Patents by Inventor Arim Lange

Arim Lange 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).

  • Method for polymerizing &agr;-olefins in a gaseous phase
    Patent number: 6469111
    Abstract: &agr;-Olefins are polymerized in the gas phase at from 30 to 150° C. and a pressure of from 5 to 80 bar using a catalyst or a catalyst mixture containing as antistatic agent from 0.1 to 5% by weight of ZnO and/or anhydrous MgO, based on the total amount of the catalyst mixture, except for a process in which the catalyst mixture comprises a chromium catalyst and MgO-supported Ziegler catalyst which is modified with an alkene and with alkylaluminum hydride and also comprises free MgO and the total amount of the MgO is not less than 2% by weight of the catalyst mixture.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: October 22, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Shahram Mihan, Arim Lange, Philipp Rosendorfer, Johannes Hack