公开(公告)号：PT1753802E

公开(公告)日：2008-02-28

申请号：PT05744275

申请日：2005-04-21

Applicant: BASF SE

Inventor： BAUM EVA ,  OSTROWSKI THOMAS ,  RUPPEL RAIMUND ,  HOEPPNER GERD ,  BERGMANN SASCHA ,  VANDEWALLE KOEN

IPC: C08G65/26 ,  C08G18/48

公开(公告)号：ES2220739T5

公开(公告)日：2011-07-18

申请号：ES01915290

申请日：2001-02-22

Applicant: BASF SE

Inventor： OSTROWSKI THOMAS ,  HARRE KATHRIN ,  GROSCH GEORG ,  HOEPPNER GERD ,  DE VOCHT PETER ,  LEYS DIRK ,  WINKLER JUERGEN ,  BAUER STEPHAN

IPC: C08G65/26 ,  C08G65/28

Abstract: Procedimiento para la obtención de polieterpolioles mediante reacción de dioles o polioles con óxido de etileno, óxido de propileno, óxido de butileno, o mezclas de los mismos, en presencia de un catalizador de complejo de cianuro multimetálico suspendido en un reactor de caldera de agitación, conduciéndose la mezcla de reacción en circuito por medio de una bomba a través de un cambiador de calor situado exteriormente.

公开(公告)号：DE602005004539T2

公开(公告)日：2008-04-30

申请号：DE602005004539

申请日：2005-04-21

Applicant: BASF SE

Inventor： OSTROWSKI THOMAS ,  RUPPEL RAIMUND ,  HOEPPNER GERD ,  BERGMANN SASCHA ,  VANDEWALLE KOEN ,  BAUM EVA

IPC: C08G65/26 ,  C08G18/48

Abstract: Process for preparing polyether polyols having an end block of ethylene oxide by addition of alkylene oxides onto H-functional starter substances, in which A) a polyether polyol precursor is prepared by means of double metal cyanide (DMC) catalysis in a semicontinuous mode of operation in which previously prepared polyether polyol together with the DMC catalyst are placed in a reactor and H-functional starter substance and propylene oxide are added continuously, B) the polyether polyol precursor from stage A) is reacted with propylene oxide or an ethylene oxide/propylene oxide mixture in the presence of the DMC catalyst in a continuously operating reactor to give a polyether polyol intermediate, C) the intermediate from stage B) is mixed with an alkali metal hydroxide as catalyst and D) reacted with ethylene oxide in a continuously operating reactor to give the final product, E) the catalyst is separated off from the final product obtained in stage D).