Sustained release tablet of a mixture of alginates and polyacrylates

US5230901A · kind A · utility

Assignee

• Knoll, Inc. · DE

Inventors

• Heinz Einig · Neustadt, DE
• Baerbel Stieren · Mannheim, DE
• Volker Buehler · Monsheim, DE
• Matthias Hollmann · Weisenheim am Sand, DE

Key dates

• Filing date: Oct 26, 1992
• Grant date: Jul 27, 1993
• Expiry date: Oct 26, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L5/04
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A mixture of an alginate and a polyacrylate in a ratio of from 15:1 to 1:2 is suitable for the preparation of depot drug forms.