Patents by Inventor Rezso Rusznyak

Rezso Rusznyak 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).

  • Process for the production of water vapor-permeable sheet materials
    Patent number: 4336300
    Abstract: The specification describes water vapor-permeability sheet materials, particularly useful in the footwear industry. The production of sheet materials which are water permeable, highly resistant to wear, water resistant and mechanically stressable occurs by mechanically foaming a polymeric dispersion, the mechanical foaming being carried out in the presence of a surfactant, the density of the film being adjusted by the mechanical foaming to 0.55-0.85 g/cm.sup.3, gelling the foamed dispersion at a temperature of 120.degree. to 220.degree. C., for at most 10 minutes, and finishing the sheet material by spraying and/or rastering.
    Type: Grant
    Filed: April 30, 1980
    Date of Patent: June 22, 1982
    Assignees: Bor-, Mubor-es Cipoipari Kutato Intezet, Graboplast Gyori Pamutszovo-es Muborgyar
    Inventors: Ivan Lorant, Imre Csernyanszky, Gyula Murlasits, Rezso Rusznyak, Paula Szabo nee Paulyuk