| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for efficiently producing higher polyethylene polyamine.SOLUTION: In the method, ethylene dichloride, and two or more kind polyethylene polyamine selected from ethylenediamine, diethylenetriamine, piperazine and N-amino-ethyl piperazine are heated to 100°C or more to react.SELECTED DRAWING: Figure 1 |
