Process of oxyalkylation employing solid, heterogeneous MgO cata

Details Process of oxyalkylation employing solid, heterogeneous MgO cata Process of oxyalkylation employing solid, heterogeneous MgO cata

1995-11-06

1997-10-21

Sellers, Robert E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From heterocyclic reactant containing as ring atoms oxygen,...

525523, 568608, 568609, 568618, 568619, C08G 6528

Patent

active

056797648

ABSTRACT:
Oligomeric polyoxyalkylene polyethers are prepared by oxyalkylating a low molecular weight hydroxyl-functional starter molecule with one or more alkylene oxides in the presence of a solid, heterogeneous magnesium oxide catalyst. The catalyst is readily and rapidly removed by simple filtration to yield a polyether with minimal metal ion content suitable for use directly or as a starter molecule for further double metal cyanide complex catalyzed oxyalkylation.

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