Patents by Inventor Sarat Munjal

Sarat Munjal 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: 20210054182
    Abstract: An insulated wire or cable is made by a process comprising the steps of: (A) extruding onto a covered or uncovered metal conductor or optical fiber a composition having a DF measured at 130° C. (60 Hz, 2 kV) or 120° C. (60 Hz, 8 kV) or 100° C. (60 Hz, 8 kV) of ?0.5% and comprising: (1) a high melt strength ethylene-based polymer made in a tubular reactor, and (2) a peroxide, and (B) crosslinking the high melt strength ethylene-based polymer.
    Type: Application
    Filed: November 6, 2020
    Publication date: February 25, 2021
    Inventors: Bharat I. Chaudhary, Christopher R. Eddy, Sarat Munjal, Kalyan Sehanobish, Hayley Brown, John O. Osby, Jose Ortega
  • Patent number: 10844209
    Abstract: An insulated wire or cable is made by a process comprising the steps of: (A) extruding onto a covered or uncovered metal conductor or optical fiber a composition having a DF measured at 130° C. (60 Hz, 2 kV) or 120° C. (60 Hz, 8 kV) or 100° C. (60 Hz, 8 kV) of <0.5% and comprising: (1) a high melt strength ethylene-based polymer made in a tubular reactor, and (2) a peroxide, and (B) crosslinking the high melt strength ethylene-based polymer.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: November 24, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Bharat I. Chaudhary, Christopher R. Eddy, Sarat Munjal, Kalyan Sehanobish, Hayley Brown, John Osby, Jose Ortega
  • Publication number: 20200277544
    Abstract: A process to prepare an ethylene-based polymer, said process comprising polymerizing a mixture comprising ethylene, at a pressure greater than, or equal to, 100 MPa, in the presence of at least one free-radical initiator; and in a reactor system comprising at least one reactor and at least one Hyper-compressor, and wherein at least one oil formulation, optionally comprising one or more lubrication agents, is added to the Hyper-compressor; and wherein at least one of the following steps takes place: A) thermally treating the one or more lubrication agents, in an oxygen-free atmosphere, to achieve a peroxide level?10 ppm, based on the weight of the lubrication agent(s), and then adding said agent(s) to the oil formulation, prior to adding the oil formulation to the Hyper-compressor; or B) thermally treating the oil formulation, in an oxygen-free atmosphere, to achieve a peroxide level?10 ppm, based on the weight of the oil formulation, prior to adding the oil formulation to the Hyper-compressor; C) a combinatio
    Type: Application
    Filed: September 19, 2017
    Publication date: September 3, 2020
    Applicant: Dow Global Technologies LLC
    Inventors: Sean W. Ewart, Sarat Munjal, Kefu Sun
  • Patent number: 10647789
    Abstract: A composition comprising an ethylene-based polymer is made by a process comprising the steps of: (A) contacting under first polymerization conditions at least ethylene and at least one molecular catalyst to form a first ethylene-based polymer, and (B) contacting under second polymerization conditions the first ethylene-based polymer of (A) with at least additional ethylene and a carbon-carbon free radical initiator of Structure (I): wherein R1, R2, R3, R4, R5 and R6 are each, independently, hydrogen or a hydrocarbyl group and wherein, optionally, two or more R groups (R1, R2, R3, R4, R5 and R6) form a ring structure, with the proviso that at least one of R2 and R5, and at least one of R3 and R6 is a hydrocarbyl group of at least two carbon atoms, to form the composition.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: May 12, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Sean Ewart, Teresa Karjala, Mehmet Demirors, Richard Keaton, Sarat Munjal, Christopher Eddy
  • Patent number: 10494457
    Abstract: A process to form an ethylene-based polymer, said process comprising at least the following: polymerizing a mixture comprising ethylene, in the presence of at least one free-radical initiator, and in a reactor configuration comprising at least three reaction zones and at least two ethylene feed streams; and wherein the inlet pressure of the first reaction zone is less than, or equal to, 3200 Bar; and wherein the amount of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the first reaction zone is from 40 mole % to 80 mole %, based on the total moles of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the polymerization; and wherein the average polymerization temperature of the first 40 wt % polymer formed (APT40 wt %) (based on the total amount of polymer formed) is less than, or equal to, 200° C.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: December 3, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Otto J. Berbee, Cornelis J F Hosman, Joaquin Flores, Sergio E. Goncalves, Sarat Munjal, Michael E. Bishop, Luiz Rodriguez
