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公开(公告)号:DE102004013408A1
公开(公告)日:2005-10-06
申请号:DE102004013408
申请日:2004-03-18
Applicant: BASF AG
Inventor: RUPPEL RAIMUND , BAUM EVA , OSTROWSKI THOMAS , HARRE KATHRIN , BLEUEL ELKE
Abstract: The invention relates to polyether alcohols, to a process for preparing polyether alcohols by reacting alkylene oxides in the presence of a double metal cyanide (DMC) catalyst with at least one saturated OH component which may, if appropriate, have previously been reacted with an alkylene oxide, wherein an antioxidant is added before or during the reaction, and also to the further processing of the polyether alcohols to form polyurethanes.
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公开(公告)号:ES2227734T3
公开(公告)日:2005-04-01
申请号:ES98103629
申请日:1998-03-02
Applicant: BASF AG
Inventor: KNORR GOTTFRIED DR , ROTERMUND UDO DR , BAUM EVA , SEIFERT HOLGER DR , WIEGMANN WERNER
Abstract: ES OBJETO DE LA PRESENTE INVENCION UN PROCEDIMIENTO PARA LA PRODUCCION DE ESPUMAS RIGIDAS DE POLIURETANO CON MENOR DENSIDAD APARENTE MEDIANTE LA REACCION DE A) POLIISOCIANATOS ORGANICOS Y/O MODIFICADOS CON B) AL MENOS UN COMPUESTO DE ELEVADO PESO MOLECULAR CON AL MENOS DOS ATOMOS DE HIDROGENO REACTIVOS Y OPCIONALMENTE, C) ALARGADORES DE CADENA DE BAJO PESO MOLECULAR Y/O RETICULANTES EN PRESENCIA DE D) POROGENOS, E) CATALIZADORES, ASI COMO OPCIONALMENTE F)) OTROS COADYUVANTES Y/O ADITIVOS, QUE SE CARACTERIZA PORQUE COMO POROGENO SE UTILIZA D) UNA MEZCLA DE CICLOPENTANO, AL MENOS UN COMPUESTO QUE SE PUEDA MEZCLAR DE FORMA HOMOGENEA CON CICLOPENTANO DEL GRUPO DE LOS ALCANOS Y/O ALQUENOS CON 3 O 4 ATOMOS DE CARBONO EN LA MOLECULA Y EL DIOXIDO DE CARBONO ORIGINADO A PARTIR DEL AGUA Y DEL ISOCIANATO Y COMO COMPUESTO DE ELEVADO PESO MOLECULAR POLIETERES AROMATICOS Y CON NITROGENO CON AL MENOS DOS ATOMOS DE HIDROGENO REACTIVOS (B). ASIMISMO ES OBJETO DE LA INVENCION EL USO DE LAS ESPUMAS RIGIDAS ASI PRODUCIDAS COMO MATERIAL AISLANTE.
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公开(公告)号:ES2223826T3
公开(公告)日:2005-03-01
申请号:ES01925342
申请日:2001-02-20
Applicant: BASF AG
Inventor: GROSCH GEORG HEINRICH , FRANKE DIRK , MUNZINGER MANFRED , HARRE KATHRIN , BAUM EVA , STOSSER MICHAEL
Abstract: Procedimiento para la obtención de compuestos de cianuro multimetálicos mediante reacción de una sal metálica con un compuesto de cianometalato, comprendiendo las etapas (a) precipitación del compuesto de cianuro multimetálico por reacción de una sal metálica con un compuesto de cianometalato, (b) recristalización del compuesto de cianuro multimetálico precipitado en la etapa a), en que se b(i) agrega al producto de reacción de la etapa a) más sal metálica, y/o b(ii) se altera la temperatura y/o el valor de pH del producto de reacción de la etapa a).
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公开(公告)号:PT1259561E
公开(公告)日:2004-12-31
申请号:PT01925342
申请日:2001-02-20
Applicant: BASF AG
Inventor: MUNZINGER MANFRED , HARRE KATHRIN , BAUM EVA , STOSSER MICHAEL , HEINRICH GROSCH GEORG , DIRK FRANKE
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:DE10240186A1
公开(公告)日:2004-03-11
申请号:DE10240186
申请日:2002-08-28
Applicant: BASF AG
Inventor: BAUER STEPHAN , RUPPEL RAIMUND , BAUM EVA , WINKLER JUERGEN , BOHRES EDWARD
Abstract: The present invention provides a process for producing low-emission flexible polyurethane foams having a reduced odor and reduced fogging by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups, c) blowing agents wherein polyether alcohols which have been prepared by addition of alkylene oxides onto compounds derived from renewable raw materials using DMC catalysts are used as compounds b) having at least two hydrogen atoms which are reactive toward isocyanate groups.
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公开(公告)号:DE10226415A1
公开(公告)日:2003-12-24
申请号:DE10226415
申请日:2002-06-13
Applicant: BASF AG
Inventor: RUPPEL RAIMUND , BAUM EVA , WINKLER JUERGEN , BOHRES EDWARD
Abstract: The invention relates to a method for producing polyether alcohols, comprising the following steps: a) reacting a low-molecular alcohol with alkylene oxide in the presence of a basic catalyst in order to form an alkylene oxide addition product having a molecular weight ranging from 200 to 900 g/mol; b) separating the basic catalyst from the product obtained in step a), and; c) reacting the product obtained in step b) with another alkylene oxide in order to produce the desired final product while using at least one DMC catalyst. The inventive method is characterized in that sodium hydroxide is used as the basic catalyst in step a).
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公开(公告)号:DE50002490D1
公开(公告)日:2003-07-10
申请号:DE50002490
申请日:2000-10-02
Applicant: BASF AG
Inventor: BAUER STEPHAN , GROSCH 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:MXPA02001957A
公开(公告)日:2002-08-20
申请号:MXPA02001957
申请日:2000-08-23
Applicant: BASF AG
Inventor: BAUM EVA
Abstract: En un proceso para preparar alcoholes polieter por adicion catalitica de oxido de etileno y oxido de propileno sobre substancias iniciadoras H-funcionales, al menos un compuesto de cianuro multimetalico se usa como catalizador y un bloque de un oxido de alquileno que tiene al menos tres atomos de carbono en la molecula se agrega en el extremo de la cadena.
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公开(公告)号:BR0013530A
公开(公告)日:2002-04-30
申请号:BR0013530
申请日:2000-08-23
Applicant: BASF AG
Inventor: HARRE KATHRIN , LORENZ REINHARD , GROSCH GEORG HEINRICH , ERBES J RG , 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:CA2401602A1
公开(公告)日:2001-09-07
申请号:CA2401602
申请日:2001-02-20
Applicant: BASF AG
Inventor: STOSSER MICHAEL , FRANKE DIRK , GROSCH GEORG HEINRICH , HARRE KATHRIN , BAUM EVA , MUNZINGER MANFRED
Abstract: The invention relates to a method for producing multimetal cyanide compounds by converting a metallic salt with a cyanometallate compound. The inventive method comprises the steps: a) precipitating the multimetal cyanide compound by converting a metallic salt with a cyanometallate compound and b) recrystallising the multimetal cyanide compound precipitated in step a).
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