Patents by Inventor Renè Ernst

Renè Ernst 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).

  • Bridged zirconocene compounds, process for their preparation and their use as catalyst components in the polymerization of olefins
    Patent number: 6232484
    Abstract: Zirconocene compounds with two indenyl ligands linked in the 2 position by means of a two-carbon-atoms divalent bridging group can be suitably used as components of catalysts for the polymerization of olefins. Particularly it is possible to prepare, with high yields, ethylene (co)polymers having low molecular weights and narrow molecular weight distributions, without the need of using considerable amounts of molecular weight regulators, such as hydrogen.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: May 15, 2001
    Assignee: Montell Technology B.V.
    Inventors: Colin J. Schaverien, Renè Ernst, Jan-Dirk van Loon, Tiziano Dall′occo