The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 2019
Filed:
Sep. 27, 2017
Applicant:
Lotte Chemical Corporation, Seoul, KR;
Inventors:
Assignee:
LOTTE CHEMICAL CORPORATION, Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 69/08 (2006.01); B01D 67/00 (2006.01); B01D 69/02 (2006.01); B01D 71/34 (2006.01); C02F 1/44 (2006.01);
U.S. Cl.
CPC ...
B01D 69/081 (2013.01); B01D 67/0011 (2013.01); B01D 67/0027 (2013.01); B01D 69/02 (2013.01); B01D 69/08 (2013.01); B01D 69/087 (2013.01); B01D 71/34 (2013.01); B01D 67/003 (2013.01); B01D 67/0016 (2013.01); B01D 2323/08 (2013.01); B01D 2325/02 (2013.01); B01D 2325/022 (2013.01); B01D 2325/023 (2013.01); B01D 2325/08 (2013.01); B01D 2325/20 (2013.01); B01D 2325/34 (2013.01); C02F 1/444 (2013.01);
Abstract
A hollow fiber membrane and a method of preparing the same. The hollow fiber membrane has an inner surface and an outer surface, wherein the inner surface has a zebra-stripe pattern in which a dense portion and a porous portion are alternately formed in a longitudinal direction of the hollow fiber membrane.