Patents by Inventor Jorge Manuel Jardim da Silva

Jorge Manuel Jardim da Silva 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 OF CONTROLLING POLYETHYLENE ARCHITECTURE
    Publication number: 20220325019
    Abstract: A method of controlling long chain branching in an ethylene-based polymer includes polymerizing ethylene with one or more optional monomers to form an ethylene-based polymer, and controlling a degree of long chain branching (LCB) in the ethylene-based polymer. The degree of LCB ranges from 0.1 per 1000 carbon atoms in the polymer backbone to 10 per 1000 carbon atoms in the polymer backbone, as measured by 13CNMR. The degree of LCB is controlled by adding one or more branched vinyl ester to the polymerizing step in an amount ranging from 0.01 mol % to 5.0 mol %, relative to total monomer content. A polymer composition contains the ethylene-based polymer. An article includes the polymer composition containing the ethylene-based polymer.
    Type: Application
    Filed: April 7, 2022
    Publication date: October 13, 2022
    Applicant: Braskem S.A.
    Inventors: Jorge Manuel Jardim da Silva, Hadi Mohammadi, Kevin Herrington, Manoela Ellwanger Cangussu, Nei Sebastião Domingues Junior, Adriane Gomes Simanke
  • Extrusion coating resin from tubular reactor
    Patent number: 11396562
    Abstract: A method may include polymerizing ethylene in a tubular reactor, where the polymerization is substantially free of a chain transfer agent. A method may include polymerizing ethylene in a tubular reactor, the ethylene having a specific delivery pressure and the polymerization having one or more specific peak temperatures. The molecular weight of the resulting polyethylene may be controlled by the selection of the delivery pressure and the one or more peak temperatures.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: July 26, 2022
    Assignee: Braskem S.A.
    Inventors: Eduardo José Dotti, Omar Wandir Renck, Roger Ribeiro Malmegrim, Marcelo Farah, Antonio Marchi Netto, Cid Miro Neto, Jorge Manuel Jardim da Silva
  • EXTRUSION COATING RESIN FROM TUBULAR REACTOR
    Publication number: 20200291146
    Abstract: A method may include polymerizing ethylene in a tubular reactor, where the polymerization is substantially free of a chain transfer agent. A method may include polymerizing ethylene in a tubular reactor, the ethylene having a specific delivery pressure and the polymerization having one or more specific peak temperatures. The molecular weight of the resulting polyethylene may be controlled by the selection of the delivery pressure and the one or more peak temperatures.
    Type: Application
    Filed: March 16, 2020
    Publication date: September 17, 2020
    Applicant: Braskem S.A.
    Inventors: Eduardo José Dotti, Omar Wandir Renck, Roger Ribeiro Malmegrim, Marcelo Farah, Antonio Marchi Netto, Cid Miro, Jorge Manuel Jardim da Silva