Patents by Inventor Nitin Borse
Nitin Borse 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: 11845855Abstract: A bimodal linear polyethylene composition, products made therefrom, methods of making and using same, and articles containing same.Type: GrantFiled: December 10, 2020Date of Patent: December 19, 2023Assignee: UNIVATION TECHNOLOGIES LLCInventors: Swapnil Chandak, Nitin Borse, Ayush A. Bafna, Yi Zhang, Timothy R. Lynn, Roger L. Kuhlman, John F. Szul
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Patent number: 11827725Abstract: A bimodal polyethylene composition, products made therefrom, methods of making and using same, and articles, including bottle caps and closures, containing same.Type: GrantFiled: March 22, 2019Date of Patent: November 28, 2023Assignee: Univation Technologies LLCInventors: Nitin Borse, Swapnil B. Chandak, Yi Zhang, Timothy R. Lynn, Roger L Kuhlman, John F. Szul
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Patent number: 11649301Abstract: An activator-nucleator formulation comprising an activating effective amount of (A) an alkylaluminum(chloride) compound (compound (A)); and a nucleating effective amount of a compound (B) selected from at least one of compounds (B1) to (B3): (B1) calcium (1R,2S)-cis-cyclohexane-1,2-dicarboxylate (1:1); (B2) calcium stearate (1:2), and (B3) zinc stearate (1:2); wherein the compound (A) is effective for activating a Ziegler-Natta procatalyst to give a Ziegler-Natta catalyst; and wherein the compound (B) is effective for lowering isothermal crystallization peak time period of a semicrystalline polyethylene polymer made in a polymerization process by the Ziegler-Natta catalyst. A method of polymerizing ethylene, and optionally 0, 1, or more alpha-olefin comonomers, in a polymerization process conducted in a polymerization reactor, the method comprising contacting ethylene, and optionally 0, 1, or more alpha-olefin comonomers, with the Ziegler-Natta catalyst system to give a semicrystalline polyethylene polymer.Type: GrantFiled: June 7, 2019Date of Patent: May 16, 2023Assignee: Dow Global Technologies LLCInventors: Nitin Borse, Zhenshuo Bobby Liu, Ian M. Munro, Swapnil B. Chandak
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Publication number: 20220325083Abstract: A nucleating agent-free and LLDPE-free polyolefin composition for making films with enhanced barrier properties against water vapor and oxygen gas. Related aspects include formulations, manufactured articles, films, and methods.Type: ApplicationFiled: September 22, 2020Publication date: October 13, 2022Inventors: Nitin Borse, Swapnil B. Chandak, Ayush A. Bafna, Roger L. Kuhlman, Joel D. Wieliczko, John F. Szul, Chuan C. He, Charles D. Lester
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Patent number: 11421100Abstract: A polyethylene blend comprising a uniform dispersion of constituents (A) and (B): (A) a Ziegler-Natta catalyst-made linear low density polyethylene and (B) a metallocene catalyst-made linear low density polyethylene, a composition comprising the polyethylene blend and at least one additive, methods of making and using same, and manufactured articles and films comprising or made from same.Type: GrantFiled: May 29, 2018Date of Patent: August 23, 2022Assignee: UNIVATION TECHNOLOGIES, LLC.Inventors: Swapnil B. Chandak, Nitin Borse
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Patent number: 11407160Abstract: A multilayer film having Machine Direction Orientation (MDO) is prepared by first co-extruding a multilayer film, then stretching the multilayer film in the machine direction at a temperature lower than the melting point of the polyethylene resin that is used to prepare the film. At least one layer of the film is a first polyethylene composition having a density of from about 0.94 to about 0.97 g/cc and at least one second layer is prepared from a polyethylene composition having a lower density than the first polyethylene composition. This disclosure enables the manufacture of films having outstanding barrier properties (low Water Vapor Transmission Rate, WVTR, and low Oxygen Transmission Rate, OTR) and good physical properties.Type: GrantFiled: June 26, 2020Date of Patent: August 9, 2022Assignee: NOVA CHEMICALS (INTERNATIONAL) S.A.Inventors: Nitin Borse, Norman Aubee
