D - Textiles – Paper – 01 – D
Patent
D - Textiles, Paper
01
D
18/15, 18/596
D01D 5/247 (2006.01) D01D 5/24 (2006.01) D01F 2/04 (2006.01)
Patent
CA 1203655
ABSTRACT OF THE DISCLOSURE A method for the manufacture of a hollow fiber which comprises extruding a cellulosic spinning dope through an annular spinning nozzle directly into a non-congulative liquid directly into a upper layer with a coagulative liquid relative said spinning dope in the lower layer with a non-coagulative liquid of a halogenated hydrocarbon and, at the same time, introducing a non-coagulative liquid relative to said spinning dope into the inner center of the tubularly extruded thread of spinning dope, and subsequently passing the resultant tubular fiber of spinning dope through said coagulative liquid thereby coagulating and regenerating the fiber.
404199
Aoyagi Juuro
Seita Yukio
Takahara Kazuaki
Macrae & Co.
Terumo Corporation
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