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

C - Chemistry, Metallurgy

08

G

C08G 65/26 (2006.01) B01J 27/26 (2006.01) C07F 15/06 (2006.01) C07J 9/00 (2006.01) C07J 41/00 (2006.01)

Patent

CA 2362503

The invention provides new double metal cyanide (DMC) catalysts for preparing polyetherpolyols by the polyaddition of alkylene oxides to starter compounds which contain active hydrogen atoms, wherein the catalyst comprises a) double metal cyanide compounds, b) bile acids or their salts, esters or amides and c) organic complex ligands. The catalysts according to the invention show greatly increased activity during preparation of a polyetherpolyol.

L'invention concerne de nouveaux catalyseurs à base de cyanures métalliques doubles (DMC), qui permettent de produire des polyéther-polyols par polyaddition d'oxydes d'alkylène à des composés de départ renfermant des atomes d'hydrogène actifs. Le catalyseur contient: a) des composés à base de cyanures métalliques doubles; b) des acides biliaires ou des sels, des esters ou des amides desdits acides biliaires; et c) des ligands complexes organiques. Les catalyseurs de l'invention présentent, pour la production de polyéther-polyols, une activité fortement accrue.

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