Patents by Inventor Isreal G. Burstain

Isreal G. Burstain 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).

  • Polymerization process
    Patent number: 5194529
    Abstract: An improved process for making changes in polymer product type in an ongoing olefin polymerization process without undue disruption of the ongoing polymerization process comprises adding to the polymerization reactor a hydrogenation catalyst and sufficient molecular hydrogen to hydrogenate the unreacted olefin monomer, subsequently removing hydrogenated product and hydrogenation catalyst while resuming polymerization to produce polymer product of changed type upon addition to the reactor of olefin feed appropriate for production of such polymer product of changed type.
    Type: Grant
    Filed: October 28, 1991
    Date of Patent: March 16, 1993
    Assignee: Shell Oil Company
    Inventors: James D. McCullough, Jr., Isreal G. Burstain