ATE199565T1 - Kältemittelzusammensetzung sowie verfahren zu deren benutzung - Google Patents

Kältemittelzusammensetzung sowie verfahren zu deren benutzung

Info

Publication number
ATE199565T1
ATE199565T1 AT92925474T AT92925474T ATE199565T1 AT E199565 T1 ATE199565 T1 AT E199565T1 AT 92925474 T AT92925474 T AT 92925474T AT 92925474 T AT92925474 T AT 92925474T AT E199565 T1 ATE199565 T1 AT E199565T1
Authority
AT
Austria
Prior art keywords
refrigerant composition
mixtures
ether
difluoroethane
cyclopropane
Prior art date
Application number
AT92925474T
Other languages
English (en)
Inventor
Cynthia L Gage
Jane C Bare
James A Register Iii
Norman Dean Smith
Original Assignee
Us Environment
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 Us Environment filed Critical Us Environment
Application granted granted Critical
Publication of ATE199565T1 publication Critical patent/ATE199565T1/de

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
    • 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
    • C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
    • C09K2205/10—Components
    • C09K2205/12—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
    • C09K2205/22—All components of a mixture being fluoro 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
    • C09K2205/34—The mixture being non-azeotropic

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)
  • Lubricants (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Detergent Compositions (AREA)
AT92925474T 1991-12-03 1992-12-02 Kältemittelzusammensetzung sowie verfahren zu deren benutzung ATE199565T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US80180091A 1991-12-03 1991-12-03
PCT/US1992/010374 WO1993011201A1 (en) 1991-12-03 1992-12-02 Refrigerant compositions and processes for using same

Publications (1)

Publication Number Publication Date
ATE199565T1 true ATE199565T1 (de) 2001-03-15

Family

ID=25182057

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92925474T ATE199565T1 (de) 1991-12-03 1992-12-02 Kältemittelzusammensetzung sowie verfahren zu deren benutzung

Country Status (10)

