Patents Assigned to Prestorp AB
  • Patent number: 4940503
    Abstract: This invention relates to a process for the production of a decorative thermosetting laminate with an abrasion-resistant surface layer, which laminate comprises paper sheets impregnated with a thermosetting resin. In the process a continuous paper is impregnated with a noble thermosetting resin such as melamine-formaldehyde resin. At least one side of the paper is coated with 2-20 g/m.sup.2, preferably 3-12 g/m.sup.2 of small, dry and hard particles evenly distributed over the whole wet surface of the resin on the continuous paper. The resin is dried, whereupon the particle coated impregnated paper, so-called prepreg is possibly cut to sheets. At least one such sheet or continuous paper is placed as a surface layer on a base layer and bonded thereto.
    Type: Grant
    Filed: February 17, 1989
    Date of Patent: July 10, 1990
    Assignee: Prestorp AB
    Inventors: Kent O. Lindgren, Sven E. Danielsson, Tommy M. Johnsson, Nils-Joel A. Nilsson