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:
Dec. 06, 2022
Filed:
Jul. 09, 2019
Lg Chem, Ltd., Seoul, KR;
Eunkyoung Byun, Daejeon, KR;
Youngju Lee, Daejeon, KR;
Hyungjoon Jeon, Daejeon, KR;
Young Jun Shin, Daejeon, KR;
Chong Kyu Shin, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
Provided is a water-treatment membrane including a porous support; and a polyamide active layer including chlorine on a surface thereof, wherein CIE L*a*b* color coordinate values after storing for 30 days or longer at 25° C. to 80° C. satisfy Equation 1 to Equation 3:91<*<97  <Equation 1>−1.5<*<1.5  <Equation 2>−1.5<*<8  <Equation 3> of the present disclosure, a water-treatment module including the same, and a method for manufacturing the same.