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:
Jul. 12, 2022
Filed:
Jul. 27, 2020
Applicant:
NL Chemical Technology, Inc, Mount Prospect, IL (US);
Inventors:
Patricia B. Sun, Palatine, IL (US);
Jane C. Li, Arlington Heights, IL (US);
Lars Kohler, Aurora, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 67/00 (2006.01); B01D 71/56 (2006.01); C01B 32/198 (2017.01); B01D 61/02 (2006.01); C02F 1/44 (2006.01); B01D 69/10 (2006.01); B01D 69/12 (2006.01);
U.S. Cl.
CPC ...
B01D 67/0088 (2013.01); B01D 61/025 (2013.01); B01D 61/027 (2013.01); B01D 67/0006 (2013.01); B01D 69/10 (2013.01); B01D 69/12 (2013.01); B01D 71/56 (2013.01); C01B 32/198 (2017.08); C02F 1/441 (2013.01); C02F 1/442 (2013.01);
Abstract
A water treatment membrane and method of making water treatment membranes includes an interfacially formed polyamide layer residing upon a microporous support film and having a plurality of graphene oxide quantum dots attached to an outer surface of the polyamide layer. The polyamide layer has a permeate flux and a salt rejection performance. The permeate flux is increased by the presence of the graphene oxide quantum dots attached to the outer surface of the polyamide.