Patents by Inventor Abhijit Ghosh-Dastidar

Abhijit Ghosh-Dastidar 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: 11459452
    Abstract: Silane-functionalized compositions comprising a polymeric brominated flame retardant with a weight average molecular weight (Mw) of equal to or greater than (?) 1,000 g/mol exhibit improved burn and crush strength properties as compared to silane-functionalized compositions alike in all aspects except that the Mw of the brominated flame retardant is less than (<) 1,000 g/mol.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: October 4, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Manish K. Mundra, Bharat I. Chaudhary, Robert Emmett Scheid, Jr., Abhijit Ghosh-Dastidar, Peter C. Dreux
  • 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: 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
  • Patent number: 11339292
    Abstract: Articles made from a moisture-curable, polymeric composition comprising in weight percent based on the weight of the composition: (A) 2 to less than 80 weight percent (wt %) of an ethylenic polymer with (1) a crystallinity at room temperature of 34% to 55%, or 65% to 80%, and (2) a melt index (I2) of 0.1 to 50 decigrams per minute (dg/min); (B) 3 to 30 wt % of a halogenated flame retardant; (C) 3 to 30 wt % an inorganic antimony flame retardant; and (D) 0 to 10 wt % of at least one of an inorganic flame retardant other than the inorganic antimony flame retardant, e.g., zinc oxide exhibit enhanced ACBD properties in comparison to articles alike in all respects except made from a composition comprising an ethylenic polymer without the requisite crystallinity at room temperature.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: May 24, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Peter C. Dreux, Vivek Tomer, Manish K. Mundra, Bharat I Chaudhary, Abhijit Ghosh-Dastidar, Rajen M. Patel, Kalyan Sehanobish
  • Patent number: 11299616
    Abstract: Articles made from a moisture-crosslinkable, polymeric composition comprising in weight percent based on the weight of the composition: (A) 10 to 99.99 wt % of a nonpolar ethylenic polymer grafted with silane functionality (Si-g-npPE), the npPE having the following properties before grafting: (1) a vinyl content of 0.2 to 0.7 per 1,000 carbon atoms, (2) a melt index of 1.5 to 7.0 dg/min, (3) a density of 0.913 to 0.965 g/cc, and (4) a molecular weight distribution (Mw/Mn) of equal to or less than 8; (B) 0.01 to 20 wt % of a silanol condensation catalyst; and (C) 0 to 70 wt % of a flame retardant additive; exhibit one or more of desirable (a) silane grafting efficiency; (b) hot creep performance as a cable jacket/insulation after moisture crosslinking; (c) retained dielectric strength after glancing impact as a moisture crosslinked cable construction; and (d) crush resistance as a moisture crosslinked cable construction.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: April 12, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Bharat I. Chaudhary, Manish Talreja, Yichi Zhang, Santosh S. Bawiskar, Peter C. Dreux, Manish K. Mundra, Abhijit Ghosh-Dastidar, Rajen M. Patel, Kalyan Sehanobish, Chieh Ying Heah, Kenneth Hin-Leong Ong
  • Patent number: 10968338
    Abstract: The present disclosure provides a composition. The composition includes a silanol functionalized polyolefin; an anhydride-free brominated flame retardant; antimony trioxide; and the composition has an antimony (Sb) to bromine (Br) molar ratio (Sb:Br molar ratio) from 0.37 to 1.05. The present disclosure also provides a coated conductor. The coated conductor includes a conductor and a coating on the conductor, the coating including a composition. The composition includes a silanol functionalized polyolefin; an anhydride-free brominated flame retardant; antimony trioxide; and the composition has an antimony (Sb) to bromine (Br) molar ratio (Sb:Br molar ratio) from 0.37 to 1.05.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: April 6, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Manish Mundra, Bharat I. Chaudhary, Abhijit Ghosh-Dastidar, Peter C. Dreux
  • Publication number: 20200216650
    Abstract: Silane-functionalized compositions comprising a polymeric brominated flame retardant with a weight average molecular weight (Mw) of equal to or greater than (?) 1,000 g/mol exhibit improved burn and crush strength properties as compared to silane-functionalized compositions alike in all aspects except that the Mw of the brominated flame retardant is less than (<) 1,000 g/mol.
    Type: Application
    Filed: July 31, 2018
    Publication date: July 9, 2020
    Inventors: Manish K. Mundra, Bharat l. Chaudhary, Robert Emmett Scheid, JR., Abhijit Ghosh-Dastidar, Peter C. Dreux
  • Publication number: 20200207972
    Abstract: Articles made from a moisture-crosslinkable, polymeric composition comprising in weight percent based on the weight of the composition: (A) 10 to 99.99 wt % of a nonpolar ethylenic polymer grafted with silane functionality (Si-g-npPE), the npPE having the following properties before grafting: (1) a vinyl content of 0.2 to 0.7 per 1,000 carbon atoms, (2) a melt index of 1.5 to 7.0 dg/min, (3) a density of 0.913 to 0.965 g/cc, and (4) a molecular weight distribution (Mw/Mn) of equal to or less than 8; (B) 0.01 to 20 wt % of a silanol condensation catalyst; and (C) 0 to 70 wt % of a flame retardant additive; exhibit one or more of desirable (a) silane grafting efficiency; (b) hot creep performance as a cable jacket/insulation after moisture crosslinking; (c) retained dielectric strength after glancing impact as a moisture crosslinked cable construction; and (d) crush resistance as a moisture crosslinked cable construction.
