990-11-01 Matsushita Electric Ind Co Ltd 冷凍サイクル装置
JPH02286780A (ja) * 1989-04-28 1990-11-26 Asahi Glass Co Ltd 圧縮式冷凍機用組成物
US4943388A (en) * 1989-06-28 1990-07-24 Allied-Signal Inc. Azeotrope-like compositions of pentafluoroethane; 1,1,1-trifluoroethane; and chlorodifluoromethane
GB2244492B (en) * 1989-09-12 1993-08-04 Star Refrigeration Three-component refrigerant mixture
US4978467A (en) * 1989-09-26 1990-12-18 Allied-Signal Inc. Azeotrope-like compositions of pentafluoroethane and difluoromethane
IL95894A0 (en) * 1989-10-10 1991-07-18 Great Lakes Chemical Corp Fire extinguishing compositions,methods and systems utilizing bromodifluoromethane
FR2662944B2 (fr) * 1989-11-10 1992-09-04 Atochem Nouveau melange azeotropique a bas point d'ebullition a base de fluoroalcanes et ses applications.
US5237828A (en) * 1989-11-22 1993-08-24 Nippondenso Co., Ltd. Air-conditioner for an automobile with non-azeotropic refrigerant mixture used to generate "cool head" and "warm feet" profile
EP0430131A1 (en) * 1989-11-29 1991-06-05 Matsushita Electric Industrial Co., Ltd. Working fluid
US5370811A (en) * 1989-11-30 1994-12-06 Matsushita Electric Industrial Co., Ltd. Working fluid containing tetrafluoroethane
JP2548411B2 (ja) * 1989-11-30 1996-10-30 松下電器産業株式会社 作動流体
EP0430171B1 (en) * 1989-11-30 1993-10-06 Matsushita Electric Industrial Co., Ltd. Working fluid
US5304319A (en) * 1989-11-30 1994-04-19 Matsushita Electric Industrial Co., Ltd. Working fluid
US5433879A (en) * 1989-11-30 1995-07-18 Matsushita Electric Industrial Co., Ltd. Working fluid containing difluoroethane
AU7470991A (en) * 1990-03-23 1991-10-21 California Institute Of Technology Near azeotropic mixture substitute for dichlorodifluoromethane
JP2792191B2 (ja) * 1990-04-04 1998-08-27 ダイキン工業株式会社 冷 媒
AU7562791A (en) * 1990-04-25 1991-11-11 E.I. Du Pont De Nemours And Company Halocarbon blends
US5262077A (en) * 1990-04-25 1993-11-16 E. I. Du Pont De Nemours And Company Halocarbon blends
FR2662947A1 (fr) * 1990-06-08 1991-12-13 Atochem Utilisation d'une composition a base d'halogenoalcanes comme agent extincteur.
FR2662946A1 (fr) * 1990-06-08 1991-12-13 Atochem Composition extinctrice a base de fluoroalcanes.
FR2662945B1 (fr) * 1990-06-08 1995-03-24 Atochem Utilisation d'un hydrogenofluoroalcane comme agent extincteur.
US5277834A (en) * 1990-07-26 1994-01-11 E. I. Du Pont De Nemours And Company Near-azeotropic blends for use as refrigerants
ATE115994T1 (de) 1990-07-26 1995-01-15 Du Pont Quasi-azeotrope mischungen zur verwendung als kältemittel.
JPH0532962A (ja) * 1990-08-24 1993-02-09 Daikin Ind Ltd 混合冷媒を用いた冷凍装置
US5304253A (en) * 1990-09-12 1994-04-19 Baxter International Inc. Method for cleaning with a volatile solvent
JPH089557B2 (ja) * 1990-10-19 1996-01-31 ダイキン工業株式会社 共沸乃至共沸様混合物およびこれを冷媒とする冷凍・空調装置
US5076064A (en) * 1990-10-31 1991-12-31 York International Corporation Method and refrigerants for replacing existing refrigerants in centrifugal compressors
GB9026512D0 (en) * 1990-12-05 1991-01-23 Star Refrigeration Multi-component refrigerant
US5185094A (en) * 1990-12-17 1993-02-09 E. I. Du Pont De Nemours And Company Constant boiling compositions of pentafluoroethane, difluoromethane, and tetrafluoroethane
US5643492A (en) * 1990-12-17 1997-07-01 E. I. Du Pont De Nemours And Company Constant boiling compositions of HFC-32, HFC-125 and HFC-134 A
US5722256A (en) * 1990-12-17 1998-03-03 E. I. Du Pont De Nemours And Company Air conditioner and heat pump with tetrafluoroethane-containing working fluid
US5151207A (en) * 1991-01-07 1992-09-29 Goble George H Drop-in substitute for dichlorodifluoromethane refrigerant
US5214929A (en) * 1991-01-07 1993-06-01 Goble George H Drop-in substitute for dichlorodifluoromethane refrigerant
BE1005222A3 (fr) * 1991-01-18 1993-06-01 Solvay Compositions comprenant du 1,1,1,2-tetrafluoroethane et utilisations de ces compositions.
