Patents by Inventor James Spanswick

James Spanswick 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).

  • Publication number: 20190352435
    Abstract: A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
    Type: Application
    Filed: July 29, 2019
    Publication date: November 21, 2019
    Inventors: Wojciech Jakubowski, James Spanswick
  • Publication number: 20190194397
    Abstract: A polymer composition comprising star macromolecules is provided. Each star macromolecule has a core and five or more arms, wherein the number of arms within a star macromolecule varies across the composition of star molecules. The arms on a star are covalently attached to the core of the star; each arm comprises one or more (co)polymer segments; and at least one arm and/or at least one segment exhibits a different solubility from at least one other arm or one other segment, respectively, in a reference liquid of interest.
    Type: Application
    Filed: February 26, 2019
    Publication date: June 27, 2019
    Inventors: Wojciech Jakubowski, Patrick McCarthy, Nicolay Tsarevsky, James Spanswick
  • Patent number: 10221285
    Abstract: Oil soluble rheology modifying star macromolecules having a core and five or more polymeric arms, and compositions comprising the same. The polymeric arms on a star are covalently attached to the core of the star; each polymeric arm comprises one or more (co)polymer segments; and at least one polymeric arm and/or at least one polymeric segment exhibits a different solubility from at least one other polymeric arm or one other polymeric segment, respectively, in a reference liquid of interest. The oil soluble rheology modifying star macromolecules and compositions comprising the same for use in oil based systems.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: March 5, 2019
    Assignee: Pilot Polymer Technologies, Inc.
    Inventors: Wojciech Jakubowski, Patrick McCarthy, Nicolay Tsarevsky, James Spanswick
  • Publication number: 20180237551
    Abstract: A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
    Type: Application
    Filed: November 28, 2017
    Publication date: August 23, 2018
    Inventors: Wojciech Jakubowski, James Spanswick
  • Patent number: 9856331
    Abstract: A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: January 2, 2018
    Assignee: ATRP SOLUTIONS, INC.
    Inventors: Wojciech Jakubowski, James Spanswick
  • Publication number: 20170051094
    Abstract: Oil soluble rheology modifying star macromolecules having a core and five or more polymeric arms, and compositions comprising the same. The polymeric arms on a star are covalently attached to the core of the star; each polymeric arm comprises one or more (co)polymer segments; and each polymeric arm comprises a monomeric unit of a methyl methacrylate. The oil soluble rheology modifying star macromolecules and compositions comprising the same for use in oil based systems.
    Type: Application
    Filed: June 22, 2016
    Publication date: February 23, 2017
    Inventors: Wojciech Jakubowski, Patrick McCarthy, Nicolay Tsarevsky, James Spanswick
  • Publication number: 20170037194
    Abstract: Oil soluble rheology modifying star macromolecules having a core and five or more polymeric arms, and compositions comprising the same. The polymeric arms on a star are covalently attached to the core of the star; each polymeric arm comprises one or more (co)polymer segments; and at least one polymeric arm and/or at least one polymeric segment exhibits a different solubility from at least one other polymeric arm or one other polymeric segment, respectively, in a reference liquid of interest. The oil soluble rheology modifying star macromolecules and compositions comprising the same for use in oil based systems.
    Type: Application
    Filed: June 6, 2016
    Publication date: February 9, 2017
    Inventors: Wojciech Jakubowski, Patrick McCarthy, Nicolay Tsarevsky, James Spanswick
  • Patent number: 9546225
    Abstract: A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: January 17, 2017
    Assignee: ATRP SOLUTIONS, INC.
    Inventors: Wojciech Jakubowski, James Spanswick
  • Patent number: 9518136
    Abstract: A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: December 13, 2016
    Assignee: ATRP SOLUTIONS, INC.
    Inventors: Wojciech Jakubowski, James Spanswick
  • Patent number: 9399694
    Abstract: A polymer composition comprising star macromolecules is provided. Each star macromolecule has a core and five or more arms, wherein the number of arms within a star macromolecule varies across the composition of star molecules. The arms on a star are covalently attached to the core of the star; each arm comprises one or more (co)polymer segments; and at least one arm and/or at least one segment exhibits a different solubility from at least one other arm or one other segment, respectively, in a reference liquid of interest.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: July 26, 2016
    Assignee: ATRP SOLUTIONS, INC.
    Inventors: Wojciech Jakubowski, Patrick McCarthy, Nicolay Tsarevsky, James Spanswick
  • Patent number: 9382370
    Abstract: A polymer composition comprising star macromolecules is provided. Each star macromolecule has a core and five or more arms, wherein the number of arms within a star macromolecule varies across the composition of star molecules. The arms on a star are covalently attached to the core of the star; each arm comprises one or more (co)polymer segments; and at least one arm and/or at least one segment exhibits a different solubility from at least one other arm or one other segment, respectively, in a reference liquid of interest.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: July 5, 2016
    Assignee: ATRP SOLUTIONS, INC.
    Inventors: Wojciech Jakubowski, Patrick McCarthy, Nicolay Tsarevsky, James Spanswick
  • Publication number: 20150259449
    Abstract: A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
    Type: Application
    Filed: March 23, 2015
    Publication date: September 17, 2015
    Inventors: Wojciech Jakubowski, James Spanswick
  • Publication number: 20150191552
    Abstract: A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
    Type: Application
    Filed: March 24, 2015
    Publication date: July 9, 2015
    Inventors: Wojciech Jakubowski, James Spanswick
  • Patent number: 9012528
    Abstract: A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: April 21, 2015
    Assignee: ATRP Solutions, Inc.
    Inventors: Wojciech Jakubowski, James Spanswick
  • Patent number: 8962764
    Abstract: A process for constructing multi-arm star macromolecules with uniform properties, high molecular weight and narrow molecular weight distribution using free radical polymerization is described.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: February 24, 2015
    Assignee: Carnegie Mellon University
    Inventors: Krzysztof Matyjaszewski, Haifeng Gao, James Spanswick
  • Publication number: 20140357814
    Abstract: A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
    Type: Application
    Filed: August 14, 2014
    Publication date: December 4, 2014
    Inventors: Wojciech Jakubowski, James Spanswick
  • Patent number: 8822610
    Abstract: A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: September 2, 2014
    Assignee: ATRP Solutions, Inc.
    Inventors: Wojciech Jakubowski, James Spanswick
  • Patent number: 8815971
    Abstract: A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: August 26, 2014
    Assignee: ATRP Solutions, Inc.
    Inventors: Wojciech Jakubowski, James Spanswick
  • Publication number: 20140155512
    Abstract: A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
    Type: Application
    Filed: February 7, 2014
    Publication date: June 5, 2014
    Applicant: ATRP Solutions, Inc.
    Inventors: Wojciech Jakubowski, James Spanswick
  • Publication number: 20140024783
    Abstract: A polymer composition comprising star macromolecules is provided. Each star macromolecule has a core and five or more arms, wherein the number of arms within a star macromolecule varies across the composition of star molecules. The arms on a star are covalently attached to the core of the star; each arm comprises one or more (co)polymer segments; and at least one arm and/or at least one segment exhibits a different solubility from at least one other arm or one other segment, respectively, in a reference liquid of interest.
    Type: Application
    Filed: September 25, 2013
    Publication date: January 23, 2014
    Applicant: ATRP Solutions, Inc.
    Inventors: Wojciech Jakubowski, Patrick McCarthy, Nicolay Tsarevsky, James Spanswick