11.
    发明专利
    未知

    公开(公告)号:AT284427T

    公开(公告)日:2004-12-15

    申请号:AT00964106

    申请日:2000-09-05

    Applicant: BASF AG

    Abstract: The invention relates to polyether alcohols that are produced by a ring-opening polymerization of ethylene oxide and at least one alkylene oxide with at least 3 carbon atoms in the molecule to H-functional starting substances. The inventive method is further characterized in that ethylene oxide or a mixture of ethylene oxide and at least one alkylene oxide with at least 3 carbon atoms in the molecule with an ethylene oxide content of at least 98 %, based on the mixture, is added to the starting substance in an amount of maximally 40 % by weight, based on the weight of the polyether alcohol. At least one alkylene oxide with at least 3 carbon atoms in the molecule or a mixture of ethylene oxide and at least one alkylene oxide with at least 3 carbon atoms in the molecule and an ethylene oxide content of maximally 20 % by weight, based on the mixture, is added.

    PROCEDIMIENTO PARA LA OBTENCION DE POLIETERPOLIOLES.

    公开(公告)号:ES2219309T3

    公开(公告)日:2004-12-01

    申请号:ES00906216

    申请日:2000-01-21

    Applicant: BASF AG

    Abstract: Procedimiento para la obtención de poliéterpolioles mediante reacción catalítica de substancias iniciadoras H-funcionales con óxidos de alquileno inferiores escogidos del grupo, que contiene óxido de etileno, óxido de propileno, óxido de butileno, viniloxirano y mezclas, constituidas por al menos dos de estos compuestos, caracterizado porque se emplean como catalizadores compuestos de cianuro multimetálicos y como substancias iniciadoras H-funcionales para la polimerización de óxidos de alquileno mezclas, constituidas por butanodiol-1, 4 y otros iniciadores H- funcionales, mezclas, constituidas por -hidroxi-- hidroxipoli(oxi-1, 4-butanodiilo) y otros iniciadores H- funcionales, pentanodiol-1, 5 y otros iniciadores H- funcionales, decanodiol-1, 10 y otros iniciadores H- funcionales o mezclas, constituidas por butanodiol-1, 4, - hidroxi--hidroxipoli(oxi-1, 4-butanodiilo), pentanodiol- 1, 5 y/o decanodiol-1, 10 y otros iniciadores H- funcionales.

    Micro-reactor, for small scale chemical synthesis, has lower plate with reactor chambers having passages via closure to parallel top plate

    公开(公告)号:DE10141598A1

    公开(公告)日:2003-03-06

    申请号:DE10141598

    申请日:2001-08-24

    Applicant: BASF AG

    Abstract: A micro-reactor for chemical reactions has two parallel plates (1, 2) fixed to each other. One plate (1) has a number of reaction chambers (3) with closures and seals, feed and discharge tubes (12, 13, 14). Lower plate (1) chamber (3) apertures (6) are aligned with closures (7) to the top plate (2). Each closure has one end which may be inserted separately with a seal (11) in the other plate (2). The seal is an O-ring seal which engages in a circular groove (10) in the closure free end. The feed and product discharge tubes and the process monitoring systems are axial passages within the closures. The plate (1) having the reactor chambers is secured within a precisely-fitting U-shaped frame (4). The upper plate (2) with closures is attached by screws to the frame.

    17.
    发明专利
    未知

    公开(公告)号:DE19903274A1

    公开(公告)日:2000-08-03

    申请号:DE19903274

    申请日:1999-01-28

    Applicant: BASF AG

    Abstract: The invention relates to a method for the preparation of polyether polyols by catalytic reaction of H-functional initiator substances with lower alkylene oxides. Said method is characterized in that multi-metal cyanide compounds are used as catalysts and butanediol-1,4, alpha -hydroxy- omega -hydroxypoly(oxy-1,4-butanediyl), pentanediol-1,5, decanediol-1,10 or mixtures of at least two of the above compounds are used as H-functional initiator substances.

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