MX166374B - Un sistema de espumacion para espumas rigidas de uretano e isocianato - Google Patents

Un sistema de espumacion para espumas rigidas de uretano e isocianato

Info

Publication number
MX166374B
MX166374B MX020648A MX2064890A MX166374B MX 166374 B MX166374 B MX 166374B MX 020648 A MX020648 A MX 020648A MX 2064890 A MX2064890 A MX 2064890A MX 166374 B MX166374 B MX 166374B
Authority
MX
Mexico
Prior art keywords
mole percent
halocarbon
isocyanate
urethane
boiling point
Prior art date
Application number
MX020648A
Other languages
English (en)
Inventor
Guido Freddy Smits
Henri Jacobus Marie Grunbauer
Original Assignee
Dow Chemical 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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of MX166374B publication Critical patent/MX166374B/es

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • 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
    • C08J9/143—Halogen containing compounds
    • 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
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

La presente invención se refiere a un proceso para preparar una espuma rígida, de celdas cerradas, a base de poliisocianato que comprende hacer reaccionar un poliisocianato orgánico con un compuesto que contiene hidrógeno activo, en presencia de un agente soplador, caracterizado dicho proceso porque el agente soplador comprende a) de 40 a 95 por ciento molar, con base en los componentes a9 y b) de por lo menos un compuesto de halogenocarbono que tiene un punto de ebullición de por lo menos 283 grados C y b) de 5 a 60 por ciento molar, con un compuesto de halogenocarbono que tiene un punto de ebullición inferior a o igual a alrededor de 266 grados K; y en donde la relación del punto de ebullición de un covmponente a) al de un componente b) es de 1.06:1 a 1.20:1 Una espuma rígida de celdas cerradas, a base de poliisocianato, caracterizado además porque la espuma resultante contienen dentro de sus celdas una composicivón gaseosa que cvomprende : a) de 30 a 85 por ciento molar con base en los componentes (a) y (b) de una mezcla, la cual a su vez comprende (1) y (2) de un compuesto halogenocarbono que tiene un punto de ebullición de por lo menos 283 grados K y (2) de 5 a 60 por ciento molar base en los componentes (1) y (2) de un compuesto halogenocarbono que tiene un punto de ebullición inferior o igual a 266 grados K y en donde la relación del punto de ebullición del componente 81) respecto al componente (2) es de 1.067 a 1.20:1. Una composición de isocianato reactivo, caracterizado porque el agente soplador está presente en una cantidad de 1 a 30 por ciento en peso, con base en el peso total del compuesto o los compuestos que contienen hidrógeno activo.
MX020648A 1989-05-10 1990-05-09 Un sistema de espumacion para espumas rigidas de uretano e isocianato MX166374B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/350,184 US4945119A (en) 1989-05-10 1989-05-10 Foaming system for rigid urethane and isocyanurate foams

Publications (1)

Publication Number Publication Date
MX166374B true MX166374B (es) 1993-01-05

Family

ID=23375568

Family Applications (1)

Application Number Title Priority Date Filing Date
MX020648A MX166374B (es) 1989-05-10 1990-05-09 Un sistema de espumacion para espumas rigidas de uretano e isocianato

Country Status (16)

Country Link
US (1) US4945119A (es)
EP (1) EP0398147B1 (es)
JP (1) JP3072847B2 (es)
KR (1) KR0155549B1 (es)
AT (1) ATE113973T1 (es)
AU (1) AU625203B2 (es)
BR (1) BR9002195A (es)
CA (1) CA2016329C (es)
DD (1) DD294269A5 (es)
DE (1) DE69013975T2 (es)
ES (1) ES2063192T3 (es)
IE (1) IE66821B1 (es)
MX (1) MX166374B (es)
NO (1) NO178502C (es)
NZ (1) NZ233596A (es)
TW (1) TW204358B (es)

