Patents by Inventor Christopher John Ellison

Christopher John Ellison 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: 11945945
    Abstract: A resin including up to 99.99 weight percent (wt. %) of a first polyolefin grafted with a functional group selected from an ethylenically unsaturated carboxylic acid, a carboxylic acid anhydride, an ester functional group or a combination thereof; and 0.01 to 3.0 wt. % of a tin oxide-based catalyst, where the resin includes 0.2 wt. % to 1.5 wt. % of the functional group from the first polyolefin, the wt. % based on a total weight of the resin. The first polyolefin can be selected from a polyethylene, a polypropylene, an ethylene/alpha-olefin copolymer, a propylene/alpha-olefin copolymer and combinations thereof. The tin oxide-based catalyst can be selected from dibutyltin oxide, dioctyltin oxide and combinations thereof. The resin can be used in a multilayer structure, where a Layer A comprises the resin and a Layer B comprises a polyester, where a first major surface of Layer A is in adhering contact with the second major surface of Layer B.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: April 2, 2024
    Assignees: Dow Global Technologies LLC, Regents of The University of Minnesota
    Inventors: Kunwei Liu, Alex Michael Jordan, Christopher John Ellison, Christopher Ward Macosko, Christopher M. Thurber, Wenyi Huang, Thomas H. Peterson
  • Publication number: 20230268483
    Abstract: A method of making a porous film includes disposing a slurry on a substrate, solidifying the slurry to yield a film on the substrate, and subliming the organic sublimable material to yield the porous film on the substrate. The slurry includes an electrochemically active material, an electrically conductive material, and a binder dispersed in an organic sublimable material. The electrochemically active material and the electrically conductive material are different. A slurry includes a solid component including an electrochemically active material, an electrically conductive material, and a binder; and a liquid component including an organic sublimable material, wherein the electrochemically active material and the electrically conductive material are different, and the solid component is dispersed in the liquid component.
    Type: Application
    Filed: February 21, 2023
    Publication date: August 24, 2023
    Inventors: Christopher John Ellison, Charles Buddie Mullins, Samantha Nicole Lauro, Joshua Paul Pender, Han Xiao, Jason Alexander Weeks, JR., James Norman Burrow, JR.
  • Publication number: 20230257179
    Abstract: A resealable flap device in the form of a sheet, for applying to or incorporating in packaging, comprises: a lower layer of flexible material, and an upper layer of stiff material. The sheet is cut through both layers to outline a flap portion, the cut leaving an edge in a hinge region, the upper layer being removed behind the line of the hinge region. In this way the flexible lower layer forms a hinge that is easy to handle and does not spring back, while the stiff upper layer maintains the shape of the flap.
    Type: Application
    Filed: April 27, 2023
    Publication date: August 17, 2023
    Inventors: Ian David Michael BELL, Christopher John ELLISON
  • Patent number: 11667448
    Abstract: A resealable flap device in the form of a sheet, for applying to or incorporating in packaging, comprises: a base layer 30 of flexible material, and an upper layer 40 of stiff material. The sheet is cut (15) through both layers to outline a flap portion 14, the cut leaving an edge in a hinge region 18, the upper layer being removed behind the line of the hinge region 18. In this way the flexible base layer forms a hinge 18 that is easy to handle and does not spring back, while the stiff upper layer maintains the shape of the flap.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: June 6, 2023
    Assignee: OPM ADVANCE LIMITED
    Inventors: Ian David Michael Bell, Christopher John Ellison
  • Publication number: 20220195127
    Abstract: This document provides multiblock copolymers comprising: at least one block obtained from a polyester having an average MN of from about 2,000 to about 200,000, wherein the polyester contains one or more terephthalate units; and at least one block obtained from a polyolefin having an average MN of from about 2,000 to about 200,000. This document further provides methods of making and using the multiblock copolymers, and multilayer films, polymer blends, and molded articles comprising the multiblock copolymers.
    Type: Application
    Filed: April 1, 2020
    Publication date: June 23, 2022
    Inventors: Christopher John Ellison, Kevin Michael Miller
  • Publication number: 20210269633
    Abstract: A resin including up to 99.99 weight percent (wt. %) of a first polyolefin grafted with a functional group selected from an ethylenically unsaturated carboxylic acid, a carboxylic acid anhydride, an ester functional group or a combination thereof; and 0.01 to 3.0 wt. % of a tin oxide-based catalyst, where the resin includes 0.2 wt. % to 1.5 wt. % of the functional group from the first polyolefin, the wt. % based on a total weight of the resin. The first polyolefin can be selected from a polyethylene, a polypropylene, an ethylene/alpha-olefin copolymer, a propylene/alpha-olefin copolymer and combinations thereof. The tin oxide-based catalyst can be selected from dibutyltin oxide, dioctyltin oxide and combinations thereof. The resin can be used in a multilayer structure, where a Layer A comprises the resin and a Layer B comprises a polyester, where a first major surface of Layer A is in adhering contact with the second major surface of Layer B.
