Patents by Inventor Jacob Veldman

Jacob Veldman 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).

  • Process for adding a chain shuttling agent
    Patent number: 10392450
    Abstract: A process to form a block copolymer comprising two or more regions or segments of differentiated polymer composition or properties, including feeding a first mixture that includes a chain shuttling agent, a solvent, the one or more monomers, and optionally hydrogen into a first reactor or reactor zone, feeding a second mixture that includes at least one olefin polymerization catalyst and at least one cocatalyst into the first reactor or reactor zone, contacting the first mixture and the second mixture under polymerization conditions in the first reactor or reactor zone to form a reaction mixture that is characterized by the formation of polymer chains from the monomers, allowing polymerization to occur in the first reactor or reactor zone and/or a second reactor or reactor zone to form polymer chains that are differentiated from the polymer chains, such that the resultant polymer has two or more chemically or physically distinguishable blocks.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: August 27, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Thomas W. Karjala, Brandon Fails, Jacob Veldman, Curvel Hypolite, James B. Crim, Anthony J. Castelluccio, Ludovicus J C Sluijts, Pradeep Jain
  • PROCESS FOR ADDING A CHAIN SHUTTLING AGENT
    Publication number: 20180086857
    Abstract: A process to form a block copolymer comprising two or more regions or segments of differentiated polymer composition or properties, including feeding a first mixture that includes a chain shuttling agent, a solvent, the one or more monomers, and optionally hydrogen into a first reactor or reactor zone, feeding a second mixture that includes at least one olefin polymerization catalyst and at least one cocatalyst into the first reactor or reactor zone, contacting the first mixture and the second mixture under polymerization conditions in the first reactor or reactor zone to form a reaction mixture that is characterized by the formation of polymer chains from the monomers, allowing polymerization to occur in the first reactor or reactor zone and/or a second reactor or reactor zone to form polymer chains that are differentiated from the polymer chains, such that the resultant polymer has two or more chemically or physically distinguishable blocks.
    Type: Application
    Filed: March 22, 2016
    Publication date: March 29, 2018
    Inventors: Thomas W. Karjala, Brandon Fails, Jacob Veldman, Curvel Hypolite, James B. Crim, Anthony J. Castelluccio, Ludovicus JC Sluijts, Pradeep Jain