Process for working up polyethersiloxanes

US7612159B2 · kind B2 · utility

Assignee

• GOLDSCHMIDT HOLDING GMBH · DE

Inventors

• George Burkhart · Strasburg, US
• Horst Dudzik · Essen, DE
• Wolfgang Hiersche · Essen, DE
• Wilfried Knott · Essen, DE
• Volker Mohring · Neheim, DE

Key dates

• Filing date: Dec 18, 2003
• Grant date: Nov 3, 2009
• Expiry date: Aug 26, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/34
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a process for working up polyethersiloxanes, wherein said polyethersiloxanes are treated with H2O2 and are separated from volatile components by separation methods known per se.