US Patent Issued to WestRock MWV on June 17 for "Method for manufacturing bleached pulp from a feedstock comprising recycled paper" (Georgia, Virginia, South Carolina Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,462, issued on June 17, was assigned to WestRock MWV LLC (Atlanta).

"Method for manufacturing bleached pulp from a feedstock comprising recycled paper" was invented by Peter W. Hart (Atlanta), John D. Dejarnette (Henrico, Va.), Fritz G. Paulsen (Summerville, S.C.) and Ashok K. Ghosh (Henrico, Va.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing bleached pulp from a feedstock that includes recycled paper. The method includes steps of: (1) impregnating the feedstock with cooking liquor to yield an impregnated material having a liquor-to-fiber mass ratio of at most about 4:1; (2) cooking the impregnated material to remove at le...