Country Link
US (2) US5650089A (de)
EP (1) EP0615538B1 (de)
JP (1) JPH07504889A (de)
CN (1) CN1045983C (de)
AT (1) ATE199565T1 (de)
AU (1) AU668534B2 (de)
CA (1) CA2125143A1 (de)
DE (1) DE69231725T2 (de)
MX (1) MX9206991A (de)
WO (1) WO1993011201A1 (de)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1005181A3 (fr) * 1991-08-19 1993-05-18 Solvay Compositions comprenant un ether fluore et utilisation de ces compositions.
KR940703901A (ko) * 1992-01-10 1994-12-12 수잔 제인 젠틀 냉매로서 유용한 조성물(compositions useful as refrigerants)
US5605882A (en) 1992-05-28 1997-02-25 E. I. Du Pont De Nemours And Company Azeotrope(like) compositions of pentafluorodimethyl ether and difluoromethane
US5762818A (en) * 1992-07-15 1998-06-09 E. I. Du Pont De Nemours And Company Compositions which include 1,1,2,2- tetrafluoroethane and fluoroethane
US5733472A (en) * 1992-07-15 1998-03-31 E. I. Du Pont De Nemours And Company Compositions which include 1,1,2,2-tetrafluoroethane and fluoropropane
AU4683893A (en) * 1992-07-28 1994-02-14 E.I. Du Pont De Nemours And Company Refrigerant compositions including pentafluorodimethyl ether
TW305874B (de) * 1992-10-14 1997-05-21 Du Pont
EP0669966A1 (de) * 1992-11-19 1995-09-06 E.I. Du Pont De Nemours And Company Kühlzusammensetzung die 1,1,2-trifluorethan enthält
US5538659A (en) * 1993-03-29 1996-07-23 E. I. Du Pont De Nemours And Company Refrigerant compositions including hexafluoropropane and a hydrofluorocarbon
US5484546A (en) * 1993-05-19 1996-01-16 E. I. Du Pont De Nemours And Company Refrigerant compositions including an acylic fluoroether
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
US5558810A (en) * 1994-11-16 1996-09-24 E. I. Du Pont De Nemours And Company Pentafluoropropane compositions
US6506459B2 (en) 1995-01-20 2003-01-14 3M Innovative Properties Company Coating compositions containing alkoxy substituted perfluoro compounds
US6548471B2 (en) 1995-01-20 2003-04-15 3M Innovative Properties Company Alkoxy-substituted perfluorocompounds
US5925611A (en) * 1995-01-20 1999-07-20 Minnesota Mining And Manufacturing Company Cleaning process and composition
US5718293A (en) * 1995-01-20 1998-02-17 Minnesota Mining And Manufacturing Company Fire extinguishing process and composition
WO1996040834A1 (en) * 1995-06-07 1996-12-19 E.I. Du Pont De Nemours And Company Refrigerants based on hydrofluoroether of fluoroether
US5681501A (en) * 1995-10-11 1997-10-28 E. I. Du Pont De Nemours And Company Compositions including a hydrofluoropropane
US5985939A (en) * 1995-10-11 1999-11-16 E.I. Du Pont De Nemours And Company Processes for producing aerosol propellants that include butane or isobutane
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
JP3783047B2 (ja) 1995-12-15 2006-06-07 スリーエム カンパニー クリーニング方法および組成物
US6688118B1 (en) 1996-03-01 2004-02-10 E. I. Du Pont De Nemours And Company Azeotropic compositions of cyclopentane
US5954995A (en) * 1996-03-22 1999-09-21 Goble; George H. Drop-in substitutes for 1,1,1,2-tetrafluoroethane (R-134a) refrigerant
US5730894A (en) * 1996-04-16 1998-03-24 E. I. Du Pont De Nemours And Company 1,1,2,2,3,3,4,4-octafluorobutane azeotropic (like) compositions
US5683974A (en) * 1996-06-20 1997-11-04 Alliedsignal Inc. Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and C1 -C3 alcohols for cleaning
GB9618180D0 (en) * 1996-08-30 1996-10-09 Ici Plc Refrigerant compositions
JP2001508825A (ja) * 1997-01-23 2001-07-03 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー ヒドロフルオロプロパンを含む組成物
