Solid foamed active substance preparations

US6150424A · kind A · utility

Assignee

• BASF SE

Inventors

• Jorg Breitenbach · Mannheim, DE
• Horst Baumgartl · Ludwigshafen, DE

Key dates

• Filing date: Mar 1, 1999
• Grant date: Nov 21, 2000
• Expiry date: Mar 1, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2339/06
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Solid foamed active ingredient preparations based on melt-processable polymers, obtainable by extrusion of a melt of one or more polymers which comprises active ingredient and which is impregnated with a volatile, physiologically acceptable blowing agent and expanded.