Patents by Inventor Marc Hillmyer

Marc Hillmyer 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: 11193906
    Abstract: An electrode and a method of making an electrode includes treating polymers that contain functional groups, which by surface functionalization, such as hydrolysis, ozone treatment or carbon-carbon double-bond oxidation to produce hydroxyl functional groups on the surface. Reacting methacryloyl chloride with the resulting hydroxyl functional groups thereby providing a reactive surface. Photopolymerizing or thermal polymerization of crosslinked acrylate or methacrylate polymers on the reactive surface to produce a membrane covalently bonded to the underlying substrate. In addition such an electrode can also be produced on a polystyrene substrate by reacting methacryloyl chloride with the polystyrene substrate and photopolymerizing or thermally polymerizing to produce crosslinked acrylate or methacrylate polymers on the reactive surface to produce a membrane covalently bonded to the underlying polystyrene substrate.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: December 7, 2021
    Assignee: Regents of the University of Minnesota
    Inventors: Evan Anderson, Philippe Buhlmann, Sujay Chopade, Marc Hillmyer, Tim Lodge
  • Publication number: 20180215865
    Abstract: Gem-dialkyl cyclooctene monomers, telechelic prepolymers prepared by ring opening metathesis polymerization of the monomers, and polymers such as polyurethanes comprising the reaction product of the prepolymer and a co-monomer such as a polyisocyanate.
    Type: Application
    Filed: July 14, 2016
    Publication date: August 2, 2018
    Applicant: Regents of the University of Minnesota
    Inventors: Marc Hillmyer, Yanzhao Wang
  • Publication number: 20150210821
    Abstract: A composition comprising a block copolymer that includes at least one polyester block and at least one linear polyolefin block, wherein the composition is in the form of a nano-structured, bicontinuous composite that includes a continuous matrix phase and a second continuous phase. The continuous matrix phase comprises the linear polyolefin block of the block copolymer, and the second continuous phase comprises the polyester block of the block copolymer. The composite may be treated to remove the polyester block, thereby forming a plurality of nano-pores.
    Type: Application
    Filed: March 12, 2015
    Publication date: July 30, 2015
    Inventors: Marc Hillmyer, Louis M. Pitet, Mark Amendt
  • Patent number: 9051421
    Abstract: A composition comprising a block copolymer that includes at least one polyester block and at least one linear polyolefin block, wherein the composition is in the form of a nano-structured, bicontinuous composite that includes a continuous matrix phase and a second continuous phase. The continuous matrix phase comprises the linear polyolefin block of the block copolymer, and the second continuous phase comprises the polyester block of the block copolymer. The composite may be treated to remove the polyester block, thereby forming a plurality of nano-pores.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: June 9, 2015
    Assignee: Regents of the University of Minnesota
    Inventors: Marc Hillmyer, Louis Pitet, Mark Amendt
  • Patent number: 8420704
    Abstract: A process for preparing a polymer composite that includes reacting (a) a multi-functional monomer and (b) a block copolymer comprising (i) a first block and (ii) a second block that includes a functional group capable of reacting with the multi-functional monomer, to form a crosslinked, nano-structured, bi-continuous composite. The composite includes a continuous matrix phase and a second continuous phase comprising the first block of the block copolymer.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: April 16, 2013
    Assignee: Regents of the University of Minnesota
    Inventors: Marc Hillmyer, Liang Chen
  • Publication number: 20130041055
    Abstract: A composition comprising a block copolymer that includes at least one polyester block and at least one linear polyolefin block, wherein the composition is in the form of a nano-structured, bicontinuous composite that includes a continuous matrix phase and a second continuous phase. The continuous matrix phase comprises the linear polyolefin block of the block copolymer, and the second continuous phase comprises the polyester block of the block copolymer. The composite may be treated to remove the polyester block, thereby forming a plurality of nano-pores.
    Type: Application
    Filed: March 11, 2011
    Publication date: February 14, 2013
    Applicant: REGENTS OF THE UNIVERSITY OF MINNESOTA
    Inventors: Marc Hillmyer, Louis Pitet, Mark Amendt
  • Patent number: 8203007
    Abstract: The invention described herein provides a novel lactide monomer derivative and process for preparing the lactide monomer derivative. The monomer derivative of the invention is bifunctional in nature, and can be employed a variety of efficient synthesis processes to prepare various polymers. Further, the bifunctional monomer derivative can be used to prepare various intermediate-stage compounds and polymers, which in turn can be used to synthesize other compounds, polymers, copolymers and composites. The lactide monomer derivative has a bifunctional norbornene spiro lactide structure, spiro[6-methyl-1,4-dioxane-2,5-dione-3,2?-bicyclo[2.2.1]hept[5]ene], and structure as follows: and stereoisomers thereof. The lactide monomer derivative is bifunctional in that either 1) the norbornene ring, 2) lactide ring, or 3) both, can be opened and used in polymer synthesis for the backbone or the reactive branch for other polymeric syntheses.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: June 19, 2012
    Assignee: Regents of the University of Minnesota
    Inventors: Feng Jing, Marc Hillmyer
  • Patent number: 7879270
    Abstract: A process for producing a dilatation balloon by extruding a multiblock copolymer composition to form an extrudate comprising phase-separated glassy, rubber, and semicrystalline microdomains that are macroscopically ordered in a perpendicular alignment. The balloon formed by the process demonstrates, during inflation, a true stress vs. nominal strain response curve comprising a first zone representative of a low modulus balloon, a second zone representative of a high strength balloon, and a sharp transition from the first zone to the second zone.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: February 1, 2011
    Assignees: Medtronic, Inc, Regents of the University of Minnesota
    Inventors: Ashish Varma, Kimberly A. Chaffin, Frank Bates, Marc Hillmyer, Lisa Lim
  • Publication number: 20100320634
    Abstract: A process for producing a dilatation balloon by extruding a multiblock copolymer composition to form an extrudate comprising phase-separated glassy, rubber, and semicrystalline microdomains that are macroscopically ordered in a perpendicular alignment. The balloon formed by the process demonstrates, during inflation, a true stress vs. nominal strain response curve comprising a first zone representative of a low modulus balloon, a second zone representative of a high strength balloon, and a sharp transition from the first zone to the second zone.
