| 摘要 |
Providing a novel two-metal cyanide catalyst. A two-metal cyanide catalyst (TMC) containing: (a) one or more two-metal cyanide compounds; (b) one or more complex organic ligands; (c) one or more polyether complex forming components; (d) one or more polyester, polycarbonate, polyalkyleneglycolsorbitan ester or ether, glycidyl ether, glycoside, carboxylic acid, multihydric alcohol, cyclodextrin, phosphorus compounds, alpha,beta-unsaturated carboxylic acid esters, or ionic surface active- or boundary surface active compounds. Independent claims are included for: (1) a process for preparation of the catalyst by the steps: (i) reaction in aqueous solution of: (A) metal salts with metal cyanides; (B) organic complex ligands, which are either polyether, polyester, polycarbonate, etc. as in (d) above, or ionic surface active compounds as above; (C) one or more polyether complex forming components; (D) one or more complex forming components selected from (d) above; and (ii) isolation, washing, and drying of the catalyst obtained in step (i); (2) a polyetherpolyol obtained as above; and (3) preparation of polyetherpolyols from alkylene oxides with starter compounds at active hydrogen atoms in the presence of one or more TMC catalysts. |
