Aqueous N-methylmorpholine N-oxide solution of cellulose

The intention is to reduce the discoloration of cellulose and the breakdown of N-methylmorpholine N-oxide (NMMO) occurring on preparation and heating of a solution of cellulose in water and NMMO. This is achieved according to the invention by the solution containing 0.01 to 1%, preferably 0.1%, of H...

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Hauptverfasser:	FIRGO, HEINRICH, WEINZIERL, KARIN, HINTERHOLZER, PETER, WOLSCHNER, BERND, ASTEGGER, STEFAN, ZIKELI, STEFAN, MAENNER, JOHANN, EICHINGER, DIETER
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G 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 GENERAL PROCESSES OF COMPOUNDING METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES ORGANIC MACROMOLECULAR COMPOUNDS POLYSACCHARIDES SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	The intention is to reduce the discoloration of cellulose and the breakdown of N-methylmorpholine N-oxide (NMMO) occurring on preparation and heating of a solution of cellulose in water and NMMO. This is achieved according to the invention by the solution containing 0.01 to 1%, preferably 0.1%, of H2O2 and 0.01 to 2%, preferably 0.1%, of a stabiliser for H2O2, preferably oxalic acid or salts thereof.