Smoke-and steam-permeable food skin made from a thermoplastic mixture with a natural appearance

US7976942B2 · kind B2 · utility

Assignee

• Kalle GmbH · DE

Inventors

• Stefanie Stalberg · Taunusstein, DE
• Ulrich Delius · Frankfurt, DE
• Bernhard Feron · Wiesbaden, DE

Key dates

• Filing date: May 3, 2004
• Grant date: Jul 12, 2011
• Expiry date: Jun 26, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2822
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a single- or multi-layered food casing, made from a thermoplastic mixture which comprises at least one aliphatic polyamide and/or copolyamide, at least one or more synthetic water-soluble polymers and at least one organic and/or inorganic filler. The skin has a water vapor permeability, as determined according to DIN 53122, in the non-oriented, monoaxially or biaxially oriented state of 50 to 1500 g/m2·d. The food casing is particularly suitable for use as an artificial sausage casing, particularly for raw sausages.