EP 0900292 B1 19991117 - PROCESS FOR PRODUCING A CELLULOSE MOULD BODY
Title (en)
PROCESS FOR PRODUCING A CELLULOSE MOULD BODY
Title (de)
VERFAHREN ZUR HERSTELLUNG CELLULOSISCHER FORMKÖRPER
Title (fr)
PROCEDE POUR PRODUIRE DES CORPS MOULES EN CELLULOSE
Publication
Application
Priority
- DE 19617079 A 19960429
- EP 9701986 W 19970419
Abstract (en)
[origin: WO9741284A1] This invention concerns a process for producing a cellulose mould body in which a solution containing cellulose and a tertiary amine-N-oxide is extruded through a die (1) consisting of at least one die channel (7) with an inlet area, an outlet area and a die channel port (8). The extrudate is then led through an air gap, drawn in it, and finally coagulated in a regenerating bath (3). The die channel (7) (of which there is at least one) has a first conical area (9) facing the inlet area with a diameter which diminishes in the direction of the die channel port (8). The die channel (7) (of which there is at least one) has at least a second conical area (10) facing the outlet area with a diameter which diminishes in the direction of the die channel port (8). The first conical area (9) is connected to the second conical area (10) by a rounded area (11), and it has a larger aperture angle than the second conical area (10). The second conical area (10) has a length-to-diameter (L/D) relationship of the diameter D of the die channel port (8) between 1 and 15.
IPC 1-7
IPC 8 full level
CPC (source: EP)
Designated contracting state (EPC)
AT DE ES FR GB IT NL
DOCDB simple family (publication)
WO 9741284 A1 19971106; AT E186758 T1 19991215; AU 2700197 A 19971119; DE 59700734 D1 19991223; EP 0900292 A1 19990310; EP 0900292 B1 19991117; ID 17252 A 19971211; JP 2000512695 A 20000926; TW 360720 B 19990611
DOCDB simple family (application)
EP 9701986 W 19970419; AT 97920723 T 19970419; AU 2700197 A 19970419; DE 59700734 T 19970419; EP 97920723 A 19970419; ID 971203 A 19970411; JP 53852797 A 19970419; TW 86104976 A 19970417