| 摘要 |
PROBLEM TO BE SOLVED: To provide a metal cyanide complex catalyst which has high catalyst activity, can produce a polyetherpolyol at a large polymerization rate even in a small catalyst amount, and can inhibit high mol.wt. side reaction products. SOLUTION: This metal cyanide complex catalyst obtained by reacting a metal halide, a transition metal cyanide, and an organic ligand, has the rate of weight loss≥30 wt.% from 110 to 170°C among total weight losses from 20 to 450°C is by differential thermogravimetric analysis. COPYRIGHT: (C)2003,JPO
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