Patents by Inventor Tommy M. Johnsson

Tommy M. Johnsson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 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