Patent · US Expired

Multi-layered plastic casing with two adjacent layers made from aliphatic polyamide

US5863643A · kind A · utility

10Cited by

5References

8Claims

0Family size

Assignee

Wolff Walsrode AG · DE

Inventors

Michael Hennig-Cardinal von Widdern · Walsrode, DE
Ulrich Reiners · Neuenkirchen, DE

Key dates

Filing date	Nov 5, 1996
Grant date	Jan 26, 1999
Priority date	—
Expiry date	Nov 5, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31765
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a coextruded, biaxially stretched, tubular film, with at least two adjacent layers made from aliphatic polyamide, for wrapping goods packaged in liquid or paste form, especially foodstuffs, which are subjected to heat-treatment during and/or after being wrapped, such as for example, various types of German sausage, cheese, butter, etc.

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