ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,441,849, issued on Oct. 14, was assigned to Suncoal Industries GmbH (Ludwigsfelde, Germany).
"Method for producing a crosslinked lignin with a highly specified surface area, crosslinked lignin, and technical rubber articles or tires comprising crosslinked lignin" was invented by Geertje Dautzenberg (Potsdam, Germany), Jacob Podschun (Berlin) and Tobias Wittmann (Berlin).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method for producing a crosslinked lignin in particle form using a hydrothermal treatment of a liquid, which is made of black liquor, contains lignin and a crosslinker or a precursor thereof, and has an electrical a...