Patents by Inventor Ayush A. Bafna

Ayush A. Bafna 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: 12240927
    Abstract: A unimodal ethylene-co-1-hexene copolymer that, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by combination of melt elasticity and complex viscosity ratio (shear thinning) properties. A blown film consisting essentially of the unimodal ethylene-co-1-hexene copolymer. A method of synthesizing the unimodal ethylene-co-1-hexene copolymer. A method of making the blown film. A manufactured article comprising the unimodal ethylene-co-1-hexene copolymer.
    Type: Grant
    Filed: March 22, 2024
    Date of Patent: March 4, 2025
    Assignee: UNIVATION TECHNOLOGIES, LLC
    Inventors: Bo Liu, Yi Zhang, Ayush A. Bafna, François Alexandre, Robert N. Reib
  • Patent number: 12234347
    Abstract: A nucleating agent-free and LLDPE-free polyolefin composition for making films with enhanced barrier properties against water vapor and oxygen gas. Related aspects include formulations, manufactured articles, films, and methods.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: February 25, 2025
    Assignee: UNIVATION TECHNOLOGIES, LLC
    Inventors: Nitin Borse, Swapnil B. Chandak, Ayush A. Bafna, Roger L. Kuhlman, Joel D. Wieliczko, John F. Szul, Chuan C. He, Charles D. Lester
  • Publication number: 20250019475
    Abstract: A unimodal ethylene-co-1-butene copolymer that, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by combination of shear thinning and melt elasticity properties. A blown film consisting essentially of the unimodal ethylene-co-1-butene copolymer. A method of synthesizing the unimodal ethylene-co-1-butene copolymer. A method of making the blown film. A manufactured article comprising the unimodal ethylene-co-1-butene copolymer.
    Type: Application
    Filed: October 2, 2024
    Publication date: January 16, 2025
    Inventors: Bo Liu, Yi Zhang, Ayush A. Bafna, François Alexandre, Kevin R. Gross
  • Patent number: 12173096
    Abstract: A unimodal ethylene-co-1-butene copolymer that, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by combination of shear thinning and melt elasticity properties. A blown film consisting essentially of the unimodal ethylene-co-1-butene copolymer. A method of synthesizing the unimodal ethylene-co-1-butene copolymer. A method of making the blown film. A manufactured article comprising the unimodal ethylene-co-1-butene copolymer.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: December 24, 2024
    Assignee: UNIVATION TECHNOLOGIES, LLC
    Inventors: Bo Liu, Yi Zhang, Ayush A. Bafna, François Alexandre, Kevin R. Gross
  • Publication number: 20240293965
    Abstract: A method of increasing bubble stability of a needful high molecular weight bimodal high-density polyethylene resin in need thereof, the method comprising subjecting the needful high molecular weight bimodal high-density polyethylene resin to a determined amount of oxygen tailoring of the resin so as to independently increase both the resin's melt storage modulus G? (at G?=3000 pascals) and complex viscosity ratio SH1000, and thereby make an oxygen-tailored high molecular weight bimodal high-density polyethylene resin having a targeted increase in bubble stability. The method uses a tailoring effective amount of molecular oxygen (O2) to achieve the desired oxygen tailoring. The method uses these advanced rheological properties from dynamic mechanical spectroscopy, but analyzes the data in a different way that is more sensitive to changes in resin composition and properties, and yet achieves a resin regime having a targeted increase in bubble stability.
    Type: Application
    Filed: October 26, 2020
    Publication date: September 5, 2024
    Inventors: Bo Liu, Joel D. Wieliczko, Ayush A. Bafna, Daudi A. Abe
  • Publication number: 20240228683
    Abstract: A unimodal ethylene-co-1-hexene copolymer that, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by combination of melt elasticity and complex viscosity ratio (shear thinning) properties. A blown film consisting essentially of the unimodal ethylene-co-1-hexene copolymer. A method of synthesizing the unimodal ethylene-co-1-hexene copolymer. A method of making the blown film. A manufactured article comprising the unimodal ethylene-co-1-hexene copolymer.
