Patents by Inventor Catherine Moad

Catherine Moad 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).

  • Catalytic polymerization process
    Patent number: 7148297
    Abstract: This invention relates to a process for controlling the architecture of copolymers of at least two unsaturated monomers, made by free-radical polymerization in the presence of a cobalt-containing chain transfer agent, including the control of molecular weight, degree of branching and vinyl end group termination, by varying at least one of the variables of molar ratio of monomers, their relative chain transfer constants, polymerization temperature and degree of conversion and amount of cobalt chain transfer agent; and polymers made thereby.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: December 12, 2006
    Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific and Industrial Research Organisation
    Inventors: Graeme Moad, Ezio Rizzardo, Catherine Moad, Steven Dale Ittel, Lech Wilczek, Alexei A Gridnev
  • PROCESS OF MICROGEL SYNTHESIS AND PRODUCTS PRODUCED THEREFROM
    Publication number: 20060142404
    Abstract: The invention provides in one aspect a process for preparing a microgel by RAFT polymerizing in the presence of a RAFT chain transfer agent, one or more solvophobic monomers and one or more solvophilic monomers to form one or more block copolymers comprising one or more solvophobic blocks and one or more solvophilic blocks wherein the solvophobic block is insoluble in a dispersing medium and the solvophilic block is soluble in the dispersing medium. The block copolymer is dispersed in the dispersing medium to form micelles, which is then stabilized to form the microgel. The dispersing medium can be aqueous or lipophilic. The method of the present invention also permits one to encapsulate a wide variety of materials, such as pigments, dye molecules, and aluminum flakes used in metallized paints.
    Type: Application
    Filed: April 6, 2001
    Publication date: June 29, 2006
    Inventors: Charles Berge, John Chiefari, Jeffery Johnson, Albert Mau, Roshan Mayadunne, Catherine Moad, Graeme Moad, Ezio Rizzardo, Gerry Swiegers, San Thang, Gerry Wilson
  • Catalytic polymerization process
    Publication number: 20050014911
    Abstract: This invention relates to a process for controlling the architecture of copolymers of at least two unsaturated monomers, made by free radical polymerization in the presence of a cobalt-containing chain transfer agent, including the control of molecular weight degree of branching and vinyl end group termination, by varying at least one of the variables of molar ratio of monomers, their relative chain transfer constants, polymerization temperature and degree of conversion and amount of cobalt chain transfer agent; and polymers made thereby.
    Type: Application
    Filed: August 13, 2004
    Publication date: January 20, 2005
    Inventors: Graeme Moad, Ezio Rizzardo, Catherine Moad, Steven Ittel, Lech Wilczek, Alexei Gridnev