US Patent Issued to DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES on Sept. 8 for "Preparation process for composite membrane for fuel cells" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,731,805, issued on Sept. 8, was assigned to DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES (Dalian, China).

"Preparation process for composite membrane for fuel cells" was invented by Jinkai Hao (Dalian, China), Hongjie Zhang (Dalian, China) and Zhigang Shao (Dalian, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A preparation process of composite membrane for fuel cells uses an expanded polytetrafluoroethylene microporous base membrane as a skeleton. The base membrane is subjected to an impregnation treatment of mixed solutions having different concentrations from low to high. Specifically, the treatment tank I is provide with ...