公开(公告)号：US20090005533A1

公开(公告)日：2009-01-01

申请号：US11910936

申请日：2006-04-05

申请人： Stefan Dinsch ,  Jurgen Winkler ,  Gerd Hoppner ,  Holger Seifert

发明人： Stefan Dinsch ,  Jurgen Winkler ,  Gerd Hoppner ,  Holger Seifert

IPC分类号： C08G65/26

CPC分类号： C08G18/4883 ,  C08G65/2606 ,  C08G65/2648 ,  C08G65/2651 ,  C08G65/2696

摘要： The invention relates to a process for preparing polyether alcohols by catalytic addition of alkylene oxides onto a starter substance mixture comprising water-soluble H-functional starter substances which are solid at room temperature, alcohols which are liquid at the reaction temperature and water using alkali metal hydroxides and/or alkaline earth metal hydroxides as catalysts, wherein the amount of water is from 1.0 to 6.0% by weight, based on the weight of the starter substance mixture, and the starter substance mixture comprises no amine constituents.

摘要翻译： 本发明涉及通过将环氧烷催化加成到起始物质混合物上制备聚醚醇的方法，该起始物质混合物包括在室温下为固体的水溶性H官能起始物质，在反应温度下为液体的醇和使用碱金属的水 氢氧化物和/或碱土金属氢氧化物作为催化剂，其中水的量为起始物质混合物重量的1.0至6.0重量％，起始物质混合物不包含胺组分。

公开(公告)号：US20050240063A1

公开(公告)日：2005-10-27

申请号：US10828967

申请日：2004-04-21

申请人： Thomas Ostrowski ,  Raimund Ruppel ,  Gerd Hoppner ,  Sascha Bergmann ,  Koenraad Vandewalle ,  Eva Baum

发明人： Thomas Ostrowski ,  Raimund Ruppel ,  Gerd Hoppner ,  Sascha Bergmann ,  Koenraad Vandewalle ,  Eva Baum

IPC分类号： C08G18/48 ,  C08G65/26 ,  C07C43/18

CPC分类号： C08G65/2696 ,  C08G18/4841 ,  C08G18/4866 ,  C08G65/2663

摘要： 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).

摘要翻译： 制备具有环氧乙烷端嵌段的聚醚多元醇的方法，其通过在H-功能起始物质上加入环氧烷烃，其中A）聚醚多元醇前体是通过半连续运行模式中的双金属氰化物（DMC）催化制备的 其中将预先制备的聚醚多元醇与DMC催化剂一起放入反应器中，并连续加入H官能引发剂物质和环氧丙烷，B）将来自阶段A）的聚醚多元醇前体与环氧丙烷或环氧乙烷/丙烯 氧化物混合物在DMC催化剂存在下在连续操作的反应器中得到聚醚多元醇中间体，C）将来自阶段B）的中间体与作为催化剂的碱金属氢氧化物混合，并且D）在连续操作的反应器中与环氧乙烷反应 得到最终产物，E）将催化剂从阶段D）中得到的最终产物中分离出来。