Polycondensation of dihydric alcohols and polyhydric alcohols an

Details Polycondensation of dihydric alcohols and polyhydric alcohols an Polycondensation of dihydric alcohols and polyhydric alcohols an

1993-08-13

1994-12-06

Chan, Nicky

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D31912

Patent

active

053712447

ABSTRACT:
Polyethercyclicpolyols are prepared by thermally condensing a polyol having at least three hydroxyl groups of which at least two of the hydroxyl groups are vicinal, precursors of the polyol, cyclic derivatives of the polyol, or mixtures thereof, and controlling process conditions to avoid substantial undesirable degeneration. Lower molecular weight polyethercyclicpolyols are polycondensed ith dihydric alcohols to form higher molecular weight polyethercyclicpolyols.

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