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Publication number: 20220213302Abstract: A polyethylene blend that has an improved stretch break property and is useful for stretch wrap film applications. The polyethylene blend consists essentially of approximately 98 weight percent (wt %) of a linear low-density polyethylene (LLDPE) component and approximately 2 wt % of a higher molecular weight high-density polyethylene polymer (HMW HDPE) component, based on the combined weight of the LLDPE and HMW HDPE components. Also, a method of making the polyethylene blend, a formulation comprising the polyethylene blend and at least one additive that is different than the polyethylene blend, a method of making a manufactured article from the polyethylene blend or formulation; the manufactured article made thereby, and use of the polyethylene blend for stretch wrapping object(s) in need thereof.Type: ApplicationFiled: May 28, 2020Publication date: July 7, 2022Inventors: Nitin Borse, Swapnil B. Chandak
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Patent number: 11325927Abstract: An activated, titanium-based, spray-dried Ziegler-Natta catalyst system containing a titanium-based Ziegler-Natta catalyst, a carrier material, and an activator mixture comprising an effective amount of an activator mixture comprising triethylaluminum and diethylaluminum chloride for producing a substantially uniform comonomer composition distribution. Also, polyolefins; methods of making and using same; and articles containing same.Type: GrantFiled: December 3, 2018Date of Patent: May 10, 2022Assignee: UNIVATION TECHNOLOGIES, LLCInventors: Wesley R. Mariott, C. Dale Lester, Nitin Borse
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Patent number: 11325928Abstract: A modified spray-dried Ziegler-Natta (pro)catalyst system comprising a Ziegler-Natta (pro)catalyst, a carrier material, and a tetrahydrofuran/ethanol modifier; polyolefins; methods of making and using same; and articles containing same.Type: GrantFiled: December 3, 2018Date of Patent: May 10, 2022Inventors: Wesley R. Mariott, C. Dale Lester, Phuong A. Cao, Michael D. Awe, Nitin Borse
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Patent number: 11299609Abstract: A polyethylene blend comprising a uniform dispersion of constituents (A) and (B): (A) a Ziegler-Natta catalyst-made linear low density polyethylene and (B) a metallocene catalyst-made linear low density polyethylene, a composition comprising the polyethylene blend and at least one additive, methods of making and using same, and manufactured articles and films comprising or made from same.Type: GrantFiled: May 29, 2018Date of Patent: April 12, 2022Assignee: Univation Technologies, LLCInventors: Swapnil B. Chandak, Nitin Borse
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Patent number: 11248066Abstract: Methods of making spray-dried Ziegler-Natta (pro)catalyst systems containing titanium Ziegler-Natta (pro)catalysts, a hydrophobic silica carrier material, and tetrahydrofuran. The spray-dried Ziegler-Natta (pro)catalyst systems made by the method. Methods of polymerizing olefin (co)monomer(s) with the spray-dried Ziegler-Natta catalyst system to make polyolefin polymers, and the polyolefin polymers made thereby.Type: GrantFiled: June 7, 2019Date of Patent: February 15, 2022Assignee: Univation Technologies, LLCInventors: Ian M. Munro, Wesley R. Mariott, C. Dale Lester, Nitin Borse, Michael D. Awe, Phuong A. Cao, Jesse C. Beilhart
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Patent number: 11203653Abstract: A bimodal polyethylene composition made with a bimodal catalyst system, wherein the bimodal polyethylene composition has from greater than 0 to 14 weight percent of polyethylene polymers having a weight-average molecular weight of from greater than 0 to 10,000 grams per mol, products made therefrom, methods of making and using same, and articles containing same.Type: GrantFiled: August 23, 2018Date of Patent: December 21, 2021Assignee: Univation Technologies, LLCInventors: Nitin Borse, Ayush A. Bafna, Cliff R. Mure, Chuan C. He, Timothy R. Lynn, Roger L. Kuhlman, John F. Szul
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Patent number: 11149136Abstract: Provided are various bimodal polyethylene, including but not limited to a bimodal polyethylene for a pipe having a density of from 0.9340 to 0.9470 gram/cubic centimeters (g/ccm), a melt index (12) of from 0.1 to 0.7 gram/10 minute, a melt flow ratio (121/12) of from 20 to 90. The bimodal polyethylene includes a high molecular weight polyethylene component and a low molecular weight polyethylene component which are a reaction product of a polymerization process performed in a single reactor and that employs a bimodal polymerization catalyst system. The bimodal polymerization catalyst system includes a bimodal catalyst system of bis(2-pentamethylphenylamido)ethyl)amine Zirconium dibenzyl and either (tetramethylcyclopentadienyl)(n-propylcyclopentadienyl)Zirconium dichloride or (tetramethylcyclopentadienyl)(n-propylcyclopentadienyl)zirconium dimethyl in a 3.0:1 molar ratio; and a trim catalyst of (tetramethylcyclopentadienyl)(n-propylcyclopentadienyl)Zirconium dichloridedimethyl in heptane added to adjust melt.Type: GrantFiled: October 25, 2017Date of Patent: October 19, 2021Assignee: Univation Technologies, LLCInventors: Nitin Borse, Swapnil Chandak, Ayush A. Bafna, Cliff R. Mure, Yi Zhang, Timothy R. Lynn, Roger L. Kuhlman, John F. Szul