ES2087536T3 (es) * 1991-03-18 1996-07-16 Allied Signal Inc Composiciones refrigerantes no azeotropicas que contienen difluorometano, 1,1,1-trifluoroetano, o propano.
US5725791A (en) * 1991-03-28 1998-03-10 E. I. Du Pont De Nemours And Company Azeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluoroethane
JP3469587B2 (ja) * 1991-04-02 2003-11-25 三洋電機株式会社 冷媒組成物
DE4116274C2 (de) * 1991-05-17 1998-03-19 Forschungszentrum Fuer Kaeltet Kältemittel
JPH0517750A (ja) * 1991-07-12 1993-01-26 Matsushita Electric Ind Co Ltd 作動流体
US5470496A (en) * 1991-07-12 1995-11-28 Matsushita Electric Industrial Co., Ltd. Working fluid containing chlorotetrafluoroethane
US5188749A (en) * 1991-07-15 1993-02-23 Elf Atochem North America, Inc. R22/r124/r142b refrigerant blends
US5232618A (en) * 1991-09-30 1993-08-03 E. I. Du Pont De Nemours And Company Substantially constant boiling compositions of difluoromethane and trifluoroethane or perfluoroethane
US5236611A (en) * 1991-10-28 1993-08-17 E. I. Du Pont De Nemours And Company Mixtures of perfluoropropane and trifluoroethane
JP2568774B2 (ja) * 1991-10-28 1997-01-08 松下電器産業株式会社 作動流体
US5290466A (en) * 1991-10-31 1994-03-01 E. I. Du Pont De Nemours And Company Compositions of difluoromethane and tetrafluoroethane
JPH05215424A (ja) * 1991-12-04 1993-08-24 Daikin Ind Ltd 混合冷媒を用いた冷凍装置
CN1031514C (zh) * 1992-01-24 1996-04-10 顾雏军 在热力循环中使用的改进的非共沸工作介质
US5635100A (en) 1992-01-24 1997-06-03 Chujun Gu Nonazeotropic working fluid media for use in thermodynamic cycle applications
US5294359A (en) * 1992-02-03 1994-03-15 Alliedsignal Inc. Refrigerant compositions
US5605882A (en) * 1992-05-28 1997-02-25 E. I. Du Pont De Nemours And Company Azeotrope(like) compositions of pentafluorodimethyl ether and difluoromethane
WO1994017153A1 (en) * 1993-01-20 1994-08-04 Imperial Chemical Industries Plc Refrigerant compositions
US5458798A (en) * 1993-02-05 1995-10-17 E. I. Du Pont De Nemours And Company Azeotropic and azeotrope-like compositions of a hydrofluorocarbon and a hydrocarbon
EP0687286B1 (en) * 1993-03-02 1996-10-16 E.I. Du Pont De Nemours And Company Compositions including a hexafluoropropane
IT1264126B1 (it) * 1993-04-05 1996-09-16 Ausimont Spa Composizioni a base di fluorocarburi idrogenati
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US5408848A (en) * 1994-02-25 1995-04-25 General Signal Corporation Non-CFC autocascade refrigeration system
US5417871A (en) * 1994-03-11 1995-05-23 E. I. Du Pont De Nemours And Company Hydrofluorocarbon compositions
US6001273A (en) 1994-03-11 1999-12-14 Minor; Barbara Haviland Binary azeotropes of difluoromethane and hydrocarbons
US5723429A (en) * 1994-03-11 1998-03-03 E. I. Du Pont De Nemours And Company Azeotropic or azeotrope-like compositions of tetrafluoroethane and chlorotetrafluoroethane
US5942149A (en) * 1994-04-26 1999-08-24 Weber, Iii; Harrison M. Environmentally safer replacement refrigerant for freon 12-based refrigeration systems
US5492643A (en) * 1994-04-26 1996-02-20 Kenneth B. Ruello, Jr. Environmentally safer replacement refrigerant for freon 12-based refrigeration systems
GB9414110D0 (en) * 1994-07-13 1994-08-31 Ici Plc Refrigeration compositions
GB9414136D0 (en) * 1994-07-13 1994-08-31 Ici Plc Refrigerant compositions
GB9414133D0 (en) * 1994-07-13 1994-08-31 Ici Plc Refrigerant compositions
GB9414134D0 (en) * 1994-07-13 1994-08-31 Ici Plc Refrigerant compositions
JP2795224B2 (ja) * 1995-07-20 1998-09-10 ダイキン工業株式会社 冷 媒
