Patents by Inventor John Chiefari

John Chiefari 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).

  • Patent number: 11522220
    Abstract: An electrolyte composition comprising (i) a block copolymer, (ii) an organic electrolyte (e.g. an ionic liquid), and (iii) a lithium salt, wherein the block copolymer comprises a non-ionic block and an ionic block, the non-ionic block comprising polymerised residues of hydrophobic monomers, and the ionic block comprising polymerised monomer residues having covalently coupled thereto (a) a pendant organic ionic liquid cation, the pendant organic ionic liquid cation having a counter anion, (b) a pendant anionic moiety, the pendant anionic moiety having a counter cation, or (c) a combination thereof, and the electrolyte composition has at least two glass transition temperature (Tg) values.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: December 6, 2022
    Assignee: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
    Inventors: John Chiefari, Kristine Barlow, Nicolas Goujon, Xiaojuan Hao, Maria Forsyth, Patrick C. Howlett
  • Publication number: 20200405881
    Abstract: Provided herein are engineered cells and methods for engineering cells to deliver a therapeutic agent, e.g., a small molecule, peptide or other drug, to a cell or tissue to be treated.
    Type: Application
    Filed: March 6, 2018
    Publication date: December 31, 2020
    Applicants: UNIVERSITY OF WASHINGTON, SEATTLE CHILDREN'S RESEARCH INSTITUTE, COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
    Inventors: Patrick S. STAYTON, Anthony CONVERTINE, Debobrato DAS, Hye-Nam SON, Selvi SRINIVASAN, Katherine MONTGOMERY, Ian BLUMENTHAL, Courtney CRANE, Michael JENSEN, James MATTHAEI, John CHIEFARI, Maarten DANIAL, Fei HUANG, James MACDONALD, Almar POSTMA, Kathleen TURNER
  • Publication number: 20200280095
    Abstract: An electrolyte composition comprising (i) a block copolymer, (ii) an organic electrolyte (e.g. an ionic liquid), and (iii) a lithium salt, wherein the block copolymer comprises a non-ionic block and an ionic block, the non-ionic block comprising polymerised residues of hydrophobic monomers, and the ionic block comprising polymerised monomer residues having covalently coupled thereto (a) a pendant organic ionic liquid cation, the pendant organic ionic liquid cation having a counter anion, (b) a pendant anionic moiety, the pendant anionic moiety having a counter cation, or (c) a combination thereof, and the electrolyte composition has at least two glass transition temperature (Tg) values.
    Type: Application
    Filed: November 2, 2018
    Publication date: September 3, 2020
    Applicant: Commonwealth Scientific and Industrial Research Organisation
    Inventors: John Chiefari, Kristine Barlow, Nicolas Goujon, Xiaojuan Hao, Maria Forsyth, Patrick C. Howlett
  • Publication number: 20200276318
    Abstract: Provided herein are engineered cells and methods for engineering cells to deliver a therapeutic agent, e.g., a small molecule, peptide or other drug, to a cell or tissue to be treated.
    Type: Application
    Filed: March 6, 2018
    Publication date: September 3, 2020
    Applicants: UNIVERSITY OF WASHINGTON, SEATTLE CHILDREN'S RESEARCH INSTITUTE, COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
    Inventors: STAYTON S. Patrick, Katherine MONTGOMERY, Courtney CRANE, Michael JENSEN, John CHIEFARI, James MACDONALD, Maarten DANIAL, Fei HUANG, Almar POSTMA, Kathleen TURNER
  • Publication number: 20190358341
    Abstract: The present invention provides a biocompatible and hydrophilic polymer conjugate comprising a linear, aliphatic copolymer backbone to which is conjugated a binding moiety and an agent. The binding moiety is conjugated to an end of the copolymer backbone and facilitates targeted delivery of the agent. Also provided are methods for preparing such polymer conjugates via free radical polymerisation techniques such as reversible addition fragmentation chain transfer (RAFT) polymerisation and uses of such polymer conjugates in diagnosis or therapy.
    Type: Application
    Filed: December 22, 2017
    Publication date: November 28, 2019
    Inventors: Timothy ADAMS, John CHIEFARI, Xiaojuan HAO, Fei HUANG, Laurence MEAGHER, Judith SCOBLE, Charlotte WILLIAMS
  • Patent number: 9650450
    Abstract: The invention provides for a process for removing thiocarbonylthio groups from polymer prepared by RAFT polymerization, the process comprising: introducing into a flow reactor a solution comprising the RAFT polymer in solvent; and promoting a reaction within the flow reactor that removes the thiocarbonylthio groups so as to form a solution that flows out of the reactor comprising the RAFT polymer absent the thiocarbonylthio groups.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: May 16, 2017
    Assignee: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
    Inventors: John Chiefari, Christian Hornung, Almar Postma, Simon Saubern
  • Patent number: 9340498
    Abstract: A method of preparing polymer, the method comprising polymerizing one or more ethylenically unsaturated monomers of formula (I) where U is selected from H, C1-C4 alkyl or halogen; V is halogen or of the form O-G where G is selected from —C(O)R1 and —R1, or V is of the form NGGa where G is as defined above and Ga is selected from H and R1, G and Ga form together with N a heterocyclic ring, or V is of the form CH2Gb where Gb is selected from H, R1, OH, OR1, NR12, PR12, P(O)R12, P(OR1)2, SR1, SOR1, and SO2R1; and where the or each R1 is independently selected from optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted aryl, optionally substituted heteroaryl, optionally substituted carbocyclyl, optionally substituted heterocyclyl, optionally substituted arylalkyl, optionally substituted heteroarylalkyl, optionally substituted alkylaryl, optionally substituted alkylheteroaryl, and an optionally substituted polymer chain, under the control of a RA
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: May 17, 2016
    Assignee: COMMONWEALTH SCIENTIFIC and INDUSTRIAL RESERACH ORGANISATION
    Inventors: Ezio Rizzardo, John Chiefari, Massimo Benaglia, San Thang, Graeme Moad
  • Patent number: 8946360
    Abstract: The present invention relates to a process for continuously preparing polymer by RAFT solution polymerization, the process comprising: introducing into a flow reactor a reaction solution comprising one or more ethylenically unsaturated monomers, RAFT agent, non-reactive solvent and free radical initiator; and promoting RAFT polymerization of the one or more ethylenically unsaturated monomers within the reactor so as to form a polymer solution that flows out of the reactor.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: February 3, 2015
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: John Chiefari, Christian Hornung, Simon Saubern
  • Publication number: 20140350182
    Abstract: The invention provides for a process for removing thiocarbonylthio groups from polymer prepared by RAFT polymerisation, the process comprising: introducing into a flow reactor a solution comprising the RAFT polymer in solvent; and promoting a reaction within the flow reactor that removes the thiocarbonylthio groups so as to form a solution that flows out of the reactor comprising the RAFT polymer absent the thiocarbonylthio groups.
