Patents Assigned to Noranda Forest Inc.
  • Patent number: 6153050
    Abstract: A method for controlling the addition of bleaching/delignifying reagents to obtain a substantially constant percentage of pulp delignification across the first bleaching stage. The present method allows substantial improvements in bleached pulp quality through proper addition of the bleaching/delignifying reagent flow rate. The efficiency of the bleaching/delignifying reagent is therefore greatly improved. Further, reduction of pulp off-grades, equipment corrosion and effluent loading are additional beneficial effects resulting from the present method.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: November 28, 2000
    Assignee: Noranda Forest Inc.
    Inventors: Martin Savoie, Patrick Jean-Claude Tessier, Martin William Pudlas
  • Patent number: 6098679
    Abstract: The present invention is concerned with a method for obtaining a wood panel, preferably an OSB panel, with significantly reduced thickness swelling properties when exposed to or contacted with moisture or water. The novel dimensionally stable panels are obtained by an alternate vacuum--steam injection method. The method is an after-fabrication, or post-treatment method, and involves one or more cycles of applying a vacuum followed by injection of hot steam in a sealed treatment chamber.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: August 8, 2000
    Assignee: Noranda Forest Inc.
    Inventors: Andrew Go, Wallace S. Pettersen, Alain Laplante