RU2002115639A - CATALYSTS BASED ON DOUBLE METALOCYANIDES FOR PRODUCING POLYESTERPOLIOLS - Google Patents

Claims (9)

1. The catalyst based on double metallocyanide (DMC catalyst), containing: a) one or more double metallocyanide compounds, b) one or more different from c) organic complex ligands, and c) two or more complexing components selected from the following classes of polymers with functional groups: polyethers or polyesters, polycarbonates, polyalkylene glycol sorbitan esters, polyalkylene glycol glycidyl ethers, polyacrylamide, acrylamide-acrylic acid copolymers, polyacrylic acid and copolymers maleic acids, polyacrylonitrile, polyalkyl acrylates, polyalkyl methacrylates, polyvinyl methyl ether, polyvinyl ethyl ether, polyvinyl acetate t, polyvinyl alcohol, poly-N-vinylpyrrolidone, copolymers of N-vinylpyrrolidone with acrylic acid, polyvinyl methyl ketone, poly-4-vinylphenol, copolymers of acrylic acid with styrene, polymers of oxazoline, polyalkyleneimines, copolymers of maleic acid and maleic oleate or maleic acid anhydrous glycidyl ethers, glycosides, esters of carboxylic acids and polyhydric alcohols, bile acids or their salts, esters or amides, cyclodextrins, phosphoric compounds, esters of α, β-unsaturated carboxylic acids or ionic surfactants, or ionic surfactants at the phase boundary. 2. The DMC catalyst according to claim 1, further comprising d) water and / or e) a water-soluble metal salt. 3. The DMC catalyst according to claim 1, wherein the double metal cyanide compound is zinc hexacyanocobaltate (II). 4. DMC catalyst according to one of claims 1 to 3, in which the organic complex ligand is tert-butanol. 5. DMC catalyst according to one of claims 1 to 4, in which catalyst 1 contains up to 80 wt.% A mixture of two or more complexing components c). 6. A method of producing a DMC catalyst, comprising the following steps: i) interaction in aqueous solution: α) metal salts with metal cyanide salts, β) organic complex ligands, which are neither polymers with functional groups, glycidyl ethers, glycosides, esters of carboxylic acids and polyhydric alcohols, bile acids or their salts, esters or amides, cyclodextrins, phosphoric compounds, esters α, β unsaturated carboxylic acids, neither ionogenic surfactants or ionic surfactants at the phase boundary, and γ) two different complexing components c) according to claim 1, ii) isolation, washing and drying of the catalyst obtained in stage i). 7. The method of producing polyether polyols by polyaddition of alkylene oxides to the starting compounds with active hydrogen atoms in the presence of one or more DMC catalysts according to one of claims 1 to 5. 8. Polyether polyol, which can be obtained by the method according to claim 7. 9. The use of one or more DMC catalysts according to one of claims 1 to 5 for producing polyether polyols by polyaddition of alkylene oxides to the starting compounds with active hydrogen atoms.