ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,087, issued on Nov. 4, was assigned to Phichem Corp. (Shanghai).
"Ultraviolet curing coating composition and use thereof" was invented by Yan Wu (Shanghai) and Jianbin Yu (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "An ultraviolet curing coating composition includes unsaturated carboxylic acid and salts thereof, a compound containing a carbonyl group, a thickener, a photoinitiator, and deionized water. The added value of a fiber attenuation coefficient of the composition is less than 0.02 dB/km. A coating internally cross-linked in a network shape is formed on the surface of an optical fiber by interaction between active groups, and the c...