Families Citing this family (95)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5688834A (en) * 1991-08-30 1997-11-18 Alliedsignal, Inc. Catalysts which stabilize hydrohalocarbon blowing agent in polyurethane foam formulations
US5001164A (en) * 1988-08-19 1991-03-19 The Dow Chemical Company Polyurethane foam prepared with reduced levels of hard halocarbon blowing agents
DE3903336A1 (de) * 1989-02-04 1990-08-09 Bayer Ag Verwendung von c(pfeil abwaerts)3(pfeil abwaerts)- bis c(pfeil abwaerts)5(pfeil abwaerts)-polyfluoralkanen als treibgase
US5084190A (en) * 1989-11-14 1992-01-28 E. I. Du Pont De Nemours And Company Fire extinguishing composition and process
US5120770A (en) * 1989-11-29 1992-06-09 Doyle Earl N Use of liquid carbon dioxide as a blowing agent in the production of open-cell polyurethane foam
EP0432672B1 (de) * 1989-12-12 1997-03-19 SOLVAY (Société Anonyme) Verfahren zur Herstellung von Schaumstoffen mit Hilfe von Fluoralkanen
US5049301A (en) * 1989-12-20 1991-09-17 Allied-Signal Inc. Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; and methyl formate
IL97065A (en) * 1990-02-02 1994-01-25 Fisons Plc Repellent preparations for aerosol
FR2657877B1 (fr) * 1990-02-07 1992-05-15 Atochem Composition nettoyante a base de 1,1-dichloro-1-fluoroethane, de formiate de methyle et de methanol.
FR2657876B1 (fr) * 1990-02-07 1992-05-15 Atochem Composition nettoyante a base de 1,1-dichloro-1-fluoroethane et de formiate de methyle.
ES2080299T5 (es) * 1990-03-23 2001-02-01 Du Pont Espumas polimericas que contienen agentes bloqueantes.
US6121337A (en) * 1990-03-23 2000-09-19 E. I. Du Pont De Nemours And Company Compositions containing 1,1,2,2-tetrafluoroethane (HFC-134) for closed-cell polymer foam production
WO1991014724A2 (en) * 1990-03-23 1991-10-03 E.I. Du Pont De Nemours And Company Polymer foams containing gas barrier resins
US5262077A (en) * 1990-04-25 1993-11-16 E. I. Du Pont De Nemours And Company Halocarbon blends
CA2079776A1 (en) * 1990-04-25 1991-10-26 Donald B. Bivens Halocarbon blends
US5039442A (en) * 1990-06-05 1991-08-13 Allied-Signal Inc. Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, dichloromethane and optionally alkanol
US5124366A (en) * 1990-11-05 1992-06-23 The Celotex Corporation Polyisocyanurate foams made with polyester polyols and chlorodifluoromethane as a blowing agent
US5286759A (en) * 1991-03-08 1994-02-15 The Dow Chemical Company Foaming system for rigid urethane and isocyanurate foams
ATE246497T1 (de) * 1991-06-10 2003-08-15 Schering Corp Fluorchlorkohlenwasserstoffreie aerosolformulierungen
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
US5308885A (en) * 1991-09-20 1994-05-03 Miles Inc. HCFC blown rigid foams with low thermal conductivity
US5272183A (en) * 1991-09-20 1993-12-21 Miles Inc. HCFC blown rigid foams with low thermal conductivity
US5254601A (en) * 1991-09-20 1993-10-19 Miles Inc. HCEC blown rigid foams with low thermal conductivity
ATE204743T1 (de) * 1991-12-18 2001-09-15 Minnesota Mining & Mfg Aerosolzusammensetzungen für arzneimittelsuspensionen
US7105152B1 (en) 1991-12-18 2006-09-12 3M Innovative Properties Company Suspension aerosol formulations
US7101534B1 (en) 1991-12-18 2006-09-05 3M Innovative Properties Company Suspension aerosol formulations
AU3936293A (en) * 1992-03-26 1993-10-21 Great Lakes Chemical Corporation Azeotrope-like compositions of 1,1,1,2,3,3,3-heptafluoropropane and 1,1-difluoroethane
US5248433A (en) * 1992-04-30 1993-09-28 E. I. Du Pont De Nemours And Company Binary azeotropic mixtures of octafluoropropane and fluoroethane
CA2107274C (en) * 1992-12-31 1998-11-03 Valeri L. Valoppi 1,1,1,2-tetrafluoroethane as a blowing agent in integral skin polyurethane shoe soles
ZA941898B (en) * 1993-03-19 1994-10-18 Great Lakes Chemical Corp Azeotrope-like compositions of 1,1,1,2,3,3,3-heptafluoropropane and 1,1-difluoroethane
US5278196A (en) * 1993-03-25 1994-01-11 Great Lakes Chemical Corp. Hydrofluorocarbon compositions as blowing agents for cellular plastics
US5492688A (en) * 1993-04-28 1996-02-20 The Center For Innovative Technology Metered dose inhaler fomulations which include the ozone-friendly propellant HFC 134a and a pharmaceutically acceptable suspending, solubilizing, wetting, emulsifying or lubricating agent
