Patent · US Expired

Shaped article comprising a permanently plasticized cellulose hydrate composition and preparation thereof

US4253879A · kind A · utility

4Cited by

10References

27Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Klaus-Dieter Hammer · Mainz, DE
Gunter Gerigk · Oberursel, DE
Wolf-Rainer Neeff · Wiesbaden, DE
Max Bytzek · Naurod, DE

Key dates

Filing date	Nov 30, 1977
Grant date	Mar 3, 1981
Priority date	—
Expiry date	Nov 30, 1997

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/1324
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A shaped article, especially a tubing, is disclosed which comprises a plasticized cellulose hydrate composition comprising a cellulose hydrate and a plasticity enhancing amount of at least one substantially water insoluble plasticizing ester of an aliphatic monocarboxylic acid containing from about 9 to about 24 carbon atoms and a polyalcohol comprising at least two hydroxy groups at least one of which is esterified with said aliphatic monocarboxylic acid, and water and/or a plasticizer. Such shaped articles can be prepared by mixing a viscose solution with a liquid containing the plasticizing ester, introducing the resulting mixture into a precipitating bath and drying the precipitated shaped body. Tube-shaped articles are especially suited as sausage casings.

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