Method for preparing metal cyanide catalyst complexes using...

Details Method for preparing metal cyanide catalyst complexes using... Method for preparing metal cyanide catalyst complexes using...

2006-09-05

2006-09-05

Wood, Elizabeth D. (Department: 1755)

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

Catalyst or precursor therefor

Organic compound containing

C502S175000

Reexamination Certificate

active

07101823

ABSTRACT:
Double metal cyanide catalysts (DMC) are complexed with complexing agents that are miscible in poly(propylene oxide) at higher temperatures and immiscible at lower temperatures. The complexing agent is a poly(ethylene oxide) polymer or a copolymer having a poly(ethylene oxide) block. The catalyst is easily removed from a polyether polyol.

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