Patents by Inventor Karl-Heinz Aleksander Ostoja Starzewski

Karl-Heinz Aleksander Ostoja Starzewski 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).

  • Process for the preparation of branched low-pressure polyethylene, new low-pressure polyethylenes, and preformed bifunctional catalysts
    Patent number: 5686542
    Abstract: Branched low-pressure polyethylenes are prepared by oligomerization of ethylene on a nickel-containing catalyst and polymerization of the oligomers obtained, if appropriate in the presence of ethylene, on a chromium-containing catalyst.
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: November 11, 1997
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl-Heinz Aleksander Ostoja-Starzewski, Josef Witte, Herbert Bartl, Karl-Heinz Reichert, Georgios Vasiliou
  • Thermostable polarizers
    Patent number: 5676885
    Abstract: Thermostable, flexible polarizers having a polarizing layer of a polyacetylene-containing polymer are obtained if their surfaces are sealed by means of silicate layers.
    Type: Grant
    Filed: August 18, 1995
    Date of Patent: October 14, 1997
    Assignee: Agfa-Gevaert AG
    Inventor: Karl-Heinz Aleksander Ostoja Starzewski
  • Polarizing film
    Patent number: 5670092
    Abstract: A polarizing film of improved blocking position based on polyvinyl alcohol which comprises polyacetylene as the light-polarizing substance is obtained if such a film is heated for at least 10 s at a temperature of between 100.degree. C. and 300.degree. C.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: September 23, 1997
    Assignee: AGFA-Gevaert Aktiengesellschaft
    Inventor: Karl-Heinz Aleksander Ostoja Starzewski
  • Polyacetylene-containing mouldings
    Patent number: 5650227
    Abstract: Mouldings made from polyacetylene-containing polymer products comprising poly-acetylene and a polymer other than polyacetylene are distinguished by improved stability of their optical and electrical properties in air when they have a protective coating of a silicate.
    Type: Grant
    Filed: August 18, 1995
    Date of Patent: July 22, 1997
    Assignee: AGFA-Gevaert Aktiengesellschaft
    Inventor: Karl-Heinz Aleksander Ostoja Starzewski