METHOD OF MAKING CELLULOSE FORMPIECES

To prepare cellulose moulded articles from a solution of cellulose in N-methylmorpholine-N-oxide (NMMO) and water, the solution is moulded and the cellulose is then precipitated in a precipitation bath which contains water and NMMO. According to the invention, the temperature of the precipitation ba...

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Bibliographische Detailangaben
Hauptverfasser:	ZIKELI STEFAN, JURHOVIC RAIMUND, EICHINGER DIETER, HINTERHOLZER PETER, ASTEGGER STEPHAN, FIRGO HEINRICH, WEINZIERL KARIN
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DERIVATIVES THEREOF METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES ORGANIC MACROMOLECULAR COMPOUNDS POLYSACCHARIDES SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	To prepare cellulose moulded articles from a solution of cellulose in N-methylmorpholine-N-oxide (NMMO) and water, the solution is moulded and the cellulose is then precipitated in a precipitation bath which contains water and NMMO. According to the invention, the temperature of the precipitation bath is at most 0 DEG C; as a result, the NMMO concentration in the precipitation bath can be increased without impairing the properties of the cellulose moulded articles prepared.