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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.:

US 9370751 B1

PDFFull Text
Date of Patent:
Jun. 21, 2016

Filed:

Apr. 24, 2014

Water-treatment separating membrane of high flux having good chlorine resistance

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:

Dentons US LLP

Primary Examiner:

Heidi Kelley

Assistant Examiner:

Eric McCullough

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 on999 a porous support. The ratio of a maximum value with respect to a minimum value of a ratio of a peak height of a C═O double bond of a carboxyl group (—COOH) with respect to a peak height of a C═O double bond combined with an amide group (—CONH—) is from 1.2 to 4, when measured after acid treating the polyamide active layer and by using a Fourier transform infrared spectrometer (FTIR).

Find Patent Forward Citations

Ko, Young-Hoon. (2016). Water-treatment separating membrane of high flux having good chlorine resistance (U.S. Patent No. 9370751). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9370751

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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