Production method of deformed porous hollow fiber membrane

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United States of America Patent

PATENT NO 9821501
APP PUB NO 20150174809A1
SERIAL NO

14602368

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Abstract

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Methods of producing a deformed porous hollow fiber membrane by thermally induced phase separation, particularly by discharging a fusion kneaded product containing a thermoplastic resin and an organic liquid through an orifice of a hollow fiber-forming deformed nozzle; cooling and solidifying the fusion kneaded product discharged through the deformed nozzle to form the product into a hollow fiber-like material having a deformed cross section at a cross section vertical to a discharging direction; and extracting away the organic liquid from the hollow fiber-like material to obtain the deformed porous hollow fiber membrane, wherein an inorganic fine powder is kneaded in the fusion kneaded product.

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Patent Owner(s)

Patent OwnerAddress
ASAHI KASEI CHEMICALS CORPORATION1-105 KANDA JINBOCHO CHIYODA-KU TOKYO 101-8101

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujimura, Hirokazu Tokyo, JP 6 12
Hashino, Masatoshi Tokyo, JP 8 18
Kubota, Noboru Tokyo, JP 11 85
Matsuyama, Hideto Hyogo, JP 33 264

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