US Patent Issued to NIPPON PAINT SURF CHEMICALS on May 5 for "Chemical conversion coating agent, surface-treated metal and surface treatment method" (Japanese Inventors)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,159, issued on May 5, was assigned to NIPPON PAINT SURF CHEMICALS Co. LTD. (Tokyo).

"Chemical conversion coating agent, surface-treated metal and surface treatment method" was invented by Takayuki Ueno (Tokyo) and Yu Koganezawa (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A chemical conversion coating agent that enables chemical conversion coating by which favorable corrosion resistance is obtained after coating. A chemical conversion coating agent which contains (A) at least one metal component that is selected from the group consisting of zirconium, titanium and hafnium, (B) fluorine and (C) an allylamine-diallylamine copolymer, wherein the...