US6030934A (en) 1997-02-19 2000-02-29 3M Innovative Properties Company Azeotropic compositions of methoxy-perfluoropropane and their use
US5788886A (en) * 1997-05-05 1998-08-04 E. I. Du Pont De Nemours And Company Pentafluoropropane compositions
US6881354B2 (en) * 1998-12-30 2005-04-19 Praxair Technology, Inc. Multicomponent refrigerant fluids for low and cryogenic temperatures
US6327866B1 (en) 1998-12-30 2001-12-11 Praxair Technology, Inc. Food freezing method using a multicomponent refrigerant
US6076372A (en) * 1998-12-30 2000-06-20 Praxair Technology, Inc. Variable load refrigeration system particularly for cryogenic temperatures
US6176102B1 (en) * 1998-12-30 2001-01-23 Praxair Technology, Inc. Method for providing refrigeration
US6374907B1 (en) * 1999-10-08 2002-04-23 3M Innovative Properties Company Hydrofluoroether as a heat-transfer fluid
US6303080B1 (en) * 1999-10-08 2001-10-16 3M Innovative Properties Company Hydrofluoroethers as heat-transfer fluids in low temperature processes requiring sterilization
US6253577B1 (en) 2000-03-23 2001-07-03 Praxair Technology, Inc. Cryogenic air separation process for producing elevated pressure gaseous oxygen
US6260380B1 (en) 2000-03-23 2001-07-17 Praxair Technology, Inc. Cryogenic air separation process for producing liquid oxygen
US6574973B1 (en) 2000-05-19 2003-06-10 Electric Power Research Institute, Inc. Ternary refrigerant compositions containing fluorinated ethers as replacements for R-22
US6546740B1 (en) 2000-05-19 2003-04-15 Clemson University Ternary refrigerant compositions which contain perfluoroorgano sulfur compounds as replacements for R-22
US6532752B1 (en) 2002-03-28 2003-03-18 Praxair Technology, Inc. Food freezing system
CN100491864C (zh) * 2002-12-03 2009-05-27 日本冷冻机株式会社 超低温用非共沸混合冷冻剂
CN100389165C (zh) * 2003-01-20 2008-05-21 天津大学 一种中高温热泵混合工质
JP2004360936A (ja) * 2003-06-02 2004-12-24 Sanden Corp 冷凍サイクル
US7153777B2 (en) * 2004-02-20 2006-12-26 Micron Technology, Inc. Methods and apparatuses for electrochemical-mechanical polishing
CA2645115A1 (en) 2006-03-14 2007-09-20 Asahi Glass Company, Limited Working fluid for heat cycle, rankine cycle system, heat pump cycle system, and refrigeration cycle system
US20080066474A1 (en) * 2006-09-20 2008-03-20 Michael Ramey Porter Refrigeration system energy efficiency enhancement using microsystems
WO2008157757A1 (en) * 2007-06-21 2008-12-24 E. I. Du Pont De Nemours And Company Method for leak detection in heat transfer system
US8323524B2 (en) * 2009-10-01 2012-12-04 3M Innovative Properties Company Apparatus including hydrofluoroether with high temperature stability and uses thereof
DE102011086476A1 (de) * 2011-09-30 2013-04-04 Siemens Aktiengesellschaft Hochtemperaturwärmepumpe und Verfahren zur Verwendung eines Arbeitsmediums in einer Hochtemperaturwärmepumpe
US8739567B2 (en) * 2012-06-08 2014-06-03 General Electric Company Dual evaporator refrigeration system using zeotropic refrigerant mixture
DE102013203243A1 (de) * 2013-02-27 2014-08-28 Siemens Aktiengesellschaft Wärmepumpe und Verfahren zum Betreiben einer Wärmepumpe
DE102013203240A1 (de) * 2013-02-27 2014-08-28 Siemens Aktiengesellschaft Kältemaschine und Verfahren zum Betreiben einer Kältemaschine
DE102013218565A1 (de) * 2013-09-17 2015-03-19 Siemens Aktiengesellschaft Verfahren zum Durchführen eines thermodynamischen Prozesses
CN110845995B (zh) * 2019-10-16 2021-01-29 珠海格力电器股份有限公司 一种环保混合工质及组合物和换热系统
CN114992919B (zh) * 2022-06-27 2023-06-06 珠海格力电器股份有限公司 制冷工质、制冷剂及制冷系统

