ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,392,088, issued on Aug. 19, was assigned to KEMIRA OYJ (Helsinki).
"Aqueous slurry for a coating colour composition for paper, board or the like" was invented by Jaakko Hiltunen (Espoo, Finland), Annaleena Kokko (Espoo, Finland) and Tapio Honkanen (Espoo, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to an aqueous slurry for manufacture of a coating composition for paper, board or the like, which comprises inorganic mineral particles and a dispersion agent, which is an anionic lignin-carbohydrate complex where lignin and carbohydrate are covalently bound with each other."
The patent was filed on Sept. 16, 2021, under Appl...