Method for manufacturing ethers of polyoxylalkylenglykol using alcoxylated oligo- or polyethylenimines as demulsifiers
摘要
<p>Preparation of polyoxyalkylene glycol monoether and/or -diether (Q) comprises reacting an alcoholate with an alkylating agent to obtain polyoxyalkylene glycol ether, and adding water and oligo- or polyethyleneimine (Q1) (which is alkoxylated with 1-100 of 2-4C-alkyleneoxide group or its mixture per free NH group), to the mixture.</p>
