Double metal cyanide catalysts for producing polyether polyols

Details Double metal cyanide catalysts for producing polyether polyols Double metal cyanide catalysts for producing polyether polyols

B - Operations, Transporting

01

J

B01J 27/26 (2006.01) B01J 31/02 (2006.01) B01J 31/06 (2006.01) B01J 31/18 (2006.01) B01J 31/22 (2006.01) C08G 65/10 (2006.01) C08G 65/26 (2006.01)

Patent

CA 2390126

The invention relates to novel double metal cyanide (DMC) catalysts for producing polyether polyols by the polyaddition of alkenyl oxides to starter compounds which have active hydrogen atoms. The catalyst contains a) double metal cyanide compounds, b) organic complex ligands which are different from c) and c) two or more complexing components from the compound classes of functionalised polymers, glycidyl ethers, glycosides, carboxylic acid esters of multivalent alcohols, bile acids or their salts, esters or amides, cyclodextrines, phosphorous compounds, .alpha.,.beta.-unsaturated carboxylic acid esters or ionic surface-active or interfacially-active compounds. The inventive catalysts have a significantly increased activity during the polyether polyol production.

L'invention concerne de nouveaux catalyseurs à cyanure métallique double (DMC) pour la production de polyols de polyéther par polyaddition d'oxydes d'alkylène à des composés de départ présentant des atomes d'hydrogène actifs. Les catalyseurs selon l'invention contiennent : a) des composés cyanure métallique double, b) des ligands complexes organiques différents de c) et c) deux ou plusieurs constituants complexants sélectionnés dans les classes de composés des polymères fonctionnalisés, des éthers de glycidyle, des glycosides, des esters d'acide carboxylique d'alcools polyvalents, des acides biliaires ou de leurs sels, esters ou amides, des cyclodextrines, des composés phosphore, des esters d'acide carboxylique .alpha.,.beta. insaturés ou des composés ioniques de surface ou tensio-actifs. Les catalyseurs selon l'invention présentent une activité fortement augmentée pour la production de polyols de polyéther.

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