Title: Process and device for producing cellulose films
Application Number: 94190687 Application Date: 1994.07.27
Publication Number: 1114499 Publication Date: 1996.01.03
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: A22C13/00;B29C47/00;B29C47/88
Applicant(s) Name: Lenzing Aktiengesellschaft Address:
Inventor(s) Name: Stefan Zikeli;Ernst Rauch;Klaus Renner
Attorney & Agent: ZHAO XIN LIN DAOTIANG
Abstract:
    A device is disclosed for producing cellulose films by extrusion of a heated solution of cellulose in a tertiary amine oxide. The device has an extrusion die with an extrusion slit and is characterised in that a coolant gas supply (2C) for cooling the extruded film is arranged directly underneath the extrusion die. This device is particularly suitable for producing cellulose tubular films.
Time: 17
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