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...

B - Operations, Transporting

01

J

B01J 27/26 (2006.01) B01J 31/16 (2006.01) C08G 65/26 (2006.01) C08G 65/30 (2006.01)

Patent

CA 2479809

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.

Des catalyseurs doubles au cyanure pour métaux (DMC) sont complexés avec des agents complexants qui sont miscibles dans du poly(oxyde de propylène) à fortes températures et immiscibles à des températures inférieures. L'agent complexant est un polymère ou copolymère poly(oxyde d'éthylène) présentant un bloc poly(oxyde d'éthylène). Ledit catalyseur est facilement éliminé du polyol de polyéther.

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