Patents by Inventor Julia Krstina

Julia Krstina 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).

  • Polymer synthesis
    Patent number: 6291620
    Abstract: Process for the synthesis of block polymers, homopolymers and copolymers of narrow polydispersity having formula (1) by contacting selected vinyl monomer(s), vinyl-terminated compound(s) and free radicals in which effective control of production of polymer is achieved by controlling the mole ratio of vinyl monomer(s), vinyl-terminated compound(s) and free radicals relative to one another; and polymers produced thereby
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: September 18, 2001
    Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific Industrial Research Organization
    Inventors: Graeme Moad, Catherine Louise Moad, Julia Krstina, Ezio Rizzardo, Thomas Robert Darling, Charles Thomas Berge
  • Polymerization in aqueous media
    Patent number: 5756605
    Abstract: A method for the solution or amulsion polymerization of ethylenically unsaturated monomers, styrene, and other free radical polymerizatable monomers in aqueous media in which a cobalt chain transfer agent is used which has both hydrolytic stability and solubility in water and in the organic phase with preferential solubility in the organic phase.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: May 26, 1998
    Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific and Industrial
    Inventors: Graeme Moad, Catherine Louise Moad, Julia Krstina, Ezio Rizzardo, San Hoa Thang, Michael Fryd