Patents by Inventor Agathagelos Kyrlidis

Agathagelos Kyrlidis 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).

  • Publication number: 20230416585
    Abstract: A composite polymer composition comprising partially crystallized carbon black. The composition exhibits superior thermal transfer properties in plastic formulations. The polymer precursor exhibits excellent rheology when compared to similar compositions comprising traditional carbon blacks. The composite polymers provide for higher loading of more thermally conductive carbon blacks in a variety of composite polymer compositions.
    Type: Application
    Filed: June 28, 2023
    Publication date: December 28, 2023
    Inventors: Federico Villalpando-Paez, George D. Eid, Alyson M. Christopher, Mark J. Hampden-Smith, Santiague Pierre, Alain Thielen, Limeng Chen, Agathagelos Kyrlidis, Bruce E. MacKay
  • Publication number: 20230352746
    Abstract: A carbon-based additive for negative active materials includes carbon nanostructures free of a fiber substrate, carbon nanostructures fused to a fiber substrate or any combination thereof. In many cases, the carbon-based additive further includes carbon black. The additive is used to prepare electrode compositions for lead acid batteries. Batteries that include such electrode compositions are characterized by improved dynamic charge acceptance and lead utilization, typically at acceptable water loss levels. Some of the batteries described herein exhibit a negligible memory effect.
    Type: Application
    Filed: August 20, 2021
    Publication date: November 2, 2023
    Inventors: Yu-Hua Kao, Agathagelos Kyrlidis, Persefoni E. Kechagia, Paolina Atanassova, Tushar Shah
  • Patent number: 11732174
    Abstract: A composite polymer composition comprising partially crystallized carbon black. The composition exhibits superior thermal transfer properties in plastic formulations. The polymer precursor exhibits excellent rheology when compared to similar compositions comprising traditional carbon blacks. The composite polymers provide for higher loading of more thermally conductive carbon blacks in a variety of composite polymer compositions.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: August 22, 2023
    Assignee: Cabot Corporation
    Inventors: Federico Villalpando-Paez, George D. Eid, Alyson M. Christopher, Mark J. Hampden-Smith, Santiague Pierre, Alain Thielen, Limeng Chen, Agathagelos Kyrlidis, Bruce E. MacKay
  • Publication number: 20230159724
    Abstract: Elastomeric compositions are described that include at least one filler that are carbon nanostructures or fragments thereof. Methods to prepare elastomeric compositions are further described. Loadings of the carbon nanostructures can be from about 0.1 phr to about 50 phr or a volume fraction of from about 0.1 vol % to about 20 vol %.
    Type: Application
    Filed: April 16, 2021
    Publication date: May 25, 2023
    Inventors: Limeng Chen, Jiaxi Li, Agathagelos Kyrlidis, Dhaval A. Doshi, Ping Zhang
  • Publication number: 20230090821
    Abstract: Carbon nanostructures are used to prepare curable silicone-based compositions that can be used to manufacture various molded parts for EMI shielding applications. In one illustration, a cured material includes carbon nanostructures, fragments of carbon nanostructures, fractured carbon nanotubes, elongated carbon strands, and/or dispersed carbon nanostructures dispersed in a silicone component.
    Type: Application
    Filed: February 24, 2021
    Publication date: March 23, 2023
    Inventors: Xiaofeng Zhang, Sean Sullivan, Limeng Chen, Jeffrey Gamble, Angelica M. Sanchez Garcia, Agathagelos Kyrlidis, Yakov E. Kutsovsky
  • Publication number: 20220290028
    Abstract: A composite polymer composition comprising partially crystallized carbon black. The composition exhibits superior thermal transfer properties in plastic formulations. The polymer precursor exhibits excellent rheology when compared to similar compositions comprising traditional carbon blacks. The composite polymers provide for higher loading of more thermally conductive carbon blacks in a variety of composite polymer compositions.
    Type: Application
    Filed: May 2, 2022
    Publication date: September 15, 2022
    Inventors: Federico Villalpando-Paez, George D. Eid, Alyson M. Christopher, Mark J. Hampden-Smith, Santiague Pierre, Alain Thielen, Limeng Chen, Agathagelos Kyrlidis, Bruce E. MacKay
  • Publication number: 20220242734
    Abstract: Methods for the production of densified granules of graphene oxide worm (rGOW) particles. Graphene oxide worms are combined with a liquid to produce densified granules of graphene oxide worms. The granules can be easily processed and can incorporated into polymeric compositions such as elastomers. Also disclosed are masterbatch and composite materials made by combining the granules with a polymer.
