B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
402/268, 252/62
B01J 27/26 (2006.01) B01J 31/06 (2006.01) C08G 65/10 (2006.01) C08G 65/26 (2006.01)
Patent
CA 2306378
The present invention relates to highly active, substantially crystalline double metal cyanide (DMC) catalysts, a process for the preparation of these double metal cyanide catalysts, a process for producing polyether polyols by the polyaddition of alcohol ethers onto starter compounds containing active hydrogen atoms from these DMC catalysts, and to the polyether polyols produced by this process. The DMC catalysts of the invention comprise a) double metal cyanide compounds, b) organic complexing ligands, and c) functionalised polymers. These catalysts exhibit increased activity in the process for the production of polyether polyols.
L'invention concerne des catalyseurs sensiblement cristallins de cyanure de métaux composites (DMC), très actifs, qui s'utilisent pour prépare des polyols de polyéther par polyaddition d'oxydes d'alkylène sur des composés de démarrage présentant des atomes d'hydrogène actifs. Le catalyseur a) contient des composés cyanure de métaux composites, b) des ligands complexes organiques différents de c), et c) contient des polymères fonctionnalisés. Ces catalyseurs obtenus selon l'invention présentent une activité fortement augmentée pour la préparation de polyol de polyéther.
Gupta Pramod
Hofmann Jorg
Kumpf Robert-Joseph
Ooms Pieter
Schafer Walter
Aktiengesellschaft Bayer
Norton Rose Or S.e.n.c.r.l.,s.r.l./llp
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