US Patent Issued to HENKEL on Dec. 2 for "Method for dyeing keratinous material, comprising the use of an organosilicon compound, an effect pigment and a post-treatment agent" (German Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,485,077, issued on Dec. 2, was assigned to HENKEL AG & Co. KGAA (Duesseldorf, Germany).

"Method for dyeing keratinous material, comprising the use of an organosilicon compound, an effect pigment and a post-treatment agent" was invented by Rene Krohn (Norderstedt, Germany), Thomas Hippe (Appen, Germany), Stefan Hoepfner (Hamburg, Germany) and Jessica Brender (Hamburg, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for dyeing keratinous material, in particular human hair, is disclosed. The process comprises applying to the keratinous material an agent (a) and an agent (b). The agent (a) comprises: (a1) at least one organosilicon compound;...