Production of lenticular tablets by melt calendering

US6132659A · kind A · utility

Assignee

• BASF SE

Inventors

• Joerg Rosenberg · Ellerstadt, DE
• Werner Maier · Schifferstadt, DE
• Jorg Breitenbach · Mannheim, DE

Key dates

• Filing date: Jun 20, 1997
• Grant date: Oct 17, 2000
• Expiry date: Jun 20, 2017

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61J2200/20
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for the production of lenticular tablets by melt calendering in which molding rolls with depressions in the shape of segments of an ellipsoid are used. The process according to the invention affords tablets which are easily deflashed and in which the tablet residue to be abraded when there is a displacement between the upper and lower half of the tablet is small.