申请人:ARCO Chemical Technology, L.P.
公开号:EP0385632A2
公开(公告)日:1990-09-05
A process for the preparation of polyethers is disclosed in which an oxetane monomer, or a mixture of an oxetane monomer and an oxolane monomer, and a carboxylic acid anhydride are contacted with a bleaching earth catalyst. The process yields ester-terminated polyethers which may be saponified to obtain hydroxy-terminated polyether polyols.
本发明公开了一种制备聚醚的工艺,在该工艺中,氧杂环丁烷单体或氧杂环丁烷单体和氧杂环戊烷单体的混合物以及羧酸酐与漂白土催化剂接触。该工艺可得到酯封端聚醚,将其皂化可得到羟基封端聚醚多元醇。