Low to add the boron 1 per equivalent 0.75 equivalent - 7 equivalent Acids to the starter chemical compound which

摘要

PROBLEM TO BE SOLVED: To provide a process for the production of a polyether polyol having a low unsaturation degree from an arbitrary alcohol source.;SOLUTION: The process for the production of the polyether polyol comprises adding to a boron-containing starter compound from about 0.75 equivalent to about 7 equivalents of an acid per equivalent of boron, and polyoxyalkylating the boron-containing starter compound with an alkylene oxide in the presence of a double metal cyanide (DMC) catalyst.;COPYRIGHT: (C)2007,JPO&INPIT