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1. US20100289177 - Method for the production of shaped cellulose bodies

Office United States of America
Application Number 12818020
Application Date 17.06.2010
Publication Number 20100289177
Publication Date 18.11.2010
Publication Kind A1
IPC
B29C 71/00
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
71After-treatment of articles without altering their shape; Apparatus therefor
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
Applicants REDLINGER SIGRID
REITER GERHARD
FIRGO HEINRICH
Inventors Redlinger Sigrid
Reiter Gerhard
Firgo Heinrich
Agents BAKER BOTTS L.L.P.
Priority Data 10512002 12.07.2002 AT
Title
(EN) Method for the production of shaped cellulose bodies
Abstract
(EN)

The present invention relates to a process for the production of cellulosic moulded bodies according to the amine-oxide process, comprising the following steps:

    • moulding a solution of cellulose in an aqueous tertiary amine oxide
    • precipitating the moulded solution
    • washing the moulded body thus obtained and
    • drying the moulded body.

The process according to the invention is characterized in that a chitosonium polymer is added to the solution of the cellulose and/or to a precursor of said solution and/or the moulded body is treated with a chitosonium polymer prior to drying, with the chitosonium polymer being essentially completely soluble in a standard dope.