Nano-scale dmc catalyst particles

Details Nano-scale dmc catalyst particles Nano-scale dmc catalyst particles

B - Operations, Transporting

01

J

B01J 37/26 (2006.01) B01J 37/00 (2006.01) C08G 65/10 (2006.01) C08G 65/26 (2006.01)

Patent

CA 2526619

Nano-scale DMC catalyst complexes are highly active alkylene oxide polymerization catalysts. Thy show a greatly improved ability to catalyze the formation of EO-capping onto secondary hydroxyl-terminated polyethers. The catalysts can be prepared by precipitation in the dispersed adequous phase of a water-in-oil emulsion.

L'invention concerne des complexes catalysants DMC d'échelle nanométrique, qui sont des catalyseurs de polymérisation d'oxydes d'alkylène hautement actifs. Ces catalyseurs montrent une aptitude considérablement améliorée à catalyser la formation de couche EO sur les polyéthers secondaires à terminaison hydroxyle. Les catalyseurs peuvent être préparés par précipitation dans la phase aqueuse dispersée d'une émulsion eau dans l'huile.

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