Tubular food casing

US4529634A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Klaus-Dieter Hammer · Mainz, DE
• Hermann Winter · Marl, DE

Key dates

• Filing date: Jul 18, 1983
• Grant date: Jul 16, 1985
• Expiry date: Jul 18, 2003

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/1324
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

Disclosed is a tubular food casing based on cellulose, preferably fiber-reinforced cellulose, which is permeable to gas, water-vapor and smoke and which includes a synthetic polymeric coating on its outside surface comprising an elastic, non-adhesive copolymer based on hydrophilic vinyl monomers, particularly a copolymer based on unsaturated carboxylic acids and the esters thereof and, optionally, a wax, particularly a wax having functional groups. This coating functions to improve the casing's resistance to degradation by cellulases and other cellulolytic enzymes. Additionally, the invention describes a process for manufacturing the food casing, in which the cellulosic material, in the gel state, is coated with an aqueous dispersion and also the use of the casing in the production of long-keeping sausages having a mold overlay on their outer surfaces.