Family Cites Families (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3362180A (en) * 1965-08-25 1968-01-09 Du Pont Chemical process
US3409555A (en) * 1965-08-25 1968-11-05 Du Pont Refrigerant composition
US3394878A (en) * 1965-08-25 1968-07-30 Du Pont Azeotropic compositions
US3922228A (en) * 1973-03-22 1975-11-25 Phillips Petroleum Co Azeotropic composition consisting of difluoromethyl trifluoromethylether and dimethyl ether
US4054036A (en) * 1976-12-21 1977-10-18 Allied Chemical Corporation Constant boiling mixtures of 1,1,2-trichlorotrifluoroethane and cis-1,1,2,2-tetrafluorocyclobutane
US4157979A (en) * 1978-04-07 1979-06-12 Phillips Petroleum Company Azeotropic compositions
US4580415A (en) * 1983-04-22 1986-04-08 Mitsubishi Denki Kabushiki Kaisha Dual refrigerant cooling system
GB8321569D0 (en) * 1983-08-10 1983-09-14 Ici Plc Heat pumps
DE3905726A1 (de) * 1989-02-24 1990-08-30 Hoechst Ag Druckgaspackung und treibmittel fuer aerosole
US4961321A (en) * 1989-02-28 1990-10-09 W. R. Grace & Co.-Conn. Bis (difluoromethyl) ether refrigerant
JP2841451B2 (ja) * 1989-04-14 1998-12-24 旭硝子株式会社 作動媒体
US5264462A (en) * 1989-08-31 1993-11-23 Imperial Chemical Industries Plc Polymeric foams
GB8919675D0 (en) * 1989-08-31 1989-10-11 Ici Plc Polymeric foams
JP2847797B2 (ja) * 1989-09-06 1999-01-20 ダイキン工業株式会社 作動流体
JPH0393883A (ja) * 1989-09-06 1991-04-18 Daikin Ind Ltd 作動流体
US4948526A (en) * 1989-09-26 1990-08-14 Allied-Signal Inc. Azeotrope-like compositions of pentafluorodimethyl ether and monochlorodifluoromethane
US4978467A (en) * 1989-09-26 1990-12-18 Allied-Signal Inc. Azeotrope-like compositions of pentafluoroethane and difluoromethane
FR2662944B2 (fr) * 1989-11-10 1992-09-04 Atochem Nouveau melange azeotropique a bas point d'ebullition a base de fluoroalcanes et ses applications.
US4994202A (en) * 1990-03-12 1991-02-19 E. I. Du Pont De Nemours And Company Azeotropic compositions of perfluoro-1,2-dimethylcyclobutane with 1,1-dichloro-1-fluoroethane or dichlorotrifluoroethane
GB9007645D0 (en) * 1990-04-04 1990-05-30 Ici Plc Solvent cleaning of articles
JP2792191B2 (ja) * 1990-04-04 1998-08-27 ダイキン工業株式会社 冷 媒
EP0526477B1 (de) * 1990-04-25 1994-12-14 E.I. Du Pont De Nemours And Company Halogenkohlenwasserstoffmischungen
DE4013369A1 (de) * 1990-04-26 1991-10-31 Hoechst Ag Neues azeotropes oder azeotropartiges gemisch aus 2,2,2-trifluorethyl-1,1,2,2-tetrafluorethylether und ethanol sowie dessen verwendung
US5023010A (en) * 1990-07-23 1991-06-11 E. I. Du Pont De Nemours And Company Binary azeotropic compositions of 1,1,1,2,3,3-hexafluoro-3-methoxypropane with methanol or isopropanol or N-propanol
ES2085688T3 (es) * 1990-07-26 1996-06-01 Du Pont Mezclas casi-azeotropicas para uso como refrigerantes.
JPH04110386A (ja) * 1990-08-31 1992-04-10 Daikin Ind Ltd 熱伝達用流体
JPH04110384A (ja) * 1990-08-31 1992-04-10 Daikin Ind Ltd 熱伝達用流体
US5023009A (en) * 1990-10-03 1991-06-11 E. I. Du Pont De Nemours And Company Binary azeotropic compositions of 1,1,1,2,3,3-hexafluoro-3-methoxypropane and 2,2,3,3,3-pentafluoropropanol-1
US5026498A (en) * 1990-10-03 1991-06-25 E. I. Du Pont De Nemours And Company Binary azeotropic compositions of 1,1,1,2,3,3-hexafluoro-3-methoxypropane with one of trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, 1,1-dichloro-1,2-difluoroethane or 1,2-dichloro-1,1,-difluoroethane
EP0576550B1 (de) * 1991-03-18 1996-05-22 AlliedSignal Inc. Nichtazeotropische zusammensetzungen die difluormethan, 1,1,1-trifluorethan undpropan enthalten
US5182040A (en) * 1991-03-28 1993-01-26 E. I. Du Pont De Nemours And Company Azeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluoroethane
US5091104A (en) * 1991-06-26 1992-02-25 Allied-Signal Inc. Azeotrope-like compositions of tertiary butyl 2,2,2-trifluoroethyl ether and perfluoromethylcyclohexane
KR940703901A (ko) * 1992-01-10 1994-12-12 수잔 제인 젠틀 냉매로서 유용한 조성물(compositions useful as refrigerants)
GB9200521D0 (en) * 1992-01-10 1992-02-26 Ici Plc Compositions useful as refrigerants
JPH05279659A (ja) * 1992-03-31 1993-10-26 Daikin Ind Ltd ランキンサイクル用作動流体
DE69308853T2 (de) * 1992-07-15 1997-09-18 Du Pont Kühlzusammensetzungen die 1,12,2-tetrafluorethan enthalten
AU4683893A (en) * 1992-07-28 1994-02-14 E.I. Du Pont De Nemours And Company Refrigerant compositions including pentafluorodimethyl ether
GB2274462A (en) * 1993-01-20 1994-07-27 Ici Plc Refrigerant composition
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
US5484546A (en) * 1993-05-19 1996-01-16 E. I. Du Pont De Nemours And Company Refrigerant compositions including an acylic fluoroether
TW283164B (de) * 1993-09-24 1996-08-11 Du Pont
US5417871A (en) * 1994-03-11 1995-05-23 E. I. Du Pont De Nemours And Company Hydrofluorocarbon compositions
US5558810A (en) * 1994-11-16 1996-09-24 E. I. Du Pont De Nemours And Company Pentafluoropropane compositions
GB9425160D0 (en) * 1994-12-10 1995-02-08 Glaxo Group Ltd Medicaments
US5562857A (en) * 1995-12-22 1996-10-08 Bayer Corporation Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and 2-methyl butane
US5672294A (en) * 1996-04-10 1997-09-30 Alliedsignal Inc. Azeotrope-like compositions of 1,1,1,3,3-pentaflurorpropane and hydrocarbons

