PROCESS FOR PREPARING DOUBLE METAL CYANIDE CATALYZED POLYOLS

摘要

The present invention provides a process for preparing a polyoxyalkylene polyol by polyoxyalkylating a starter compound with a mixture of two different alkylene oxide monomers in which the first alkylene oxide monomer content of the mixture decreases as the content of the second alkylene oxide monomer increases over the course of the polyoxyalkylation, digesting unreacted monomers of the alkylene oxides and capping the polyol.