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    93.
    发明专利
    未知

    公开(公告)号：DE10210125A1

    公开(公告)日：2003-09-25

    申请号：DE10210125

    申请日：2002-03-08

    Applicant: BASF AG

    Inventor： BAUM EVA ,  RUPPEL RAIMUND ,  TISCHER GERLINDE ,  HARRE KATHRIN ,  BOHRES EDWARD

    IPC: C08G18/48 ,  C08G63/668 ,  C08G65/26 ,  C08G65/28 ,  C08G18/08

    Abstract: The invention relates to a method for producing polyether alcohols with a functionality of more than 2, comprising the following steps: a) a polyester alcohol having a functionality of more than 2, preferably at least 3, is produced by reacting at least one multifunctional alcohol with at least one multifunctional carboxylic acid; b) said polyester alcohol is reacted with alkylene oxides by using at least one DMC catalyst.

    95.
    发明专利
    未知

    公开(公告)号：ES2186649T3

    公开(公告)日：2003-05-16

    申请号：ES00926868

    申请日：2000-04-11

    Applicant: BASF AG

    Inventor： LORENZ REINHARD ,  BAUER STEPHAN ,  JUNGE DIETER ,  BAUM EVA ,  HARRE KATHRIN ,  ERBES JORG

    IPC: C08G18/22 ,  C08G18/48 ,  C08G65/26 ,  C08K3/00 ,  C08G18/24

    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.

    METHOD FOR PRODUCING MULTIMETAL CYANIDE COMPOUNDS
    96.
    发明专利
    METHOD FOR PRODUCING MULTIMETAL CYANIDE COMPOUNDS 未知

    公开(公告)号：HU0300001A2

    公开(公告)日：2003-04-28

    申请号：HU0300001

    申请日：2001-02-20

    Applicant: BASF AG

    Inventor： BAUM EVA ,  FRANKE DIRK ,  GROSCH GEORG HEINRICH ,  HARRE KATHRIN ,  MUNZINGER MANFRED ,  STOESSER MICHAEL

    IPC: B01J27/26 ,  C01C3/08 ,  C08G65/02 ,  C08G65/26

    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.

    METHOD FOR PRODUCING POLYETHERPOLYOLS IN THE PRESENCE OF A MULTIMETAL CYANIDE COMPLEX CATALYST
    97.
    发明专利
    METHOD FOR PRODUCING POLYETHERPOLYOLS IN THE PRESENCE OF A MULTIMETAL CYANIDE COMPLEX CATALYST 未知

    公开(公告)号：HU0204462A2

    公开(公告)日：2003-04-28

    申请号：HU0204462

    申请日：2001-02-16

    Applicant: BASF AG

    Inventor： GROSCH GEORG HEINRICH ,  HARRE KATHRIN ,  OSTROWSKI THOMAS ,  WINKLER JUERGEN

    IPC: B01J19/18 ,  B01J27/26 ,  C08G65/26 ,  C08G65/28

    Abstract: Production of polyether polyols by reaction of diols or polyols with a 2-4C alkylene oxide in the presence of a multi-metal cyanide complex catalyst comprises use of a tall vertical cylindrical reactor with a central stirrer and heat exchange plates arranged in the longitudinal direction of the reactor at an angle, alpha , of 0-70 [deg] in the direction of rotation of the stirrer to the reactor radius. A process for the production of polyether polyols (I) by reaction of diols or polyols with ethylene oxide, propylene oxide and/or butylene oxide in the presence of a multi-metal cyanide complex catalyst (II) comprises carrying out the reaction in a tall vertical cylindrical reactor with a central stirrer and heat exchanger plates, through which a heat exchange medium flows and which are arranged essentially in the longitudinal direction of the reactor at an angle alpha , of 0-70 [deg] in the direction of rotation of the stirrer to the reactor radius.

    98.
    发明专利
    未知

    公开(公告)号：ES2178469T3

    公开(公告)日：2002-12-16

    申请号：ES99944507

    申请日：1999-08-25

    Applicant: BASF AG

    Inventor： GROSCH GEORG HEINRICH ,  LARBIG HARALD ,  LORENZ REINHARD ,  JUNGE DIETER ,  HARRE KATHRIN

    IPC: C08G65/10 ,  B01J23/00 ,  B01J27/232 ,  B01J27/236 ,  B01J27/26 ,  C08G18/48 ,  C08G65/26 ,  C08G65/28

    Abstract: A process for preparing polyetherols by ring-opening polymerization of alkylene oxides onto H-functional initiator molecules, which comprises at least one process step a) in which a compound of the formula (I) M'aM''b(OH)cOd*Ac*Lf (I), applied to a solid inert support or incorporated in the latter or molded to form a shaped body is used as catalyst, and at least one process step b) in which a multimetal cyanide compound of the formula (II) M1a[M2(CN)b(A)c]d.fM1gXn.h(H2O).eL (II) applied to a solid, inert support or incorporated in the latter or molded to form a shaped body or in powder or paste form is used as catalyst.

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