Polyurethane foam-supported double metal cyanide catalysts...

Details Polyurethane foam-supported double metal cyanide catalysts... Polyurethane foam-supported double metal cyanide catalysts...

C - Chemistry, Metallurgy

08

G

C08G 65/10 (2006.01) B01J 27/26 (2006.01) B01J 31/06 (2006.01) B01J 35/04 (2006.01) C07C 41/03 (2006.01) C07C 43/13 (2006.01) C08G 18/48 (2006.01) C08G 65/26 (2006.01)

Patent

CA 2138063

Polyurethane foam-supported double metal cyanide (DMC) catalysts are disclosed as useful catalysts for epoxide polymerization. The foam-supported catalysts are easy to prepare, and are more active and show reduced induction periods compared with conventional powdered DMC catalysts. The catalysts of the invention can be recovered from the epoxide polymer products and can be reused to catalyze additional epoxide polymerizations.

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