    Type: Application
    Filed: August 26, 2010
    Publication date: December 23, 2010
    Inventors: Ashish Varma, Kimberly A. Chaffin, Frank Bates, Marc Hillmyer, Lisa Lim
  • Publication number: 20100292077
    Abstract: A process for preparing a polymer composite that includes reacting (a) a multi-functional monomer and (b) a block copolymer comprising (i) a first block and (ii) a second block that includes a functional group capable of reacting with the multi-functional monomer, to form a crosslinked, nano-structured, bi-continuous composite. The composite includes a continuous matrix phase and a second continuous phase comprising the first block of the block copolymer.
    Type: Application
    Filed: July 18, 2008
    Publication date: November 18, 2010
    Inventors: Marc Hillmyer, Liang Chen
  • Publication number: 20090306333
    Abstract: The invention described herein provides a novel lactide monomer derivative and process for preparing the lactide monomer derivative. The monomer derivative of the invention is bifunctional in nature, and can be employed a variety of efficient synthesis processes to prepare various polymers. Further, the bifunctional monomer derivative can be used to prepare various intermediate-stage compounds and polymers, which in turn can be used to synthesize other compounds, polymers, copolymers and composites. The lactide monomer derivative has a bifunctional norbornene spiro lactide structure, spiro[6-methyl-1,4-dioxane-2,5-dione-3,2?-bicyclo[2.2.1]hept[5]ene], and structure as follows: and stereoisomers thereof. The lactide monomer derivative is bifunctional in that either 1) the norbornene ring, 2) lactide ring, or 3) both, can be opened and used in polymer synthesis for the backbone or the reactive branch for other polymeric syntheses.
    Type: Application
    Filed: June 8, 2009
    Publication date: December 10, 2009
    Applicant: Regents of the University of Minnesota
    Inventors: Feng Jing, Marc Hillmyer
  • Publication number: 20090140449
    Abstract: A self-wrapping dilatation balloon comprising a multiblock copolymer having high elasticity and elastic recovery from nominal strains greater than about 30% is described. Also described herein, is a polymeric extrudate for making a dilatation balloon comprising a multiblock copolymer having tensile strength in the range of about 50 MPa to about 450 MPa, strain at break in the range of about 50% to about 600% and substantially complete elastic recovery from nominal strains of at least about 30%. The extrudate has phase-separated microdomains that are macroscopically aligned in parallel, perpendicular, transverse or a combination thereof. Also described herein is a process for producing a polymeric extrudate for use as a dilatation balloon. The process comprises extruding a multiblock copolymer mixture or composition to form an extrudate.
    Type: Application
    Filed: October 30, 2008
    Publication date: June 4, 2009
    Inventors: Ashish Varma, Kimberly A. Chaffin, Frank Bates, Marc Hillmyer, Lisa Lim, Tamotsu Harada
  • Publication number: 20070083019
    Abstract: A synthetic route is provided to prepare poly(?-hydroxycarboxylic acid) polymers via the ring-opening polymerization of ?-hydroxycarboxylic acid cyclic oligomers. The cyclic oligomers can be prepared directly from biorenewable sources, such as 3-hydroxypropionic acid. The method can be used to prepare high molecular weight polymers from the cyclic oligomers. Good molecular weight control can be obtained for both solution state and melt polymerizations.
    Type: Application
    Filed: October 6, 2006
    Publication date: April 12, 2007
    Inventors: Donghui Zhang, William Tolman, Marc Hillmyer
  • Publication number: 20050098914
    Abstract: A self-wrapping dilatation balloon comprising a multiblock copolymer having high elasticity and elastic recovery from nominal strains greater than about 30% is described. Also described herein, is a polymeric extrudate for making a dilatation balloon comprising a multiblock copolymer having tensile strength in the range of about 50 MPa to about 450 MPa, strain at break in the range of about 50% to about 600% and substantially complete elastic recovery from nominal strains of at least about 30%. The extrudate has phase-separated microdomains that are macroscopically aligned in parallel, perpendicular, transverse or a combination thereof. Also described herein is a process for producing a polymeric extrudate for use as a dilatation balloon. The process comprises extruding a multiblock copolymer mixture or composition to form an extrudate.
    Type: Application
    Filed: August 18, 2004
    Publication date: May 12, 2005
    Inventors: Ashish Varma, Kimberly Chaffin, Frank Bates, Marc Hillmyer, Lisa Lim, Tamotsu Harada