Shaped cellulosic fibers

Details Shaped cellulosic fibers Shaped cellulosic fibers

C - Chemistry, Metallurgy

08

B

260/213

C08B 16/00 (2006.01) C08B 5/00 (2006.01) D01F 2/24 (2006.01)

Patent

CA 1082691

SHAPED CELLULOSIC FIBERS Abstract of the Disclosure: Shaped cellulosic fibers are produced by nitrosating and dissolving a cellulosic material in an aprotic solvent selected from the group consisting of a dialkylacylamide and dimethylsulfoxide and regenerating the dissolved cellulose by contacting the cellulose solution with a regenerant. The regenerant is butanol, pentanol or benzyl alcohol where the solvent is a dialkylacylamide and propanol, butanol or benzyl alcohol where the solvent is dimethylsulfoxide. The fibers have a generally crenulated shape as regenerated and require no special spinnerette designs nor special spinning conditions. - 1 -

272650

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