Patent ID: 6458918
Filing Date: 2002-10-01
Classification: B01J,C08G

Abstract:
A process for the preparation of partially crystalline polyether polyols having a hydroxy functionality of &gE;2, comprising(1) polymerizing (a) an alkylene oxide, with (b) the reaction product of (i) one or more bimetallic &mgr;-oxoalkoxides corresponding to the formula (I): (RO)x-1â€”M2â€”Oâ€”M1â€”Oâ€”M2â€”(OR)x-1â€ƒâ€ƒ(1) â€ƒwherein: each R: independently represents a C1-C10 alkyl radical; M1: represents zinc, cobalt, molybdenum, iron, chromium, or manganese; each M2: independently represents aluminum or titanium; and each x: independently represents 3 or 4; and (ii) one or more hydroxyl compounds corresponding to the formula (II): â€ƒwherein: Q: represents a C2-C20 alkyl group; R1 and R2: each independently represent a hydrogen atom, or a C1-C20 hydrocarbon radical; I and n: independently represent numbers of from 0 to 40; and y: represents an integer from 2 to 6.