ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,524, issued on Sept. 30, was assigned to DAIKIN INDUSTRIES LTD. (Osaka, Japan).
"Fluorine-containing copolymer" was invented by Shouta Shibutani (Osaka, Japan), Shingo Okuno (Osaka, Japan) and Masatoshi Nose (Cheonan-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fluorine-containing copolymer represented by formula (1) or (2):where RF1, Xa, Xb, R4, n, Ra and RF2 are as defined herein. Also disclosed is a surface-treating agent containing the fluorine-containing copolymer, a curable composition containing the fluorine-containing copolymer or surface-treating agent and a matrix forming composition, a film formed from the surface-tre...