  • Patent number: 10457757
    Abstract: A process to form an ethylene-based polymer comprising, in polymerized form, ethylene and at least one acid comonomer, said process comprising polymerizing a reaction mixture comprising the ethylene and the acid comonomer, in a reactor configuration comprising at least one Secondary compressor, at least one pressurization device, and at least one reactor selected from the following: at least one autoclave reactor, at least one tubular reactor, or a combination thereof; and wherein the reaction mixture is polymerized in the presence of at least one free-radical initiator, and at a pressure of at least 1000 Bar; and wherein at least a portion of a comonomer composition comprising at least a portion of the acid comonomer used in the polymerization, is compressed, to form a compressed comonomer composition, in the pressurization device, up to a discharge pressure ranging from 1000 Bar to 4000 Bar, and at a discharge temperature (DT) from 10 C to 100 C; and wherein the compressed comonomer composition bypasses the
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: October 29, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Christopher R. Eddy, Jeffery S. Bradley, Otto J. Berbee, Sarat Munjal, Bryan Gutermuth
  • Publication number: 20180305476
    Abstract: A process to form an ethylene-based polymer, said process comprising at least the following: polymerizing a mixture comprising ethylene, in the presence of at least one free-radical initiator, and in a reactor configuration comprising at least three reaction zones and at least two ethylene feed streams; and wherein the inlet pressure of the first reaction zone is less than, or equal to, 3200 Bar; and wherein the amount of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the first reaction zone is from 40 mole % to 80 mole %, based on the total moles of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the polymerization; and wherein the average polymerization temperature of the first 40 wt % polymer formed (APT40 wt %) (based on the total amount of polymer formed) is less than, or equal to, 200° C.
    Type: Application
    Filed: November 10, 2016
    Publication date: October 25, 2018
    Inventors: Otto J. Berbee, Cornelis J F Hosman, Joaquin Flores, Sergio E. Goncalves, Sarat Munjal, Michael E. Bishop, Luiz Rodriguez
  • Patent number: 10005863
    Abstract: A process to form an ethylene-based polymer including polymerizing ethylene and at least one asymmetrical polyene comprising an “alpha, beta unsaturated-carbonyl end” (“?,? unsaturated-carbonyl end”) and a “C—C double bond end,” wherein the polymerization takes place in the presence of at least one free-radical initiator; and wherein the polymerization takes place in a reactor configuration comprising at least two reaction zones, reaction zone 1 and reaction zone i (i?2), wherein reaction zone i is downstream from reaction zone 1.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: June 26, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Otto J. Berbee, Stefan Hinrichs, Christopher R. Eddy, Sarat Munjal, John O. Osby, Sean W. Ewart
  • Publication number: 20180171042
    Abstract: A composition comprising an ethylene-based polymer is made by a process comprising the steps of: (A) contacting under first polymerization conditions at least ethylene and at least one molecular catalyst to form a first ethylene-based polymer, and (B) contacting under second polymerization conditions the first ethylene-based polymer of (A) with at least additional ethylene and a carbon-carbon free radical initiator of Structure (I): wherein R1, R2, R3, R4, R5 and R6 are each, independently, hydrogen or a hydrocarbyl group and wherein, optionally, two or more R groups (R1, R2, R3, R4, R5 and R6) form a ring structure, with the proviso that at least one of R2 and R5, and at least one of R3 and R6 is a hydrocarbyl group of at least two carbon atoms, to form the composition.
    Type: Application
    Filed: June 21, 2016
    Publication date: June 21, 2018
    Inventors: Sean Ewart, Teresa Karjala, Mehmet Demirors, Richard Keaton, Sarat Munjal, Christopher Eddy
  • Publication number: 20180163039
    Abstract: An insulated wire or cable is made by a process comprising the steps of: (A) extruding onto a covered or uncovered metal conductor or optical fiber a composition having a DF measured at 130° C. (60 Hz, 2 kV) or 120° C. (60 Hz, 8 kV) or 100° C. (60 Hz, 8 kV) of <0.5% and comprising: (1) a high melt strength ethylene-based polymer made in a tubular reactor, and (2) a peroxide, and (B) crosslinking the high melt strength ethylene-based polymer.
