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:
Apr. 02, 2024
Filed:
Jan. 18, 2019
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Hyelim Kang, Daejeon, KR;
Danbi Han, Daejeon, KR;
Eun Woo Cho, Daejeon, KR;
Hyungjoon Jeon, Daejeon, KR;
Chong Kyu Shin, Daejeon, KR;
Lakwon Choi, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 67/00 (2006.01); B01D 71/56 (2006.01); C02F 1/44 (2023.01);
U.S. Cl.
CPC ...
B01D 67/0088 (2013.01); B01D 71/56 (2013.01); C02F 1/44 (2013.01);
Abstract
Provided is a method for manufacturing a water-treatment membrane, the method including bringing an aqueous solution including free chlorine and a halogen ion into contact with a polyamide active layer, wherein the free chlorine is present in an amount from 150 ppm to 400 ppm and the halogen ion is present in an amount from 150 ppm to 400 ppm based on the aqueous solution, and a water-treatment membrane manufactured using the same.