US Patent Issued to TONGJI UNIVERSITY on May 13 for "High permeance nanofiltration membrane with nanoring-like structure and preparation method thereof" (Chinese Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,296,300, issued on May 13, was assigned to TONGJI UNIVERSITY (Shanghai).

"High permeance nanofiltration membrane with nanoring-like structure and preparation method thereof" was invented by Ruobin Dai (Shanghai), Zhiwei Wang (Shanghai), Tianlin Wang (Shanghai) and Huimin Zhou (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a high permeance nanofiltration membrane with nanoring-like structure and preparation method thereof. The membrane includes a base film and a polyamide layer having nanoring-like structure morphology on its surface. The method includes: (1) formulating a piperazine nanoemulsion containing a surfactant, vegetable o...