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).
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Patent number: 11459452Abstract: 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: GrantFiled: July 31, 2018Date of Patent: October 4, 2022Assignee: Dow Global Technologies LLCInventors: Manish K. Mundra, Bharat I. Chaudhary, Robert Emmett Scheid, Jr., Abhijit Ghosh-Dastidar, Peter C. Dreux
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Publication number: 20220280903Abstract: 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: ApplicationFiled: August 26, 2020Publication date: September 8, 2022Inventors: Saurav S. Sengupta, Bharat I. Chaudhary, Manish K. Mundra, Abhijit Ghosh-Dastidar, Jeffrey M. Cogen
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Publication number: 20220275156Abstract: 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: ApplicationFiled: August 26, 2020Publication date: September 1, 2022Inventors: Saurav S. Sengupta, Bharat I. Chaudhary, Manish K. Mundra, Abhijit Ghosh-Dastidar, Jeffrey M. Cogen
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Patent number: 11339292Abstract: 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: GrantFiled: March 1, 2018Date of Patent: May 24, 2022Assignee: Dow Global Technologies LLCInventors: Peter C. Dreux, Vivek Tomer, Manish K. Mundra, Bharat I Chaudhary, Abhijit Ghosh-Dastidar, Rajen M. Patel, Kalyan Sehanobish
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Patent number: 11299616Abstract: 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: GrantFiled: June 6, 2018Date of Patent: April 12, 2022Assignee: Dow Global Technologies LLCInventors: 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
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Patent number: 10968338Abstract: 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: GrantFiled: September 8, 2017Date of Patent: April 6, 2021Assignee: Dow Global Technologies LLCInventors: Manish Mundra, Bharat I. Chaudhary, Abhijit Ghosh-Dastidar, Peter C. Dreux
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Publication number: 20200216650Abstract: 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: ApplicationFiled: July 31, 2018Publication date: July 9, 2020Inventors: Manish K. Mundra, Bharat l. Chaudhary, Robert Emmett Scheid, JR., Abhijit Ghosh-Dastidar, Peter C. Dreux
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Publication number: 20200207972Abstract: 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: ApplicationFiled: June 6, 2018Publication date: July 2, 2020Inventors: 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
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Publication number: 20200010682Abstract: 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: ApplicationFiled: March 1, 2018Publication date: January 9, 2020Inventors: Peter C. Dreux, Vivek Tomer, Manish K. Mundra, Bharat I Chaudhary, Abhijit Ghosh-Dastidar, Rajen M. Patel, Kalyan Sehanobish
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Patent number: 10428201Abstract: 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: GrantFiled: October 14, 2015Date of Patent: October 1, 2019Assignee: Dow Global Technologies LLCInventors: Abhijit Ghosh-Dastidar, Manish Mundra
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Publication number: 20190185654Abstract: 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: ApplicationFiled: September 8, 2017Publication date: June 20, 2019Inventors: Manish Mundra, Bharat I. Chaudhary, Abhijit Ghosh-Dastidar, Peter C. Dreux
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Patent number: 10262767Abstract: 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: GrantFiled: September 14, 2012Date of Patent: April 16, 2019Assignee: Dow Global Technologies LLCInventors: Manish K. Mundra, Robert F. Eaton, Abhijit Ghosh-Dastidar
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Patent number: 10077355Abstract: 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: GrantFiled: October 27, 2016Date of Patent: September 18, 2018Assignee: Dow Global Technologies LLCInventors: Manish Mundra, Abhijit Ghosh-Dastidar, Robert F. Eaton, Lin Fu, Robert M. Campbell, Bruce M. Bell
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Publication number: 20170247528Abstract: 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: ApplicationFiled: October 14, 2015Publication date: August 31, 2017Inventors: Abhijit Ghosh-Dastidar, Manish Mundra
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Publication number: 20170088695Abstract: 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: ApplicationFiled: October 27, 2016Publication date: March 30, 2017Inventors: Manish Mundra, Abhijit Ghosh-Dastidar, Robert F. Eaton, Lin Fu, Robert M. Campbell, Bruce M. Bell
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Patent number: 9593091Abstract: 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: GrantFiled: November 12, 2012Date of Patent: March 14, 2017Assignee: Dow Global Technologies LLCInventors: Saurabh Kaujalgikar, Neeta Rao, Bharat I. Chaudhary, Abhijit Ghosh-Dastidar
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Patent number: 9499681Abstract: 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: GrantFiled: November 12, 2012Date of Patent: November 22, 2016Assignee: Dow Global Technologies LLCInventors: Abhijit Ghosh-Dastidar, Saurabh Kaujalgikar, Bharat I. Chaudhary
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Patent number: 9403965Abstract: 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: GrantFiled: September 13, 2012Date of Patent: August 2, 2016Assignee: Dow Global Technologies LLCInventors: Caroline H. Laufer, Robert F. Eaton, Abhijit Ghosh-Dastidar, Manish Mundra, Bharat I. Chaudhary, Jeffrey M. Cogen, Lin Fu
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Publication number: 20150368431Abstract: 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: ApplicationFiled: March 5, 2014Publication date: December 24, 2015Applicant: Dow Global Technologies LLCInventors: Abhijit Ghosh-Dastidar, Manish Mundra, Brian R. Maurer, Xiaodong Zhang
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Publication number: 20150337112Abstract: 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: ApplicationFiled: November 12, 2012Publication date: November 26, 2015Inventors: Abhijit Ghosh-Dastidar, Saurabh Kaujalgikar, Bharat I. Chaudhary