    Type: Application
    Filed: May 20, 2019
    Publication date: September 2, 2021
    Applicants: Dow Global Technologies LLC, Regents of the University of Minnesota
    Inventors: Kunwei Liu, Alex Michael Jordan, Christopher John Ellison, Christopher Ward Macosko, Christopher M. Thurber, Wenyi Huang, Thomas H. Peterson
  • Publication number: 20200317417
    Abstract: A resealable flap device in the form of a sheet, for applying to or incorporating in packaging, comprises: a base layer 30 of flexible material, and an upper layer 40 of stiff material. The sheet is cut (15) through both layers to outline a flap portion 14, the cut leaving an edge in a hinge region 18, the upper layer being removed behind the line of the hinge region 18. In this way the flexible base layer forms a hinge 18 that is easy to handle and does not spring back, while the stiff upper layer maintains the shape of the flap.
    Type: Application
    Filed: June 23, 2020
    Publication date: October 8, 2020
    Inventors: Ian David Michael BELL, Christopher John ELLISON
  • Patent number: 10730677
    Abstract: A resealable flap device in the form of a sheet, for applying to or incorporating in packaging, comprises: a base layer (30) of flexible material, and an upper layer (40) of stiff material. The sheet is cut (15) through both layers to outline a flap portion (14), the cut leaving an edge in a hinge region (18), the upper layer being removed behind the line of the hinge region (18). In this way the flexible base layer forms a hinge (18) that is easy to handle and does not spring back, while the stiff upper layer maintains the shape of the flap.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: August 4, 2020
    Assignee: OPM ADVANCE LIMITED
    Inventors: Ian David Michael Bell, Christopher John Ellison
  • Patent number: 10239982
    Abstract: The present invention relates to a method for the synthesis and utilization of block copolymer can that form sub-10 nm lamella nanostructures. Such methods have many uses including multiple applications in the semiconductor industry including production of templates for nanoimprint lithography.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: March 26, 2019
    Assignee: Board of Regents The University of Texas System
    Inventors: Carlton Grant Willson, Gregory Blachut, Michael Maher, Yusuke Asano, Christopher John Ellison
  • Patent number: 10167410
    Abstract: Vacuum deposited thin films of material are used to create an interface that non-preferentially interacts with different domains of an underlying block copolymer film. The non-preferential interface prevents formation of a wetting layer and influences the orientation of domains in the block copolymer. The purpose of the deposited polymer is to produce nano structured features in a block copolymer film that can serve as lithographic patterns.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: January 1, 2019
    Assignee: Board of Regents, The University of Texas System
    Inventors: C. Grant Wilson, William J. Durand, Christopher John Ellison, Christopher M. Bates, Takehiro Seshimo, Julia Cushen, Logan J. Santos, Leon Dean, Erica L. Rausch
  • Patent number: 10139724
    Abstract: The concepts described herein involve the use of random copolymer top coats that can be spin coated onto block copolymer thin films and used to control the interfacial energy of the top coat-block copolymer interface. The top coats are soluble in aqueous weak base and can change surface energy once they are deposited onto the block copolymer thin film. The use of self-assembled block copolymers to produce advanced lithographic patterns relies on their orientation control in thin films. Top coats potentially allow for the facile orientation control of block copolymers which would otherwise be quite challenging.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: November 27, 2018
    Assignee: Board of Regents The University of Texas System
    Inventors: C. Grant Willson, Christopher John Ellison, Takehiro Sleshimo, Julia Cushen, Christopher M. Bates, Leon Dean, Logan J. Santos, Erica L. Rausch
  • Publication number: 20180290807
    Abstract: A resealable flap device in the form of a sheet, for applying to or incorporating in packaging, comprises: a base layer (30) of flexible material, and an upper layer (40) of stiff material. The sheet is cut (15) through both layers to outline a flap portion (14), the cut leaving an edge in a hinge region (18), the upper layer being removed behind the line of the hinge region (18). In this way the flexible base layer forms a hinge (18) that is easy to handle and does not spring back, while the stiff upper layer maintains the shape of the flap.
    Type: Application
    Filed: June 13, 2016
    Publication date: October 11, 2018
    Inventors: Ian David Michael BELL, Christopher John ELLISON
  • Publication number: 20170240681
    Abstract: The present invention relates to a method for the synthesis and utilization of block copolymer can that form sub-10 nm lamella nanostructures. Such methods have many uses including multiple applications in the semiconductor industry including production of templates for nanoimprint lithography.
