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    PRODUCTION OF RIGID FOAMS BASED ON ISOCYANATE
    22.
    发明专利
    PRODUCTION OF RIGID FOAMS BASED ON ISOCYANATE 未知

    公开(公告)号：CA2260343A1

    公开(公告)日：1999-08-13

    申请号：CA2260343

    申请日：1999-02-11

    Applicant: BASF AG

    Inventor： REICHELT MICHAEL ,  JUNG LUDWIG ,  ROTERMUND UDO ,  BAUM EVA

    IPC: C08G18/66 ,  C08J9/12 ,  C08J9/30

    Abstract: Rigid foams based on isocyanate are produced by reacting a) organic and/or modified organic polyisocyanates with b) at least one relatively high molecular weight compound containing at least two reactive hydrogen atoms and, if desired, c) low molecular weight chain extenders and/or crosslinkers in the presence of d) carbon dioxide as sole or additional blowing agent, e) foam stabilizers, f) catalysts and, if desired, g) further auxiliaries and/or additives, wherein at least one organosilicon compound having a relative ethylene oxide/propylene oxide weight ratio of over 70/30 is used as foam stabilizer, with the total Si content being greater than or equal to 5% by weight, based on the weight of the foam stabilizer or stabilizers used. The isocyanate-based rigid foams produced in this way can be used as insulation material.

    METODO PARA PRODUCIR ALCOHOLES POLIETERICOS.
    24.
    发明专利
    METODO PARA PRODUCIR ALCOHOLES POLIETERICOS. 未知

    公开(公告)号：ES2288699T3

    公开(公告)日：2008-01-16

    申请号：ES04797695

    申请日：2004-11-06

    Applicant: BASF AG

    Inventor： OSTROWSKI THOMAS ,  RUPPEL RAIMUND ,  BAUM EVA ,  HARRE KATHRIN

    IPC: C08G65/00 ,  C07C43/11 ,  C08G65/10 ,  C08G65/12 ,  C08G65/26

    Abstract: Un proceso para la preparación continua de alcoholes polietéricos mediante reacción de óxidos de alquileno con sustancias iniciadoras H-funcionales en presencia de catalizadores DMC, caracterizado porque comprende al comienzo del proceso a) colocar primero material de carga inicial y cataliador DMC en un reactor, b) dosificar óxido de alquileno de modo que la velocidad de dosificación que se mantiene para la operación continua del reactor se logre en un tiempo desde 100 hasta 3000 segundos, c) dosificar sustancia iniciadora durante o después del paso b) de modo que la velocidad de dosificación que se mantiene para la operación continua se logra en un tiempo de 5 hasta 500 segundos, d) después de que se haya alcanzado el nivel de llenado deseado en el reactor para la operación continua del reactor, retirar el producto continuamente del reactor mientras que al mismo tiempo se dosifica sustancia iniciadora y óxidos de alquileno en tal cantidad que el nivel de llenado en el reactor se mantieneconstante y dosificar catalizador DMC para que en el reactor se mantenga la concentración de catalizador necesaria para la operación continua del reactor.

    25.
    发明专利
    未知

    公开(公告)号：DK1537159T3

    公开(公告)日：2007-12-03

    申请号：DK03790810

    申请日：2003-07-24

    Applicant: BASF AG

    Inventor： BAUER STEPHAN ,  RUPPEL RAIMUND ,  BAUM EVA ,  WINKLER JUERGEN ,  BOHRES EDWARD

    IPC: C08G18/48 ,  C08G18/08 ,  C08G65/26

    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.

    28.
    发明专利
    未知

    公开(公告)号：DE502004004261D1

    公开(公告)日：2007-08-16

    申请号：DE502004004261

    申请日：2004-11-06

    Applicant: BASF AG

    Inventor： OSTROWSKI THOMAS ,  RUPPEL RAIMUND ,  BAUM EVA ,  HARRE KATHRIN

    IPC: C08G65/00 ,  C07C43/11 ,  C08G65/10 ,  C08G65/12 ,  C08G65/26

    Abstract: The invention relates to a process for the continuous preparation of polyether alcohols by reaction of alkylene oxides with H-functional starter substances in the presence of DMC catalysts, which comprises, at the beginning of the process a) firstly placing initial charge material and DMC catalyst in a reactor, b) metering in alkylene oxide so that the metering rate which is maintained for continuous operation of the reactor is reached in a time of from 100 to 3000 seconds, c) metering in starter substance during or after step b) so that the metering rate which is maintained for continuous operation of the reactor is reached in a time of from 5 to 500 seconds, d) after the fill level in the reactor which is desired for continuous operation of the reactor has been reached, taking product off continuously from the reactor while at the same time metering in starter substance and alkylene oxides in such an amount that the fill level in the reactor remains constant and metering in DMC catalyst so that the catalyst concentration necessary for continuous operation of the reactor is maintained in the reactor.

    29.
    发明专利
    未知

    公开(公告)号：DE102005020347A1

    公开(公告)日：2006-11-09

    申请号：DE102005020347

    申请日：2005-05-02

    Applicant: BASF AG

    Inventor： BOHRES EDWARD ,  STOESER MICHAEL ,  VOELKEL LUDWIG ,  RUPPEL RAIMUND ,  BAUM EVA ,  WAGNER NORBERT ,  SUNDERMEYER JOERG ,  GARRELTS UDO ,  ZIRNSTEIN MICHAEL

    IPC: B01J27/26 ,  B01J37/03

    Abstract: Process for preparing double metal cyanide catalysts of the general formula (I) M2a[M1(CN)rXt]b (I) where M2 is preferably Co(III) or Fe(III), and M1 is preferably Zn(II), X is a group other than cyanide which forms a coordinate bond to M1 and is selected from the group consisting of carbonyl, cyanate, isocyanate, nitrile, thiocyanate and nitrosyl, a, b, r, t are integers which are selected so that the compound is electrically neutral, by reacting a) a cyanometallic acid of the general formula (II) Hw[M1(CN)r(X)t] where M1 and X are as defined above, r and t are as defined above and w is selected so that the compound is electrically neutral, with b) a readily protolyzable metal compound (IIIa) M2Rw and/or (IIIb) M2RuYv, where M2 is as defined above, the groups R are identical or different and are each the anion of a very weak protic acid having a pKa of >=20, and Y is the anion of an inorganic mineral acid or a moderately strong to strong organic acid having a pKa of from -10 to +10, w corresponds to the valence of M2, u+v corresponds to the valence of M2, with u and v each being at least 1, with the reaction being carried out in a nonaqueous, aprotic solvent.

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