Patents Assigned to NOW - New Option Wood
  • Method for treating wood by impregnation
    Patent number: 6248402
    Abstract: A method for treating wood in which the wood to be treated is placed in a chamber in which a vacuum is produced, where the chamber is filled with a hardening product, in particular a monomer, so as to impregnate the wood by causing the product to penetrate the space between its fibers, where the product is hardened, in particular by polymerization. This method is characterized in that the wood impregnating operation is preceded by a step of controlled thermal treatment.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: June 19, 2001
    Assignee: NOW - New Option Wood
    Inventors: René Guyonnet, Pierre Gohar