申请人:E. I. Du Pont de Nemours and Company
公开号:US05155283A1
公开(公告)日:1992-10-13
A process for forming polytetramethylene ether glycol having a number average molecular weight of 600 to 2,200 by contacting tetrahydrofuran with 5 to 50 wt %, based on tetrahydrofuran, trifluoromethane sulfonic acid monohydrate and water at 20.degree. to 75.degree. C. is disclosed.
本发明揭示了一种通过在20°C至75°C下将四氢呋喃与5至50重量%(以四氢呋喃为基础)的一水合三氟甲烷磺酸和水接触来形成分子量为600至2,200的聚四亚甲基醚二醇的方法。