Patents Assigned to Virkensdamm AB
  • Absorption means
    Patent number: 6326070
    Abstract: Sawdust particles are freed from their terpene content and thereafter coated with a Teflon wax. The Teflon coated sawdust is hydrophobic and consequently does not absorb water, while the ability to absorb oil is improved. The Teflon coated sawdust is useful in control of oil spills.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: December 4, 2001
    Assignee: Virkensdamm AB
    Inventor: Bo Södergren