Oxidation inhibitors in prostane derivatives

US6512139B1 · kind B1 · utility

Assignee

• SCHERING CORPORATION · US

Inventors

• Torsten Wagner · Wiesbaden, DE
• Martin Wessel · Berlin, DE
• Ralph Lipp · Berlin, DE
• Bernd Iffert · Berlin, DE
• Heinrich Michel · Berlin, DE
• Jurgen Westermann · Berlin, DE
• Helmut Dahl · Berlin, DE
• Werner Skuballa · Berlin, DE

Key dates

• Filing date: Mar 7, 2001
• Grant date: Jan 28, 2003
• Expiry date: Mar 7, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08B37/0015
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to the use of an oxidation inhibitor, i.e. active carbon, for ambient air in industrial manufacturing, especially in the processing of prostane derivatives, whereby the oxidation inhibitor removes ozone from the process air before contact with said prostane derivatives. The concentration of decomposition products is reduced.