Title:
COMPOSITE MEMBRANE COMPRISING HIGHLY PERMEABLE GUTTER LAYER AND METHOD FOR PREPARING SAME
Document Type and Number:
WIPO Patent Application WO/2022/015088
Kind Code:
A1
Abstract:
The present invention relates to a composite membrane in which a rubbery polymer is introduced into a gutter layer in order to suppress physical aging of a highly permeable composite membrane and, more particularly, to a composite membrane and a method for preparing same, the composite membrane comprising: a porous support layer; a gutter layer formed on the porous support layer; and an active layer formed on the gutter layer, wherein the gutter layer includes a blend of poly(l-trimethylsilyl-l-propyne) (PTMSP) and a rubbery polymer. The composite membrane according to the present invention has remarkably reduced physical aging, which is a phenomenon in which permeance decreases over time, while having high permeance, and thus has excellent commercial applicability.
Inventors:
MOON SU YOUNG (KR)
LEE JONG MYEONG (KR)
CHANG BONG JUN (KR)
KONG CHANG IN (KR)
LEE JAE-HYEOK (KR)
LEE JONG MYEONG (KR)
CHANG BONG JUN (KR)
KONG CHANG IN (KR)
LEE JAE-HYEOK (KR)
Application Number:
PCT/KR2021/009136
Publication Date:
January 20, 2022
Filing Date:
July 15, 2021
Export Citation:
Assignee:
KOREA RES INST CHEMICAL TECH (KR)
International Classes:
B01D69/12; B01D53/22; B01D65/08; B01D69/10; B01D71/24; B01D71/64; B01D71/70
Foreign References:
| US20170216765A1 | 2017-08-03 | |||
| JPH06126140A | 1994-05-10 | |||
| JP2016163871A | 2016-09-08 | |||
| KR20190127544A | 2019-11-13 | |||
| US20120241371A1 | 2012-09-27 |
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
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