Patent ID: 6310227
Filing Date: 2001-10-30
Classification: A23D,A23L,C07H

Abstract:
A process for preparing a nondigestible polyol polyester having improved stability against hydrolysis, the process comprising the steps of:a. intimately mixing an aqueous wash solution phase comprising an ion exchange ligand with a crude polyol polyester comprising a divalent soap having a divalent ion,b. ion exchanging the divalent and higher valent ion from the divalent and higher valent soap to the ion exchange ligand, to form a divalent and higher valent ion exchange ligand,c. forming a monovalent soap, andd. removing the divalent and higher valent ion exchange ligand and the monovalent soap from the treated polyol polyester,whereby the level of divalent and higher valent metal ions in the resulting nondigestible polyol polyester is reduced.