Method for activating double metallocyanide-compounds

Details Method for activating double metallocyanide-compounds Method for activating double metallocyanide-compounds

2007-12-25

2007-12-25

Keys, Rosalynd (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C568S620000, C568S679000

Reexamination Certificate

active

10502803

ABSTRACT:
The present invention relates to a process for reacting epoxides with an initiator compound in the presence of a double metal cyanide compound as a catalyst, said process having a shortened induction period, and the double metal cyanide compound being activated by adding the epoxide to a mixture of double metal cyanide compound and initiator compound at an internal reactor pressure of less than 1 bar, and also to the polyethers themselves obtainable by such a process.

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