Process for the preparation of chitosan fibers
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United States of America Patent
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Aug 7, 1984
Grant Date -
N/A
app pub date -
Oct 7, 1982
filing date -
Oct 8, 1981
priority date (Note) -
Expired
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Abstract
Hollow chitosan fibres for use in ultrafiltration processes are described, and which can be plasticized by the addition of glycerin such that they contain this latter in a quantity variable between 0.5 and 5% by weight with respect to the polymer. Said fibres are prepared by the wet spinning of acid chitosan solutions, using an alkali solution as the external fibre coagulant and a gaseous phase containing a basic gaseous component as the internal fibre coagulant.
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