Patents by Inventor Michael Treptau

Michael Treptau 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).

  • Cascaded polyolefin slurry polymerization employing disengagement vessel between reactors
    Publication number: 20050261471
    Abstract: A disengagement vessel employing a lock hopper effectively reduces concentration of non-polymer-associated components in the polymer product slurry of a first olefin slurry polymerization reactor, allowing cascading of a second slurry polymerization reactor operating at lesser concentration of comonomers, hydrogen, and other components to produce multicompositional polyolefin polymers and/or polymers having a multimodal monomer distribution, e.g. diblock polymers having substantially non-overlapping comonomer contents between the blocks.
    Type: Application
    Filed: June 3, 2005
    Publication date: November 24, 2005
    Applicant: Equistar Chemicals L.P.
    Inventors: Joel Mutchler, Kiran Gupte, Michael Treptau