Process for production of non-flammable cellulose materials

A graft polymer derived from cellulose and 2-methyl-5-vinyl pyridine is modified by treatment with a 0.5-1% solution of phosphoric acid at 20-60 DEG C. The cellulose may be first reacted with the sulphuric ester of 4-hydroxyethylsulphonyl-2-amino-anisole and the product diazotized and reacted with 2...

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Bibliographische Detailangaben
Hauptverfasser:	ROGOVIN ZAKHAR ALEXANDROVICH, TJUGANOVA MARGARITA ALEXANDROVNA, ZHAROVA TAMARA JAKOVLEVNA, KRJAZHEV JURY GAVRILOVICH
Format:	Patent
Sprache:	eng
Schlagworte:	FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR LAUNDERING TEXTILES 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 graft polymer derived from cellulose and 2-methyl-5-vinyl pyridine is modified by treatment with a 0.5-1% solution of phosphoric acid at 20-60 DEG C. The cellulose may be first reacted with the sulphuric ester of 4-hydroxyethylsulphonyl-2-amino-anisole and the product diazotized and reacted with 2-methyl-5-vinyl pyridine in the presence of acetic acid and ferrous sulphate. The cellulose may be in the form of fabric, yarn or paper.ALSO:A fire-proof material is produced by treating a graft polymer derived from cellulose and 2-methyl-5-vinyl pyridine with a 0.5-1% solution of phosphoric acid at 20-60 DEG C. The cellulose may be first reacted with the sulphuric ester of 4-hydroxyethylsulphonyl-2-amino-anisole and the product diazotised and reacted with 2-methyl-5-vinyl pyridine in the presence of acetic acid and ferrous sulphate. The cellulose may be in the form of fabric, yarn or paper.