    Type: Application
    Filed: May 25, 2016
    Publication date: June 14, 2018
    Inventors: Bharat I. Chaudhary, Christopher R. Eddy, Sarat Munjal, Kalyan Sehanobish, Hayley Brown, John Osby, Jose Ortega
  • Publication number: 20180134824
    Abstract: A process to form an ethylene-based polymer comprising, in polymerized form, ethylene and at least one acid comonomer, said process comprising polymerizing a reaction mixture comprising the ethylene and the acid comonomer, in a reactor configuration comprising at least one Secondary compressor, at least one pressurization device, and at least one reactor selected from the following: at least one autoclave reactor, at least one tubular reactor, or a combination thereof; and wherein the reaction mixture is polymerized in the presence of at least one free-radical initiator, and at a pressure of at least 1000 Bar; and wherein at least a portion of a comonomer composition comprising at least a portion of the acid comonomer used in the polymerization, is compressed, to form a compressed comonomer composition, in the pressurization device, up to a discharge pressure ranging from 1000 Bar to 4000 Bar, and at a discharge temperature (DT) from 10 C to 100 C; and wherein the compressed comonomer composition bypasses the
    Type: Application
    Filed: June 30, 2016
    Publication date: May 17, 2018
    Inventors: Christopher R. Eddy, Jeffery S. Bradley, Otto J. Berbee, Sarat Munjal, Bryan Gutermuth
  • Patent number: 9944733
    Abstract: A composition comprising an ethylene-based polymer, the ethylene-based polymer having the following properties: a) at least one incorporated structure derived from a polyene selected from the group consisting of i) through x), as described herein; and b) a Mw(abs) versus I2 relationship: Mw(abs)<A+B(I2), wherein A=2.40×105 g/mole and B=?8.00×103 (g/mole)/(dg/min). A composition comprising an ethylene-based polymer, the ethylene-based polymer comprising at least one incorporated structure derived from a polyene selected from the group consisting of i) through x), as described herein, wherein the polymer is formed in a reactor configuration comprising at least one tubular reactor.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: April 17, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Otto J. Berbee, Christopher R. Eddy, Stefan Hinrichs, Sarat Munjal, John O. Osby
  • Publication number: 20170335034
    Abstract: A process to form an ethylene-based polymer including polymerizing ethylene and at least one asymmetrical polyene comprising an “alpha, beta unsaturated-carbonyl end” (“?,? unsaturated-carbonyl end”) and a “C—C double bond end,” wherein the polymerization takes place in the presence of at least one free-radical initiator; and wherein the polymerization takes place in a reactor configuration comprising at least two reaction zones, reaction zone 1 and reaction zone i (i?2), wherein reaction zone i is downstream from reaction zone 1.
    Type: Application
    Filed: July 11, 2017
    Publication date: November 23, 2017
    Inventors: Otto J. Berbee, Stefan Hinrichs, Christopher R. Eddy, Sarat Munjal, John O. Osby, Sean W. Ewart
  • Patent number: 9751964
    Abstract: The invention provides a process to form an ethylene-based polymer, said process comprising polymerizing ethylene and at least one asymmetrical polyene, comprising an “alpha, beta unsaturated—carbonyl end” and a “C—C double bond end,” and wherein the polymerization takes place in the presence of at least one free-radical initiator, and wherein the polymerization takes place in a reactor configuration comprising at least two reaction zones, reaction zone I and reaction zone i (i>2), wherein reaction zone I is downstream from reaction zone I; and wherein at least one chain transfer agent (CTA) is added to the polymerization, and wherein the CTA is a saturated hydrocarbon or an unsaturated hydrocarbon.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: September 5, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Christopher R. Eddy, John O. Osby, Sean W. Ewart, Sarat Munjal, Stefan Hinrichs, Otto J. Berbee
  • Patent number: 9718906
    Abstract: A process to form an ethylene-based polymer including polymerizing ethylene and at least one asymmetrical polyene comprising an “alpha, beta unsaturated-carbonyl end” (“?,?-unsaturated-carbonyl end”) and a “C—C double bond end,” wherein the polymerization takes place in the presence of at least one free-radical initiator; and wherein the polymerization takes place in a reactor configuration comprising at least two reaction zones, reaction zone 1 and reaction zone i (i>2), wherein reaction zone i is downstream from reaction zone 1.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: August 1, 2017
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Otto J. Berbee, Stefan Hinrichs, Christopher R. Eddy, Sarat Munjal, John O. Osby, Sean W. Ewart
  • Publication number: 20160304643
    Abstract: The invention provides a process to form an ethylene-based polymer, said process comprising polymerizing ethylene and at least one asymmetrical polyene, comprising an “alpha, beta unsaturated—carbonyl end” and a “C—C double bond end,” and wherein the polymerization takes place in the presence of at least one free-radical initiator, and wherein the polymerization takes place in a reactor configuration comprising at least two reaction zones, reaction zone 1 and reaction zone i (i?2), wherein reaction zone i is downstream from reaction zone 1; and wherein at least one chain transfer agent (CTA) is added to the polymerization, and wherein the CTA is a saturated hydrocarbon or an unsaturated hydrocarbon.
