Process for the preparation of chitosan fibers

Details Process for the preparation of chitosan fibers Process for the preparation of chitosan fibers

1982-10-07

1984-08-07

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Reactive gas or vapor treatment of work

Work is organic material

264186, 2642091, 264561, 428398, D02G 300

Patent

active

044643217

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.

REFERENCES:
patent: 3794731 (1974-02-01), Dannert et al.
patent: 3962158 (1976-06-01), Mima et al.
patent: 4029727 (1977-06-01), Austin et al.
patent: 4145391 (1979-03-01), Rodier
patent: 4309534 (1982-01-01), Austin
patent: 4323627 (1982-04-01), Joh
patent: 4378017 (1983-03-01), Kosugi et al.
"Mechanical Prop. of Chitosan Membranes", by Clark et al., 5 pages, to be published in Ocean '78.

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