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:
Oct. 30, 2018
Filed:
Aug. 01, 2014
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Youngju Lee, Daejeon, KR;
Chong Kyu Shin, Daejeon, KR;
Phill Lee, Daejeon, KR;
Byungho Jeon, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 71/56 (2006.01); B01D 67/00 (2006.01); B01D 69/02 (2006.01); B01D 69/12 (2006.01); B01D 71/28 (2006.01);
U.S. Cl.
CPC ...
B01D 71/56 (2013.01); B01D 67/0093 (2013.01); B01D 69/02 (2013.01); B01D 69/12 (2013.01); B01D 71/28 (2013.01); B01D 2325/04 (2013.01); B01D 2325/28 (2013.01);
Abstract
The present invention relates to a water treatment separation membrane having improved durability and including a porous support; a polyamide active layer formed on the porous support; and a protective layer formed on the polyamide active layer and including polyvinyl pyrrolidone, wherein a thickness of the protective layer is 0.5 nm to 1000 nm, and a method for manufacturing the same.