Patents by Inventor Jan Gohre

Jan Gohre 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 Comprising Chromium and Zinc for Olefin Polymerization and Process for Preparing It
    Publication number: 20080299342
    Abstract: Catalyst for the polymerization and/or copolymerization of olefins which has a chromium content of from 0.01 to 5% by weight, based on the element in the finished catalyst, is supported on a finely divided inorganic support and is obtainable by concluding calcination at temperatures of from 350 to 1050° C. and has a zinc content of from 0.01 to 10% by weight, based on the element in the finished catalyst.
    Type: Application
    Filed: June 9, 2005
    Publication date: December 4, 2008
    Applicant: BASELL POLYOLEFINE GMGH
    Inventors: Martin Schneider, Jan Gohre, Rainer Karer, Wolfgang Rohde, Anke Bold, Martin Lux, Ernst Fischer, Christoph Kiener
  • Method for producing highly branched ethylene polymers
    Patent number: 7259216
    Abstract: A process for preparing highly branched ethylene polymers comprises polymerizing ethylene over a catalyst system comprising a compound of the formula Ia or Ib and an activator, where the process is carried out at from 40 to 110° C. and a pressure of from 10 to 100 bar.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: August 21, 2007
    Assignee: Basell Polyolefine GmbH
    Inventors: Sharam Mihan, Dieter Lilge, Jan Göhre
  • Method for producing highly branched ethylene polymers
    Publication number: 20040097666
    Abstract: A process for preparing highly branched ethylene polymers comprises polymerizing ethylene over a catalyst system comprising a compound of the formula Ia or Ib 1
    Type: Application
    Filed: March 25, 2003
    Publication date: May 20, 2004
    Inventors: Sharam Mihan, Dieter Lilge, Jan Gohre
  • Catalysts containing organochromium compounds and their use for polymerizing alkenes
    Patent number: 6255418
    Abstract: Novel donor ligand substituted &eegr;5-organyl chromium complexes which, in admixture with Lewis acids, such as methylaluminoxane, form highly active polymerization catalysts for &agr;-alkenes and mixtures thereof and for mixtures of &agr;-alkenes and unsaturated alkenes with a strained double bond.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: July 3, 2001
    Assignee: Studiengesellschaft Kohle mbH
    Inventors: Peter W. Jolly, Klaus Jonas, Glenn P. J. Verhovnik, Arno Döhring, Jan Göhre, Jan Christoph Weber