US Patent Issued to USA Fortescue IP on July 15 for "Polynorbornene-based ion exchange membranes derived from phosphonated polymer and methods of making same" (Delaware, Virginia Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,357,983, issued on July 15, was assigned to USA Fortescue IP INC. (Wilmington, Del.).

"Polynorbornene-based ion exchange membranes derived from phosphonated polymer and methods of making same" was invented by Mengjie Chen (Seaford, Del.), Qiuying Zhang (Fairfax, Va.), Bamdad Bahar (Georgetown, Del.), Xuzhe Cao (Camden, Del.) and Monica Joan McNicol (Camden, Del.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A proton exchange polymer comprises a polynorbornene copolymer with hydrophobic and hydrophilic blocks that can be phosphonated to produce phosphonic acid functional groups for proton exchange. Also, the polymer may be crosslinked to form quaternary...