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:
Feb. 16, 2016
Filed:
Apr. 29, 2014
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Young-Hoon Ko, Daejeon, KR;
Jae-Hong Kim, Daejeon, KR;
Chong-Kyu Shin, Daejeon, KR;
Phill Lee, Daejeon, KR;
Assignee:
LG Chem, Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 71/82 (2006.01); B01D 71/56 (2006.01); B01D 69/02 (2006.01); B01D 69/12 (2006.01); B01D 67/00 (2006.01);
U.S. Cl.
CPC ...
B01D 71/82 (2013.01); B01D 67/0006 (2013.01); B01D 67/0088 (2013.01); B01D 69/02 (2013.01); B01D 69/125 (2013.01); B01D 71/56 (2013.01); B01D 2323/40 (2013.01); B01D 2323/42 (2013.01); B01D 2325/06 (2013.01); B01D 2325/08 (2013.01); B01D 2325/30 (2013.01);
Abstract
A water-treatment separating membrane includes a polyamide active layer formed on a porous support. When the polyamide active layer is dyed using a 5% aqueous solution of Rhodamine B, at least a curve pattern formed by connecting two or more arcs is formed in at least a partial area of the polyamide active layer.