US5430071A (en) * 1994-07-08 1995-07-04 Basf Corporation Dimensionally stable closed cell rigid polyisocyanate based foam prepared from a froth foaming mixture
US5451615A (en) * 1994-10-20 1995-09-19 The Dow Chemical Company Process for preparing polyurethane foam in the presence of a hydrocarbon blowing agent
US6355700B1 (en) * 1994-11-24 2002-03-12 Matsushita Refrigeration Company Foamed thermal insulating material and insulated structure
US5470891A (en) * 1995-04-10 1995-11-28 Basf Corporation Dimensionally stable closed cell rigid polyisocyanate based foam prepared from a froth foaming mixture
US5688833A (en) * 1996-07-11 1997-11-18 Alliedsignal Inc. Azeotrope-like compositions of 1 1 1 3 3-pentafluoropropane and 1 1-dichloro-1-fluoroethane
US5840212A (en) * 1996-10-23 1998-11-24 Bayer Corporation Rigid foams with improved insulation properties and a process for the production of such foams
WO1999061504A1 (en) * 1998-05-21 1999-12-02 Huntsman Ici Chemicals Llc Hydrocarbon blown rigid polyurethane foams having improved flammability performance
ES2237939T3 (es) 1998-09-10 2005-08-01 Dow Global Technologies Inc. Polioles utiles para preparar espuma de poliuretano rigida insuflada con agua.
US5958992A (en) * 1998-11-24 1999-09-28 Elf Atochem North America, Inc. Blowing agent blends
US6403663B1 (en) 1999-09-20 2002-06-11 North Carolina State University Method of making foamed materials using surfactants and carbon dioxide
US20050096246A1 (en) 2003-11-04 2005-05-05 Johnson Robert C. Solvent compositions containing chlorofluoroolefins
GB0208742D0 (en) 2002-04-17 2002-05-29 Bradford Particle Design Ltd Particulate materials
US6495722B1 (en) 2001-09-17 2002-12-17 Huntsman Petrochemical Corporation Mannich polyols for rigid spray foams
US7329786B2 (en) * 2001-09-28 2008-02-12 Great Lakes Chemical Corporation Processes for producing CF3CFHCF3
US6753357B2 (en) * 2001-12-18 2004-06-22 Foam Supplies, Inc. Rigid foam compositions and method employing methyl formate as a blowing agent
US7582284B2 (en) * 2002-04-17 2009-09-01 Nektar Therapeutics Particulate materials
US7833433B2 (en) 2002-10-25 2010-11-16 Honeywell International Inc. Heat transfer methods using heat transfer compositions containing trifluoromonochloropropene
AU2013202894B2 (en) * 2002-10-25 2014-09-25 Honeywell International, Inc. Compositions containing flourine substituted olefins
US9796848B2 (en) 2002-10-25 2017-10-24 Honeywell International Inc. Foaming agents and compositions containing fluorine substituted olefins and methods of foaming
ES2728672T3 (es) † 2002-10-25 2019-10-28 Honeywell Int Inc Composiciones que contienen olefinas sustituidas con flúor
US20090253820A1 (en) * 2006-03-21 2009-10-08 Honeywell International Inc. Foaming agents and compositions containing fluorine sustituted olefins and methods of foaming
US7279451B2 (en) * 2002-10-25 2007-10-09 Honeywell International Inc. Compositions containing fluorine substituted olefins
US20040089839A1 (en) * 2002-10-25 2004-05-13 Honeywell International, Inc. Fluorinated alkene refrigerant compositions
US9005467B2 (en) 2003-10-27 2015-04-14 Honeywell International Inc. Methods of replacing heat transfer fluids
US8033120B2 (en) * 2002-10-25 2011-10-11 Honeywell International Inc. Compositions and methods containing fluorine substituted olefins
AU2015200222B2 (en) * 2002-10-25 2016-05-26 Honeywell International, Inc Compositions containing flourine substituted olefins
US20040082675A1 (en) * 2002-10-28 2004-04-29 Schilling Steven L. Rigid foams and a process for the production of such foams
US20050038302A1 (en) * 2003-08-13 2005-02-17 Hedrick Vicki E. Systems and methods for producing fluorocarbons
US7524805B2 (en) 2004-04-29 2009-04-28 Honeywell International Inc. Azeotrope-like compositions of tetrafluoropropene and hydrofluorocarbons
US9499729B2 (en) * 2006-06-26 2016-11-22 Honeywell International Inc. Compositions and methods containing fluorine substituted olefins
US7655610B2 (en) 2004-04-29 2010-02-02 Honeywell International Inc. Blowing agent compositions comprising fluorinated olefins and carbon dioxide
WO2011031697A2 (en) 2009-09-09 2011-03-17 Honeywell International Inc. Monochlorotrifluoropropene compounds and compositions and methods using same
