| abstract |
The present invention is directed to an activated starter mixture whichncan be used to prepare polyoxyalkylene polyols. The present invention isnalso directed to a process for preparing an activated starter mixture,nparticularly, to a process for preparing an activated starter mixture which isncomposed of a low molecular weight starter compound. The presentninvention is also directed to a batch or semi-batch process for thenpolyaddition of an alkylene oxide on to an activated starter mixture,nparticularly, on to an activated starter mixture which is composed of a lownmolecular weight starter compound. n The present invention provides an activated starter mixture,nparticularly, an activated starter mixture which is composed of a lownmolecular weight starter compound, which rapidly initiates polymerization.nThe present invention can eliminate the need to synthesize costly highnmolecular weight starter compounds by KOH catalysis in a separate,ndedicated reactor. |