Invention Grant
- Patent Title: Hollow fiber membrane and manufacturing method thereof
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Application No.: US16766656Application Date: 2018-11-22
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Publication No.: US11406942B2Publication Date: 2022-08-09
- Inventor: Bum Jin Park , Dong Jun Im , Chang Min Seo
- Applicant: LOTTE CHEMICAL CORPORATION
- Applicant Address: KR Seoul
- Assignee: LOTTE CHEMICAL CORPORATION
- Current Assignee: LOTTE CHEMICAL CORPORATION
- Current Assignee Address: KR Seoul
- Agency: Lewis Roca Rothgerber Christie LLP
- Priority: KR10-2017-0158868 20171124
- International Application: PCT/KR2018/014428 WO 20181122
- International Announcement: WO2019/103481 WO 20190531
- Main IPC: B01D69/08
- IPC: B01D69/08 ; B01D69/02 ; B01D71/34

Abstract:
A hollow fiber membrane of the present invention is a hollow fiber membrane having an outer surface and an inner surface, wherein the inner surface has a zebra stripe pattern in which dense portions and porous portions are alternately formed in the longitudinal direction, and the outer surface has a maximum pore size of about 1 μm or less (≤about 1 μm), and wherein the hollow fiber membrane has a water permeability (flux) of ≥about 1,300 LMH/bar to ≤about 5,000 LMH/bar.
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