US7629306B2 (en) 2004-04-29 2009-12-08 Honeywell International Inc. Compositions comprising tetrafluoropropene and carbon dioxide
AU2014277871B2 (en) * 2004-04-29 2016-06-30 Honeywell International, Inc. Compositions containing fluorine substituted olefins
US8008244B2 (en) 2004-04-29 2011-08-30 Honeywell International Inc. Compositions of tetrafluoropropene and hydrocarbons
AU2013203938B2 (en) * 2004-04-29 2014-09-25 Honeywell International, Inc. Compositions containing fluorine substituted olefins
AU2012202525B2 (en) * 2004-04-29 2014-08-14 Honeywell International, Inc. Compositions containing fluorine substituted olefins
US20050277701A1 (en) * 2004-06-15 2005-12-15 Honeywell International Inc. Process for making polyurethane and polyisocyanurate foams using mixtures of a hydrofluorocarbon and methyl formate as a blowing agent
US20220389297A1 (en) 2005-03-04 2022-12-08 The Chemours Company Fc, Llc Compositions comprising a fluoroolefin
US7569170B2 (en) 2005-03-04 2009-08-04 E.I. Du Pont De Nemours And Company Compositions comprising a fluoroolefin
US8420706B2 (en) * 2005-06-24 2013-04-16 Honeywell International Inc. Foaming agents, foamable compositions, foams and articles containing halogen substituted olefins, and methods of making same
TWI558685B (zh) * 2005-06-24 2016-11-21 哈尼威爾國際公司 含有經氟取代之烯烴之組合物
US8574451B2 (en) * 2005-06-24 2013-11-05 Honeywell International Inc. Trans-chloro-3,3,3-trifluoropropene for use in chiller applications
US20070098646A1 (en) 2005-11-01 2007-05-03 Nappa Mario J Aerosol propellants comprising unsaturated fluorocarbons
MY151990A (en) 2005-11-01 2014-07-31 Du Pont Solvent compositions comprising unsaturated fluorinated hydrocarbons
US9000061B2 (en) 2006-03-21 2015-04-07 Honeywell International Inc. Foams and articles made from foams containing 1-chloro-3,3,3-trifluoropropene (HFCO-1233zd)
WO2008097664A1 (en) 2007-02-11 2008-08-14 Map Pharmaceuticals, Inc. Method of therapeutic administration of dhe to enable rapid relief of migraine while minimizing side effect profile
WO2008134061A2 (en) 2007-04-27 2008-11-06 E. I. Du Pont De Nemours And Company Azeotropic and azeotrope-like compositions of z-1,1,1,4,4,4-hexafluoro-2-butene
BR122018074413B1 (pt) 2007-06-12 2019-03-19 E. I. Du Pont De Nemours And Company Composição e processo para produzir refrigeração
BRPI0815462A2 (pt) 2007-09-06 2015-02-18 Du Pont "composição, processos de preparação de uma espuma termoplástica ou termorretrátil, de produção de refrigeração, de fabricação de um produto de aerossol, de extinção ou supressão de incêndios e processos"
GB201002625D0 (en) 2010-02-16 2010-03-31 Ineos Fluor Holdings Ltd Heat transfer compositions
US8333901B2 (en) 2007-10-12 2012-12-18 Mexichem Amanco Holding S.A. De C.V. Heat transfer compositions
US8628681B2 (en) 2007-10-12 2014-01-14 Mexichem Amanco Holding S.A. De C.V. Heat transfer compositions
US8512591B2 (en) 2007-10-12 2013-08-20 Mexichem Amanco Holding S.A. De C.V. Heat transfer compositions
WO2009073487A1 (en) 2007-11-29 2009-06-11 E. I. Du Pont De Nemours And Company Compositions and use of cis-1,1,1,4,4,4-hexafluoro-2-butene foam-forming composition in the preparation of polyisocyanate-based foams
CA2941024C (en) * 2007-12-19 2018-12-04 E. I. Du Pont De Nemours And Company Foam-forming compositions containing azeotropic or azeotrope-like mixtures containing z-1,1,1,4,4,4-hexafluoro-2-butene and their uses in the preparation of polyisocyanate-based foams
CN102227395A (zh) * 2008-11-13 2011-10-26 苏威氟有限公司 氢氟烯烃、氢氟烯烃的制造以及使用氢氟烯烃的方法
GB201002622D0 (en) 2010-02-16 2010-03-31 Ineos Fluor Holdings Ltd Heat transfer compositions
US8821749B2 (en) 2010-04-26 2014-09-02 E I Du Pont De Nemours And Company Azeotrope-like compositions of E-1,1,1,4,4,4-hexafluoro-2-butene and 1-chloro-3,3,3-trifluoropropene
EP2571952B1 (en) 2010-05-20 2015-07-29 Mexichem Fluor S.A. de C.V. Heat transfer compositions
AU2011254381C1 (en) 2010-05-20 2014-09-18 Mexichem Amanco Holding S.A. De C.V. Heat transfer compositions
GB2481443B (en) 2010-06-25 2012-10-17 Mexichem Amanco Holding Sa Heat transfer compositions
US10330364B2 (en) 2014-06-26 2019-06-25 Hudson Technologies, Inc. System and method for retrofitting a refrigeration system from HCFC to HFC refrigerant

