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Title:
DOUBLE METAL CYANIDE CATALYSTS FOR PRODUCING POLYETHER POLYOLS
Document Type and Number:
WIPO Patent Application WO2001034297
Kind Code:
A3
Abstract:
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.

Inventors:
OOMS PIETER (DE)
HOFMANN JOERG (DE)
STEINLEIN CHRISTIAN (DE)
EHLERS STEPHAN (DE)
Application Number:
PCT/EP2000/010550
Publication Date:
October 11, 2001
Filing Date:
October 26, 2000
Export Citation:
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Assignee:
BAYER AG (DE)
OOMS PIETER (DE)
HOFMANN JOERG (DE)
STEINLEIN CHRISTIAN (DE)
EHLERS STEPHAN (DE)
International Classes:
B01J27/26; B01J31/02; B01J31/06; C07F3/06; B01J31/18; B01J31/22; C07F9/40; C07F15/06; C07F19/00; C08F4/50; C08F4/609; C08G65/10; C08G65/26; C08G65/28; (IPC1-7): B01J27/26; B01J31/06; C08G65/10
Domestic Patent References:
WO1998016310A11998-04-23
WO1999019063A11999-04-22
WO2000047650A12000-08-17
WO2000015337A12000-03-23
WO2000047649A12000-08-17
Foreign References:
EP1038900A22000-09-27
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