    Type: Application
    Filed: December 23, 2014
    Publication date: October 20, 2016
    Inventors: Christopher R. Eddy, John O. Osby, Sean W. Ewart, Sarat Munjal, Stefan Hinrichs, Otto J. Berbee
  • Publication number: 20160297904
    Abstract: A process to form an ethylene-based polymer including polymerizing ethylene and at least one asymmetrical polyene comprising an “alpha, beta unsaturated-carbonyl end” (“?,? unsaturated-carbonyl end”) and a “C—C double bond end,” wherein the polymerization takes place in the presence of at least one free-radical initiator; and wherein the polymerization takes place in a reactor configuration comprising at least two reaction zones, reaction zone 1 and reaction zone i (i?2), wherein reaction zone i is downstream from reaction zone 1.
    Type: Application
    Filed: December 23, 2014
    Publication date: October 13, 2016
    Inventors: Otto J. Berbee, Stefan Hinrichs, Christopher R. Eddy, Sarat Munjal, John O. Osby, Sean W. Ewart
  • Publication number: 20160297905
    Abstract: A composition comprising an ethylene-based polymer, the ethylene-based polymer having the following properties: a) at least one incorporated structure derived from a polyene selected from the group consisting of i) through x), as described herein; N and b) a Mw(abs) versus I2 relationship: Mw(abs)<A+B(I2), wherein A=2.40×105 g/mole and B=?8.00×103 (g/mole) (dg/min). A composition comprising an ethylene-based polymer, the ethylene-based polymer comprising at least one incorporated structure derived from a polyene selected from the group consisting of i) through x), as described herein, wherein the polymer is formed in a reactor configuration comprising at least one tubular reactor.
    Type: Application
    Filed: December 23, 2014
    Publication date: October 13, 2016
    Inventors: Otto J. Berbee, Christopher R. Eddy, Stefan Hinrichs, Sarat Munjal, John O. Osby
  • Patent number: 9428595
    Abstract: The invention provides a process to form an ethylene-based polymer, said process comprising polymerizing ethylene in the presence of at least one free-radical agent, and in the presence of a “metal alkyl-containing compound” selected from the group consisting of the following: i) at least one “Group II metal alkyl-containing compound,” ii) at least one “Group III metal alkyl-containing compound,” or iii) a combination of i) and ii). The invention also provides a composition comprising at least one ethylene-based polymer, prepared from a free-radical polymerization, and wherein the ethylene-based polymer has the following property: y>0.28567x?0.00032, wherein y=vinyl/1000C, as determined by 1H NMR, and x=mol % polymerized ?-olefin, as determined by 13C NMR.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: August 30, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Sean W. Ewart, Teresa P. Karjala, Sarat Munjal, Mehmet Demirors
  • Patent number: 9328180
    Abstract: The invention provides a process to form an ethylene-based polymer, said process comprising polymerizing ethylene in presence of at least the following: A) a free-radical agent; B) an alkylated phenol selected from Formula (I), wherein R1, R2,R3, R4 and R5 are each, independently, hydrogen or an alkyl; and C) a “metal alkyl-containing compound” selected from the group consisting of the following: i) at least one “Group II metal alkyl-containing compound,” ii) at least one “Group III metal alkyl-containing compound,” and iii) a combination of i) and ii).
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: May 3, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Sean W. Ewart, Teresa P. Karjala, Michael J. Zogg, Jr., Sarat Munjal