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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Publication number: 20210040249Abstract: A bimodal polyethylene composition, products made therefrom, methods of making and using same, and articles, including bottle caps and closures, containing same.Type: ApplicationFiled: March 22, 2019Publication date: February 11, 2021Inventors: Nitin Borse, Swapnil B. Chandak, Yi Zhang, Timothy R. Lynn, Roger L. Kuhlman, John F. Szul
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Publication number: 20200369693Abstract: 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: ApplicationFiled: December 3, 2018Publication date: November 26, 2020Inventors: Wesley R. Mariott, C. Dale Lester, Phuong A. Cao, Michael D Awe, Nitin Borse
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Publication number: 20200369692Abstract: 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: ApplicationFiled: December 3, 2018Publication date: November 26, 2020Inventors: Wesley Mariott, C. Dale Lester, Nitin Borse
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Publication number: 20200324453Abstract: 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: ApplicationFiled: June 26, 2020Publication date: October 15, 2020Applicant: NOVA Chemicals (International) S.A.Inventors: Nitin Borse, Norman Aubee
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Patent number: 10730221Abstract: 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: December 10, 2015Date of Patent: August 4, 2020Assignee: NOVA Chemicals (International) S.A.Inventors: Nitin Borse, Norman Aubee
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Publication number: 20200231791Abstract: 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: ApplicationFiled: April 6, 2020Publication date: July 23, 2020Inventors: Swapnil B. Chandak, Nitin Borse
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Publication number: 20200140666Abstract: 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: ApplicationFiled: May 29, 2018Publication date: May 7, 2020Inventors: Swapnil Chandak, Nitin Borse
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Publication number: 20200095407Abstract: 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: ApplicationFiled: May 29, 2018Publication date: March 26, 2020Inventors: Swapnil B. Chandak, Nitin Borse
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Publication number: 20200071509Abstract: 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.Type: ApplicationFiled: October 25, 2017Publication date: March 5, 2020Applicant: 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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Publication number: 20190256696Abstract: A bimodal linear polyethylene composition, products made therefrom, methods of making and using same, and articles containing same.Type: ApplicationFiled: October 25, 2017Publication date: August 22, 2019Inventors: 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: 20190256629Abstract: A bimodal linear polyethylene composition, products made therefrom, methods of making and using same, and articles containing same.Type: ApplicationFiled: October 25, 2017Publication date: August 22, 2019Inventors: Swapnil B. Chandak, Nitin Borse, Ayush A. Bafna, Yi Zhang, Timothy R. Lynn, Roger L. Kuhlman, John F. Szul
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Patent number: 9994004Abstract: A multilayer film is prepared from a high impact strength polyethylene (HI polyethylene); a Ziegler Natta catalyzed polyethylene (Z/N polyethylene) and a high pressure low density polyethylene (LD polyethylene) with i) at least one skin layer consists essentially of HI polyethylene and ii) at least one core layer comprises a blend of Z/N polyethylene and said LD polyethylene. The HI polyethylene has a density of from 0.915 to about 0.930 g/cc and a normalized impact strength of at least about 300 g/mil. The amount of HI polyethylene is from about 30 to about 55 weight % (based on the combined weights of the HI+Z/N+LD polyethylenes). The films described herein are readily prepared on blown film equipment and provide an excellent balance of mechanical properties.Type: GrantFiled: February 24, 2014Date of Patent: June 12, 2018Assignee: NOVA CHEMICALS (INTERNATIONAL) S.A.Inventors: Nitin Borse, Norman Dorien Joseph Aubee, P. Scott Chisholm, Shivendra Kumar Goyal, Jamie Michael Marler
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Patent number: 9951212Abstract: Polyethylene is often stabilized with the combination of a primary antioxidant (such as a hindered phenol, a hydroxylamine or a lactone) and a secondary antioxidant (such as a phosphonite, a monophosphite, or a diphosphite). The diphosphite additives are not completely compatible with “linear” polyethylene. This results in “blooming” of the diphosphite to the surface of the finished polyethylene part or polyethylene film. The use of a preblend of ethylene vinyl alcohol (EVOH) and diphosphite mitigates this problem.Type: GrantFiled: April 14, 2016Date of Patent: April 24, 2018Assignee: NOVA Chemicals (International) S.A.Inventors: Tony Tikuisis, Kam Wah Ho, Nitin Borse