    Type: Application
    Filed: December 14, 2012
    Publication date: November 27, 2014
    Inventors: John Chiefari, Christian Hornung, Almar Postma, Simon Saubern
  • Publication number: 20130217841
    Abstract: The present invention relates to a process for continuously preparing polymer by RAFT solution polymerisation, the process comprising: introducing into a flow reactor a reaction solution comprising one or more ethylenically unsaturated monomers, RAFT agent, non-reactive solvent and free radical initiator; and promoting RAFT polymerisation of the one or more ethylenically unsaturated monomers within the reactor so as to form a polymer solution that flows out of the reactor.
    Type: Application
    Filed: August 12, 2011
    Publication date: August 22, 2013
    Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
    Inventors: John Chiefari, Christian Hornung, Simon Saubern
  • Publication number: 20120004381
    Abstract: A method of preparing polymer, the method comprising polymerising one or more ethylenically unsaturated monomers of formula (I) where U is selected from H, C1-C4 alkyl or halogen; V is halogen or of the form O-G where G is selected from —C(O)R1 and —R1, or V is of the form NGGa where G is as defined above and Ga is selected from H and R1, G and Ga form together with N a heterocyclic ring, or V is of the form CH2Gb where Gb is selected from H, R1, OH, OR1, NR12, PR12, P(O)R12, P(OR1)2, SR1, SOR1, and SO2R1; and where the or each R1 is independently selected from optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted aryl, optionally substituted heteroaryl, optionally substituted carbocyclyl, optionally substituted heterocyclyl, optionally substituted arylalkyl, optionally substituted heteroarylalkyl, optionally substituted alkylaryl, optionally substituted alkylheteroaryl, and an optionally substituted polymer chain, under the control of a RA
    Type: Application
    Filed: January 22, 2010
    Publication date: January 5, 2012
    Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
    Inventors: Ezio Rizzardo, John Chiefari, Massimo Benaglia, San Thang, Graeme Moad
  • 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
  • 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
  • Patent number: 6747111
    Abstract: A free radical polymerization process suitable for synthesizingpolymers is disclosed. The process utilizes novel sulfur based chain transfer agents and is widely compatible over a range of monomers and reaction conditions. Novel polymers having low pollydispersity and predictable specific polymer architecture and molecular weight are produced by the process. The polymers produced by the process are suitable for use as binders in automotive OEM and refinish coatings.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: June 8, 2004
    Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific and Industrial Research Organization
    Inventors: John Chiefari, Roshan Tyrrel Mayadunne, Graeme Moad, Ezio Rizzardo, San Hoa Thang
  • Publication number: 20040024132
    Abstract: A free radical polymerization process suitable for synthesizingpolymers is disclosed. The process utilizes novel sulfur based chain transfer agents and is widely compatible over a range of monomers and reaction conditions. Novel polymers having low polydispersity and predictable specific polymer architecture amd molecular weight are produced by the process. The polymers produced by the process are suitable for use as binders in automotive OEM and refinish coatings.
    Type: Application
    Filed: July 18, 2003
    Publication date: February 5, 2004
    Inventors: John Chiefari, Roshan Tyrrel Mayadunne, Graeme Moad, Ezio Rizzardo, San Hoa Thang
  • Patent number: 6642318
    Abstract: A free radical polymerization process suitable for synthesizing polymers is disclosed. The process utilizes novel sulfur based chain transfer agents and is widely compatible over a range of monomers and reaction conditions. Novel polymers having low polydispersity and predictably specific polymer architecture and molecular weight are produced by the process. The polymers produced by the process are suitable for use as binders in automotive OEM and refinish coatings.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: November 4, 2003
    Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific and Industrial Research Organization
    Inventors: John Chiefari, Roshan Tyrrel Mayadunne, Graeme Moad, Ezio Rizzardo, San Hoa Thang
  • Patent number: 6376626
    Abstract: A free-radical polymerization process for making macromonomers having the structure: comprising contacting: (a) CH2═CHY; (b) optionally, CH2═CXB; and (c) free-radicals, produced from a free-radical source; in which B, U, X, Y, Z, m, n and p are defined in the text; macromonomer quality being controlled by adjusting one or more of the following variables: molar ratios of a, b and c; temperature; monomer concentration; and conversion.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: April 23, 2002
    Assignee: Commonwealth Scientific and Industrial Research Organization
    Inventors: John Chiefari, Graeme Moad, Ezio Rizzardo, Alexei A. Gridnev