ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,538, issued on April 29, was assigned to Evonik Operations GmbH (Essen, Germany).
"Modified pigments and use thereof" was invented by Pedro Cavaleiro (Viersen, Germany), Matthias Bouwman (Singapore), Pascal Senter (Duisburg, Germany) and Philippe Favresse (Ratingen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A modified organic pigment can be used to make a coating composition, such as a paint, a varnish, or a printing ink. The modified organic pigment is obtained by reacting the pigments during the pigment synthesis with one interface-active compound, where the interface-active compound is a compound within a three-dimensional Hansen spac...