Patents by Inventor Saurav S. Sengupta

Saurav S. Sengupta 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: 11685823
    Abstract: Crosslinkable polymeric compositions comprising an ethylene-based polymer, an organic peroxide, and an amine-functionalized interpolymer. Such crosslinkable polymeric compositions and their crosslinked forms can be employed as polymeric layers in wire and cable applications, such as insulation in power cables.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: June 27, 2023
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Timothy J. Person, Manish Talreja, Jeffrey M. Cogen, Saurav S. Sengupta
  • Publication number: 20220298309
    Abstract: A mechanical agitation-free method of making a homogeneous mixture of polyvinyl chloride solids and at least one liquid additive and/or particulate solid additive without mechanically-agitating or melting the polyvinyl chloride solids during the making. The method comprises applying acoustic energy at a frequency of from 20 to 100 hertz to a heterogeneous mixture comprising the polyvinyl chloride solids and the liquid additive and/or particulate solid additive for a period of time sufficient to substantially intermix the polyvinyl chloride solids and the liquid additive and/or particulate solid additive, while maintaining temperature of the heterogeneous mixture above the freezing point of the liquid additive, below the melting point of the particulate solid additive, and below the melting temperature of the polyvinyl chloride solids, thereby making the homogeneous mixture without mechanically-agitating or melting the polyvinyl chloride solids.
    Type: Application
    Filed: August 26, 2020
    Publication date: September 22, 2022
    Applicant: Dow Global Technologies LLC
    Inventors: Bharat I. Chaudhary, Saurav S. Sengupta
  • Publication number: 20220281138
    Abstract: A method of making a homogeneous mixture of polyolefin solids and carbon solids without melting the polyolefin solids during the making The method comprises applying acoustic energy at a frequency of from 20 to 100 hertz to a heterogeneous mixture comprising the polyolefin solids and the carbon solids for a period of time sufficient to substantially intermix the polyolefin solids and the carbon solids together while maintaining temperature of the heterogeneous mixture below the melting temperature of the polyolefin solids, thereby making the homogeneous mixture without melting the polyolefin solids.
    Type: Application
    Filed: August 26, 2020
    Publication date: September 8, 2022
    Inventors: Mohamed Esseghir, Saurav S. Sengupta
  • Publication number: 20220280903
    Abstract: A method of making a homogeneous mixture of polyolefin solids and liquid additive without melting the polyolefin solids during the making The method comprises applying acoustic energy at a frequency of from 20 to 100 hertz to a heterogeneous mixture comprising the polyolefin solids and the liquid additive for a period of time sufficient to substantially intermix the polyolefin solids and the liquid additive together and while maintaining temperature of the heterogeneous mixture above the freezing point of the at least one liquid additive and below the melting temperature of the polyolefin solids, thereby making the homogeneous mixture without melting the polyolefin solids.
    Type: Application
    Filed: August 26, 2020
    Publication date: September 8, 2022
    Inventors: Saurav S. Sengupta, Bharat I. Chaudhary, Manish K. Mundra, Abhijit Ghosh-Dastidar, Jeffrey M. Cogen
  • Publication number: 20220282047
    Abstract: A method of making a homogeneous mixture of polyolefin solids and an organic peroxide without melting the polyolefin solids during the making. The method comprises applying acoustic energy at a frequency of from 20 to 100 hertz to a heterogeneous mixture comprising the polyolefin solids and the organic peroxide for a period of time sufficient to substantially intermix the polyolefin solids and the organic peroxide together while maintaining temperature of the heterogeneous mixture below the melting temperature of the polyolefin solids, thereby making the homogeneous mixture without melting the polyolefin solids.
    Type: Application
    Filed: August 26, 2020
    Publication date: September 8, 2022
    Inventors: Saurav S. Sengupta, Timothy J. Person, Paul J. Caronia, Neil W. Dunchus
  • Publication number: 20220275156
    Abstract: A method of making a homogeneous mixture of polyolefin solids and a particulate solid additive without melting the polyolefin solids or the particulate solid additive during the making. The method comprises applying acoustic energy at a frequency of from 20 to 100 hertz to a heterogeneous mixture comprising the polyolefin solids and the particulate solid additive for a period of time sufficient to substantially intermix the polyolefin solids and the particulate solid additive together and while maintaining temperature of the heterogeneous mixture below the melting point of the at least one particulate solid additive and below the melting temperature of the polyolefin solids, thereby making the homogeneous mixture without melting the polyolefin solids or the at least one particulate solid additive.
