US Patent Issued to POSCO on Jan. 13 for "Surface treatment composition for ternary hot-dip galvannealed steel sheet, surface-treated ternary hot-dip galvannealed steel sheet using same, and preparation method thereof" (South Korean Inventors)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,734, issued on Jan. 13, was assigned to POSCO Co. LTD (Pohang-si, South Korea).

"Surface treatment composition for ternary hot-dip galvannealed steel sheet, surface-treated ternary hot-dip galvannealed steel sheet using same, and preparation method thereof" was invented by Soo-Hyoun Cho (Gwangyang-si, South Korea) and Won-Ho Son (Pohang-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure is to provide a surface treatment composition that may impart excellent corrosion resistance, blackening resistance, and alkali resistance, and an intrinsic surface color property to a ternary hot-dip galvannealed steel sheet. The p...