US6395699B1 (en) * 1995-08-14 2002-05-28 Asahi Glass Company Ltd. Method of removing grease, oil or flux from an article
AU7239596A (en) * 1995-09-21 1997-04-09 George H. Goble Drop-in substitutes for dichlorodifluoromethane refrigerant
US6875370B2 (en) * 1996-03-05 2005-04-05 George H. Goble Drop-in Substitutes for dichlorodifluoromethane refrigerant
GB9522701D0 (en) * 1995-11-07 1996-01-10 Star Refrigeration Centrifugal compression refrigerant composition
IT1277085B1 (it) 1995-12-14 1997-11-04 Ausimont Spa Composizioni ternarie quasi azeotropiche costituite da fluorocarburi idrogenati e idrocarburi adatte come fluidi refrigeranti
US5827446A (en) * 1996-01-31 1998-10-27 E. I. Du Pont De Nemours And Company Nonafluoromethoxybutane compositions
BR9711035A (pt) 1996-08-08 2000-01-11 Donald E Turner Refrigerante alternativo incluindo hexafluoropropileno.
GB9618207D0 (en) * 1996-08-30 1996-10-09 Ici Plc Refrigerant compositions
US5900185A (en) * 1996-09-27 1999-05-04 University Of New Mexico Tropodegradable bromine-containing halocarbon additives to decrease flammability of refrigerants, foam blowing agents, solvents, aerosol propellants, and sterilants
US6274062B1 (en) * 1996-10-07 2001-08-14 James B. Tieken Halocarbon/hydrocarbon refrigerant blend
US5989448A (en) * 1998-03-20 1999-11-23 Ermak; Boris Refrigerant mixture containing hydrogen bromide
US6270689B1 (en) * 1998-03-26 2001-08-07 Ikon Corporation Blend compositions of trifluoroiodomethane, tetrafluoroethane and difluoroethane
US6604368B1 (en) 1999-10-04 2003-08-12 Refrigerant Products, Ltd. R 12 replacement refrigerant
US6606868B1 (en) 1999-10-04 2003-08-19 Refrigerant Products, Ltd. R 22 replacement refrigerant
US6629419B1 (en) 1999-10-04 2003-10-07 Refringerant Products Ltd. CFC 12 replacement refrigerant
US7329786B2 (en) * 2001-09-28 2008-02-12 Great Lakes Chemical Corporation Processes for producing CF3CFHCF3
GB0206413D0 (en) * 2002-03-19 2002-05-01 Refrigerant Products Ltd Refrigerant for centrifugal compressors
US7238299B2 (en) 2002-11-01 2007-07-03 Honeywell International Inc. Heat transfer fluid comprising difluoromethane and carbon dioxide
US20050038302A1 (en) * 2003-08-13 2005-02-17 Hedrick Vicki E. Systems and methods for producing fluorocarbons
GB0404343D0 (en) * 2004-02-27 2004-03-31 Rpl Holdings Ltd Refrigerant composition
US8715521B2 (en) 2005-02-04 2014-05-06 E I Du Pont De Nemours And Company Absorption cycle utilizing ionic liquid as working fluid
RU2008138476A (ru) * 2006-03-03 2010-04-10 Рпл Холдингз Лимитед (Gb) Композиция охлаждающего агента
EP2013309B1 (en) * 2006-03-03 2014-09-03 Rpl Holdings Limited Refrigerant composition
US20080153697A1 (en) * 2006-12-22 2008-06-26 E. I. Dupont De Nemours And Company Mixtures of ammonia and ionic liquids
US20090145912A1 (en) * 2007-12-11 2009-06-11 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Temperature-stabilized storage containers
US9174791B2 (en) * 2007-12-11 2015-11-03 Tokitae Llc Temperature-stabilized storage systems
US8215835B2 (en) * 2007-12-11 2012-07-10 Tokitae Llc Temperature-stabilized medicinal storage systems
US8069680B2 (en) 2007-12-11 2011-12-06 Tokitae Llc Methods of manufacturing temperature-stabilized storage containers
US8887944B2 (en) 2007-12-11 2014-11-18 Tokitae Llc Temperature-stabilized storage systems configured for storage and stabilization of modular units
US20110127273A1 (en) * 2007-12-11 2011-06-02 TOKITAE LLC, a limited liability company of the State of Delaware Temperature-stabilized storage systems including storage structures configured for interchangeable storage of modular units
