Patents by Inventor Leo Unterstenhoefer, deceased

Leo Unterstenhoefer, deceased 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).

  • Molding compositions based on bitumen and olefin copolymers
    Patent number: 4026854
    Abstract: Non-tacky molding compositions containing mixtures of bitumen, olefin copolymers and substituted aromatic compounds having at least one functional group, such as dimethyl terephthalate and phthalonitrile. Molding compositions comprising the mixtures of the invention are suitable for use as anticorrosive coatings for the manufacture of elastic non-corrosive bandages for pipelines or for the manufacture of roofing materials.
    Type: Grant
    Filed: June 6, 1975
    Date of Patent: May 31, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Oskar Buechner, Leo Unterstenhoefer, deceased, Heinz Mueller-Tamm, Wolfram Rainer Kroll