Patents by Inventor Lisa B. V. Stefaniak

Lisa B. V. Stefaniak 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).

  • Mitigation of catalyst inhibition in olefin polymerization
    Patent number: 9382344
    Abstract: This disclosure relates to a process for polymerization comprising providing a recycle stream, wherein the recycle stream comprises one or more C6 to C12 conjugated or non-conjugated diene monomers and one or more C1 to C40 oxygenates. The recycle stream is contacted with an adsorbent bed to produce a treated recycle stream; wherein the adsorbent bed comprises at least two adsorbents to remove quenching agent and C1 to C40 oxygenates.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: July 5, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Suzzy C. Ho, Jo Ann M. Canich, Machteld M. Mertens, Periagaram S. Ravishankar, Patrick S. Byrne, Lisa B. V. Stefaniak
  • Mitigation of Catalyst Inhibition in Olefin Polymerization
    Publication number: 20140378732
    Abstract: This disclosure relates to a process for polymerization comprising providing a recycle stream, wherein the recycle stream comprises one or more C6 to C12 conjugated or non-conjugated diene monomers and one or more C1 to C40 oxygenates. The recycle stream is contacted with an adsorbent bed to produce a treated recycle stream; wherein the adsorbent bed comprises at least two adsorbents to remove quenching agent and C1 to C40 oxygenates.
    Type: Application
    Filed: June 20, 2014
    Publication date: December 25, 2014
    Inventors: Suzzy C. Ho, Jo Ann M. Canich, Machteld M. Mertens, Periagaram S. Ravishankar, Patrick S. Byrne, Lisa B. V. Stefaniak