1
Bruce F Griggs, Thomas P Gandek, Michael A Pikulin, Allen Rosen: Environmentally improved process for bleaching lignocellulosic materials with ozone. Union Camp Patent Holding, Pennie & Edmonds, November 17, 1992: US05164043 (22 worldwide citation)

A process for delignifying and bleaching a lignocellulosic pulp without the use of elemental chlorine by partially delignifying the pulp to a K No. of about 10 or less and a viscosity of greater than about 13 cps; and further delignifying the partially delignified pulp with an effective amount of oz ...


2
Bruce F Griggs, Thomas P Gandek, Michael A Pikulin, Allen Rosen: Environmentally improved process for bleaching lignocellulosic materials with ozone. Union Camp Patent Holding, Pennie & Edmonds, November 17, 1992: US05164044 (11 worldwide citation)

A process for delignifying and bleaching a lignocellulosic pulp without the use of elemental chlorine by partially delignifying the pulp to a K No. of about 10 or less and a viscosity of greater than about 13 cps; and further delignifying the partially delignified pulp with an effective amount of oz ...