Patents by Inventor Robert Van Asseldonk

Robert Van Asseldonk 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).

  • Devolatilization of plastomer pellets
    Patent number: 12281191
    Abstract: The devolatilization of plastomer pellets is undertaken using nitrogen that is recycled in the process. Volatile hydrocarbons are removed from the nitrogen in a hydrocarbon extraction vessel (e.g. an adsorbent bed). In an embodiment, the recycled nitrogen contains less than 300 ppm of volatile hydrocarbons after being treated in the adsorbent bed.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: April 22, 2025
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Abolfazl Noorjahan, Stephen Brown, Lawrence Van Asseldonk, Robert Van Asseldonk, Jeffrey Cahill, Carlos Duque, William Oberg
  • DEVOLATILIZATION OF PLASTOMER PELLETS
    Publication number: 20220169758
    Abstract: The devolatilization of plastomer pellets is undertaken using nitrogen that is recycled in the process. Volatile hydrocarbons are removed from the nitrogen in a hydrocarbon extraction vessel (e.g. an adsorbent bed). In an embodiment, the recycled nitrogen contains less than 300 ppm of volatile hydrocarbons after being treated in the adsorbent bed.
    Type: Application
    Filed: February 27, 2020
    Publication date: June 2, 2022
    Applicant: NOVA Chemical (International) S.A.
    Inventors: Abolfazl Noorjahan, Stephen Brown, Lawrence Van Asseldonk, Robert Van Asseldonk, Jeffrey Cahill, Carlos Duque, William Oberg
  • Multistage catalyst injection system for an olefin polymerization reactor
    Patent number: 10987647
    Abstract: This disclosure relates to a method and an apparatus for the delivery of a multi-component olefin polymerization catalyst to a polymerization reactor.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: April 27, 2021
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Fazle Sibtain, Eric Clavelle, Robert Van Asseldonk, Lawrence Van Asseldonk, Geoffrey Harding
  • MULTISTAGE CATALYST INJECTION SYSTEM FOR AN OLEFIN POLYMERIZATION REACTOR
    Publication number: 20190388863
    Abstract: This disclosure relates to a method and an apparatus for the delivery of a multi-component olefin polymerization catalyst to a polymerization reactor.
    Type: Application
    Filed: June 25, 2019
    Publication date: December 26, 2019
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Fazle Sibtain, Eric Clavelle, Robert Van Asseldonk, Lawrence Van Asseldonk, Geoffrey Harding