US Patent Issued to Resonac on Dec. 2 for "Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,357, issued on Dec. 2, was assigned to Resonac Corp. (Tokyo).

"Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium" was invented by Yutaka Tanji (Tokyo) and Daisuke Yagyu (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fluorine-containing ether compound represented by the following formula. R1-CH2-R2[-CH2-R3-CH2-R2]x-CH2-R4 (x is 1 or 2, R2 is a perfluoropolyether chain, R3 is represented by Formula (2), and R1 and R4 are each a terminal group having 1 to 50 carbon atoms, which has 1 to 4 polar groups, and in Formula (2), a1 and a2 are each 0 to 5, b is 0 or 1, and Y is an acyclic divalen...