| 摘要 |
The invention relates to a catalyst for producing polyetherols by ring-opening polymerisation of alkylene oxides and is characterised in that one or more compounds of type (I) M'aM''b (OH)c Od * Ae * Lf are applied to or introduced into solid inert supports or moulded into shapes, M' being at least one metal ion selected from the groups IA, IIA, Ni or Zn and mixtures thereof, M'' being at least one metal ion selected from the groups IIIA,IVA, IB to VIIIB, As, Sb and Bi, and mixtures thereof, A being at least one monovalent or multivalent inorganic or organic anion and L being an inorganic or organic ligand, a being a rational number, b, c, d, e and f being rational numbers greater than or equal to zero, although c and d may not both be zero at the same time, and a, b, c, d, e and f being selected with the aim of guaranteeing the electroneutrality of the compound. |
