Process for producing regenerated cellulosic fibers
Regenerated cellulosic fibers of improved resistance to alkaline treatment are produced by nitrosating and dissolving from 5 to 14% by weight of a cellulosic material in a dialkylacylamide solvent while said solution is maintained at a temperature no greater than 20 DEG C to form a cellulose nitrite...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
01.11.1977
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Subjects | |
Online Access | Get full text |
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Summary: | Regenerated cellulosic fibers of improved resistance to alkaline treatment are produced by nitrosating and dissolving from 5 to 14% by weight of a cellulosic material in a dialkylacylamide solvent while said solution is maintained at a temperature no greater than 20 DEG C to form a cellulose nitrite ester, and regenerating the cellulose by contacting the cellulose ester with a regenerant. Regeneration of the cellulose occurs before significant oxidation of the cellulose takes place. |
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Bibliography: | Application Number: US19760662132 |