Shaped article comprising cellulose hydrate which is chemically modified by polyalkylene oxide containing synthetic polymers, and preparation thereof

US4097963A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Klaus-Dieter Hammer · Mainz, DE
• Gunter Gerigk · Oberursel, DE
• Lorenz Heiss · Hofheim, DE
• Klaus Fischer · Speyer, DE

Key dates

• Filing date: Aug 19, 1977
• Grant date: Jul 4, 1978
• Expiry date: Aug 19, 1997

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/1324
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A shaped article, especially a tube-shaped article, including a chemically modified cellulose hydrate and water which comprises: PA1 (a) a chemically modified cellulose hydrate which comprises a reaction product obtainable by reacting a cellulose derivative selected from the group consisting of a cellulose hydrate, a chemical reaction product of a cellulose hydrate with an alkylamido-bis-dimethylene-triazinone-tetramethylol, a chemical reaction product of a cellulose hydrate with an alkylamino-bis-dimethylene-triazinone-tetramethylol and mixtures thereof, with a synthetic polymer containing recurring oxyalkylene units and at least one terminal group having the formula --CH.sub.2 --O--CO--NH--CH.sub.2 -OH and PA1 (b) water, Is disclosed. Such articles can be prepared by treating a shaped article wherein the cellulose derivative is in the gel state with a solution of the synthetic polymer prior to drying the article under heating. Tube-shaped articles are particularly suited as sausage casings.