    Type: Application
    Filed: August 26, 2020
    Publication date: September 1, 2022
    Inventors: Saurav S. Sengupta, Bharat I. Chaudhary, Manish K. Mundra, Abhijit Ghosh-Dastidar, Jeffrey M. Cogen
  • Publication number: 20210363277
    Abstract: A copolymer of ethylene and hydrolysable silane includes from 0.1 wt % to 5.0 wt % hydrolysable silane groups and has a Mz(abs)/Mw(abs) of less than or equal to 9.5; a ratio of Mz(abs)/Mw(abs) to polydispersity of less than or equal to 1.5; a polydispersity of 6.6 or greater; a Density×Polydispersity of 6.0 or greater; or an Amorphous Content at Room Temperature×Polydispersity of 360 or greater. Methods for forming a moisture-crosslinkable polymer composition include forming a copolymer of ethylene and hydrolysable silane at a polymerization temperature of greater than or equal to 180° C. to less than or equal to 400° C. at a pressure from 5,000 psi to 50,000 psi; and adding a silanol condensation catalyst to the copolymer of ethylene and hydrolysable silane.
    Type: Application
    Filed: November 11, 2019
    Publication date: November 25, 2021
    Applicants: Dow Global Technologies LLC, Performance Materials NA, Inc.
    Inventors: Bharat I. Chaudhary, Bruce Michael Hasch, Sarat Munjal, Christopher Eddy, Kevin Paul Rogers, Rajesh P. Paradkar, Arkady Krasovskiy, Manish Talreja, Saurav S. Sengupta
  • Patent number: 10941278
    Abstract: Crosslinkable polymeric compositions comprising an ethylene-based polymer, an organic peroxide, and a crosslinking coagent having at least one N,N-diallylamide functional group. Such crosslinkable polymeric compositions and their crosslinked forms can be employed as polymeric layers in wire and cable applications, such as insulation in power cables.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: March 9, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Yu Cai, Hong Liang Zhang, Yabin Sun, Jeffrey M. Cogen, Saurav S. Sengupta
  • Publication number: 20200181375
    Abstract: Crosslinkable polymeric compositions comprising an ethylene-based polymer, an organic peroxide, and an amine-functionalized interpolymer. Such crosslinkable polymeric compositions and their crosslinked forms can be employed as polymeric layers in wire and cable applications, such as insulation in power cables.
    Type: Application
    Filed: February 13, 2020
    Publication date: June 11, 2020
    Inventors: Timothy J. Person, Manish Talreja, Jeffrey M. Cogen, Saurav S. Sengupta
  • Patent number: 10619034
    Abstract: Crosslinkable polymeric compositions comprising an ethylene-based polymer, an organic peroxide, and an amine-functionalized interpolymer. Such crosslinkable polymeric compositions and their crosslinked forms can be employed as polymeric layers in wire and cable applications, such as insulation in power cables.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: April 14, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Timothy J. Person, Manish Talreja, Jeffrey M. Cogen, Saurav S. Sengupta
  • Patent number: 10577482
    Abstract: A peroxide-crosslinkable composition comprising: (A) A peroxide-crosslinkable polymer, e.g., a polyethylene; (B) A nitrogenous base, e.g., a low molecular weight, or low melting, or liquid nitrogenous base such as triallyl cyanurate (TAC); and (C) One or more antioxidants (AO), e.g., distearylthiodipropionate (DSTDP). The composition is useful in the manufacture of insulation sheaths for high and extra high voltage wire and cable.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: March 3, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Manish Talreja, Jeffrey M. Cogen, Gerrit Groot-Enzerink, Timothy J. Person, Neil W. Dunchus, Gary W. Buckler, Gabriele Goethel, Saurav S. Sengupta, Antoni Adamczyk
  • Patent number: 10453586
    Abstract: A cold shrink article comprising a shaped, stretched and cured composition comprising (i) a blend of silane-grafted ethylene-?-olefin elastomer and a hydroxyl-terminated polyorganosiloxane, (ii) a vinyl-terminated silicone rubber, and (iii) an ethylene-?-olefin elastomer.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: October 22, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Haiyang Yu, Yanli Huo, Mohamed Esseghir, Saurav S. Sengupta, Jeffrey M. Cogen
  • Patent number: 10407568
    Abstract: A cold shrink article made from a composition comprising (A) an ethylene/?-olefin interpolymer; (B) a filler; and (C) an ?,?-unsaturated carboxylic acid. The composition may optionally include additives selected from the group consisting of plasticizer, peroxide curing agent, antioxidant, process additives, flame retardant and combinations thereof.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: September 10, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Haiyang Yu, Yanli Huo, Mohamed Esseghir, Saurav S. Sengupta, Jeffrey M. Cogen
  • Publication number: 20190180890
    Abstract: A cold shrink article comprising a shaped, stretched and cured composition comprising (i) a blend of silane-grafted ethylene-?-olefin elastomer and a hydroxyl-terminated polyorganosiloxane, (ii) a vinyl-terminated silicone rubber, and (iii) an ethylene-?-olefin elastomer.
