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:
Jun. 13, 2017
Filed:
Dec. 27, 2013
Applicant:
Cheil Industries Inc., Gumi-si, Gyeongsangbuk-do, KR;
Inventors:
Gyu Hong Min, Uiwang-si, KR;
Fufang Zha, Uiwang-si, KR;
Assignees:
Lotte Chemical Corporation, Seoul, KR;
Lotte Advanced Materials Co., Ltd., Yeosu-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 63/04 (2006.01); B01D 69/08 (2006.01); C02F 1/44 (2006.01); B01D 63/02 (2006.01);
U.S. Cl.
CPC ...
B01D 63/04 (2013.01); B01D 63/02 (2013.01); B01D 69/081 (2013.01); C02F 1/44 (2013.01); B01D 2315/06 (2013.01); B01D 2315/08 (2013.01);
Abstract
A hollow fiber membrane module including at least two types of hollow fiber membranes having different inner diameters, comprising first hollow fiber membranes and second hollow fiber membranes, and the equation |P−P|≧|P−P| where Pis an initial pressure applied to upper open ends of the first and second hollow fiber membranes, and Pand Pare respective pressures at lower open ends of the first and second hollow fiber membranes.