ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,441,847, issued on Oct. 14, was assigned to Henkel AG & Co. KGaA (Duesseldorf, Germany).
"Bi-functionalized polysiloxane brush copolymers" was invented by Andrea Gutacker (Langenfeld, Germany), Ligang Zhao (Duesseldorf, Germany), Johann Klein (Duesseldorf, Germany), Esteban Mejia (Rostock, Germany) and Annika Dietrich (Rostock, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a bi-functionalized polysiloxane brush copolymer comprising at least one hydroxyl-terminated polyalkyleneglycol side chain and at least one onium-functionalized side chain as defined herein, and a method for preparing the bi-functionalized polysiloxan...