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公开(公告)号：DE59811932D1
公开(公告)日：2004-10-21
申请号：DE59811932
申请日：1998-03-02
Applicant: BASF AG
Inventor： KNORR DR , ROTERMUND DR , BAUM EVA , SEIFERT DR , WIEGMANN WERNER
Abstract: The production of rigid polyurethane (PUR) foam with a low bulk density (I) comprises reacting (a) polyisocyanates and/or modified polyisocyanates with (b) high-mol. wt. compound(s) with at least two reactive hydrogens and optionally (c) low-mol. wt. chain-extenders and/or crosslinkers in presence of (d) blowing agents, (e) catalysts and optionally (f) other additives etc. Component (d) consists of a mixture of (d-1) cyclopentane, (d-2) at least one 3-4C alkane and/or alkene which forms a homogeneous mixture with cyclopentane and (d-3) the carbon dioxide from the reaction of water and isocyanate. Component (b) comprises aromatic nitrogen-containing polyethers.
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公开(公告)号：ES2200939T3
公开(公告)日：2004-03-16
申请号：ES00964264
申请日：2000-10-02
Applicant: BASF AG
Inventor： BAUER STEPHAN , GROSCH GEORG HEINRICH , TISCHER GERLINDE , HARRE KATHRIN , BAUM EVA , OSTROWSKI THOMAS
Abstract: Polyester-polyether block copolymers can be prepared by catalytic addition of alkylene oxides onto H-functional initiator substances, using polyester alcohols as H-functional initiator substances and multimetal cyanide compounds as catalysts.
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公开(公告)号：PL353213A1
公开(公告)日：2003-11-03
申请号：PL35321300
申请日：2000-08-23
Applicant: BASF AG
Inventor： HARRE KATHRIN , LORENZ REINHARD , GROSCH GEORG HEINRICH , ERBES JORG , JUNGE DIETER , BAUER STEPHAN , BAUM EVA , OSTROWSKI THOMAS
Abstract: The invention relates to a method for producing polyether alcohols by catalytically attaching ethylene oxide and propylene oxide to H-functional starting substances. Said method is characterized in that at least one multimetal cyanide compound is used as a catalyst, and a block comprised of an alkylene oxide having at least three carbon atoms in the molecule is attached to the chain end.
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公开(公告)号：AT242284T
公开(公告)日：2003-06-15
申请号：AT00964264
申请日：2000-10-02
Applicant: BASF AG
Inventor： BAUER STEPHAN , GROSCH GEORG HEINRICH , TISCHER GERLINDE , HARRE KATHRIN , BAUM EVA , OSTROWSKI THOMAS , LORENZ REINHARD , PRETZSCH REGINA , PCOLINSKI MICHAEL , DINSCH STEFAN , ROTERMUND INGE
Abstract: Polyester-polyether block copolymers can be prepared by catalytic addition of alkylene oxides onto H-functional initiator substances, using polyester alcohols as H-functional initiator substances and multimetal cyanide compounds as catalysts.
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公开(公告)号：DE10156117A1
公开(公告)日：2003-05-28
申请号：DE10156117
申请日：2001-11-15
Applicant: BASF AG
Inventor： BOHRES EDWARD , MUELLER ULRICH , RUPPEL RAIMUND , BAUM EVA
IPC: B01J27/26 , C08G18/48 , C08G65/26 , C07C43/13 , C07C41/03 , C07F19/00 , B01J31/12 , B01J31/22 , C08G65/12 , C01C3/08
Abstract: The invention relates to a method for producing polyether alcohols by adding alkylene oxides to H-functional starting substances by means of multi-metal cyanide catalysts. The inventive method is characterized in that the multi-metal cyanide catalysts are microporous and have a specific surface of greater than 100 m /g defined by nitrogen adsorption at 77K.
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Patent Agency Ranking
公开(公告)号：DE10141122A1
公开(公告)日：2003-03-13
申请号：DE10141122
申请日：2001-08-22
Applicant: BASF AG
Inventor： BAUM EVA , GROSCH GEORG HEINRICH , BECHTEL SIEGFRIED , RUPPEL RAIMUND , HARRE KATHRIN , BOHRES EDWARD
Abstract: The invention relates to a method for increasing the catalytic activity of multi-metal cyanide compounds for use as catalysts in the addition of alkyl oxides to H-function starting substances. Said method is characterised in that the multi-metal cyanide compounds are subjected to a deagglomeration before their mixing with the H-function starting substances.
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公开(公告)号：DE50000761D1
公开(公告)日：2002-12-19
申请号：DE50000761
申请日：2000-04-11
Applicant: BASF AG
Inventor： LORENZ REINHARD , BAUER STEPHAN , JUNGE DIETER , BAUM EVA , HARRE KATHRIN , ERBES JOERG , OSTROWSKI THOMAS , GROSCH HEINRICH
Abstract: In a process for producing polyurethanes by reacting at least one polyisocyanate with at least one compound containing at least two hydrogen atoms which are reactive toward isocyanate groups, the compound having at least two active hydrogen atoms which is used is at least one polyether alcohol prepared by addition of alkylene oxides onto H-functional initiator substances by means of multimetal cyanide catalysis and the reaction is carried out in the presence of at least one metal salt.
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公开(公告)号：BR0108777A
公开(公告)日：2002-11-26
申请号：BR0108777
申请日：2001-02-20
Applicant: BASF AG
Inventor： GROSCH GEORGE HEINRICH , FRANKE DIRK , MUNZINGER MANFRED , HARRE KATHRIN , BAUM EVA , SSER MICHAEL ST
Abstract: A process for preparing polyether polyols includes a precipitation step, a recrystallization step, and a reaction step. In the precipitation step, a multimetal cyanide compound is precipitated by reaction of a metal salt with a cyanometalate compound. In the recrystallization step, the multimetal cyanide compound precipitated above is recrystallized by adding further metal salt and/or further cyanometalate compound. The recrystallization forms a multimetal cyanide catalyst compound. In the reaction step, an initiator and one or more alkylene oxide are reacted in the presence of the multimetal cyanide catalyst compound.
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公开(公告)号：CZ20021307A3
公开(公告)日：2002-11-13
申请号：CZ20021307
申请日：2000-10-02
Applicant: BASF AG
Inventor： BAUER STEPHAN DR , GROSCH GEORG HEINRICH DR , TISCHER GERLINDE , HARRE KATHRIN DR , BAUM EVA , OSTROWSKI THOMAS DR , LORENZ REINHARD PROF DR , PRETZSCH REGINA , PCOLINSKI MICHAEL , DINSCH STEFAN , ROTERMUND INGE
Abstract: Polyester-polyether block copolymers can be prepared by catalytic addition of alkylene oxides onto H-functional initiator substances, using polyester alcohols as H-functional initiator substances and multimetal cyanide compounds as catalysts.
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公开(公告)号：DE19949092A1
公开(公告)日：2001-04-19
申请号：DE19949092
申请日：1999-10-12
Applicant: BASF AG
Inventor： BAUM EVA , GROSCH GEORG HEINRICH , HARRE KATHRIN , WINKLER JUERGEN , OSTROWSKI THOMAS , HOEPPNER GERD , PAREDIS ELS
Abstract: The invention relates to a method for producing polyether alcohols by the catalytic reaction of H functional compounds with alkylene oxides, whereby at least one multi-metal cyanide compound is used as the catalyst. The method is characterised in that the total content of alkaline and acidic impurities contained in the starting material and the alkylene oxides, which reduce the activity of the catalyst, is less than 100 ppm.
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