Patents by Inventor Helmut Payer

Helmut Payer 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).

  • Method for impregnating a heated, flat, fibrous substrate with synthetic resin
    Patent number: 5436031
    Abstract: A method for impregnating a flat, fibrous substrate penetrated by a low viscosity, fluid synthetic resin, the substrate web 1 being preheated by known device 2 and thereupon being made to pass over a friction roller 3 which is heated where called for and which is uniformly wetted at its surface 6 with the low viscosity, aqueous synthetic resin solution based on an aminoplastic resin, substantially a melamine resin 5 or based on a phenolformaldehyde resin 5' present in a bath, the low viscosity, aqueous synthetic resin solution being uniformly heated and at least part of it penetrating the surface of the substrate web 1, whereupon the substrate web 1 loaded with synthetic resin is fully impregnated in the bath 4.
    Type: Grant
    Filed: December 23, 1993
    Date of Patent: July 25, 1995
    Assignee: Isovolta Osterreichische Isolierstoffwerke Aktiengesellschaft
    Inventor: Helmut Payer