Patents by Inventor Gunter Kohaut

Gunter Kohaut 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).

  • Expandable plastics granular material having at least one orifice
    Patent number: 4621022
    Abstract: The invention relates to a plastics granular material of foamable particles which are derived from a star-shaped basic body with at least three limbs lying in a plane, the particles having at least one orifice. Preferably, these granular material particles are provided with three limbs and each limb is provided with an orifice.Furthermore, the invention has as its subject a packaging material which is obtained by foaming of the said plastics granular material. This packaging material displays a lower bulk density, improved pourability with simultaneously improved packing effect (good packaging properties, large void volume).
    Type: Grant
    Filed: January 28, 1986
    Date of Patent: November 4, 1986
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gunter Kohaut, Werner Weber, Herman Groenendijk, Adrianus C. Poppelaars, Wilhelmus H. J. Janssen
  • Foamable plastics granules and packaging material prepared therefrom
    Patent number: 4599269
    Abstract: The invention relates to plastics granules composed of foamable particles derived from a star-shaped fundamental solid having at least three sides, these particles being a three-dimensionally domed structure by virtue of the sides having paraboloidal curvature, and the surfaces of paraboloidal curvature being staggered in relation to one another. These granule particles preferably have three sides and at least one gap.The invention also relates to a packaging material obtained by foaming the said plastics granules. This packaging material exhibits an improved flow while having at the same time an improved packaging action (good packaging properties and a high void volume).
    Type: Grant
    Filed: December 10, 1984
    Date of Patent: July 8, 1986
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gunter Kohaut, Werner Weber, Herman Groenendijk, Adrianus C. Poppelaars, Wilhelmus H. J. Janssen
  • Free-flowing packing material of foamed plastics particles
    Patent number: 4269895
    Abstract: The invention provides foamed plastics particles having a star-like shape the three legs of which are on the same plane. The ratio of particle thickness to particle height is from 1:2.75 to 1:3.3, that of leg width to particle height is from 1:2.2 to 1:2.5, and the particle height is from 10 to 60 mm. The particles of the invention are suitable as free-flowing packing material having a good flow and simultaneously a good interlocking capacity.
    Type: Grant
    Filed: November 6, 1979
    Date of Patent: May 26, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Herbert Borchert, Walter Albert, Gunter Kohaut, Ulrich Schulte, Bruno Rapp