Cellulose oxidation by a perfluorinated hydrocarbon solution of nitrogen dioxide

A process for oxidizing cellulose involves reacting the cellulose with a solution of nitrogen dioxide in a perfluorocarbon solvent. In preferred embodiments, the solvent has a boiling point in the range between about 30 DEG C and 100 DEG C, the nitrogen dioxide concentration in the solution is in th...

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Bibliographische Detailangaben
Hauptverfasser:	BOARDMAN, FRANKLIN, SAFERSTEIN, LOWELL
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES THEREOF FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR LAUNDERING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS POLYSACCHARIDES TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF TEXTILES OR THE LIKE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS
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Beschreibung
Zusammenfassung:	A process for oxidizing cellulose involves reacting the cellulose with a solution of nitrogen dioxide in a perfluorocarbon solvent. In preferred embodiments, the solvent has a boiling point in the range between about 30 DEG C and 100 DEG C, the nitrogen dioxide concentration in the solution is in the range between about 2% and 12% by weight, and the reactants are maintained at a temperature between about 25 DEG C and 60 DEG C during a reaction time of at least about 7 hours.