Test system for characterizing the compatibility of bioactive substances and polyvinylpyrrolidone

US6599931B1 · kind B1 · utility

Assignee

• Abbott GmbH & Co. KG · DE

Inventors

• Jorg Breitenbach · Mannheim, DE
• Robert Heger · Heidelberg, DE
• Dirk Simon · Mutterstadt, DE
• Bernd Liepold · Dossenheim, DE

Key dates

• Filing date: Sep 18, 1999
• Grant date: Jul 29, 2003
• Expiry date: Sep 18, 2019

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K9/146
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A test system for characterizing the compatibility of bioactive substances with polyvinylpyrrolidones in a solid dispersion consisting of one or more bioactive substances and 1,3-bis(1-pyrrolidonyl)butane.