Patents by Inventor Fritz Stastny

Fritz Stastny 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).

  • Manufacture of soft and resilient foams
    Patent number: 4061701
    Abstract: Composite soft and resilient foams are manufactured by injecting a foamable mixture of polyisocyanates, polyols, water or inert blowing agents and, if appropriate, auxiliaries, under pressure into a mold of which about 90 to 30% of the volume is filled with foamed, soft and resilient particles of olefin polymers of particle size from about 3 to 50 mm and bulk density from 5 to 100 g/l -- these particles being in loose form or fused or stuck together -- and allowing the reaction mixture to foam up.
    Type: Grant
    Filed: December 12, 1973
    Date of Patent: December 6, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Fritz Stastny, Rudolf Gaeth, Udo Haardt, Heinz-Hermann Koerner
  • Manufacture of molded articles of particulate foamed ethylene copolymers
    Patent number: 3950471
    Abstract: Manufacture of molded articles of foamed ethylene copolymers containing, attached to the polymer chain, substituents having Zerewitinoff-active hydrogen atoms, and a binder mix containing isocyanate groups, wherein the components are mixed and the mixture is compressed in molds to from 80 to 20% of its original bulk volume and is cured under pressure.
    Type: Grant
    Filed: May 2, 1974
    Date of Patent: April 13, 1976
    Assignee: Badische Anilin- & Soda-Fabrik Aktiengesellschaft
    Inventors: Fritz Stastny, Hans Georg Trieschmann, Rudolf Gaeth, Udo Haardt