    Type: Application
    Filed: February 15, 2019
    Publication date: June 13, 2019
    Inventors: Haiyang Yu, Yanli Huo, Mohamed Esseghir, Saurav S. Sengupta, Jeffrey M. Cogen
  • Patent number: 10221299
    Abstract: A peroxide-crosslinkable composition comprising: (A) A peroxide-crosslinkable polymer, e.g., a polyethylene; (B) A nitrogenous base, e.g., a low molecular weight, or low melting, or liquid nitrogenous base such as triallyl cyanurate (TAC); and (C) One or more antioxidants (AO), e.g., distearylthiodipropionate (DSTDP). The composition is useful in the manufacture of insulation sheaths for high and extra high voltage wire and cable.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: March 5, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Manish Talreja, Jeffrey M. Cogen, Gerrit Groot-Enzerink, Timothy J. Person, Neil W. Dunchus, Gary W. Buckler, Gabriele Goethel, Saurav S. Sengupta, Antoni Adamczyk
  • Publication number: 20190040231
    Abstract: A peroxide-crosslinkable composition comprising: (A) A peroxide-crosslinkable polymer, e.g., a polyethylene; (B) A nitrogenous base, e.g., a low molecular weight, or low melting, or liquid nitrogenous base such as triallyl cyanurate (TAC); and (C) One or more antioxidants (AO), e.g., distearylthiodipropionate (DSTDP). The composition is useful in the manufacture of insulation sheaths for high and extra high voltage wire and cable.
    Type: Application
    Filed: October 11, 2018
    Publication date: February 7, 2019
    Inventors: Manish Talreja, Jeffrey M. Cogen, Gerrit Groot-Enzerink, Timothy J. Person, Neil W. Dunchus, Gary W. Buckler, Gabriele Goethel, Saurav S. Sengupta, Antoni Adamczyk
  • Patent number: 10150856
    Abstract: Crosslinkable polymeric compositions comprising an ethylene-based polymer, an organic peroxide, and a diallyl isocyanurate crosslinking coagent. Such crosslinkable polymeric compositions and their crosslinked forms can be employed as polymeric layers in wire and cable applications, such as insulation in power cables.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: December 11, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Yu Cai, Hong Liang Zhang, Yabin Sun, Jeffrey M. Cogen, Saurav S. Sengupta
  • Patent number: 10138353
    Abstract: Crosslinkable polymeric compositions comprising a thermoplastic, non-elastomer ethylene-based polymer, an organic peroxide, and a crosslinking coagent comprising N,N,N?,N?,N?,N?-hexaallyl-1,3,5-triazine-2,4,6-triamine. Such crosslinkable polymeric compositions and their crosslinked forms can be employed as polymeric layers in wire and cable applications, such as insulation in power cables.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: November 27, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Yabin Sun, Yu Cai, Hong Liang Zhang, Jeffrey M. Cogen, Saurav S. Sengupta, Timothy J. Person
  • Publication number: 20180244907
    Abstract: A cold shrink article made from a composition comprising (A) an ethylene/?-olefin interpolymer; (B) a filler; and (C) an ?,?-unsaturated carboxylic acid. The composition may optionally include additives selected from the group consisting of plasticizer, peroxide curing agent, antioxidant, process additives, flame retardant and combinations thereof.
    Type: Application
    Filed: May 1, 2018
    Publication date: August 30, 2018
    Inventors: Haiyang Yu, Yanli Huo, Mohamed Esseghir, Saurav S. Sengupta, Jeffrey M. Cogen
  • Publication number: 20170327666
    Abstract: A peroxide-crosslinkable composition comprising: (A) A peroxide-crosslinkable polymer, e.g., a polyethylene; (B) A nitrogenous base, e.g., a low molecular weight, or low melting, or liquid nitrogenous base such as triallyl cyanurate (TAC); and (C) One or more antioxidants (AO), e.g., distearylthiodipropionate (DSTDP). The composition is useful in the manufacture of insulation sheaths for high and extra high voltage wire and cable.
    Type: Application
    Filed: July 28, 2017
    Publication date: November 16, 2017
    Inventors: Manish Talreja, Jeffrey M. Cogen, Gerrit Groot-Enzernik, Timothy J. Person, Neil W. Dunchus, Gary W. Buckler, Gabriele Goethel, Saurav S. Sengupta, Antoni Adamczyk