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) B01J 31/22 (2006.01) C08G 65/34 (2006.01)

Patent

CA 2362504

The invention relates to novel double metal cyanide (DMC) catalysts for producing polyether polyols by polyaddition of alkylene oxides to starter compounds with active hydrogen atoms. The catalyst contains a) double metal cyanide compounds, b) organic complex ligands which are different from c) and c) ionic surface- or interface-active compounds. The inventive catalysts show considerably increased activity in the production of polyether polyols.

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 ligands complexes organiques différents de c); et c) des composés ioniques à activité de surface ou tensioactifs. Les catalyseurs de l'invention présentent, pour la production de polyéther-polyols, une activité fortement accrue.

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