Patents by Inventor Mitchell Anthamatten

Mitchell Anthamatten 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: 12076966
    Abstract: Describes are methods of contacting printing with a shape-memory stamp. For example, disclosed herein are methods of patterning thin films using shape memory contact printing.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: September 3, 2024
    Assignee: The University of Rochester
    Inventors: Mitchell Anthamatten, Alexander A. Shestopalov
  • Patent number: 12023875
    Abstract: Disclosed are methods of using reaction injection molding to mold stimuli-responsive thermosets such as urethane linked poly(caprolactone) networks from polyols and polyisocyanates, as well as polymers prepared by such methods.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: July 2, 2024
    Assignee: THE UNIVERSITY OF ROCHESTER
    Inventor: Mitchell Anthamatten
  • Publication number: 20220340706
    Abstract: A shape-memory polymer that is melt-recyclable with high processability and little performance loss, in contrast to known Crosslinked semicrystalline shape-memory networks that are capable of storing large amounts of elastic energy with negligible plastic deformation but as thermosets are not easily melt-processed or recycled. In examples herein, catalyst-free isocyanate chemistry is used to prepare two linear poly(caprolactone)s with bisurea hydrogen bonding groups periodically positioned along the main chain. Compared to an entangled poly(caprolactone) homopolymer of similar molecular weight, the segmented poly(bisurea)s exhibit minimal stress relaxation when elastically strained at identical conditions. Furthermore, the materials' single relaxation times indicate chain reptation, and at sufficient temperatures, disentanglement occurs rapidly enough to perform melt-processing.
    Type: Application
    Filed: February 24, 2022
    Publication date: October 27, 2022
    Inventor: Mitchell Anthamatten
  • Publication number: 20220266582
    Abstract: Describes are methods of contacting printing with a shape-memory stamp. For example, disclosed herein are methods of patterning thin films using shape memory contact printing.
    Type: Application
    Filed: February 23, 2022
    Publication date: August 25, 2022
    Inventors: Mitchell Anthamatten, Alexander A. Shestopalov
  • Publication number: 20220268982
    Abstract: An optical system that includes a cholesteric glassy liquid crystal film doped with a dye and configured to preferentially absorb light of a first handedness, such as left-hand circularly polarized (LCP) light, but pass light of the opposite handedness, such a right-hand circularly polarized (RCP) light. Adding an anti-reflection coating can further increase the transmission-to-reflection ratio.
    Type: Application
    Filed: January 21, 2022
    Publication date: August 25, 2022
    Inventors: Shaw Chen, Mitchell Anthamatten, Jane Ou
  • Publication number: 20220153605
    Abstract: Mesomorphic ceramic films are fabricated over large areas by blade-coating of nematic lyotropic suspensions, followed by calcination.
    Type: Application
    Filed: October 19, 2021
    Publication date: May 19, 2022
    Inventors: Shaw H. CHEN, Mitchell Anthamatten
  • Publication number: 20200223156
    Abstract: Disclosed are methods of using reaction injection molding to mold stimuli-responsive thermosets such as urethane linked poly(caprolactone) networks from polyols and polyisocyanates, as well as polymers prepared by such methods.
    Type: Application
    Filed: July 13, 2018
    Publication date: July 16, 2020
    Inventor: Mitchell ANTHAMATTEN
  • Patent number: 10647812
    Abstract: Described are shape-memory polymers that have a composite prepolymer crosslinked with a stoichiometric amount of a multifunctional crosslinker, the composite prepolymer having a branched or telechelic prepolymer having a low polydispersity reacted with a non-crystalline chain extender. Also described are methods of making shape-memory polymers by reacting a branched or telechelic prepolymer having a low polydispersity with a non-crystalline chain extender to form a composite prepolymer, and crosslinking a stoichiometric amount of a multifunctional crosslinker with the composite prepolymer, thereby forming the shape-memory polymer.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: May 12, 2020
    Assignee: The University of Rochester
    Inventors: Mitchell Anthamatten, Yuan Meng
  • Patent number: 10377852
    Abstract: Described are shape-memory polymers that have a branched or telechelic prepolymer having a low polydispersity crosslinked with a stoichiometric amount of a multifunctional crosslinker. Also described are methods of making shape-memory polymers by crosslinking a stoichiometric amount of a multifunctional crosslinker with a branched or telechelic prepolymer having a low polydispersity. Methods of measuring the energy storage capacity of a shape-memory polymer are also disclosed.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: August 13, 2019
    Assignee: The University of Rochester
    Inventors: Mitchell Anthamatten, Christopher L. Lewis, Yuan Meng
  • Patent number: 10005883
    Abstract: Described are shape memory polymers and methods of making shape memory polymers and actuators from the shape memory polymers.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: June 26, 2018
    Assignee: The University of Rochester
    Inventors: Mitchell Anthamatten, Yuan Meng
  • Publication number: 20180155492
    Abstract: Described are shape-memory polymers that have a composite prepolymer crosslinked with a stoichiometric amount of a multifunctional crosslinker, the composite prepolymer having a branched or telechelic prepolymer having a low polydispersity reacted with a non-crystalline chain extender. Also described are methods of making shape-memory polymers by reacting a branched or telechelic prepolymer having a low polydispersity with a non-crystalline chain extender to form a composite prepolymer, and crosslinking a stoichiometric amount of a multifunctional crosslinker with the composite prepolymer, thereby forming the shape-memory polymer.
    Type: Application
    Filed: June 6, 2016
    Publication date: June 7, 2018
    Inventors: Mitchell ANTHAMATTEN, Yuan MENG
  • Publication number: 20180086878
    Abstract: Described are shape-memory polymers that have a branched or telechelic prepolymer having a low polydispersity crosslinked with a stoichiometric amount of a multifunctional crosslinker. Also described are methods of making shape-memory polymers by crosslinking a stoichiometric amount of a multifunctional crosslinker with a branched or telechelic prepolymer having a low polydispersity. Methods of measuring the energy storage capacity of a shape-memory polymer are also disclosed.
    Type: Application
    Filed: February 19, 2016
    Publication date: March 29, 2018
    Inventors: Mitchell ANTHAMATTEN, Christopher L. LEWIS, Yuan MENG
  • Publication number: 20170145157
    Abstract: Described are shape memory polymers and methods of making shape memory polymers and actuators from the shape memory polymers.
    Type: Application
    Filed: February 3, 2017
    Publication date: May 25, 2017
    Applicant: The University of Rochester
    Inventors: Mitchell Anthamatten, Yuan Meng
  • Patent number: 9598534
    Abstract: Described are shape memory polymers and methods of making shape memory polymers and actuators from the shape memory polymers.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: March 21, 2017
    Assignee: The University of Rochester
    Inventors: Mitchell Anthamatten, Yuan Meng
  • Publication number: 20160137778
    Abstract: Described are shape memory polymers and methods of making shape memory polymers and actuators from the shape memory polymers.
    Type: Application
    Filed: October 29, 2015
    Publication date: May 19, 2016
    Applicant: The University of Rochester
    Inventors: Mitchell Anthamatten, Yuan Meng