    Type: Application
    Filed: February 22, 2017
    Publication date: August 24, 2017
    Inventors: Carlton Grant Willson, Gregory Blachut, Michael Maher, Yusuke Asano, Christopher John Ellison
  • Patent number: 9314819
    Abstract: The use of self-assembled block copolymer structures to produce advanced lithographic patterns relies on control of the orientation of these structures in thin films. In particular, orientation of cylinders and lamellae perpendicular to the plane of the block copolymer film is required for most applications. The preferred method to achieve orientation is by heating. The present invention involves the use of polarity-switching top coats to control block copolymer thin film orientation by heating. The top coats can be spin coated onto block copolymer thin films from polar casting solvents and they change composition upon thermal annealing to become “neutral”. Top coats allow for the facile orientation control of block copolymers which would otherwise not be possible by heating alone.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: April 19, 2016
    Assignee: Board of Regents, The University of Texas System
    Inventors: Carlton Grant Willson, Christopher John Ellison, Takehiro Seshimo, Julia Cushen, Christopher M Bates, Leon Dean, Logan J Santos, Erica L Rausch, Michael Maher
  • Publication number: 20150370159
    Abstract: The present invention involves the use of random copolymer top coats that can be spin coated onto block copolymer thin films and used to control the interfacial energy of the top coat-block copolymer interface. The top coats are soluble in aqueous weak base and can change surface energy once they are deposited onto the block copolymer thin film. The use of self-assembled block copolymers to produce advanced lithographic patterns relies on their orientation control in thin films. Top coats potentially allow for the facile orientation control of block copolymers which would otherwise be quite challenging.
    Type: Application
    Filed: August 28, 2015
    Publication date: December 24, 2015
    Inventors: Carlton Grant Willson, Christopher John Ellison, Takehiro Sleshimo, Julia Cushen, Christopher M. Bates, Leon Dean, Logan J. Santos, Erica L. Rausch
  • Patent number: 9157008
    Abstract: Random copolymer top coats are described that can be spin coated onto block copolymer thin films and used to control the interfacial energy of the top coat-block copolymer interface. The top coats are soluble in aqueous weak base and can change surface energy once they are deposited onto the block copolymer thin film. The use of self-assembled block copolymers to produce advanced lithographic patterns relies on their orientation control in thin films.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: October 13, 2015
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Carlton Grant Willson, Christopher John Ellison, Takehiro Seshimo, Julia Cushen, Christopher M. Bates, Leon Dean, Logan J. Santos, Erica L. Rausch
  • Patent number: 9120947
    Abstract: The present invention relates to a method the synthesis and utilization of random, cross-linked, substituted polystyrene copolymers as polymeric cross-linked surface treatments (PXSTs) to control the orientation of physical features of a block copolymer deposited over the first copolymer. Such methods have many uses including multiple applications in the semiconductor industry including production of templates for nanoimprint lithography.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: September 1, 2015
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: C. Grant Willson, Christopher M. Bates, Jeffrey Strahan, Christopher John Ellison
  • Patent number: 9120117
    Abstract: A diblock copolymer system that self-assembles at very low molecular weights to form very small features is described. One polymer in the block copolymer contains silicon, and the other polymer is a polylactide. The block copolymer may be synthesized by a combination of anionic and ring opening polymerization reactions. This block copolymer may form nanoporous materials that can be used as etch masks in lithographic patterning.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: September 1, 2015
    Assignee: Board of Regents, The University of Texas System
    Inventors: Christopher John Ellison, Carlton Grant Willson, Julia Cushen, Christopher M. Bates
  • Publication number: 20150232689
    Abstract: The present invention uses vacuum deposited thin films of material to create an interface that non-preferentially interacts with different domains of an underlying block copolymer film. The non-preferential interface prevents formation of a wetting layer and influences the orientation of domains in the block copolymer. The purpose of the deposited polymer is to produce nanostructured features in a block copolymer film that can serve as lithographic patterns.
    Type: Application
    Filed: April 28, 2015
    Publication date: August 20, 2015
    Inventors: Carlton Grant Willson, William J. Durand, Christopher John Ellison, Christopher M. Bates, Takehiro Seshimo, Julia Cushen, Logan J. Santos, Leon Dean, Erica L. Rausch
  • Patent number: 9040121
    Abstract: Vacuum deposited thin films of material are described to create an interface that non-preferentially interacts with different domains of an underlying block copolymer film. The non-preferential interface prevents formation of a wetting layer and influences the orientation of domains in the block copolymer. The purpose of the deposited polymer is to produce nanostructured features in a block copolymer film that can serve as lithographic patterns.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: May 26, 2015
    Assignee: Board of Regents The University of Texas System
    Inventors: C. Grant Willson, William Durand, Christopher John Ellison, Christopher Bates, Takehiro Seshimo, Julia Cushen, Logan Santos, Leon Dean, Erica Rausch