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1. WO1996020301 - CELLULOSIC MOLDING PROCESS AND CELLULOSIC MOLDINGS

Publication Number WO/1996/020301
Publication Date 04.07.1996
International Application No. PCT/DE1995/001864
International Filing Date 22.12.1995
Chapter 2 Demand Filed 02.07.1996
IPC
C08J 5/18 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5Manufacture of articles or shaped materials containing macromolecular substances
18Manufacture of films or sheets
D01D 5/24 2006.1
DTEXTILES; PAPER
01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
5Formation of filaments, threads, or the like
24with a hollow structure; Spinnerette packs therefor
D01F 2/00 2006.1
DTEXTILES; PAPER
01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
FCHEMICAL FEATURES IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
2Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
CPC
C08J 2301/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2301Characterised by the use of cellulose, modified cellulose or cellulose derivatives
02Cellulose; Modified cellulose
C08J 5/18
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
5Manufacture of articles or shaped materials containing macromolecular substances
18Manufacture of films or sheets
D01D 5/24
DTEXTILES; PAPER
01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
5Formation of filaments, threads, or the like
24with a hollow structure; Spinnerette packs therefor
D01F 2/00
DTEXTILES; PAPER
01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
2Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
Applicants
  • FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. [DE]/[DE] (AllExceptUS)
  • AKZO NOBEL FASER AG [DE]/[DE] (AllExceptUS)
  • WEIGEL, Peter [DE]/[DE] (UsOnly)
  • FINK, Hans-Peter [DE]/[DE] (UsOnly)
  • PURZ, Hans, Joachim [DE]/[DE] (UsOnly)
  • FRIGGE, Konrad [DE]/[DE] (UsOnly)
  • WACHSMANN, Ulrich [DE]/[DE] (UsOnly)
  • NYWLT, Martin [DE]/[DE] (UsOnly)
Inventors
  • WEIGEL, Peter
  • FINK, Hans-Peter
  • PURZ, Hans, Joachim
  • FRIGGE, Konrad
  • WACHSMANN, Ulrich
  • NYWLT, Martin
Agents
  • PFENNING, MEINIG, BUTENSCHÖN, BERGMANN, NÖTH, REITZLE, GRAMBOW, KRAUS
Priority Data
195 04 449.510.02.1995DE
P 44 46 491.623.12.1994DE
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR HERSTELLUNG VON CELLULOSISCHEN FORMKÖRPERN SOWIE CELLULOSISCHE FORMKÖRPER
(EN) CELLULOSIC MOLDING PROCESS AND CELLULOSIC MOLDINGS
(FR) PROCEDE DE PRODUCTION DE CORPS MOULES CELLULOSIQUES ET CORPS MOULES CELLULOSIQUES OBTENUS A L'AIDE DUDIT PROCEDE
Abstract
(DE) Die Erfindung betrifft ein Verfahren zur Herstellung von cellulosischen Formkörpern, in dem eine Lösung enthaltend in Aminoxiden gelöste Cellulose in einer Düse geformt wird und die geformte Lösung nach einer Luftstrecke in ein Fällmedium geführt wird. Die geformte Lösung wird nacheinander durch mindestens zwei Fällmedien geführt, wobei diese so ausgewählt werden, daß zumindest im ersten Fällmedium eine langsamere Koagulation der Cellulose gegenüber dem letzten Fällmedium erfolgt.
(EN) The invention pertains to a process for manufacturing cellulosic moldings wherein a solution containing cellulose dissolved in amine oxides is molded in a die and the molded solution is fed through an air zone into a regenerating medium. The molded solution is passed successively through at least two regenerating media, which are selected so that a slower coagulation takes place at least in the first regenerating medium than in the final regenerating medium.
(FR) L'invention concerne un procédé de production de corps moulés cellulosiques, selon lequel une solution contenant de la cellulose dissoute dans des oxydes d'amine est moulée dans une tuyère, la solution ainsi moulée étant introduite dans une substance de régénération, après passage dans une section sous flux d'air. La solution moulée passe par au moins deux substances de régénération, que l'on sélectionne de manière à ce qu'au moins la première substance de régénération permette une coagulation plus lente de la cellulose comparativement à la dernière.
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