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:
Jun. 02, 2026
Filed:
Apr. 25, 2025
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Khalid Rashed Alhooshani, Dhahran, SA;
Shehzada Muhammad Sajid Jillani, Dhahran, SA;
Elham Saud Alkhulaify, Dhahran, SA;
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Abstract
A membrane includes a base layer and a support layer formed on the base layer. The support layer includes polysulfone (Psf), polyvinylpyrrolidone (PVP), and at least one diamine selected from the group consisting of 2-chloro-4,6-diamino-1,3,5-triazine, benzoguanamine, and acetoguanamine. The membrane further includes a polyamide layer formed on the support layer. The polyamide layer includes repeating units derived from piperazine and repeating units derived from trimesoylchloride. The polyamide is covalently bonded to at least some molecules of the at least one diamine in the support layer via an amide bond.