Patents by Inventor Nicola Stefanie Paczkowski

Nicola Stefanie Paczkowski 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).

  • Catalyst composition for olefin polymerization
    Patent number: 7468416
    Abstract: A process for the preparation of a catalyst system includes the steps of combining a Lewis base, an organic compound having at least one functional group containing active hydrogen, and an organometallic component with a particulate support material to provide an intermediate composition, and then combining the intermediate composition with one or more metallocene compound. The catalyst system is advantageously used for olefin polymerization.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: December 23, 2008
    Assignee: Lummus Technology Inc.
    Inventors: Thorsten Sell, Joerg Schottek, Nicola Stefanie Paczkowski, Andreas Winter
  • Metallocene ligands, metallocene compounds and metallocene catalysts, their synthesis and their use for the polymerization of olefins
    Patent number: 7285608
    Abstract: A catalyst system includes a metallocene compound having the formula R9 L1 L2 M1 R1 R2 wherein R9 is a bridge between ligands L1 and L2 and M1 is a metal of Group IVB of the Periodic Table such as titanium, zirconium and hafnium and R1 and R2 can be hydrogen or aliphatic or aromatic groups. Bridge R9 can include silicon, germanium or tin. The metallocene compound of the invention as synthesized has a racemic to meso isomer ratio of greater than 5 to 1, thereby precluding the need for subsequent separation of the meso isomer.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: October 23, 2007
    Assignee: Novolen Technology Holdings C.V.
    Inventors: Joerg Schottek, Nicola Stefanie Paczkowski, Andreas Winter, Thorsten Sell
  • Catalyst composition for olefin polymerization
    Patent number: 7232869
    Abstract: A process for the preparation of a catalyst system includes the steps of combining a Lewis base, an organic compound having at least one functional group containing active hydrogen, and an organometallic component with a particulate support material to provide an intermediate composition, and then combining the intermediate composition with one or more metallocene compound. The catalyst system is advantageously used for olefin polymerization.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: June 19, 2007
    Assignee: Novolen Technology Holdings, C.V.
    Inventors: Thorsten Sell, Joerg Schottek, Nicola Stefanie Paczkowski, Andreas Winter