Patent · US Active

Biaxially drawn tubular film comprising three adjacent polyamide-based layers

US9265265B2 · kind B2 · utility

1Cited by

7References

20Claims

0Family size

Assignee

Kalle GmbH · DE

Inventors

Ulrich Delius · Frankfurt, DE
Bernhard Feron · Wiesbaden, DE

Key dates

Filing date	Sep 6, 2006
Grant date	Feb 23, 2016
Priority date	—
Expiry date	Feb 9, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31732
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a biaxially drawn multilayer tubular film consisting of at least five layers, in which the external and two other layers contain aliphatic (co)-polyamide in a quantity equal to or greater than 50% by weight and are differently assembled. The inventive tubular film is produced by coextrusion and, thereby is seamless. Said tubular film can be used in the form of food product packagings, in particular as synthetic sausage casing.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.