Patents Assigned to Partex Paroc Oy AB
  • Mineral fibre
    Patent number: 6218322
    Abstract: The invention concerns a mineral fibre having the following composition in % by weight: SiO2 50-60, A12O3 1-6, MgO 16-22, CaO 12-18, Na2O+K2O 0-3, Fe2 O31-8, P2O5 1-6, other 0-3, whereby the weight ratio CaO/MgO<1 and the sum CaO+MgO=30-38% by weight.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: April 17, 2001
    Assignee: Partex Paroc Oy AB
    Inventors: Michael Perander, Jan Hakala