Patents by Inventor Andrea Esisenhardt

Andrea Esisenhardt 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 producing copolymers and terpolymers from olefins
    Publication number: 20060149006
    Abstract: The present invention relates to a process for the preparation of co- and terpolymers from olefins having improved properties. In particular, the invention relates to the preparation of ethylene-propene copolymers (EPR), ethylene-propylene-diene terpolymers (EPDM) and further copolymers of ethylene-propene, 1-olefins and dienes having elastomeric properties which are improved by their structural makeup. In particular, this is a process for the preparation of EPR and EPDM rubbers by polymerisation of ethylene and propene, optionally ethylidenenorborne as diene at temperatures between ?20 to 150° C.
    Type: Application
    Filed: November 28, 2003
    Publication date: July 6, 2006
    Inventors: Katrin Koehler, Walter Kaminsky, Andrea Esisenhardt