Double metal cyanide catalysts for preparing polyether polyols

Details Double metal cyanide catalysts for preparing polyether polyols Double metal cyanide catalysts for preparing polyether polyols

2005-10-11

2005-10-11

Wood, Elizabeth D. (Department: 1755)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Inorganic carbon containing

C502S159000, C502S162000, C502S167000, C502S170000, C502S172000

Reexamination Certificate

active

06953765

ABSTRACT:
The invention is directed to a double-metal cyanide catalyst for the preparation of a polyether polyol by the polyaddition of an alkylene oxideon to a starter compound containing active hydrogen atoms, wherein the DMC catalyst comprises a) at least one double-metal cyanide compound; b) at least one organic complexing ligand; and c) two different complexing components.

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