Patents by Inventor Kurt-Rainer Stahlke

Kurt-Rainer Stahlke 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).

  • Energy absorber for absorbing impact energy
    Patent number: 6730386
    Abstract: An extruded polycarbonate article suitable as an energy absorber is disclosed. The article includes a plurality of honeycomb chambers that are aligned substantially in the same direction, extend in the direction of the extrusion and are disposed adjacent to one another. A method of using the article entails aligning the honeycomb chambers in a direction parallel to the direction of the impact energy.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: May 4, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Kurt-Rainer Stahlke, Roland Brambrink
  • Use of polyarylene sulphides for the production of a structural foam resistant to high temperatures, process for the preparation of this foam, and mouldings obtainable by this process
    Patent number: 5126380
    Abstract: The invention relates to the use of polyarylene sulphides (PAS), preferably polyphenylene sulphide (PPS) for the preparation of a structural foam, a process for the production of this foam, and mouldings obtainable by this process.
    Type: Grant
    Filed: October 28, 1991
    Date of Patent: June 30, 1992
    Inventors: Kurt-Rainer Stahlke, William C. Bushong
  • Two-component injection molding with polyarylene sulfides
    Patent number: 5114791
    Abstract: The invention relates to two-component injection-molded articles in which polyarylene sulfides (PAS), preferably polyphenylene sulfide (PPS), are present as at least one component and to a process for their production.
    Type: Grant
    Filed: February 2, 1989
    Date of Patent: May 19, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Kurt-Rainer Stahlke, Klaus Reinking, Erhard Tresper, Klaus Kraft, Axel Kaminski
  • Use of polyarylene sulphides for the production of a structural foam resistant to high temperatures, process for the preparation of this foam, and moldings obtainable by this process
    Patent number: 5114983
    Abstract: The invention relates to the use of polyarylene sulphides (PAS), preferably polyphenylene sulphide (PPS) for the preparation of a structrual foam, a process for the production of this foam, and moldings obtainable by this process.
    Type: Grant
    Filed: June 26, 1990
    Date of Patent: May 19, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Kurt-Rainer Stahlke, William C. Bushong
  • Synthetic resin bodies with improved resistance to weathering
    Patent number: 5102740
    Abstract: This invention relates to synthetic resin bodies of thermoplastic polyarylene sulphides and/or of thermoplastic polycarbonates coated with zinc sulphide (ZnS).
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: April 7, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Siegfried Thurm, Kurt-Rainer Stahlke, Reimer Holm, Klaus Sommer
  • Dihydrobenzothiazine compounds and the preparation thereof
    Patent number: 4420613
    Abstract: The present invention relates to new dihydrobenzothiazine compounds, to the production thereof and to the use thereof as stabilizers and co-stabilizers against the oxidative and/or thermal degradation of organic polymers.
    Type: Grant
    Filed: March 17, 1982
    Date of Patent: December 13, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Paul Uhrhan, Edmund Krauthausen, Kurt-Rainer Stahlke, Gerwolf Quaas, Lothar Ruetz
  • Light-sensitive material containing a dye-forming combination of a heterocyclic compound and a cyclic dihalodicarbonyl compound in a polymeric binder
    Patent number: 4030926
    Abstract: A storage medium for optical data recording comprises a dye-forming combination which on exposure to light within a first range of wavelengths reacts irreversibly to form a dye, but is substantially insensitive to light within a second range of wavelengths which is capable of energizing the dye to produce luminescence. The dye-forming combination consists of a heterocyclic compound of the formula I and of a cyclic dihalodicarbonyl compound of the formula II ##STR1## The symbols are defined in the specification. An example of formula I is benzofuran and an example of formula II is dibromomaleic anhydride.
    Type: Grant
    Filed: July 7, 1975
    Date of Patent: June 21, 1977
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Kurt-Rainer Stahlke, Werner Krafft, Rudolf Meyer, Hans Jurgen Rosenkranz