ALEXANDRIA, Va., April 15 -- United States Patent no. 12,600,805, issued on April 14, was assigned to AGC INC. (Tokyo).

"Fluorine-containing alkyl ammonium borate compound and method for producing same" was invented by Takuya Fujimoto (Tokyo) and Yosuke Ochi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compound may be useful as a co-catalyst for polymerizing olefin, diene, and acetylene. A fluorine-containing alkylammonium borate compound of formula (1):wherein each symbol is as defined in the specification, may be highly active and useful as a co-catalyst used for the polymerization reactions of olefin, diene, and acetylene, compositions containing same. Production methods of such a fluorine-cont...