Shaped article comprising a permanently plasticized cellulose composition of high mechanical strength and preparation thereof

US4221821A · kind A · utility

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: Sep 9, 1980
• Expiry date: Nov 30, 1997

Classification

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

Abstract

A shaped article, especially a tubing, is disclosed which comprises a plasticized cellulose hydrate composition of high mechanical strength which is obtained by reacting a plasticized cellulose composition obtained by treating cellulose hydrate with a plasticity-enhancing amount of at least one plasticizing alkyl derivative which comprises an alkyl containing from about 8 to about 24 carbon atoms and which is selected from the group consisting of alkylamido-bis-dimethylene-triazinone-tetramethylol, alkylamino-bis-dimethylene-triazinone-tetramethylol, a substantially water insoluble ester of an aliphatic monocarboxylic acid containing from about 9 to about 25 carbon atoms, and a polyalcohol, such as glycerol or polyethylene glycol with a cyclic dimethylolurea derivative, and water and/or a plasticizer. Such shaped articles can be prepared by mixing a viscose solution with a liquid containing the plasticizing alkyl derivative, introducing the resulting mixture into a precipitating bath, washing the precipitated shaped body in the gel state, treating it with an acidic solution of the cyclic urea compound and drying it in the heat. Tube-shaped articles are especially suited as sausage …