Basf Aktiengesellschaft

Basf Se Corporation

Dieter Junge

Georg Heinrich Grosch

Reinhard Lorenz

Kathrin Harre

Harald Larbig

Stephan Bauer

Thomas Ostrowski

Eva Baum

J&ouml;rg Erbes

Edward Michael Dexheimer

Eugen Gehrer

Ulrich Treuling

Jörg Erbes

Ulrich Kammel

Gerd Hoeppner

Peter De Vocht

Daniella Geelen

In a process for producing polyurethanes by reacting at least one polyisocyanate with at least one compound containing at least two hydrogen atoms which are reactive toward isocyanate groups, the compound having at least two active hydrogen atoms which is used is at least one polyether alcohol prepared by addition of alkylene oxides onto H-functional initiator substances by means of multimetal cyanide catalysis and the reaction is carried out in the presence of at least one metal salt.

Method for the production of polyurethanes

In multimetal cyanide complexes, more than 30% by weight of the primary particles have a platelet-like habit, i.e. the length and width of the primary particles is at least three times the thickness of the particles.

Multimetal cyanide compounds, their preparation and their use

Suspension of multimetal cyanide compounds, their preparation and their use

Method for producing polyetherols by ring-opening polymerisation of alkylene oxides

The present invention relates to a process for the preparation of polyether polyols by catalytic reaction of H-functional initiators with lower alkylene oxides, wherein the catalysts used are multimetal cyanide compounds and the H-functional initiators used are butane-1,4-diol, &agr;-hydroxy-&ohgr;-hydroxypoly(oxybutane-1,4-diyl), pentane-1,5-diol, decane-1,10-diol or mixtures of at least two of these compounds.

Method for preparing polyether polyols

Supported double metal cyanide catalysts, method for producing them, and their use for producing polyether alcohols

Multi-metal cyanide complexes as catalysts and their use in preparing polyetherpolyols

A process for preparing double metal cyanide catalysts, comprising combining an aqueous solution of a metal salt of the formula M,(X),, with an aqueous solution of a cyanometallic acid of the formula H,M,(CN),(A),, where one or both aqueous solutions may comprises at least one water-miscible organic ligand selected from the group consisting of alcohols, aldehydes, ketones, ethers, polyethers, esters, ureas, amides, nitrites or sulfides, if desired, combining the aqueous suspension thus obtained with at least one water-miscible organic ligand selected from the above-mentioned group, which ligand may be identical to or different from any previously added ligand, and separating the resulting two-metal cyanide complex from the suspension.

Process for preparing two-metal cyanide catalysts

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Frankenthal, Germany

Dieter Junge