Also Published As

Publication number Publication date
AU3151393A (en) 1993-06-28
CN1075977A (zh) 1993-09-08
CN1045983C (zh) 1999-10-27
DE69231725T2 (de) 2001-10-31
AU668534B2 (en) 1996-05-09
MX9206991A (es) 1994-08-31
DE69231725D1 (de) 2001-04-12
JPH07504889A (ja) 1995-06-01
WO1993011201A1 (en) 1993-06-10
EP0615538B1 (de) 2001-03-07
US5650089A (en) 1997-07-22
US6063305A (en) 2000-05-16
EP0615538A1 (de) 1994-09-21
CA2125143A1 (en) 1993-06-10

Similar Documents

Publication Publication Date Title
DE69231725D1 (de) Kältemittelzusammensetzung sowie verfahren zu deren benutzung
IT8424009A0 (it) Composizioni analgesiche ed anti-infiammatorie migliorate, comprendente xantine e metodi di utilizzare le stesse.
ITTO940765A0 (it) Procedimento per memorizzare e ritrovare immagini di persone, ad esem-pio in archivi fotografici e per la costruzione di identikit.
DK0812198T3 (da) Stabilisering af prostaglandinpræparater
DK0533673T3 (da) Azeotrop-lignende præparater af pentafluorethan og difluormethan
FI925169A7 (fi) Uusi ja parannettu menetelmä E. coli:n määrittämiseksi vedestä
DE69108292D1 (de) Verfahren zur Reinigung von Fluor enthaltenden Fluiden sowie entsprechende Vorrichtungen.
ATE116353T1 (de) Azeotropähnliche zusammensetzungen von pentafluormethan, 1,1,1-trifluoräthan und chlordifluormethan.
ATE179203T1 (de) Kühlzusammensetzungen
DK0587633T3 (da) Fremgangsmåde til isolering af rør
DE69531356D1 (de) Kristallisierung von levobupivacaine und deren analogen
IT8024878A0 (it) Procedimento per la realizzazione di componenti di raccorderia per tubi, e componenti cosi' ottenuti.
BR9100978A (pt) Processos para preparar 1,1,1-trifluorocloroetano e 1,1,1,2-tetrafluoroetano
IT8919425A0 (it) Fluorurazione diretta di fluoro b sultoni ai corrispondenti fluorossi fluorosulfonil fluorocomposti.
FI933065A7 (fi) Menetelmä atsabisyklo(2.2.2)oktaani-3-imiinien valmistamiseksi ja menetelmässä käytetyt välituotteet
RU93005302A (ru) 5,6-дизамещенные-3-пиридилметиламмонийгалоидные соединения, применяемые для получения 5-(замещенный метил)-2,3-пиридинкарбоновых кислот
ATE139557T1 (de) Zusammensetzungen die 1,1,1,2-tetrafluoroethan enthalten und verwendung von diesen zusammensetzungen
ATE154346T1 (de) N-5-geschützte 2,5-diamino-4,6-dichlorpyrimidine und verfahren zu deren herstellung
DE59204576D1 (de) Verfahren zur Herstellung von Fluor enthaltenden Ethanderivaten.
FR2710344B1 (fr) Compositions de polyéthylènes réticulables, utilisées notamment pour la fabrication de tubes et de gaines flexibles.
DE69627688D1 (de) Kühlmittelzusammensetzungen
DE3579916D1 (de) Fluorsubstituierte phenylbenzoate und deren herstellung.
IT9019586A0 (it) Giunto di dilatazione flessibile per tubazioni,e procedimento per la realizzazione di detto giunto
FI954401L (fi) Atseotrooppimaiset koostumukset, joissa on 1,1,1,2,3,3,3-heptafluoripropaania ja 1,1-difluorietaania
IT213227Z2 (it) Anello di fissaggio,in particolareper giunti di tubazioni

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties