Patents by Inventor Edna Olejnik

Edna Olejnik 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).

  • AQUEOUS DISPERSIONS OF POLYMER PARTICLES
    Publication number: 20100227975
    Abstract: The invention provides a method for preparing an aqueous dispersion of polymer particles comprising the following steps: (i) preparing a dispersion having a continuous aqueous phase, a dispersed organic phase comprising one or more ethylenically unsaturated monomers, and an amphiphilic RAFT agent as a stabiliser for said organic phase, and (ii) polymerising said one or more ethylenically unsaturated monomers under the control of said amphiphilic RAFT agent to form said aqueous dispersion of polymer particles, novel amphiphilic RAFT agents for use in this method, novel RAFT agents useful in making these amphiphilic RAFT agents and methods for their manufacture.
    Type: Application
    Filed: May 14, 2010
    Publication date: September 9, 2010
    Applicant: UNIVERSITY OF SYDNEY
    Inventors: Christopher Henry SUCH, Ezio RIZZARDO, Algirdas Kazimieras SERELIS, Brian Stanley HAWKETT, Robert Goulston GILBERT, Christopher James FERGUSON, Robert John HUGHES, Edna Olejnik
  • Aqueous dispersions of polymer particles
    Patent number: 7745553
    Abstract: The invention provides a method for preparing an aqueous dispersion of polymer particles comprising the following steps: (i) preparing a dispersion having a continuous aqueous phase, a dispersed organic phase comprising one or more ethylenically unsaturated monomers, and an amphiphilic RAFT agent as a stabilizer for said organic phase, and (ii) polymerizing said one or more ethylenically unsaturated monomers under the control of said amphiphilic RAFT agent to form said aqueous dispersion of polymer particles, novel amphiphilic RAFT agents for use in this method, novel RAFT agents useful in making these amphiphilic RAFT agents and methods for their manufacture.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: June 29, 2010
    Assignee: University of Sydney
    Inventors: Christopher Henry Such, Ezio Rizzardo, Algirdas Kazimieras Serelis, Brian Stanley Hawkett, Robert Goulston Gilbert, Christopher James Ferguson, Robert John Hughes, Edna Olejnik, legal representative
  • Aqueous dispersions of polymer particles
    Publication number: 20060223936
    Abstract: The invention provides a method for preparing an aqueous dispersion of polymer particles comprising the following steps: (i) preparing a dispersion having a continuous aqueous phase, a dispersed organic phase comprising one or more ethylenically unsaturated monomers, and an amphiphilic RAFT agent as a stabiliser for said organic phase, and (ii) polymerising said one or more ethylenically unsaturated monomers under the control of said amphiphilic RAFT agent to form said aqueous dispersion of polymer particles, novel amphiphilic RAFT agents for use in this method, novel RAFT agents useful in making these amphiphilic RAFT agents and methods for their manufacture.
    Type: Application
    Filed: December 20, 2002
    Publication date: October 5, 2006
    Inventors: Christopher Such, Ezio Rizzardo, Algirdas Serelis, Brian Hawkett, Robert Gilbert, Christopher Ferguson, Robert Hughes, Edna Olejnik