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1. EP1537261 - METHOD FOR THE PRODUCTION OF SHAPED CELLULOSE BODIES

Office European Patent Office
Application Number 03763499
Application Date 04.07.2003
Publication Number 1537261
Publication Date 08.06.2005
Publication Kind B1
IPC
D01F 2/00
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
D06M 15/03
DTEXTILES; PAPER
06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D0664
15Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with macromolecular compounds; Such treatment combined with mechanical treatment
01with natural macromolecular compounds or derivatives thereof
03Polysaccharides or derivatives thereof
B29C 47/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
47Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
C08L 1/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
1Compositions of cellulose, modified cellulose, or cellulose derivatives
02Cellulose; Modified cellulose
C08L 5/08
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
5Compositions of polysaccharides or of their derivatives not provided for in group C08L1/ or C08L3/142
08Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
D01F 1/10
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
1General methods for the manufacture of man-made filaments or the like
02Addition of substances to the spinning solution or to the melt
10Other agents for modifying properties
CPC
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
C08L 1/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
1Compositions of cellulose, modified cellulose or cellulose derivatives
02Cellulose; Modified cellulose
C08L 5/08
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
5Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
08Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
Applicants CHEMIEFASER LENZING AG
Inventors REDLINGER SIGRID
REITER GERHARD
FIRGO HEINRICH
Priority Data 0300186 04.07.2003 AT
10512002 12.07.2002 AT
Title
(DE) VERFAHREN ZUR HERSTELLUNG CELLULOSISCHER FORMKORPER
(EN) METHOD FOR THE PRODUCTION OF SHAPED CELLULOSE BODIES
(FR) PROCEDE DE FABRICATION DE CORPS MOULES CELLULOSIQUES
Abstract
(DE)
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung cellulosischer Formkörper nach dem Aminoxidverfahren, umfassend die Schritte: Ausformen einer Lösung der Cellulose in einem wässerigen tertiären Aminoxid; Ausfällen der ausgeformten Lösung; Waschen des so erhaltenen Formkörpers und Trocknen des Formkörpers. Das erfindungsgemässe Verfahren ist dadurch gekennzeichnet, dass der Lösung der Cellulose und/oder einem Vorläufer dieser Lösung ein Chitosoniumpolymer zugegeben wird und/oder der Formkörper vor dem Trocknen mit einem Chitosoniumpolymer behandelt wird, wobei das Chitosoniumpolymer in einer Standardspinnlösung im wesentlichen vollständig löslich ist.

(EN)
The invention relates to a method for producing shaped cellulose bodies according to the amine oxide method comprising the following steps: a cellulose solution is shaped in an aqueous tertiary amine oxide; the shaped solution is precipitated; and the obtained shaped body is washed and dried. The inventive method is characterized by the fact that a chitosonium polymer is added to the cellulose solution and/or a precursor of said solution, and/or the shaped body is treated with a chitosonium polymer before being dried, said chitosonium polymer being essentially entirely soluble in a standard spinning solution.

(FR)
Procédé de fabrication, à l'aide d'aminoxyde, de corps moulés cellulosiques, qui consiste à façonner une solution de cellulose dans un aminoxyde tertiaire aqueux, à précipiter la solution façonnée, à laver le corps moulé ainsi obtenu et à sécher le corps moulé. Le procédé selon la présente invention est caractérisé en ce qu'un polymère chitosonium est ajouté à la solution de cellulose et / ou à un précurseur de cette solution, et /ou en ce que le corps moulé est traité avant séchage à l'aide d'un polymère chitosonium, ledit polymère chitosonium étant pour l'essentiel complètement soluble dans une solution de filage standard.