    Type: Application
    Filed: June 6, 2018
    Publication date: July 2, 2020
    Inventors: Bharat I. Chaudhary, Manish Talreja, Yichi Zhang, Santosh S, Bawiskar, Peter C. Dreux, Manish K. Mundra, Abhijit Ghosh-Dastidar, Rajen M. Patel, Kalyan Sehanobish, Chieh Ying Heah, Kenneth Hin-Leong Ong
  • Publication number: 20200010682
    Abstract: Articles made from a moisture-curable, polymeric composition comprising in weight percent based on the weight of the composition: (A) 2 to less than 80 weight percent (wt %) of an ethylenic polymer with (1) a crystallinity at room temperature of 34% to 55%, or 65% to 80%, and (2) a melt index (I2) of 0.1 to 50 decigrams per minute (dg/min); (B) 3 to 30 wt % of a halogenated flame retardant; (C) 3 to 30 wt % an inorganic antimony flame retardant; and (D) 0 to 10 wt % of at least one of an inorganic flame retardant other than the inorganic antimony flame retardant, e.g., zinc oxide exhibit enhanced ACBD properties in comparison to articles alike in all respects except made from a composition comprising an ethylenic polymer without the requisite crystallinity at room temperature.
    Type: Application
    Filed: March 1, 2018
    Publication date: January 9, 2020
    Inventors: Peter C. Dreux, Vivek Tomer, Manish K. Mundra, Bharat I Chaudhary, Abhijit Ghosh-Dastidar, Rajen M. Patel, Kalyan Sehanobish
  • Patent number: 10428201
    Abstract: The present disclosure is directed to a plasticizer composition, polymeric compositions containing the plasticizer composition, and coated conductors comprising the polymeric composition. The plasticizer composition comprises an epoxidized fatty acid alkyl ester having an APHA color value of less than 100, a triepoxide content of at least 6.5 weight percent, and an oxirane oxygen content of at least 5 grams oxirane per 100 grams of epoxidized fatty acid alkyl ester.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: October 1, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Abhijit Ghosh-Dastidar, Manish Mundra
  • Publication number: 20190185654
    Abstract: The present disclosure provides a composition. The composition includes a silanol functionalized polyolefin; an anhydride-free brominated flame retardant; antimony trioxide; and the composition has an antimony (Sb) to bromine (Br) molar ratio (Sb:Br molar ratio) from 0.37 to 1.05. The present disclosure also provides a coated conductor. The coated conductor includes a conductor and a coating on the conductor, the coating including a composition. The composition includes a silanol functionalized polyolefin; an anhydride-free brominated flame retardant; antimony trioxide; and the composition has an antimony (Sb) to bromine (Br) molar ratio (Sb:Br molar ratio) from 0.37 to 1.05.
    Type: Application
    Filed: September 8, 2017
    Publication date: June 20, 2019
    Inventors: Manish Mundra, Bharat I. Chaudhary, Abhijit Ghosh-Dastidar, Peter C. Dreux
  • Patent number: 10262767
    Abstract: The present disclosure is directed to a plasticizer, a polymeric composition containing the plasticizer, and conductors coated with the polymeric composition. The plasticizer includes a blend of an epoxidized soybean oil and a trans-esterified epoxidized fatty acid methyl ester. The trans-esterified epoxidized fatty acid methyl ester has an oxirane value greater than or equal to 6.8%. The plasticizer, the polymeric composition, and the coated conductor retain color during heat aging.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: April 16, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Manish K. Mundra, Robert F. Eaton, Abhijit Ghosh-Dastidar
  • Patent number: 10077355
    Abstract: The present disclosure is directed to a plasticizer composition, polymeric compositions containing the plasticizer composition, and conductors coated with the polymeric composition. The plasticizer composition includes a first plasticizer comprising epoxidized fatty acid alkyl esters and a second plasticizer comprising an epoxidized natural oil. The plasticizer composition, first plasticizer, and/or second plasticizer can undergo one or more color-reducing treatment processes, such as distillation, filtration, and/or peroxide treatment.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: September 18, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Manish Mundra, Abhijit Ghosh-Dastidar, Robert F. Eaton, Lin Fu, Robert M. Campbell, Bruce M. Bell
  • Publication number: 20170247528
    Abstract: The present disclosure is directed to a plasticizer composition, polymeric compositions containing the plasticizer composition, and coated conductors comprising the polymeric composition. The plasticizer composition comprises an epoxidized fatty acid alkyl ester having an APHA color value of less than 100, a triepoxide content of at least 6.5 weight percent, and an oxirane oxygen content of at least 5 grams oxirane per 100 grams of epoxidized fatty acid alkyl ester.
