Process for the production of reaction mixtures containing ester polyols

US5266714A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Gerhard Stoll · Winnenden, DE
• Peter Daute · Beverstedt, DE
• Rainer Hoefer · Goldkronach, DE
• Roland Gruetzmacher · Wülfrath, DE
• Hermann Kluth · Goldkronach, DE

Key dates

• Filing date: Apr 21, 1992
• Grant date: Nov 30, 1993
• Expiry date: Apr 21, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C69/675
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Process for the preparation of ester polyols by conducting the ring opening of epoxidized esters and/or alcohols with carboxylic acids by the controlled addition of the epoxidized compounds to the carboxylic acids wherein the carboxylic acids are present in at least stoichiometric quantities based on epoxide groups, to minimize unreacted epoxide groups and produce ester polyols having relatively low viscosities compared to those produced by the one-pot prior art process.