Polyol polyester synthesis

US7304153B1 · kind B1 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Donald Benjamin Appleby · Cincinnati, US
• David Bruno · Doylestown, US
• Patrick Joseph Corrigan · Cincinnati, US
• John Keeney Howie · Cincinnati, US
• Ju-Nan Kao · Cincinnati, US
• Scott David Pearson · Mason, US
• Richard Gerard Schafermeyer · Cincinnati, US
• Glen Reid Wyness · Montgomery, US

Key dates

• Filing date: Dec 20, 1994
• Grant date: Dec 4, 2007
• Expiry date: Dec 20, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G63/48
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Polyol polyesters useful as nondigestible fat substitutes are prepared by improved heterogeneous interesterification processes between fatty acid esters of easily removable alcohol and polyol characterized by having one or more improvements such as using low levels of soap emulsifying agent, catalyst, and/or excess fatty acid ester; reducing the size of the polyol by mechanical means; removing extraneous particulate material during the reaction; using low temperature and/or high pressure and compensating by increasing the mass transfer area; and/or using backmixing in the initial stage(s) and plug-flow conditions in the final stage(s).