Title:
HOLLOW FIBER MEMBRANE
Document Type and Number:
Japanese Patent JP2019214021
Kind Code:
A
Abstract:
To provide a hollow fiber membrane which can prevent concentration of local flow to a thin film portion of small pressure loss, can maintain high liquid permeation performance and filtration accuracy, has high outside diameter uniformity, has low eccentricity and has uniform membrane thickness.SOLUTION: A hollow fiber membrane as the hollow fiber membrane which contains at least one resin selected from a group consisting of polyethylene, polyketone and polyamide has porous holes. Therein, an average through-hole diameter of the porous holes is 0.01 to 10 μm, an outside diameter uniformity parameter of the hollow fiber membrane is 4.0% or less and the eccentricity of the hollow fiber membrane is 15% or less.SELECTED DRAWING: None
Inventors:
SAITO YUTA
Application Number:
JP2018112637A
Publication Date:
December 19, 2019
Filing Date:
June 13, 2018
Export Citation:
Assignee:
ASAHI KASEI CORP
International Classes:
B01D71/26; B01D61/00; B01D63/02; B01D69/08; B01D71/38; B01D71/56; B01D71/62; B01D71/76; B01D71/82; C02F1/44; C08L73/00
Domestic Patent References:
| JP2005179443A | 2005-07-07 | |||
| JP2006150271A | 2006-06-15 | |||
| JP2014240041A | 2014-12-25 | |||
| JP2014151273A | 2014-08-25 | |||
| JP2013244424A | 2013-12-09 | |||
| JPS5434416A | 1979-03-13 | |||
| JP2014173013A | 2014-09-22 |
Foreign References:
| WO2013035747A1 | 2013-03-14 | |||
| WO2016024573A1 | 2016-02-18 |
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mitsuhashi
Kazuhiro Nakamura
Toko Saito
Shunsuke Mima
Shinji Mitsuhashi
Kazuhiro Nakamura
Toko Saito
Shunsuke Mima