    Type: Application
    Filed: March 22, 2024
    Publication date: July 11, 2024
    Inventors: Bo Liu, Yi Zhang, Ayush A. Bafna, François Alexandre, Robert N. Reib
  • Patent number: 12012472
    Abstract: A unimodal ethylene-co-1-hexene copolymer that, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by combination of melt elasticity and complex viscosity ratio (shear thinning) properties. A blown film consisting essentially of the unimodal ethylene-co-1-hexene copolymer. A method of synthesizing the unimodal ethylene-co-hexene copolymer. A method of making the blown film. A manufactured article comprising the unimodal ethylene-co-1-hexene copolymer.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: June 18, 2024
    Assignee: UNIVATION TECHNOLOGIES, LLC
    Inventors: Bo Liu, Yi Zhang, Ayush A. Bafna, François Alexandre, Robert N. Reib
  • Patent number: 11945889
    Abstract: A bimodal ethylene-co-1-hexene copolymer consisting essentially of a higher molecular weight component and a lower molecular weight component and, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by a combination of high-load melt index, melt flow ratio, and melt elasticity properties. A blown film consisting essentially of the bimodal ethylene-co-1-hexene copolymer. A method of synthesizing the bimodal ethylene-co-1-hexene copolymer. A method of making the blown film. A manufactured article comprising the bimodal ethylene-co-1-hexene copolymer.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: April 2, 2024
    Assignee: Univation Technologies LLC
    Inventors: Bo Liu, Joel D. Wieliczko, John F. Szul, Daudi A. Abe, Roger L. Kuhlman, Ayush A. Bafna, Timothy R. Lynn
  • Patent number: 11845855
    Abstract: A bimodal linear polyethylene composition, products made therefrom, methods of making and using same, and articles containing same.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: December 19, 2023
    Assignee: UNIVATION TECHNOLOGIES LLC
    Inventors: Swapnil Chandak, Nitin Borse, Ayush A. Bafna, Yi Zhang, Timothy R. Lynn, Roger L. Kuhlman, John F. Szul
  • Patent number: 11767385
    Abstract: A bimodal ethylene-co-1-butene copolymer consisting essentially of a higher molecular weight component and a lower molecular weight component and, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by a combination of high-load melt index, melt flow ratio, and melt elasticity properties. A (blown) film consisting essentially of the bimodal ethylene-co-1-butene copolymer and having improved properties. Methods of synthesizing the bimodal ethylene-co-1-butene copolymer and making the blown film. A manufactured article comprising the bimodal ethylene-co-1-butene copolymer.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: September 26, 2023
    Assignee: UNIVATION TECHNOLOGIES LLC
    Inventors: Bo Liu, Chuan He, Daudi A. Abe, Roger L. Kuhlman, Ayush A. Bafna, Timothy R. Lynn
  • Patent number: 11649305
    Abstract: A unimodal ethylene-co-1-hexene copolymer that, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by combination of melt elasticity and complex viscosity ratio (shear thinning)properties. A blown film consisting essentially of the unimodal ethylene-co-1-hexene copolymer. A method of synthesizing the unimodal ethylene-co-1-hexene copolymer. A method of making the blown film. A manufactured article comprising the unimodal ethylene-co-1-hexene copolymer.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: May 16, 2023
    Assignee: Univation Technologies, LLC
    Inventors: Bo Liu, Yi Zhang, Ayush A. Bafna, François Alexandre, Robert N. Reib
  • Publication number: 20220325083
    Abstract: A nucleating agent-free and LLDPE-free polyolefin composition for making films with enhanced barrier properties against water vapor and oxygen gas. Related aspects include formulations, manufactured articles, films, and methods.
    Type: Application
    Filed: September 22, 2020
    Publication date: October 13, 2022
    Inventors: Nitin Borse, Swapnil B. Chandak, Ayush A. Bafna, Roger L. Kuhlman, Joel D. Wieliczko, John F. Szul, Chuan C. He, Charles D. Lester
  • Patent number: 11203653
    Abstract: A bimodal polyethylene composition made with a bimodal catalyst system, wherein the bimodal polyethylene composition has from greater than 0 to 14 weight percent of polyethylene polymers having a weight-average molecular weight of from greater than 0 to 10,000 grams per mol, products made therefrom, methods of making and using same, and articles containing same.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: December 21, 2021
    Assignee: Univation Technologies, LLC
    Inventors: Nitin Borse, Ayush A. Bafna, Cliff R. Mure, Chuan C. He, Timothy R. Lynn, Roger L. Kuhlman, John F. Szul
  • Patent number: 11161924
    Abstract: An ethylene/alpha-olefin copolymer that can be synthesized in a fluidized-bed, gas phase polymerization reactor and made into a blown film. The ethylene/alpha-olefin copolymer is characterized by a bubble stability-effective combination of properties comprising density, melt flow ratio (“I21/I5”), and melt storage modulus G? (G?=3,000 Pa). The synthesis in the FB-GPP reactor is characterized by a property-imparting-effective combination of operating conditions comprising reactor bed temperature and H2/C2 gas molar ratio. An embodiment of the blown film consisting of the ethylene/alpha-olefin copolymer is characterized by enhanced bubble stability. A method of making the ethylene/alpha-olefin copolymer. A film comprising the ethylene/alpha-olefin copolymer. A method of making the film. A manufactured article comprising the film.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: November 2, 2021
