Patents by Inventor Hugo Angela Albert Berghmans

Hugo Angela Albert Berghmans 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 the preparation of polymer particles
    Patent number: 6127439
    Abstract: The present invention provides a process for preparing an expandable polymer of a vinyl aromatic monomer and a polar water adsorbing monomer. The monomers are partially polymerized and then suspended in water so that the resulting beads contain from 3 to 40 weight % water which act as the sole or a predominant blowing agent.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: October 3, 2000
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Hugo Angela Albert Berghmans, Igor Chorvath, Peter Kelemen, Eric Wilhelmus Johannes Frederik Neijman, Johannes Maria Zijderveld