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391093A (en) * 1959-04-01 1968-07-02 Gen Tire & Rubber Co Polyester-polyurethane foams and method of making same
US3583921A (en) * 1967-03-01 1971-06-08 Colgate Palmolive Co Aerosol shaving creams pressurized with mixtures of water-soluble and water-insoluble halogenated hydrocarbon propellants
US3745203A (en) * 1971-08-19 1973-07-10 Cincinnati Milling Machine Co Process for molding polyurethane utilizing a mixture of two blowing agents
US4055521A (en) * 1975-10-08 1977-10-25 Allied Chemical Corporation Constant boiling ternary compositions and the process for using such compositions in the preparation of polyurethane foam
DE2738719A1 (de) * 1977-08-27 1979-03-08 Bayer Ag Verfahren zur herstellung von geschaeumten kunststoffen
US4636529A (en) * 1985-05-13 1987-01-13 Pennwalt Corporation Polyurethane foams from isocyanate, polyester polyol and chlorodifluoromethane
US4624970A (en) * 1985-05-16 1986-11-25 Allied Corporation Foaming system for rigid urethane and isocyanurate foams based on polyethers and aromatic polyester polyols
BR8900726A (pt) * 1988-02-22 1989-10-17 Du Pont Processo para preparacao de uma mistura util na fabricacao de espuma de poliuretano,e espuma de poliuretano
US5001164A (en) * 1988-08-19 1991-03-19 The Dow Chemical Company Polyurethane foam prepared with reduced levels of hard halocarbon blowing agents

