Abstract: A CNS millbase dispersion, comprises a solvent and up to 0.5 wt % of at least one CNS-derived material dispersed in the millbase dispersion and selected from the group consisting of: carbon nanostructures, fragments of carbon nanostructures, fractured carbon nanotubes, and any combination thereof. The carbon nanostructures or fragments of carbon nanostructures include a plurality of multiwall carbon nanotubes that are crosslinked in a polymeric structure by being branched, interdigitated, entangled and/or sharing common walls, and the fractured carbon nanotubes are derived from the carbon nanostructures and are branched and share common walls with one another. A Brookfield viscosity of the dispersion measured at room temperature at 10 rpm is less than 3000 cP.
Type:
Grant
Filed:
March 11, 2021
Date of Patent:
February 27, 2024
Assignee:
Cabot Corporation
Inventors:
Zhangliang Gui, Jin-nan Liu, Shi-Lin Wang
Abstract: Carbon nanostructures are used to prepare electrode compositions for lithium ion batteries. In one example, carbon nanostructures, fragments of carbon nanostructures and/or fractured carbon nanotubes are provided in an aqueous dispersion that can be used in the manufacture of silicon-containing anodes. The aqueous dispersion can further include another conductive carbon additive such as carbon black.
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
Abstract: Core particles produced in situ or introduced as preformed core particles are coated with a layer of carbon. Non-carbon as well as some carbon-based core materials can be utilized. The resulting carbon coated particles can find applications in rubber products, for instance as reinforcement for tire components.
Type:
Grant
Filed:
November 5, 2021
Date of Patent:
July 4, 2023
Assignee:
Cabot Corporation
Inventors:
David M. Matheu, Theis F. Clarke, David S. Crocker, Frederick H. Rumpf, David C. Reynolds, Dhaval A. Doshi, Martin C. Green
Abstract: Methods to prepare elastomer compounds are described that include dry mixing at least one additive to an elastomer composite masterbatch at low temperatures over a shortened mixing cycle with reduced energy consumption. The elastomer composite masterbatch is produced in a liquid masterbatch process. The resulting elastomer compounds are further described as well as property improvements that can be achieved.
Type:
Grant
Filed:
November 8, 2018
Date of Patent:
September 6, 2022
Assignee:
Cabot Corporation
Inventors:
David C. Reynolds, Gerald D. Adler, Martin C. Green
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
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
Abstract: Core particles produced in situ or introduced as preformed core particles are coated with a layer of carbon. Non-carbon as well as some carbon-based core materials can be utilized. The resulting carbon coated particles can find applications in rubber products, for instance as reinforcement for tire components.
Type:
Grant
Filed:
November 23, 2019
Date of Patent:
December 14, 2021
Assignee:
Cabot Corporation
Inventors:
David M. Matheu, Theis F. Clarke, David S. Crocker, Frederick H. Rumpf, David C. Reynolds, Dhaval A. Doshi, Martin C. Green
Abstract: Techniques are described for preparing a water filtration composition that includes activated carbon having an ash content of at least 10 wt. % and particles of a solubilizing agent. The solubilizing agent forms a water-soluble complex with cations (e.g., calcium ions). This increases the solubility of calcium ions and other scale-forming ions in water, thus suppressing scale formation on interior surfaces of water processing infrastructure. The activated carbon and the solubilizing agent are processed to have particle sizes in a same range, thus enabling the activated carbon and the solubilizing agent to be thoroughly mixed together.
Type:
Grant
Filed:
December 5, 2018
Date of Patent:
September 28, 2021
Assignee:
Cabot Corporation
Inventors:
Mei Xin, William K. Barron, Timothy Wruble
Abstract: The invention provides a process for preparing core-shell composite particles comprising a polyester, polymerized ethylenically unsaturated silane compounds, and optionally a hydrophobic surface treatment. The invention further provides a composite particle comprising a polyester and a radically polymerized ethylenically unsaturated silane compound.
Type:
Grant
Filed:
November 2, 2017
Date of Patent:
August 17, 2021
Assignee:
Cabot Corporation
Inventors:
Dmitry Fomitchev, Hairuo Tu, Paul S. Palumbo, Samir Kumar
Abstract: Methods to make a silica and carbon black elastomer composite with a destabilized dispersion that includes silica are described, along with particle reinforced elastomer composites made from the methods. The advantages achieved with the methods are further described.
