Catalysts for the polymerization of epoxides and process for...

Details Catalysts for the polymerization of epoxides and process for... Catalysts for the polymerization of epoxides and process for...

C - Chemistry, Metallurgy

07

F

260/428, 252/52.

C07F 13/00 (2006.01) B01J 27/26 (2006.01) C07C 43/13 (2006.01) C07F 15/00 (2006.01) C08G 65/26 (2006.01)

Patent

CA 1226294

A B S T R A C T NOVEL CATALYSTS FOR THE POLYMERIZATION OF EPOXIDES AND PROCESS FOR THE PREPARATION OF SUCH CATALYSTS Compounds according to formula M1a[M2(CN)b(A)C]d. w M3De. x H2O. y L. Z HnEm, wherein M1, M2, M3, A, D, E, a, b, c, d, e, w, x, y and z have defined meanings, in particular compounds according to the formula Zn3[Co(CN)6]2. w M3X2. x H2O. y L. z HX, wherein X represents a halide; M3 represents Zn(II), Co (II) or Fe(II); L represents an alcohol, ether or ester and w is a number between 0.7 and 1.5, x is a number between 2 and 10, y is a number between 1.5 and 3, and z is a number between 0.15 and 1.5, are novel and can be used as catalysts, preferably together with an initiator in the preparation of polyether alcohols and polyether polyols. The catalyst/initiator suspensions appear to be very stable.

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