Patents by Inventor Roger Ribeiro Malmegrim

Roger Ribeiro Malmegrim 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).

  • Bio-based EVA compositions and articles and methods thereof
    Patent number: 11746197
    Abstract: A polymer may include a copolymer of ethylene and vinyl acetate, in which the ethylene is at least partially obtained from a renewable source of carbon, and wherein the copolymer has a melt index (190° C./2.16 kg) ranging from 0.12 to 8.0 g/10 min according to ASTM D1238.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: September 5, 2023
    Assignee: Braskem S.A.
    Inventors: Giancarlos Delevati, Omar Wandir Renck, Carlos Augusto Maia Faria, Paulo Lourenço Brito Herrmann, Marcial Cesar Vieira, Patricia Mara De Freitas Rocha, Marcelo Fioravanti das Neves, Roger Ribeiro Malmegrim
  • 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
  • BIO-BASED EVA COMPOSITIONS AND ARTICLES AND METHODS THEREOF
    Publication number: 20210108039
    Abstract: A polymer may include a copolymer of ethylene and vinyl acetate, in which the ethylene is at least partially obtained from a renewable source of carbon, and wherein the copolymer has a melt index (190° C./2.16 kg) ranging from 0.12 to 8.0 g/10 min according to ASTM D1238.
    Type: Application
    Filed: October 15, 2020
    Publication date: April 15, 2021
    Applicant: Braskem S.A.
    Inventors: Giancarlos Delevati, Omar Wandir Renck, Carlos Augusto Maia Faria, Paulo Lourenço Brito Herrmann, Marcial Cesar Vieira, Patricia Mara de Freitas Rocha, Marcelo Fioravanti das Neves, Roger Ribeiro Malmegrim
  • 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