    Type: Application
    Filed: June 4, 2020
    Publication date: August 4, 2022
    Inventors: Limeng Chen, John L. Gallagher, Yakov E. Kutsovsky, Agathagelos Kyrlidis
  • Patent number: 11352465
    Abstract: Disclosed herein are elastomer compounds comprising: at least one elastomer that is resistant to heat for 70 h at 100° C. such that the at least one elastomer exhibits at least one of the following properties selected from: (a) a change in durometer hardness of no more than 15 points, (b) a change in tensile strength of no more than 40%, and (c) a change in ultimate elongation of no more than 40% The elastomer compound further comprises at least one graphene-based material present in an amount ranging from 0.01 phr to 30 phr relative to the at least one elastomer and at least one carbon black present in an amount ranging from 15 phr to 150 phr relative to the at least one elastomer. Also disclosed are methods of making such compounds, and articles comprising elastomer compounds.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: June 7, 2022
    Assignee: Cabot Corporation
    Inventors: Limeng Chen, Jaesun Choi, Agathagelos Kyrlidis, Oliver W. Tassinari
  • Patent number: 11352536
    Abstract: A composite polymer composition comprising partially crystallized carbon black. The composition exhibits superior thermal transfer properties in plastic formulations. The polymer precursor exhibits excellent rheology when compared to similar compositions comprising traditional carbon blacks. The composite polymers provide for higher loading of more thermally conductive carbon blacks in a variety of composite polymer compositions.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: June 7, 2022
    Assignee: Cabot Corporation
    Inventors: Federico Villalpando-Paez, George D. Eid, Alyson M. Christopher, Mark J. Hampden-Smith, Santiague Pierre, Alain Thielen, Limeng Chen, Agathagelos Kyrlidis, Bruce E. MacKay
  • Publication number: 20220158193
    Abstract: Carbon nanostructures are used to prepare electrode compositions for lithium ion batteries. In one example, a cathode for NCM batteries includes three-dimensional carbon nanostructures which are made of highly entangled nanotubes, fragments of carbon nanostructures and/or fractured nanotubes which are derived from the carbon nanostructures, are branched and share walls with one another. Amounts of carbon nanostructures employed can be less than or equal to 1 weight % relative to the electrode composition.
    Type: Application
    Filed: February 21, 2020
    Publication date: May 19, 2022
    Inventors: Aurelien L. DuPasquier, Yakov E. Kutsovsky, Agathagelos Kyrlidis, Deanna Lanigan, Olha Mashtalir, Miodrag Oljaca, Tushar Shah, Joseph Zapasnik
  • Publication number: 20220111582
    Abstract: A photo-curable composition for use in additive manufacturing, said composition comprising: a) at least one photocurable monomer or oligomer; b) a photoinitiator for polymerization of the monomer; and, from 0.01 to 1 wt. %, based on the weight of the composition, of c) CNS-derived materials. Following polymerization, the resulting polymerized composition has a volume resistivity no greater than 105 ohm·cm.
    Type: Application
    Filed: September 1, 2021
    Publication date: April 14, 2022
    Inventors: Xiaofeng Zhang, Han Zhang, Sean S. Sullivan, Limeng Chen, Angelica M. Sanchez Garcia, Agathagelos Kyrlidis, Tushar Shah, Yakov E. Kutsovsky, Darragh Fitzpatrick, Rachel Hersee, Pablo Walter
  • Publication number: 20200231446
    Abstract: Methods for the production of reduced graphene oxide worm (rGOW) particles. Graphite particles are placed in mixture of nitric acid and sulfuric acid. A supply of chlorate is provided to the graphite reaction mixture while it is agitated by a sparger. The resulting graphite oxide slurry is pumped to a tangential filtration system where it is purified and concentrated. The concentrated slurry is then fed to a high temperature spray dryer where it is simultaneously dried and chemically reduced to produce rGOW particles.
    Type: Application
    Filed: September 28, 2018
    Publication date: July 23, 2020
    Inventors: Ron Grosz, Agathagelos Kyrlidis
  • Publication number: 20190040211
    Abstract: Disclosed herein are elastomer compounds comprising: at least one elastomer that is resistant to heat for 70 h at 100° C. such that the at least one elastomer exhibits at least one of the following properties selected from: (a) a change in durometer hardness of no more than 15 points, (b) a change in tensile strength of no more than 40%, and (c) a change in ultimate elongation of no more than 40% The elastomer compound further comprises at least one graphene-based material present in an amount ranging from 0.01 phr to 30 phr relative to the at least one elastomer and at least one carbon black present in an amount ranging from 15 phr to 150 phr relative to the at least one elastomer. Also disclosed are methods of making such compounds, and articles comprising elastomer compounds.