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Publication number: 20170335077Abstract: Linear low density polyethylene (LLDPE) that is prepared with a single site catalyst has relatively low modulus in comparison to a polyethylene of similar melt index and density made with a conventional Zeigler Natta catalyst. Films that are prepared from polyethylene having a low modulus have a soft and flexible “feel”, which is undesirable for some packaging applications. The present invention provides a method to increase the modulus of single site catalyzed polyethylene.Type: ApplicationFiled: December 11, 2015Publication date: November 23, 2017Applicant: NOVA Chemicals (International) S.A.Inventors: Nitin BORSE, Norman AUBEE, P. Scott CHISHOLM
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Publication number: 20170274574Abstract: 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: ApplicationFiled: December 10, 2015Publication date: September 28, 2017Applicant: NOVA Chemicals (International) S.A.Inventors: Nitin Borse, Norman Aubee
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Publication number: 20160229995Abstract: Polyethylene is often stabilized with the combination of a primary antioxidant (such as a hindered phenol, a hydroxylamine or a lactone) and a secondary antioxidant (such as a phosphonite, a monophosphite, or a diphosphite). The diphosphite additives are not completely compatible with “linear” polyethylene. This results in “blooming” of the diphosphite to the surface of the finished polyethylene part or polyethylene film. The use of a preblend of ethylene vinyl alcohol (EVOH) and diphosphite mitigates this problem.Type: ApplicationFiled: April 14, 2016Publication date: August 11, 2016Applicant: NOVA Chemicals (International) S.A.Inventors: Tony Tikuisis, Kam Wah Ho, Nitin Borse
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Patent number: 9340665Abstract: Polyethylene is often stabilized with the combination of a primary antioxidant (such as a hindered phenol, a hydroxylamine or a lactone) and a secondary antioxidant (such as a phosphonite, a monophosphite, or a diphosphite). The diphosphite additives are not completely compatible with “linear” polyethylene. This results in “blooming” of the diphosphite to the surface of the finished polyethylene part or polyethylene film. The use of a preblend of ethylene vinyl alcohol (EVOH) and diphosphite mitigates this problem.Type: GrantFiled: April 2, 2013Date of Patent: May 17, 2016Assignee: NOVA Chemicals (International) S.A.Inventors: Tony Tikuisis, Kam Wah Ho, Nitin Borse
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Publication number: 20150299448Abstract: Polyethylene is often stabilized with the combination of a primary antioxidant (such as a hindered phenol, a hydroxylamine or a lactone) and a secondary antioxidant (such as a phosphonite, a monophosphite, or a diphosphite). The diphosphite additives are not completely compatible with “linear” polyethylene. This results in “blooming” of the diphosphite to the surface of the finished polyethylene part or polyethylene film. The use of a preblend of ethylene vinyl alcohol (EVOH) and diphosphite mitigates this problem.Type: ApplicationFiled: April 2, 2013Publication date: October 22, 2015Applicant: NOVA Chemicals ( International) S.A.Inventors: Tony Tikuisis, Kam Wah Ho, Nitin Borse
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Publication number: 20150132593Abstract: Multilayer “barrier” films which have excellent Water Vapor Transmission Rate (WVTR) performance are prepared using a core layer which comprises a blend of from 92 to 60 weight % of nucleated HDPE and from 8 to 40 weight % LDPE. The films are suitable for the preparation of packages for dry foods such as crackers and breakfast cereals.Type: ApplicationFiled: June 11, 2013Publication date: May 14, 2015Applicant: NOVA Chemicals (International) S.A.Inventors: Nitin Borse, Norman Dorien Joseph Aubee, Daniel Ward
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Publication number: 20140272366Abstract: A multilayer film is prepared from a high impact strength polyethylene (HI polyethylene); a Ziegler Natta catalyzed polyethylene (Z/N polyethylene) and a high pressure low density polyethylene (LD polyethylene) with i) at least one skin layer consists essentially of HI polyethylene and ii) at least one core layer comprises a blend of Z/N polyethylene and said LD polyethylene. The HI polyethylene has a density of from 0.915 to about 0.930 g/cc and a normalized impact strength of at least about 300 g/mil. The amount of HI polyethylene is from about 30 to about 55 weight % (based on the combined weights of the HI+Z/N+LD polyethylenes). The films described herein are readily prepared on blown film equipment and provide an excellent balance of mechanical properties.Type: ApplicationFiled: February 24, 2014Publication date: September 18, 2014Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.Inventors: Nitin Borse, Norman Dorien Joseph Aubee, P. Scott Chisholm, Shivendra Kumar Goyal, Jamie Michael Marler