Biologically degradable polyamino dicarboxylic acid--CO--anhydro amino dicarboxylic acid derivative

US5229469A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Volker Krone · Flörsheim, DE
• Axel Walch · Baldham, DE

Key dates

• Filing date: Jan 29, 1991
• Grant date: Jul 20, 1993
• Expiry date: Jan 29, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G73/14
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to biologically degradable polymers, in particular polyaminodicarboxylic acid-co-anhydroaminodicarboxylic acid derivatives, to a process for their preparation and to the use thereof for depot preparations having controlled delivery of active compound.