Patent · US Expired

Tubular packaging material and method for its manufacture

US4356199A · kind A · utility

12Cited by

12References

18Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Klaus-Dieter Hammer · Mainz, DE
Wolfgang Heinrich · Berlin, DE
Guenter Gerigk · Oberursel, DE
Max Bytzek · Naurod, DE

Key dates

Filing date	Aug 4, 1981
Grant date	Oct 26, 1982
Priority date	—
Expiry date	Aug 4, 2001

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31986
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

Disclosed is a tubular packaging material for sausage casings, comprising a carrier tubing comprised of cellulose hydrate and containing in its wall from about 5 to 12% by weight of water and from about 18 to 28% by weight of a plasticizer; and a coating on the inside and on the outside of the carrier tubing of a water-insoluble heat-cured synthetic condensation product wherein the carrier tubing is characterized by a swelling value in the range from about 80 to 120%, and the tubular packaging material, after soaking in water at a temperature between about 40.degree. to 50.degree. C. for a period of about 30 minutes and subsequent cooling to about room temperature, is characterized by dimensions in the wet state which are 2 to 6% greater than those before the soaking in water. Also disclosed are methods for preparing the packaging material.

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