Patents Assigned to Pilot Polymer Technologies, Inc.
  • Patent number: 10941230
    Abstract: The present invention relates to multi-arm surfactant-system thickening star macromolecules, and methods of preparing and using the same. In one aspect of the invention, a surfactant-system thickening star macromolecule is capable of providing surfactant-compatibility, increase the viscosity of a surfactant-containing system, and/or temperature-stability to an aqueous composition.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: March 9, 2021
    Assignee: Pilot Polymer Technologies, Inc.
    Inventors: Liang Huang, Yuanxi Liao, Patrick McCarthy
  • Patent number: 10899863
    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: Grant
    Filed: June 22, 2016
    Date of Patent: January 26, 2021
    Assignee: Pilot Polymer Technologies, Inc.
    Inventors: Wojciech Jakubowski, Patrick McCarthy, Nicolay Tsarevsky, James Spanswick
  • Patent number: 10696798
    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: February 26, 2019
    Date of Patent: June 30, 2020
    Assignee: Pilot Polymer Technologies, Inc.
    Inventors: Wojciech Jakubowski, Patrick McCarthy, Nicolay Tsarevsky, James Spanswick
  • Patent number: 10654960
    Abstract: The present invention relates to multi-arm star macromolecules which are used as thickening agents or rheology modifiers, including use in hydraulic fracturing fluid compositions. In one aspect of the invention, a star macromolecule is capable of thickening via a dual mechanism comprising (1) self-assembly of the hydrophobic polymerized segments of the star macromolecules via hydrophobic interactions or associations, and (2) association, reaction, or combination of the hydroxyl-containing polymerized segments of one or more of the star macromolecules.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: May 19, 2020
    Assignee: PILOT POLYMER TECHNOLOGIES, INC.
    Inventors: Patrick McCarthy, Yuanxi Liao, Liang Huang
  • Patent number: 10336848
    Abstract: The present invention relates to multi-arm surfactant-system thickening star macromolecules, and methods of preparing and using the same. In one aspect of the invention, a surfactant-system thickening star macromolecule is capable of providing surfactant-compatibility, increase the viscosity of a surfactant-containing system, and/or temperature-stability to an aqueous composition.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: July 2, 2019
    Assignee: Pilot Polymer Technologies, Inc.
    Inventors: Liang Huang, Yuanxi Liao, Patrick McCarthy
  • Patent number: 10259901
    Abstract: The present invention relates to multi-arm salt-tolerant star macromolecules, and methods of preparing and using the same. In one aspect of the invention, a salt-tolerant star macromolecule is capable of providing salt-tolerance to an aqueous composition.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: April 16, 2019
    Assignee: Pilot Polymer Technologies, Inc.
    Inventors: Liang Huang, Yuanxi Liao, Patrick McCarthy
  • 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