Patents by Inventor Kristien De Sitter

Kristien De Sitter 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).

  • Filled polymeric membranes, use and method of manufacturing
    Patent number: 8557022
    Abstract: A method of manufacturing a filled polymeric membrane includes a first step of preparing a filler suspension having a solvent for a glassy polymer and nanometer-sized particles. The nanometer-sized particles in the filler suspension are aggregated in aggregates having an average aggregate size in the range between 50 nm and smaller than 200 nm. In a following step, the glassy polymer is added to the filler suspension to obtain a polymer suspension. Next, the glassy polymer is dissolved in the polymer suspension. In a next step, the polymer suspension is cast on a substrate, followed by a step of removing the solvent. A filled polymeric membrane includes aggregates of nanometer-sized filler particles. The membrane is used in pervaporation and nanofiltration.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: October 15, 2013
    Assignee: Vlaamse Instelling Voor Technologisch Onderzoek N.V. (VITO)
    Inventors: Kristien De Sitter, Steven Mullens, Lieven Gevers
  • FILLED POLYMERIC MEMBRANES, USE AND METHOD OF MANUFACTURING
    Publication number: 20110089110
    Abstract: A method of manufacturing a filled polymeric membrane includes a first step of preparing a filler suspension having a solvent for a glassy polymer and nanometre-sized particles. The nanometre-sized particles in the filler suspension are aggregated in aggregates having an average aggregate size in the range between 50 nm and smaller than 200 nm. In a following step, the glassy polymer is added to the filler suspension to obtain a polymer suspension. Next, the glassy polymer is dissolved in the polymer suspension. In a next step, the polymer suspension is cast on a substrate, followed by a step of removing the solvent. A filled polymeric membrane includes aggregates of nanometre-sized filler particles. The membrane is used in pervaporation and nanofiltration.
    Type: Application
    Filed: August 25, 2008
    Publication date: April 21, 2011
    Applicant: Vlaamse Instelling Voor Technologisch Onderzoek N.V. (VITO)
    Inventors: Kristien De Sitter, Steven Mullens, Lieven Gevers