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:
Aug. 03, 2010
Filed:
Aug. 24, 2005
Applicants:
Moo-kyung Moon, Seoul, KR;
Je-kang Yoo, Seoul, KR;
Sun-yong Lee, Seoul, KR;
Youn-kook Kim, Seoul, KR;
Hyoung-jun Ahn, Seoul, KR;
Doo-won Han, Seoul, KR;
Inventors:
Moo-Kyung Moon, Seoul, KR;
Je-Kang Yoo, Seoul, KR;
Sun-Yong Lee, Seoul, KR;
Youn-Kook Kim, Seoul, KR;
Hyoung-Jun Ahn, Seoul, KR;
Doo-Won Han, Seoul, KR;
Assignee:
Woongjincoway Co., Ltd., Kongju, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 39/00 (2006.01); B01D 39/14 (2006.01); B01D 61/00 (2006.01); B01D 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An amine aqueous solution for forming an active layer of a polyamide reverse osmosis composite membrane is prepared, which consists of 0.1 through 20 weight % of polyfunctional aromatic amine monomer, 0.1 through 20 weight % of multi-functional tertiary alcohol amine, 0.1 through 20 weight % of strong acid, and 40 through 99.7 weight % of water.