Title:
POLYVINYLIDENE FLUORIDE HOLLOW FIBER MEMBRANES AND PREPARATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2014/142394
Kind Code:
A1
Abstract:
Disclosed are polyvinylidene fluoride hollow fiber separation membranes and a preparation method thereof, and more particularly, to polyvinylidene fluoride hollow fiber separation membranes, which may be usefully used not only for water treatment, but also in the sewage treatment field, such as domestic waste water, industrial wastewater, or the like because the polyvinylidene fluoride hollow fiber separation membranes possess excellent pure water permeability and chemical resistance such as alkali resistance, etc., when applied as a separation membrane due to excellent alkali resistance while significantly improving hydrophobicity due to an amphoteric substance, which is a disadvantage of the PVDF hollow fiber separation membranes, by preparing a (PVDF) hollow fiber separation membrane with a thermosetting resin in which the amphoteric substance, in which hydrophilic groups and hydrophobic groups are constituted in the form of a covalent bond, has been introduced into a polyvinylidene fluoride (PVDF)-based resin, and a preparation method thereof.
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Inventors:
YANG IK BAE (KR)
YOON SUNG RO (KR)
CHOI YONG HO (KR)
KIM SE MI (KR)
YOON SUNG RO (KR)
CHOI YONG HO (KR)
KIM SE MI (KR)
Application Number:
PCT/KR2013/005645
Publication Date:
September 18, 2014
Filing Date:
June 26, 2013
Export Citation:
Assignee:
H2L CO LTD (KR)
H2L ENGINEERING CO LTD (KR)
H2L ENGINEERING CO LTD (KR)
International Classes:
B01D71/34; B01D69/08; B01D71/40; B01D71/44
Foreign References:
| US20080293886A1 | 2008-11-27 | |||
| US20110198288A1 | 2011-08-18 | |||
| US20110201731A1 | 2011-08-18 | |||
| US20090270543A1 | 2009-10-29 | |||
| US20020147282A1 | 2002-10-10 |
Attorney, Agent or Firm:
HALLA PATENT & LAW FIRM (262 Gangnam-daero,Gangnam-gu, Seoul 135-739, KR)
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