Patents by Inventor John E. Mahn

John E. Mahn 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: 4423106
    Abstract: A laminated material is formed of a layer of polyurethane or polyether and a layer of extruded polyester. The polyester adhesive layer, which may contain five to fifteen percent by weight of polyurethane homogeneously mixed therein, is bonded to the layer of polyurethane or polyether under pressure at a sufficiently high temperature to permit an even viscous molecular flow between adjacent surfaces of the layers. When the layer is polyurethane, the temperature is above the softening point of polyurethane so that it is high enough to remove at least enough of the toluene solvent from the layer of polyurethane so that curling is prevented. When the laminated material is applied to a material with sufficient pressure and heated sufficiently that the layer of polyester becomes adhesive, the laminated material adheres to the material against which the layer of polyester is pressed.
    Type: Grant
    Filed: April 23, 1982
    Date of Patent: December 27, 1983
    Inventor: John E. Mahn
  • Patent number: 4390387
    Abstract: A flocked material is formed of a first layer of a thermoset acrylic copolymer cross-linking water base adhesive having polyester or rayon flock fibers extending from one surface and a second layer of an amorphous thermoplastic polymer adhesive bonded to the other surface. The polymer adhesive is a homogeneous mixture of polyester and polyurethane or of polyamide and polyurethane. When the flocked material is applied to a material with sufficient pressure and heated sufficiently that the layer of polymer adhesive becomes adhesive, the flocked material adheres to the material against which the layer of polymer adhesive is pressed. Thus, the flocked material has particular utility as a letter, numeral, design, or silk screen print product for a sport uniform or wearing apparel, for example, of any material.
    Type: Grant
    Filed: June 16, 1981
    Date of Patent: June 28, 1983
    Inventor: John E. Mahn
  • Patent number: 4269885
    Abstract: A laminated material is formed of a layer of polyurethane or polyether and a layer of extruded polyester. The polyester adhesive layer, which may contain five to fifteen percent by weight of polyurethane homogeneously mixed therein, is bonded to the layer of polyurethane or polyether under pressure at a sufficiently high temperature to permit an even viscous molecular flow between adjacent surfaces of the layers. When the layer is polyurethane, the temperature is above the softening point of polyurethane so that it is high enough to remove at least enough of the toluene solvent from the layer of polyurethane so that curling is prevented. When the laminated material is applied to a material with sufficient pressure and heated sufficiently that the layer of polyester becomes adhesive, the laminated material adheres to the material against which the layer of polyester is pressed.
    Type: Grant
    Filed: January 26, 1979
    Date of Patent: May 26, 1981
    Inventor: John E. Mahn