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.

Date of Patent:
Oct. 08, 2024

Filed:

Mar. 13, 2024
Applicant:

King Fahd University of Petroleum and Minerals, Dhahran, SA;

Inventor:

Isam Hassan Aljundi, Dhahran, SA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 69/12 (2006.01); B01D 71/44 (2006.01); B01D 71/62 (2006.01); B01D 71/68 (2006.01); C02F 1/26 (2023.01); C02F 103/08 (2006.01);
U.S. Cl.
CPC ...
B01D 69/125 (2013.01); B01D 69/12 (2013.01); B01D 71/441 (2022.08); B01D 71/62 (2013.01); B01D 71/68 (2013.01); C02F 1/265 (2013.01); B01D 2323/40 (2013.01); B01D 2325/0283 (2022.08); C02F 2103/08 (2013.01);
Abstract

A multi-layer membrane which has a mixed polyamide selective layer supported on a porous polysulfone layer. The mixed polyamide selective layer includes reacted units of a polyfunctional acyl halide (e.g. trimesoyl chloride) and a diamine mixture containing 4,7,10-trioxa-1,13-tridecanediamine and a cyclic diamine (e.g. piperazine). Methods of fabricating the multi-layer membrane via techniques such as phase inversion and interfacial polymerization are described. The inventive membrane is evaluated on its water flux and salt rejection (e.g. sulfate and chloride salts) capabilities. A water desalination system containing the multi-layer membrane(s) is also provided.


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Aljundi, Isam. (2024). Polysulfone-supported separation membrane (U.S. Patent No. 12109538). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12109538

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