Patents by Inventor Ludwig Stingl

Ludwig Stingl 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).

  • Film produced from a hot melt adhesive
    Patent number: 5883217
    Abstract: The present invention relates to polyurethane hot melt adhesive that are hardened by the action of moisture and which contain at least one reaction product from a component that contains NCO groups and an essentially linear hydroxypolyester, hydroxypolyether, and/or hydroxypolyetherester component. In addition, the present invention relates to a procedure for manufacturing a material that is permeable to water only in vapor form, this being in the form of a fiber material, in particular in the form of a web, which is joined to a polyurethane film, in which the fiber material is coated with a polyurethane material and subsequently the polyurethane material is hardened to form a water-vapor permeable film. The present invention also relates to a material that is permeable to water only in vapor form and which is in the form of a fiber material, in particular in the form of a web, that is bonded to a polyurethane film.
    Type: Grant
    Filed: June 24, 1997
    Date of Patent: March 16, 1999
    Assignee: H. B. Fuller Company
    Inventors: Harald Werenicz, Franz Maitz, Walter Nussbaumer, Ludwig Stingl, Franz Peter-Schmitz
  • Water vapor permeable film
    Patent number: 5851661
    Abstract: The present invention relates to polyurethane hot melt adhesives that are hardened by the action of moisture and which contain at least one reaction product from a component that contains NCO groups and an essentially linear hydroxypolyester, hydroxypolyether, and/or hydroxypolyetherester component. In addition, the present invention relates to a procedure for manufacturing a material that is permeable to water only in vapor form, this being in the form of a fiber material, in particular in the form of a web, which is joined to a polyurethane film, in which the fiber material is coated with a polyurethane material and subsequently the polyurethane material is hardened to form a water-vapor permeable film. The present invention also relates to a material that is permeable to water only in vapor form and which is in the form of a fiber material, in particular in the form of a web, that is bonded to a polyurethane film.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: December 22, 1998
    Assignee: H.B. Fuller Licensing & Financing, Inc.
    Inventors: Harald Werenicz, Franz Maitz, Walter Nussbaumer, Ludwig Stingl, Franz Peter Schmitz
  • Hot melt adhesive
    Patent number: 5660887
    Abstract: The present invention relates to polyurethane hot melt adhesive that are hardened by the action of moisture and which contain at least one reaction product from a component that contains NCO groups and an essentially linear hydroxypolyester, hydroxypolyether, and/or hydroxypolyetherester component. In addition, the present invention relates to a procedure for manufacturing a material that is permeable to water only in vapor form, this being in the form of a fibre material, in particular in the form of a web, which is joined to a polyurethane film, in which the fibre material is coated with a polyurethane material and subsequently the polyurethane material is hardened to form a water-vapor permeable film. The present invention also relates to a material that is permeable to water only in vapor form and which is in the form of a fibre material, in particular in the form of a web, that is bonded to a polyurethane film.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: August 26, 1997
    Assignee: H. B. Fuller Licensing & Financing, Inc.
    Inventors: Harald Werenicz, Franz Maitz, Walter Nussbaumer, Ludwig Stingl, Franz Peter Schmitz
  • Fusion adhesive
    Patent number: 5508371
    Abstract: The present invention relates to polyurethane fusion adhesives that are hardened by the action of moisture and which contain at least one reaction product from a component that contains NCO groups and an essentially linear hydroxypolyester, hydroxypolyether, and/or hydroxypolyetherester component. In addition, the present invention relates to a procedure for manufacturing a material that is permeable to water only in vapor form, this being in the form of a fiber material, in particular in the form of a web, which is joined to a polyurethane film, in which the fiber material is coated with a polyurethane material and subsequently the polyurethane material is hardened to form a water-vapor permeable film. The present invention also relates to a material that is permeable to water only in vapor form and which is in the form of a fiber material, in particular in the form of a web, that is bonded to a polyurethane film.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: April 16, 1996
    Assignee: H. B. Fuller Licensing & Financing, Inc.
    Inventors: Harald Werenicz, Franz Maitz, Walter Nussbaumer, Ludwig Stingl, Franz P. Schmitz