    Type: Application
    Filed: January 30, 2017
    Publication date: February 7, 2019
    Inventors: Limeng Chen, Jaesun Choi, Agathagelos Kyrlidis, Oliver W. Tassinari
  • Publication number: 20190031939
    Abstract: A composite polymer composition comprising partially crystallized carbon black. The composition exhibits superior thermal transfer properties in plastic formulations. The polymer precursor exhibits excellent rheology when compared to similar compositions comprising traditional carbon blacks. The composite polymers provide for higher loading of more thermally conductive carbon blacks in a variety of composite polymer compositions.
    Type: Application
    Filed: January 25, 2017
    Publication date: January 31, 2019
    Inventors: Federico Villalpando-Paez, George D. Eid, Alyson M. Christopher, Mark J. Hampden-Smith, Santiague Pierre, Alain Thielen, Limeng Chen, Agathagelos Kyrlidis, Bruce E. MacKay
  • Patent number: 10087330
    Abstract: The invention is directed to processes for increasing the surface area of a carbon black starting material and for forming mesoporous carbon black. The process includes the step of contacting a carbon black starting material having a first BET nitrogen surface area with an oxidant in a fluidized bed under conditions effective to form a carbon black product having a second BET nitrogen surface area greater than the first BET nitrogen surface area. The invention is also directed to carbon black product formed by this process.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: October 2, 2018
    Assignee: Cabot Corporation
    Inventors: Martin C. Green, Roscoe Taylor, Geoffrey D. Moeser, Agathagelos Kyrlidis, Raymond M. Sawka
  • Patent number: 9982158
    Abstract: UV curable coatings containing dual phase filler-polymer compositions with high resistivity, low dielectric constant, good optical density, and controlled electrical resistivity are described, and cured coatings or films formed thereof, along with their use in black matrix, black column spacers, and other light shielding coating elements in LCD. Devices having these black matrices, black column spacers, and/or other light shielding coating elements, and methods of preparing and making these various materials and products are also described.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: May 29, 2018
    Assignee: Cabot Corporation
    Inventors: Andriy Korchev, Jeremy K. Huffman, Agathagelos Kyrlidis, Pavel A. Kossyrev, Eugene N. Step, Geoffrey D. Moeser, Qingling Zhang
  • Publication number: 20180021499
    Abstract: Graphene-based materials for sequestering urea from aqueous solutions are provided. The graphene-based materials include graphene aggregates as well as graphene oxides.
    Type: Application
    Filed: February 1, 2016
    Publication date: January 25, 2018
    Inventors: Michael J. Natan, Agathagelos Kyrlidis
  • Publication number: 20180002560
    Abstract: UV curable coatings containing dual phase filler-polymer compositions with high resistivity, low dielectric constant, good optical density, and controlled electrical resistivity are described, and cured coatings or films formed thereof, along with their use in black matrix, black column spacers, and other light shielding coating elements in LCD. Devices having these black matrices, black column spacers, and/or other light shielding coating elements, and methods of preparing and making these various materials and products are also described.
    Type: Application
    Filed: September 13, 2017
    Publication date: January 4, 2018
    Inventors: Andriy Korchev, Jeremy K. Huffman, Agathagelos Kyrlidis, Pavel A. Kossyrev, Eugene N. Step, Geoffrey D. Moeser, Qingling Zhang
  • Patent number: 9790393
    Abstract: UV curable coatings containing dual phase filler-polymer compositions with high resistivity, low dielectric constant, good optical density, and controlled electrical resistivity are described, and cured coatings or films formed thereof, along with their use in black matrix, black column spacers, and other light shielding coating elements in LCD. Devices having these black matrices, black column spacers, and/or other light shielding coating elements, and methods of preparing and making these various materials and products are also described.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: October 17, 2017
    Assignee: Cabot Corporation
    Inventors: Andriy Korchev, Jeremy K. Huffman, Agathagelos Kyrlidis, Pavel A. Kossyrev, Eugene N. Step, Geoffrey D. Moeser, Qingling Zhang
  • Patent number: 9722248
    Abstract: Disclosed herein are cathode formulations comprising graphenes. One embodiment provides a cathode formulation comprising an electroactive material, and graphene interspersed with the electroactive material, wherein a ratio of (mean electroactive material domain size)/(mean graphene lateral domain size) ranges from 3:2 to 15:1. Also disclosed are cathodes comprising such materials and methods of making such cathodes.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: August 1, 2017
    Assignee: Cabot Corporation
    Inventors: Ned J. Hardman, Berislav Blizanac, Aurelien L. DuPasquier, Miodrag Oljaca, Agathagelos Kyrlidis