Polyamide hollow fiber membrane, and production method thereof

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United States of America Patent

PATENT NO 8800783
APP PUB NO 20110168628A1
SERIAL NO

13119506

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Abstract

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A hollow fiber membrane is produced through a thermally induced phase separation process by dissolving a highly hydrophilic polyamide resin in a high-boiling-point solvent such as an aprotic polar solvent at a temperature of not lower than 100° C. The hollow fiber membrane has a membrane surface having a water contact angle of not greater than 80 degrees, and has a water permeability of not less than 100 L/m2·atm·h and a 0.1-μm particle rejection percentage of not less than 90%.

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Patent Owner(s)

Patent OwnerAddress
UNITIKA LTD4-1-3 KYUTARO-MACHI CHUO-KU OSAKA-SHI OSAKA 541-8566

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirota, Kazuo Osaka, JP 62 1047
Kawanaka, Satoshi Kyoto, JP 12 61
Matsuyama, Hideto Hyogo, JP 46 546
Ono, Takahiro Kyoto, JP 123 422

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