Title:
ION EXCHANGE FIBER, WATER PURIFICATION FILTER AND WATER TREATMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2018/043462
Kind Code:
A1
Abstract:
The present invention relates to an ion exchange fiber which is provided with a core fiber and an ion exchange layer that is arranged around the core fiber and contains a crosslinked polymer compound having an ion exchange group, and which is characterized in that: the area of the ion exchange layer accounts for 50% to 90% (inclusive) of the total cross-sectional area of a cross-section that is perpendicular to the longitudinal direction of the ion exchange fiber; and the swelling ratio of the ion exchange fiber is 50% or less.
Inventors:
MIYAMOTO RYOMA (JP)
YONEDA KEISUKE (JP)
HIRANABE RYUICHIRO (JP)
KANAMORI SATOKO (JP)
TAKEDA KEIJI (JP)
NAGAI NORIKO (JP)
ASAI NAOKI (JP)
YONEDA KEISUKE (JP)
HIRANABE RYUICHIRO (JP)
KANAMORI SATOKO (JP)
TAKEDA KEIJI (JP)
NAGAI NORIKO (JP)
ASAI NAOKI (JP)
Application Number:
PCT/JP2017/030866
Publication Date:
March 08, 2018
Filing Date:
August 29, 2017
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B01J47/127; B01J39/20; B01J45/00; C02F1/42; C02F1/44; D06M14/16; D06M15/263; D06M15/285
Foreign References:
| JPH04187248A | 1992-07-03 | |||
| JP2008019530A | 2008-01-31 | |||
| JPH08199480A | 1996-08-06 | |||
| JPS53106687A | 1978-09-16 | |||
| JPH08269218A | 1996-10-15 | |||
| JP2013123699A | 2013-06-24 | |||
| JP2010023006A | 2010-02-04 | |||
| JPH08503272A | 1996-04-09 | |||
| JPH01234428A | 1989-09-19 | |||
| JPH0987399A | 1997-03-31 | |||
| JP2005246126A | 2005-09-15 | |||
| JPH01234428A | 1989-09-19 | |||
| JPH0987399A | 1997-03-31 | |||
| JPH08199480A | 1996-08-06 | |||
| JP2016169275A | 2016-08-31 | |||
| JP2016251199A | 2016-12-26 |
Other References:
See also references of EP 3508273A4
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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