    Type: Application
    Filed: October 14, 2015
    Publication date: August 31, 2017
    Inventors: Abhijit Ghosh-Dastidar, Manish Mundra
  • Publication number: 20170088695
    Abstract: The present disclosure is directed to a plasticizer composition, polymeric compositions containing the plasticizer composition, and conductors coated with the polymeric composition. The plasticizer composition includes a first plasticizer comprising epoxidized fatty acid alkyl esters and a second plasticizer comprising an epoxidized natural oil. The plasticizer composition, first plasticizer, and/or second plasticizer can undergo one or more color-reducing treatment processes, such as distillation, filtration, and/or peroxide treatment.
    Type: Application
    Filed: October 27, 2016
    Publication date: March 30, 2017
    Inventors: Manish Mundra, Abhijit Ghosh-Dastidar, Robert F. Eaton, Lin Fu, Robert M. Campbell, Bruce M. Bell
  • Patent number: 9593091
    Abstract: Methods for making epoxidized fatty acid alkyl esters. Such epoxidized fatty acid alkyl esters can be prepared by epoxidizing a natural oil with an acid and a peroxide. Residual acid in the epoxidized natural oil is not neutralized, such as with a base, prior to esterification to produce the epoxidized fatty acid alkyl esters. Epoxidized fatty acid alkyl esters can be employed in plasticizers, either alone or in combination with other plasticizers, such as epoxidized natural oils. Such plasticizers in turn may be used in the formation of polymeric compositions.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: March 14, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Saurabh Kaujalgikar, Neeta Rao, Bharat I. Chaudhary, Abhijit Ghosh-Dastidar
  • Patent number: 9499681
    Abstract: Epoxidized fatty acid alkyl esters and methods for making epoxidized fatty acid alkyl esters. Such epoxidized fatty acid alkyl esters can be prepared by epoxidizing fatty acid alkyl esters with an acid and a peroxide. Epoxidation can be performed under controlled reaction conditions to provide epoxidized fatty acid alkyl esters having an iodine value in the range of from 4 to 15 g I2/100 g of epoxidized fatty acid alkyl esters. Epoxidized fatty acid alkyl esters can be employed in plasticizer compositions, either alone or in combination with other plasticizers, such as epoxidized natural oils. Such plasticizers in turn may be used in the formation of polymeric compositions.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: November 22, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Abhijit Ghosh-Dastidar, Saurabh Kaujalgikar, Bharat I. Chaudhary
  • Patent number: 9403965
    Abstract: The present disclosure is directed to a plasticizer, polymeric compositions containing the plasticizer, and conductors coated with the polymeric composition. The plasticizer includes (i) an epoxidized fatty acid methyl ester, (ii) an epoxidized natural oil, and (iii) an epoxidized tallate ester. Polymeric compositions containing a polymeric resin and the plasticizer exhibit a weight loss less than 50 mg/cm2 after exposure to 100° C. for seven days. Conductors coated with the polymeric composition (containing the plasticizer) pass the low temperature unwind test of UL719 and exhibit a weight loss less than 50 mg/cm2 after exposure to 100° C. for seven days.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: August 2, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Caroline H. Laufer, Robert F. Eaton, Abhijit Ghosh-Dastidar, Manish Mundra, Bharat I. Chaudhary, Jeffrey M. Cogen, Lin Fu
  • Publication number: 20150368431
    Abstract: Epoxidized fatty acid alkyl esters produced, at least in part, from a natural-oil soap stock and methods for making such epoxidized fatty acid alkyl esters. Epoxidized fatty acid alkyl esters can be employed in plasticizer compositions in combination with at least one epoxidized natural oil. Such plasticizers can be employed in preparing polymeric compositions comprising a polymeric resin, such as polyvinyl chloride, and the plasticizer. Such polymeric compositions can, in turn, be employed in making various articles of manufacture, such as coatings or jackets for wires and cables.
    Type: Application
    Filed: March 5, 2014
    Publication date: December 24, 2015
    Applicant: Dow Global Technologies LLC
    Inventors: Abhijit Ghosh-Dastidar, Manish Mundra, Brian R. Maurer, Xiaodong Zhang
  • Publication number: 20150337112
    Abstract: Epoxidized fatty acid alkyl esters and methods for making epoxidized fatty acid alkyl esters. Such epoxidized fatty acid alkyl esters can be prepared by epoxidizing fatty acid alkyl esters with an acid and a peroxide. Epoxidation can be performed under controlled reaction conditions to provide epoxidized fatty acid alkyl esters having an iodine value in the range of from 4 to 15 g I2/100 g of epoxidized fatty acid alkyl esters. Epoxidized fatty acid alkyl esters can be employed in plasticizer compositions, either alone or in combination with other plasticizers, such as epoxidized natural oils. Such plasticizers in turn may be used in the formation of polymeric compositions.
    Type: Application
    Filed: November 12, 2012
    Publication date: November 26, 2015
    Inventors: Abhijit Ghosh-Dastidar, Saurabh Kaujalgikar, Bharat I. Chaudhary