A PROCESS FOR PRODUCING CELLULOSE CARBAMATE

PCT No. PCT/FI82/00069 Sec. 371 Date Aug. 30, 1983 Sec. 102(e) Date Aug. 30, 1983 PCT Filed Dec. 30, 1982 PCT Pub. No. WO83/02278 PCT Pub. Date Jul. 7, 1983.The present invention concerns a procedure for producing cellulose carbamate from cellulose and urea. To avoid alkali treatment of the cellulos...

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Hauptverfasser:	MANDELL LEO, EKMAN KURT, TURUNEN OLLI, EKLUND VIDAR, HUTTUNEN JOUKO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CARBURETTING AIR OR OTHER GASES CHEMISTRY COMBUSTION APPARATUS COMBUSTION PROCESSES COMPOSITIONS BASED THEREON CONSUMING WASTE PRODUCTS BY COMBUSTION CREMATION FURNACES DERIVATIVES THEREOF FUELS HEATING LIGHTING LUBRICANTS MECHANICAL ENGINEERING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PEAT PETROLEUM, GAS OR COKE INDUSTRIES POLYSACCHARIDES PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROMSOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR PREPARATION OR CHEMICAL WORKING-UP WEAPONS
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Zusammenfassung:	PCT No. PCT/FI82/00069 Sec. 371 Date Aug. 30, 1983 Sec. 102(e) Date Aug. 30, 1983 PCT Filed Dec. 30, 1982 PCT Pub. No. WO83/02278 PCT Pub. Date Jul. 7, 1983.The present invention concerns a procedure for producing cellulose carbamate from cellulose and urea. To avoid alkali treatment of the cellulose used as starting material with a view to decreasing the degree of polymerization of the cellulose, the cellulose in web form is exposed to a radiation dose of preferably 0.5 to 10 Mrad from a radiation source, whereafter the cellulose is reacted with urea at elevated temperature.