US8215518B2 (en) * 2007-12-11 2012-07-10 Tokitae Llc Temperature-stabilized storage containers with directed access
US8377030B2 (en) * 2007-12-11 2013-02-19 Tokitae Llc Temperature-stabilized storage containers for medicinals
US9140476B2 (en) 2007-12-11 2015-09-22 Tokitae Llc Temperature-controlled storage systems
US9205969B2 (en) * 2007-12-11 2015-12-08 Tokitae Llc Temperature-stabilized storage systems
GB0922288D0 (en) 2009-12-21 2010-02-03 Rpl Holdings Ltd Non ozone depleting and low global warming potential refrigerants for refrigeration
US9447995B2 (en) 2010-02-08 2016-09-20 Tokitac LLC Temperature-stabilized storage systems with integral regulated cooling
US9372016B2 (en) 2013-05-31 2016-06-21 Tokitae Llc Temperature-stabilized storage systems with regulated cooling
JPWO2015140887A1 (ja) * 2014-03-17 2017-04-06 三菱電機株式会社 冷凍サイクル装置
US10330364B2 (en) 2014-06-26 2019-06-25 Hudson Technologies, Inc. System and method for retrofitting a refrigeration system from HCFC to HFC refrigerant
GB201505230D0 (en) 2015-03-27 2015-05-13 Rpl Holdings Ltd Non ozone depleting and low global warming refrigerant blends
CN107401850B (zh) * 2017-08-24 2023-07-14 上海加冷松芝汽车空调股份有限公司 适宜于自然工质的客车空调制冷系统
UA128086C2 (uk) 2017-11-27 2024-04-03 Рпл Холдінгз Лімітед Склади холодоагентів із низьким показником gwp
JP7224975B2 (ja) * 2019-03-11 2023-02-20 ダイキン工業株式会社 １，１，２－トリフルオロエタン（ｈｆｃ－１４３）を含む組成物
CN113631534A (zh) * 2019-03-11 2021-11-09 大金工业株式会社 含有1,1,2-三氟乙烷的组合物
EP4214292A2 (en) 2020-10-22 2023-07-26 RPL Holdings Limited Thermal pump refrigerants

Family Cites Families (9)

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US2641579A (en) * 1951-03-02 1953-06-09 Du Pont Azeotropic refrigerant composition of monochlorodifluoromethane and chloropentafluoroethane
BE790281A (fr) * 1971-10-20 1973-02-15 Du Pont Perfectionnements aux echangeurs de chaleur
US4303536A (en) * 1980-12-29 1981-12-01 Allied Corporation Nonazeotropic refrigerant composition containing monachlorodifluoromethane, and method of use
US4495776A (en) * 1981-10-13 1985-01-29 Vsesojuzny Nauchno-Issledovatelsky Experminetalno Konstruktorsky Institut Elektrobytovyky Machin I Priborov Method and cooling agent for freezing and storing products
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US4482465A (en) * 1983-03-07 1984-11-13 Phillips Petroleum Company Hydrocarbon-halocarbon refrigerant blends
FR2564955B1 (fr) * 1984-05-28 1987-03-20 Inst Francais Du Petrole Procede de production de chaleur et/ou de froid au moyen d'une machine a compression fonctionnant avec un fluide mixte de travail
AU3445384A (en) * 1984-10-18 1986-04-24 Boris Ermak Mixture of three refrigerants
JPH0812996B2 (ja) * 1991-07-15 1996-02-07 日本電気株式会社 バッファ回路

Also Published As

Publication number Publication date
MX166811B (es) 1993-02-08
CN1025214C (zh) 1994-06-29
IN169520B (el) 1991-11-02
DE3870525D1 (de) 1992-06-04
AU1752288A (en) 1988-12-15
EP0299614A3 (en) 1990-01-24
JPS641787A (en) 1989-01-06
KR890013155A (ko) 1989-09-21
SG65192G (en) 1992-09-04
ATE75501T1 (de) 1992-05-15
CN88103467A (zh) 1988-12-28
AU597221B2 (en) 1990-05-24
EP0299614B1 (en) 1992-04-29
EP0299614A2 (en) 1989-01-18
JP2550154B2 (ja) 1996-11-06
KR960000865B1 (ko) 1996-01-13
MY102831A (en) 1992-11-30
US4810403A (en) 1989-03-07
CA1314139C (en) 1993-03-09
ES2030503T3 (es) 1992-11-01
BR8802765A (pt) 1988-12-27
HK64092A (en) 1992-09-04

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