Type:
Grant
Filed:
May 31, 2019
Date of Patent:
July 6, 2021
Assignee:
Cabot Corporation
Inventors:
Jincheng Xiong, Martin C. Green, William R. Williams, Dmitry Fomitchev, Gerald D. Adler, Duane G. McDonald, Ron Grosz, Michael D. Morris
Abstract: An electrode for an energy storage device includes carbon black particles having (a) a Brunauer-Emmett-Teller (BET) surface area ranging from 70 to 120 m2/g; (b) an oil absorption number (OAN) ranging from 180 to 310 mL/100 g; (c) a surface energy less than or equal to 15 mJ/m2; and (d) either an La crystallite size less than or equal to 29 ?, or a primary particle size less than or equal to 24 nm.
Type:
Grant
Filed:
July 1, 2019
Date of Patent:
April 6, 2021
Assignee:
Cabot Corporation
Inventors:
Andriy Korchev, Aurelien L. DuPasquier, Miodrag Oljaca, Geoffrey D. Moeser
Abstract: Methods to make a silica elastomer composite with a destabilized dispersion of silica are described, along with silica elastomer composites made from the methods. The advantages achieved with the methods are further described.
Type:
Grant
Filed:
May 24, 2019
Date of Patent:
March 30, 2021
Assignee:
Cabot Corporation
Inventors:
Jincheng Xiong, Martin C. Green, William R. Williams, Dmitry Fomitchev, Gerald D. Adler, Duane G. McDonald, Ron Grosz
Abstract: Disclosed herein are inkjet ink compositions comprising: at least one pigment and at least one polyurethane comprising: at least one polypropylene glycol, and at least one diisocyanate. The at least one polyurethane contains at least 70 wt % polypropylene glycol relative to the at least one polyurethane and has a weight average molecular weight (Mw) of no more than 80,000.
Type:
Grant
Filed:
September 6, 2018
Date of Patent:
March 23, 2021
Assignee:
Cabot Corporation
Inventors:
Jinqi Xu, Jodi A. Bates, Heather E. Clarke, Tianqi Liu, Paul S. Palumbo
Abstract: Carbon blacks such as reinforcing-grade carbon blacks with high structure are described. The carbon black can have the following properties: a statistical thickness surface area (STSA) ranging from 80 m2/g to 150 m2/g, an oil absorption number (OAN) of at least 180 mL/100 g, and a crushed oil absorption number (COAN) of at least 110 mL/100 g. Rubber compounds which incorporate the carbon black also are described.
Type:
Grant
Filed:
April 27, 2018
Date of Patent:
February 23, 2021
Assignee:
Cabot Corporation
Inventors:
Jaesun Choi, Theis F. Clarke, Dhaval A. Doshi
Abstract: An electrode, includes an electrically conductive substrate; and a composition supported by a surface of the electrically conductive substrate, the composition comprising carbon black particles having a Brunauer-Emmett-Teller (BET) surface area ranging from 80 m2/g to 1100 m2/g, an oil absorption number equal to or less than 300 mL/100 g, a surface energy of 10 mJ/m2 or less, and a particle size distribution with a D50 value equal to or less than 165 nm.
Type:
Grant
Filed:
June 15, 2018
Date of Patent:
January 5, 2021
Assignee:
CABOT CORPORATION
Inventors:
Andriy Korchev, Aurelien L. DuPasquier, Miodrag Oljaca, Geoffrey D. Moeser
Abstract: Methods to make a silica elastomer composite with a destabilized dispersion of a never-dried, or as-produced, precipitated silica are described, along with silica elastomer composites made from the methods. The advantages achieved with the methods are further described.
Type:
Grant
Filed:
May 6, 2019
Date of Patent:
January 5, 2021
Assignee:
Cabot Corporation
Inventors:
Jincheng Xiong, Martin C. Green, William R. Williams, Dmitry Fomitchev, Gerald D. Adler, Duane G. McDonald, Ron Grosz, Michael D. Morris