Tubular casing with an organochlorine-free coating impermeable to oxygen and water vapor, a process for its production and its use

US5405664A · kind A · utility

Assignee

• Wolff Walsrode AG · DE

Inventors

• Kirkor Sirinyan · Bensberg, DE
• Hanns P. Muller · Leverkusen, DE
• Rolf Dhein · Krefeld, DE
• Gunter Weber · Linden, DE
• Sebastian Meyer-Stork · Bad Fallingbostel, DE
• Michael Stiem · Walsrode, DE

Key dates

• Filing date: Feb 18, 1993
• Grant date: Apr 11, 1995
• Expiry date: Feb 18, 2013

Classification

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

Abstract

This invention relates to a multilayer organochlorine-free tubular casing consiting of PA1 a. a regenerated cellulose substrate, PA1 b. optionally a layer of primer, PA1 c. a 5 to 40 .mu.m thick, organochlorine-free polymeric water vapor barrier layer which is characterized in that it has a permeability to water vapor of at most 50 g/m.sup.2.24 h and a surface tension.ltoreq.34 mN/m, PA1 d. a 5 to 40 .mu.m thick, polymeric organochlorine-free oxygen barrier layer, characterized in that it has a permeability to oxygen of at most 120 cm.sup.3 /m.sup.2.24 h bar and a surface tension of.gtoreq.38 N/m. The invention also relates to its use as a casing for sausages of the Kochwurst and Bruhwurst type.