Process for the preparation of alkoxylates having a narrow distribution of homologs using antimony pentahalide complexes as the catalyst

US5210323A · kind A · utility

Assignee

• Hoecht Aktiengesellschaft · DE

Inventors

• Ignaz Wimmer · Winhöring, DE
• Rainer Kupfer · Hattersheim, DE

Key dates

• Filing date: May 28, 1992
• Grant date: May 11, 1993
• Expiry date: May 28, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G65/266
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

In the process described for the preparation of alkoxylates having a narrow distribution of homologs by reaction of compounds containing at least one hydroxyl group with alkylene oxide, complex compounds of antimony pentahalide with a special Lewis base are used as the catalysts. Alkoxylates having a narrow distribution of homologs and good color quality are obtained at a high conversion.