Abstract:
The invention relates to DMC catalysts consisting of at least 10 wt. %, (in relation to the weight of the DMC catalyst), of a crystalline multi-metal cyanide compound, whose X-ray diffractogram exhibits intense reflections at least at the d-values 11.4 Å ± 0.5 Å; 8.9 Å ± 0.5 Å; 6.3 Å ± 0.5 Å; 5.8 Å ± 0.5 Å; 5.5 Å ± 0.5 Å; 4.5 Å ± 0.5 Å; 4.4 Å ± 0.5 Å; 3.9 Å ± 0.4 Å; 3.7 Å ± 0.4 Å; 3.4 Å ± 0.4 Å.
Abstract:
The present invention relates to a process for the alkoxylation of organic compounds comprising the reaction of at least one organic compound with at least onealkoxylating agent in the presence of a catalyst system, wherein a polyetheralcohol is obtained. The catalyst system comprises a metallo organic framework mate-rial comprising pores and at least one metal ion and at least one at least bidentate organic compound, which is coordinately bounded to said metal ion. Furthermore it relates to polyurethanes or polyurethane foams, which are obtainable by using a prepared polyether alcohol as a starting material.
Abstract:
The invention relates to multi-metal cyanide compounds, whereby more than 30 % by weight of the primary particles have a plate-like habitus, that is that the length and width of the primary particles are at least three times greater than the thickness of the particles. The invention also relates to the production of said compounds by combining a metal salt with a cyanometallate compound. This method is characterised in that the combination takes place in the presence of at least one surface-active substance.
Abstract:
The invention relates to a catalyst suspension for carrying out the ring-opening polymerization of alkylene oxides containing; a) at least one multimetal cyanide compound having a crystalline structure and a content of platelike particles of at least 30 wt. % with regard to the multimetal cyanide compound; b) at least one organic complexing agent and/or; c) water and/or; d) at least one polyether and/or; e) at least one surface-active substance with the provision that at least constituent a) and at least two constituents b) to e) must be present.