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Patent number: 11142597Abstract: A bimodal linear polyethylene composition, products made therefrom, methods of making and using same, and articles containing same.Type: GrantFiled: October 25, 2017Date of Patent: October 12, 2021Assignee: Univation Technologies, LLCInventors: Swapnil B. Chandak, Nitin Borse, Ayush A. Bafna, Yi Zhang, Timothy R. Lynn, Roger L. Kuhlman, John F. Szul
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Publication number: 20210230317Abstract: Methods of making spray-dried Ziegler-Natta (pro)catalyst systems containing titanium Ziegler-Natta (pro)catalysts, a hydrophobic silica carrier material, and tetrahydrofuran. The spray-dried Ziegler-Natta (pro)catalyst systems made by the method. Methods of polymerizing olefin (co)monomer(s) with the spray-dried Ziegler-Natta catalyst system to make polyolefin polymers, and the polyolefin polymers made thereby.Type: ApplicationFiled: June 7, 2019Publication date: July 29, 2021Inventors: Ian M. Munro, Wesley R. Mariott, C. Dale Lester, Nitin Borse, Michael D. Awe, Phuong A. Cao, Jesse C. Beilhart
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Publication number: 20210163633Abstract: An activator-nucleator formulation comprising an activating effective amount of (A) an alkylaluminum(chloride) compound (compound (A)); and a nucleating effective amount of a compound (B) selected from at least one of compounds (B1) to (B3): (B1) calcium (1R,2S)-cis-cyclohexane-1,2-dicarboxylate (1:1); (B2) calcium stearate (1:2), and (B3) zinc stearate (1:2); wherein the compound (A) is effective for activating a Ziegler-Naha procatalyst to give a Ziegler-Natta catalyst; and wherein the compound (B) is effective for lowering isothermal crystallization peak time period of a semicrystalline polyethylene polymer made in a polymerization process by the Ziegler-Natta catalyst. A method of polymerizing ethylene, and optionally 0, 1, or more alpha-olefin comonomers, in a polymerization process conducted in a polymerization reactor, the method comprising contacting ethylene, and optionally 0, 1, or more alpha-olefin comonomers, with the Ziegler-Naha catalyst system to give a semicrystalline polyethylene polymer.Type: ApplicationFiled: June 7, 2019Publication date: June 3, 2021Inventors: Nitin Borse, Zhenshuo Bobby Liu, Ian M. Munro, Swapnil B. Chandak
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Publication number: 20210147658Abstract: A carbon black-containing bimodal polyethylene composition, products made therefrom, methods of making and using same, and articles containing same.Type: ApplicationFiled: September 6, 2018Publication date: May 20, 2021Applicant: Dow Global Technologies LLCInventors: Nitin Borse, Swapnil B. Chandak, Yi Zhang, Timothy R. Lynn, Roger L. Kuhlman, John F. Szul
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Publication number: 20210147591Abstract: A bimodal polyethylene composition made with a bimodal catalyst system, wherein the bimodal polyethylene composition has from greater than 0 to 14 weight percent of polyethylene polymers having a weight-average molecular weight of from greater than 0 to 10,000 grams per mol, products made therefrom, methods of making and using same, and articles containing same.Type: ApplicationFiled: August 23, 2018Publication date: May 20, 2021Applicant: Dow Global Technologies LLCInventors: Nitin Borse, Ayush A. Bafna, Cliff R. Mure, Chuan C. He, Timothy R. Lynn, Roger L. Kuhlman, John F. Szul
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Publication number: 20210095109Abstract: A bimodal linear polyethylene composition, products made therefrom, methods of making and using same, and articles containing same.Type: ApplicationFiled: December 10, 2020Publication date: April 1, 2021Inventors: Swapnil Chandak, Nitin Borse, Ayush A. Bafna, Yi Zhang, Timothy R. Lynn, Roger L. Kuhlman, John F. Szul
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Patent number: 10941284Abstract: A bimodal linear polyethylene composition, products made therefrom, methods of making and using same, and articles containing same.Type: GrantFiled: October 25, 2017Date of Patent: March 9, 2021Assignee: Univation Technologies, LLCInventors: Swapnil Chandak, Nitin Borse, Ayush A. Bafna, Yi Zhang, Timothy R. Lynn, Roger L. Kuhlman, John F. Szul