Patents by Inventor Jurgen Rohrmann

Jurgen Rohrmann 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).

  • 1-olefin stereoblock polymer wax, and a process for the preparation thereof
    Patent number: 4962248
    Abstract: 1-Olefin stereoblock polymer waxes having a very narrow molecular weight distribution are obtained by means of a catalyst which comprises a metallocene compound containing cyclopentadienyl radicals substituted by chiral groups, and an aluminoxane, in the presence of small amounts of hydrogen during the polymerization.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: October 9, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Andreas Winter, Martin Antberg, Jurgen Rohrmann