Patents by Inventor Catherine Louise Moad

Catherine Louise 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: 7144963
    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: August 13, 2004
    Date of Patent: December 5, 2006
    Assignees: E.I. du Pont de Nemours and Company, The Commonwealth of Australia Commonwealth Scientific and Industrial Research Organisation
    Inventors: Graeme Moad, Ezio Rizzardo, Catherine Louise Moad, Steven Dale Ittel, Lech Wilczek, Alexi A. Gridnev
  • Catalytic polymerization process
    Patent number: 7109282
    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: April 18, 2003
    Date of Patent: September 19, 2006
    Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific and Industrial Research Organisation
    Inventors: Graeme Moad, Ezio Rizzardo, Catherine Louise Moad, Steven Dale Ittel, Lech Wilczek, Alexei A. Gridnev
  • Process of microgel synthesis and products produced therefrom
    Patent number: 7064151
    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: Grant
    Filed: April 6, 2001
    Date of Patent: June 20, 2006
    Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific and Industrial Research Organisation
    Inventors: Charles T. Berge, John Chiefari, Jeffery W. Johnson, Albert Mau, Roshan Mayadunne, Catherine Louise Moad, Graeme Moad, Ezio Rizzardo, Gerry Swiegers, San Thang, Gerry Wilson
  • Catalytic polymerization process
    Publication number: 20030195313
    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: January 24, 2003
    Publication date: October 16, 2003
    Inventors: Graeme Moad, Ezio Rizzardo, Catherine Louise Moad, Steven Dale Ittel, Lech Wilczek, Alexei A. Gridnev
  • Catalytic polymerization process
    Patent number: 6624261
    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: August 19, 1998
    Date of Patent: September 23, 2003
    Assignees: E. I. du Pont Nemours and Company, Commonwealth Scientific and Industrial Research Organization
    Inventors: Graeme Moad, Ezio Rizzardo, Catherine Louise Moad, Steven Dale Ittel, Lech Wilczek, Alexei A. Gridnev
  • 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