Also Published As

Publication number Publication date
TW204358B (es) 1993-04-21
CA2016329A1 (en) 1990-11-10
EP0398147A2 (en) 1990-11-22
EP0398147A3 (en) 1991-03-20
KR0155549B1 (ko) 1998-12-01
DE69013975T2 (de) 1995-03-16
IE66821B1 (en) 1996-02-07
DD294269A5 (de) 1991-09-26
DE69013975D1 (de) 1994-12-15
ATE113973T1 (de) 1994-11-15
NO902045L (no) 1990-11-12
IE901682L (en) 1990-11-10
NO178502B (no) 1996-01-02
JPH0491140A (ja) 1992-03-24
CA2016329C (en) 2000-07-25
AU625203B2 (en) 1992-07-02
US4945119A (en) 1990-07-31
EP0398147B1 (en) 1994-11-09
JP3072847B2 (ja) 2000-08-07
BR9002195A (pt) 1991-08-13
NO902045D0 (no) 1990-05-09
NO178502C (no) 1996-04-10
KR900018191A (ko) 1990-12-20
ES2063192T3 (es) 1995-01-01
AU5482790A (en) 1990-11-15
NZ233596A (en) 1993-03-26

Similar Documents

Publication Publication Date Title
MX166374B (es) Un sistema de espumacion para espumas rigidas de uretano e isocianato
EP0353061A3 (en) Blowing agents for polyurethane foam
CA2016328A1 (en) Foaming system for rigid urethane and isocyanurate foams
ES2110647T3 (es) Procedimiento para la obtencion de plasticos celulares de poliuretano.
CA2086997A1 (en) Production of rigid polyurethane foams, and a blowing agent mixture for this purpose
AU5004790A (en) Polyisocyanate based foam prepared with reduced levels of hard halocarbon blowing agents
ATE106377T1 (de) Gemische von dimethyläther und 1,1,1,2- tetrafluoräthan und deren verwendungen.
PT95848A (pt) Processo para a preparacao de uma nova mistura azeotropica de baixo ponto de ebulicao a base de fluoroalcanos
ATE151790T1 (de) Harte polyurethan- und polyisocyanurat- schaumstoffe
TR199802657T2 (xx) Katı poliüretan köpükler için işlem
FI924558A (fi) Sammansaettningar av 1,1,1,-trifluoroetan, perfluoropropan och propan samt deras anvaendning som kylvaetskor, aerosoldrivgaser eller svaellningsaemne foer skumplast
CA2114252A1 (en) Process for the production of rigid foams containing urethane and isocyanurate groups
BR9303916A (pt) Processo para a preparaçao de espumas de poliuretana e corpos compositos
AU4644385A (en) Modified polyhydroxy compounds used for polyurethane foams
DE60016689D1 (de) Verfahren zur Herstellung von Polyurethan-Weichschaumstoffen mit niedriger Dichte
Cunningham et al. A Fundamental Study of the Thermal Conductivity Ageing of Rigid PUR Foam Blown With HFA-141 b/Carbon Dioxide and HFA-123/Carbon Dioxide Mixtures
TH32196EX (th) ระบบการผลิตโฟมสำหรับโฟมยูรีเธนแข็งและโฟมไอโซไซแอนนนูเรท
TH32196A (th) ระบบการผลิตโฟมสำหรับโฟมยูรีเธนแข็งและโฟมไอโซไซแอนนนูเรท
Voelker et al. Technology for the production of plates of foamed plastic material with high compressive strength
DE69209121D1 (de) Verwendung von Nitromethan, Nitroethan und 1-Nitropropan zur Verhinderung des Abbaus der in der Herstellung von geschäumten Polyurethanen und Polyisocyanuraten als Treibmittel benutzten Fluorchlorkohlenwasserstoffe
ES8605291A1 (es) Procedimiento mejorado para la fabricacion de una espuma de poliuretano de baja densidad
DK0522917T3 (da) Bløde phenol-formaldehydharpikser og anvendelse deraf til bløde skumprodukter
RO95393A2 (ro) Compozitie porogena pentru inlocuitori de piele si procedeu de realizare