US Patent Issued to KAO on Aug. 19 for "Aqueous oxidative composition comprising orthodiphenols or imidazolidin-2,4-dione derivatives" (German Inventors)

ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,390,403, issued on Aug. 19, was assigned to KAO Corp. (Tokyo).

"Aqueous oxidative composition comprising orthodiphenols or imidazolidin-2,4-dione derivatives" was invented by Bernd Nocker (Darmstadt, Germany), Qi Uellner (Darmstadt, Germany) and Steven Breakspear (Darmstadt, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A composition having a pH in a range of 1 to 6, containing hydrogen peroxide, and one or more compounds selected from orthodiphenols, imidazolidin-2,4-diones, and salts thereof. The orthodiphenols have the following general structure:where R1, R2, and R3 are independently selected from H, OH, halogen, C1-C12 linear or branched a...