Patents by Inventor Marcel LIEVRE

Marcel LIEVRE 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).

  • Reverse-phase polymerization process
    Patent number: 10370461
    Abstract: A reverse-phase suspension polymerization process for the manufacture of polymer beads comprising forming aqueous monomer beads comprising an aqueous solution of water-soluble ethylenically unsaturated monomer or monomer blend and polymerizing the monomer or monomer blend, to form polymer beads while suspended in a non-aqueous liquid, and recovering polymer beads, in which the process comprises providing in a vessel (1) a volume (2) of non-aqueous liquid wherein the volume of non-aqueous liquid extends between at least one polymer bead discharge point (3) and at least one monomer feed point (4), feeding the aqueous monomer or monomer blend through orifices (5) into, or onto, the non-aqueous liquid to form aqueous monomer beads, allowing the aqueous monomer beads to flow towards the polymer bead discharge point initiating polymerization of the aqueous monomer beads to form polymerizing beads, wherein the polymerizing beads form polymer beads when they reach the polymer bead discharge point, removing a suspensi
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: August 6, 2019
    Assignee: BASF SE
    Inventors: Pascal Hesse, Aleksandra Jelicic, Gabriela Eugenia Fonseca Zepeda, Robert Haschick, Shankara Narayanan Keelapandal Ramamoorthy, Gareth Ian Naylor, John Scott Barratt, Oliver Soetje, Marcel Lievre, Florian Rainau, Mark Lebkuecher
  • REVERSE-PHASE POLYMERISATION PROCESS
    Publication number: 20160159939
    Abstract: A reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming aqueous monomer beads comprising an aqueous solution of water-soluble ethylenically unsaturated monomer or monomer blend and polymerising the monomer or monomer blend, to form polymer beads while suspended in a non-aqueous liquid, and recovering polymer beads, in which the process comprises providing in a vessel (1) a volume (2) of non-aqueous liquid wherein the volume of non-aqueous liquid extends between at least one polymer bead discharge point (3) and at least one monomer feed point (4), feeding the aqueous monomer or monomer blend through orifices (5) into, or onto, the non-aqueous liquid to form aqueous monomer beads, allowing the aqueous monomer beads to flow towards the polymer bead discharge point initiating polymerisation of the aqueous monomer beads to form polymerising beads, wherein the polymerising beads form polymer beads when they reach the polymer bead discharge point, removing a suspensi
    Type: Application
    Filed: July 29, 2014
    Publication date: June 9, 2016
    Applicant: BASF SE
    Inventors: Pascal HESSE, Aleksandra JELICIC, Gabriela Eugenia FONSECA ZEPEDA, Robert HASCHICK, Shankara Narayanan KEELAPANDAL RAMAMOORTHY, Gareth Ian NAYLOR, John Scott BARRATT, Oliver SOETJE, Marcel LIEVRE, Florian RAINAU, Mark LEBKUECHER