    Assignee: Univation Technologies, LLC
    Inventors: Bo Liu, Mark G. Goode, Ayush A. Bafna, Daniel C. Garska, François Alexandre, Timothy R. Lynn
  • Patent number: 11149136
    Abstract: Provided are various bimodal polyethylene, including but not limited to a bimodal polyethylene for a pipe having a density of from 0.9340 to 0.9470 gram/cubic centimeters (g/ccm), a melt index (12) of from 0.1 to 0.7 gram/10 minute, a melt flow ratio (121/12) of from 20 to 90. The bimodal polyethylene includes a high molecular weight polyethylene component and a low molecular weight polyethylene component which are a reaction product of a polymerization process performed in a single reactor and that employs a bimodal polymerization catalyst system. The bimodal polymerization catalyst system includes a bimodal catalyst system of bis(2-pentamethylphenylamido)ethyl)amine Zirconium dibenzyl and either (tetramethylcyclopentadienyl)(n-propylcyclopentadienyl)Zirconium dichloride or (tetramethylcyclopentadienyl)(n-propylcyclopentadienyl)zirconium dimethyl in a 3.0:1 molar ratio; and a trim catalyst of (tetramethylcyclopentadienyl)(n-propylcyclopentadienyl)Zirconium dichloridedimethyl in heptane added to adjust melt.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: October 19, 2021
    Assignee: Univation Technologies, LLC
    Inventors: Nitin Borse, Swapnil Chandak, Ayush A. Bafna, Cliff R. Mure, Yi Zhang, Timothy R. Lynn, Roger L. Kuhlman, John F. Szul
  • Patent number: 11142597
    Abstract: A bimodal linear polyethylene composition, products made therefrom, methods of making and using same, and articles containing same.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: October 12, 2021
    Assignee: Univation Technologies, LLC
    Inventors: Swapnil B. Chandak, Nitin Borse, Ayush A. Bafna, Yi Zhang, Timothy R. Lynn, Roger L. Kuhlman, John F. Szul
  • Publication number: 20210261703
    Abstract: A unimodal ethylene-co-1-hexene copolymer that, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by combination of melt elasticity and complex viscosity ratio (shear thinning) properties. A blown film consisting essentially of the unimodal ethylene-co-1-hexene copolymer. A method of synthesizing the unimodal ethylene-co-1-hexene copolymer. A method of making the blown film. A manufactured article comprising the unimodal ethylene-co-1-hexene copolymer.
    Type: Application
    Filed: July 29, 2019
    Publication date: August 26, 2021
    Inventors: Bo Liu, Yi Zhang, Ayush A. Bafna, François Alexandre, Robert N. Reib
  • Publication number: 20210238323
    Abstract: A bimodal ethylene-co-1-hexene copolymer consisting essentially of a higher molecular weight component and a lower molecular weight component and, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by a combination of high-load melt index, melt flow ratio, and melt elasticity properties. A blown film consisting essentially of the bimodal ethylene-co-1-hexene copolymer. A method of synthesizing the bimodal ethylene-co-1-hexene copolymer. A method of making the blown film. A manufactured article comprising the bimodal ethylene-co-1-hexene copolymer.
    Type: Application
    Filed: June 7, 2019
    Publication date: August 5, 2021
    Inventors: Bo Liu, Joel D. Wieliczko, John F. Szul, Daudi A. Abe, Roger L. Kuhlman, Ayush A. Bafna, Timothy R. Lynn
  • Publication number: 20210179753
    Abstract: A unimodal ethylene-co-1-hexene copolymer that, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by combination of melt elasticity and complex viscosity ratio (shear thinning) properties. A blown film consisting essentially of the unimodal ethylene-co-1-hexene copolymer. A method of synthesizing the unimodal ethylene-co-hexene copolymer. A method of making the blown film. A manufactured article comprising the unimodal ethylene-co-1-hexene copolymer.
    Type: Application
    Filed: July 29, 2019
    Publication date: June 17, 2021
    Inventors: Bo Liu, Yi Zhang, Ayush A. Bafna, François Alexandre, Robert N. Reib
  • Publication number: 20210179754
    Abstract: A bimodal ethylene-co-1-butene copolymer consisting essentially of a higher molecular weight component and a lower molecular weight component and, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by a combination of high-load melt index, melt flow ratio, and melt elasticity properties. A (blown) film consisting essentially of the bimodal ethylene-co-1-butene copolymer and having improved properties. Methods of synthesizing the bimodal ethylene-co-1-butene copolymer and making the blown film. A manufactured article comprising the bimodal ethylene-co-1-butene copolymer.
    Type: Application
    Filed: August 21, 2019
    Publication date: June 17, 2021
    Inventors: Bo Liu, Chuan He, Daudi A. Abe, Roger L. Kuhlman, Ayush A. Bafna, Timothy R. Lynn