Process for making gelatine films

US5316717A · kind A · utility

Assignee

• Deutsche Gelatine-Fabriken Stoess AG · DE

Inventors

• Peter Koepff · Heidelberg, DE
• Klaus Braumer · Eberbach, DE
• Helmuth Stahl · Michelstadt, DE
• Eberhard Dick · Trochtelfingen, DE

Key dates

• Filing date: Aug 26, 1991
• Grant date: May 31, 1994
• Expiry date: Aug 26, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09H9/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for making gelatine films, in particular sheet gelatine, from powdered gelatine includes the following steps: The powdered gelatine with the addition of water is plasticized by the application of shearing forces at an elevated pressure and an elevated temperature, the plasticized mass is pressed in the form of a film through a slotted die, the film is drawn off the slotted die under tension and the taut film is dried.