Patents by Inventor Georg Vojtechovsky

Georg Vojtechovsky 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).

  • Impact-resistant molding compositions containing polyvinyl chloride
    Patent number: 3960986
    Abstract: Impact-resistant molding compositions consisting essentially ofA. from 20% to 80% by weight of polyvinyl chloride having a K-value of from 55 to 70,B. from 19.5% to 75% by weight of a vinyl chloride grafted copolymer of ethylene and vinyl acetate, said copolymer having from 30% to 55% by weight of vinyl acetate monomer units and a Mooney viscosity of from 20 to 50, said vinyl chloride grafted copolymer having from 5% to 15% by weight of said copolymer and a K-value of from 55 to 70, andC. from 0.5% to 5% by weight of an ethylene/vinyl acetate copolymer having from 60% to 70% by weight of vinyl acetate monomer units.
    Type: Grant
    Filed: July 3, 1974
    Date of Patent: June 1, 1976
    Assignee: Wacker-Chemie GmbH
    Inventors: Friedrich Heichele, Georg Vojtechovsky, Georg Hollenbach, Klaus Adler, Johann Bauer