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1. US20050189675 - Process for the production of cellulosic moulded bodies

Office United States of America
Application Number 11033437
Application Date 11.01.2005
Publication Number 20050189675
Publication Date 01.09.2005
Publication Kind A1
IPC
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
D01F 2/02
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
02from solutions of cellulose in acids, bases, or salts
D06M 15/01
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
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
C08L 1/00
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
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
Inventors Redlinger Sigrid
Reiter Gerhard
Firgo Heinrich
Agents BAKER &; BOTTS
Priority Data 10512002 12.07.2002 AT
Title
(EN) Process for the production of cellulosic moulded 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.