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    1.
    发明专利
    未知

    公开(公告)号：DE102005034001A1

    公开(公告)日：2007-01-25

    申请号：DE102005034001

    申请日：2005-07-18

    Applicant: BASF AG

    Inventor： HERWIG STEPHAN ,  OSTROWSKI THOMAS ,  MECKELNBURG DIRK ,  LOEFFLER ACHIM ,  JOVANOVIC RENATA ,  WEINLE WERNER

    IPC: C08G65/26

    Abstract: The invention provides a process for continuously preparing polyether alcohols using DMC catalysts, which comprises, in a first step, in a continuous reactor, adding alkylene oxides onto H-functional starter substances and transferring the output of this reactor to a second step in a reactor which is divided by closed trays into mutually separate sections, known as compartments, which are connected to one another by external pipelines, in which the output of the reactor from the first step of the reaction passes through the compartments in succession.

    2.
    发明专利
    未知

    公开(公告)号：DE102004031836A1

    公开(公告)日：2006-01-19

    申请号：DE102004031836

    申请日：2004-06-30

    Applicant: BASF AG

    Inventor： OSTROWSKI THOMAS ,  BAUER STEPHAN ,  LOEFFLER ACHIM ,  WINKLER JUERGEN

    IPC: C08G18/48 ,  C08G65/00 ,  C08G65/08

    Abstract: The invention provides a process for continuously preparing polyether alcohols by adding alkylene oxides to H-functional starter substances using a DMC catalyst, comprising the steps of a) preparing a precursor by continuously metering an H-functional starter substance, an alkylene oxide or a mixture of at least two alkylene oxides and the required amount of DMC catalyst into a continuous reactor, b) continuously withdrawing the precursor from step a) from the reactor, c) continuously metering the product from step a), an alkylene oxide different from that in step a) or a mixture of at least two alkylene oxides different from that in step a) and, if appropriate, the required amount of DMC catalyst into a further continuous reactor.

    3.
    发明专利
    未知

    公开(公告)号：NO313639B1

    公开(公告)日：2002-11-04

    申请号：NO985295

    申请日：1998-11-13

    Applicant: BASF AG

    Inventor： HAHN KLAUS ,  STEINBRECHER HORST ,  NAEGELE DIETER ,  LOEFFLER ACHIM ,  GUERTLER MANFRED ,  SCHMITT HAGEN ,  REICHERT JUERGEN

    IPC: B65D81/02 ,  C08J9/224 ,  E04D13/16

    Abstract: PCT No. PCT/EP97/02362 Sec. 371 Date Nov. 12, 1998 Sec. 102(e) Date Nov. 12, 1998 PCT Filed May 7, 1997 PCT Pub. No. WO97/43334 PCT Pub. Date Nov. 20, 1997The present invention relates to expandable polystyrene beads containing blowing agent which are coated with from 0.01 to 0.5% by weight of a hydrophobicizing agent which melts above 25 DEG C. and has a mean particle size of less than 100 mu m. The beads can be converted into foam moldings having reduced water absorption capacity.

    4.
    发明专利
    未知

    公开(公告)号：DE59706390D1

    公开(公告)日：2002-03-21

    申请号：DE59706390

    申请日：1997-05-07

    Applicant: BASF AG

    Inventor： HAHN KLAUS ,  STEINBRECHER HORST ,  NAEGELE DIETER ,  LOEFFLER ACHIM ,  GUERTLER MANFRED ,  SCHMITT HAGEN ,  REICHERT JUERGEN

    IPC: B65D81/02 ,  C08J9/224 ,  E04D13/16

    Abstract: PCT No. PCT/EP97/02362 Sec. 371 Date Nov. 12, 1998 Sec. 102(e) Date Nov. 12, 1998 PCT Filed May 7, 1997 PCT Pub. No. WO97/43334 PCT Pub. Date Nov. 20, 1997The present invention relates to expandable polystyrene beads containing blowing agent which are coated with from 0.01 to 0.5% by weight of a hydrophobicizing agent which melts above 25 DEG C. and has a mean particle size of less than 100 mu m. The beads can be converted into foam moldings having reduced water absorption capacity.

    5.
    发明专利
    未知

    公开(公告)号：DE502005002059D1

    公开(公告)日：2008-01-03

    申请号：DE502005002059

    申请日：2005-06-22

    Applicant: BASF AG

    Inventor： OSTROWSKI THOMAS ,  BAUER STEPHAN ,  LOEFFLER ACHIM ,  WINKLER JUERGEN

    IPC: C08G65/00

    Abstract: The invention provides a process for continuously preparing polyether alcohols by adding alkylene oxides to H-functional starter substances using a DMC catalyst, comprising the steps of a) preparing a precursor by continuously metering an H-functional starter substance, an alkylene oxide or a mixture of at least two alkylene oxides and the required amount of DMC catalyst into a continuous reactor, b) continuously withdrawing the precursor from step a) from the reactor, c) continuously metering the product from step a), an alkylene oxide different from that in step a) or a mixture of at least two alkylene oxides different from that in step a) and, if appropriate, the required amount of DMC catalyst into a further continuous reactor.

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