US Patent Issued on Sept. 8 for "Method of preparing reverse osmosis membrane with charged hydrogel and polyamide double network" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,388, issued on Sept. 8.

"Method of preparing reverse osmosis membrane with charged hydrogel and polyamide double network" was invented by Panpan Wang (Harbin, China), Shiyi Qiu (Harbin, China), Zhilin Zhang (Harbin, China), Jun Ma (Harbin, China), Mansheng Chen (Harbin, China) and Jiaying Yan (Harbin, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of preparing reverse osmosis membrane with double network of charged hydrogel and polyamide includes the steps of: (a) preparing an aqueous phase polymer solution containing m-phenylenediamine, polymer monomer with ionic group and crosslinking agent, and an organic phase polymer solution con...