申请人:——
公开号:US20020183482A1
公开(公告)日:2002-12-05
In a process for preparing polyether alcohols by catalytic addition of at least two alkylene oxides onto H-functional initiator substances, at least one multimetal cyanide compound is used as catalyst and the addition of the alkylene oxides onto the initiator substance includes incorporation of at least one oxyalkylene block during whose formation at least two alkylene oxides are metered in together and the ratio of the alkylene oxides to one another in the mixture is changed during the joint introduction.
在一种通过将至少两种氧化烯催化添加到 H-官能团引发剂物质上制备聚醚醇的工艺中,至少使用一种多金属氰化物作为催化剂,将氧化烯添加到引发剂物质上包括加入至少一种氧亚烷基嵌段,在其形成过程中,至少两种氧化烯一起计量加入,并且在共同引入过程中改变氧化烯在混合物中的比例。