C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 65/26 (2006.01) B01J 27/26 (2006.01) B01J 31/02 (2006.01) C08G 65/10 (2006.01)
Patent
CA 2372335
The invention relates to double metal cyanide catalysts(DMC) for the production of polyether polyols by polyaddition of alkylene oxides to active starter compounds with hydrogen atoms, whereby the catalyst contains a) double metal cyanide compounds, b) of c) various organic complex ligands and c).alpha.,.beta. unsaturated carboxylic acid esters.The activity of the inventive catalysts in the production of polyether polyols is increased substantially.
L'invention concerne des catalyseurs à cyanure métallique double (DMC) pour la fabrication de polyétherpolyols par polyaddition d'oxydes d'alkylène à des composés de départ présentant des atomes d'hydrogène actifs. Le catalyseur renferme a) des composés de cyanure métallique double, b) des ligands complexes organiques différents de c), et c) des esters d'acides carboxyliques .alpha.,.beta.-insaturés. Les catalyseurs selon l'invention possèdent une activité sensiblement plus élevée dans la production de polyétherpolyols.
Gupta Pramond
Hofman Jorg
Ooms Pieter
Aktiengesellschaft Bayer
Basf Aktiengesellschaft
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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