Patents by Inventor Hans-Georg Gehrke

Hans-Georg Gehrke 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).

  • Patent number: 7144540
    Abstract: A method of making a plastic molding is disclosed. The multi-step method entails applying a metallic layer 20 to 150 nm thick to a translucent plastic film having a thickness of 50 to 750 ?m, removing part of the metallic layer, and applying to the metallized side of the film an adhesive layer 5 to 50 ?m in thickness to obtain a product, and injection molding the product with a translucent thermoplastic. The plastic molding thus made is suitable for the preparation of keys, fittings, trim strips, reflectors, keyboards, casings, shields, advertising panels and packaging items and identification cards.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: December 5, 2006
    Assignee: Bayer Aktiengesellschaft
    Inventors: Georgios Tziovaras, Dirk Pophusen, Hans-Georg Gehrke
  • Publication number: 20030178739
    Abstract: A method of making a plastic molding is disclosed. The multi-step method entails applying a metallic layer 20 to 150 nm thick to a translucent plastic film having a thickness of 50 to 750 &mgr;m, removing part of the metallic layer, and applying to the metallized side of the film an adhesive layer 5 to 50 &mgr;m in thickness to obtain a product, and injection molding the product with a translucent thermoplastic. The plastic molding thus made is suitable for the preparation of keys, fittings, trim strips, reflectors, keyboards, casings, shields, advertising panels and packaging items and identification cards.
    Type: Application
    Filed: March 14, 2003
    Publication date: September 25, 2003
    Inventors: Georgios Tziovaras, Dirk Pophusen, Hans-Georg Gehrke
  • Patent number: 6391458
    Abstract: A photovoltaic module comprising at least one multi-layered composite polymeric body is described. The composite body contains at least one layer of polycarbonate, and at least one layer of a fluorine-containing polymer. At least one multi-layer composite body of the module has printing thereon, and each multi-layer composite body of the module has a thickness of at least 1 mm.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: May 21, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Zander, Hans-Ulrich Fugger, RĂ¼diger Gorny, Hans-Georg Gehrke
  • Patent number: 5334692
    Abstract: New, highly branched polyphosphonates which have a greatly improved flame retardant action compared with known polyphosphonates which are suitable as additives for plastics. In addition the new polyphosphonates may be incorporated in plastics as stabilizers with excellent migration properties.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: August 2, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernhard Hess, Wolfgang Schulz-Schlitte, Jurgen Kirsch, Dieter Freitag, Uwe Arndt, Hans-Georg Gehrke, Klaus Zander
  • Patent number: 5298546
    Abstract: Thermoplastic molding compounds of polyalkylene terephthalate, special barium sulfate, particulate graft polymers and, optionally, reinforcing materials are distinguished from known, elastomer-modified polyalkylene terephthalates, particularly polyethylene terephthalates, by improved heat resistance and toughness.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: March 29, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jurgen Kirsch, Karl-Erwin Piejko, Christian Lindner, Karsten-Josef Idel, Hans-Georg Gehrke
  • Patent number: 5231124
    Abstract: Thermoplastic molding composition based on polyalkylene terephthalate, aromatic polycarbonate and, optionally, rubber-elastic polymer, which are provided with special phosphorus stabilizers, show good paintability and paint adhesion and, even after painting, show favorable low-temperature toughness and heat resistance.
    Type: Grant
    Filed: November 25, 1990
    Date of Patent: July 27, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karsten-Josef Idel, Jurgen Kirsch, Friedemann Paul, Lothar Meier, Hans-Georg Gehrke
  • Patent number: 4515918
    Abstract: Moulding compositions of polycarbonate, polyalkylene terephthalate and, optionally, polymer having a glass transition temperature below -20.degree. C. may be processed to form particularly low-distortion mouldings when the polycarbonate consists at least partly of o,o,o',o'-tetramethyl-besphenol-polycarbonate.
    Type: Grant
    Filed: April 20, 1984
    Date of Patent: May 7, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Nouvertne, Volker Serini, Dieter Neuray, Rudolf Binsack, Hans-Georg Gehrke, Dieter Rempel, Sivara Krishnai