US Patent Issued to Kemira on Feb. 4 for "Process for producing paper or board and a product thereof" (South Korean, German, Spanish Inventors)

ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,215,463, issued on Feb. 4, was assigned to Kemira Oyj (Helsinki).

"Process for producing paper or board and a product thereof" was invented by Diego Salas (Madrid), Jinho Lee (Seoul, South Korea) and Jan-Luiken Hemmes (Bergisch Gladbach, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a process for producing paper or board, comprising slushing a stock of dried fibres in a slushing system comprising a pulper, and/or feeding a stock of never-dried fibres in a fiber line of an integrated paper mill; deflaking and/or refining the stock in a deflaker and/or a refiner, optionally diluting the deflaked and/or refined stock,...