Patents by Inventor Owen Lightbody
Owen Lightbody 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: 20240110024Abstract: A biaxially oriented polyethylene film structure comprises at least three layers, including a core layer, wherein the core layer comprises: i) from 50 to 99.5 weight percent of a first polyethylene which is an ethylene copolymer having a density of greater than 0.940 g/cm3; and ii) from 0.5 to 50 weight percent of a second polyethylene which is a polyethylene homopolymer composition having a density of at least 0.950 g/cm3; wherein the polyethylene homopolymer composition further comprises a nucleating agent or a mixture of nucleating agents. The biaxially oriented film has very good optical properties.Type: ApplicationFiled: April 14, 2022Publication date: April 4, 2024Applicant: NOVA Chemicals (International) S.A.Inventors: Norman AUBEE, Bronwyn GILLON, Christian CARELLO, Jared TAYLOR, Maryam FEREYDOON, Shivendra GOYAL, Owen LIGHTBODY
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Publication number: 20230235106Abstract: An ethylene copolymer comprising ethylene and at least one alpha olefin having from 4 to 8 carbon atoms has a density f from 0.940 to 0.960 g/cm3, a molecular weight distribution, Mw/Mn of from 9 to 12, and a Z-average molecular weight, Mz of greater than 500,000. The ethylene copolymer is made in a multi-zone reactor system under solution phase polymerization conditions and is useful in the preparation of biaxially oriented polyethylene (BOPE) films.Type: ApplicationFiled: June 23, 2021Publication date: July 27, 2023Applicant: NOVA Chemicals (International) S.A.Inventors: Maryam Fereydoon, Shivendra Goyal, Stephen Brown, Owen Lightbody, Norman Aubee, Bronwyn Gillon, Thomas Green, Lison Mark, Christian Carello
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Publication number: 20220402192Abstract: A Biaxially Oriented Polyethylene (BOPE) process uses a selected polyethylene having a medium density and a very broad molecular weight distribution. The use of this selected polyethylene facilitates stretching in the BOPE process in comparison to previously used polyethylene resins having a higher density and/or a narrower molecular weight distribution.Type: ApplicationFiled: October 19, 2020Publication date: December 22, 2022Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.Inventors: Norman AUBEE, Owen LIGHTBODY, Maryam FEREYDOON, Bronwyn GILLON, Patrick LAM, Shivendra GOYAL
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Patent number: 11401392Abstract: Barrier films are prepared from a composition comprising 1) a blend of two high density polyethylene HDPE blend components, 2) zinc glycerolate and 3) a dispersion aid/synergist. The two high density polyethylene blend components have substantially different melt indices. It is difficult to properly mix the zinc glycerolate into this HDPE blend. The use of the dispersion aid/synergist improves the water vapor transmission rate (WVTR) of polyethylene film (in comparison to barrier films made with zinc glycerolate, in the absence of the dispersion aid/synergist). The resulting barrier films are suitable for the preparation of packaging for dry foods such as crackers and breakfast cereals.Type: GrantFiled: November 13, 2019Date of Patent: August 2, 2022Assignee: NOVA CHEMICALS (INTERNATIONAL) S.A.Inventors: Derek Wasylenko, Owen Lightbody, Tony Tikuisis, P. Scott Chisholm
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Publication number: 20200157296Abstract: Barrier films are prepared from a composition comprising 1) a blend of two high density polyethylene HDPE blend components, 2) zinc glycerolate and 3) a dispersion aid/synergist. The two high density polyethylene blend components have substantially different melt indices. It is difficult to properly mix the zinc glycerolate into this HDPE blend. The use of the dispersion aid/synergist improves the water vapor transmission rate (WVTR) of polyethylene film (in comparison to barrier films made with zinc glycerolate, in the absence of the dispersion aid/synergist). The resulting barrier films are suitable for the preparation of packaging for dry foods such as crackers and breakfast cereals.Type: ApplicationFiled: November 13, 2019Publication date: May 21, 2020Applicant: NOVA Chemicals (International) S.A.Inventors: Derek Wasylenko, Owen Lightbody, Tony Tikuisis, P. Scott Chisholm
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Patent number: 10563045Abstract: The present disclosure relates to systems including a ternary stabilization package that contains a first phosphite, a second phosphite and a primary antioxidant is used in combination with a polyethylene that is polymerized with a mixed catalyst system that contains two different types of catalysts. In some embodiments the stabilized polyethylene exhibits improved color performance.Type: GrantFiled: December 21, 2017Date of Patent: February 18, 2020Assignee: NOVA Chemicals (International) S.A.Inventors: Derek Wasylenko, Tony Tikuisis, Owen Lightbody, Fraser Waldie
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Patent number: 10442900Abstract: In some embodiments, this disclosure provides a process for the stabilization of thermoplastic polyolefins during melt processing operations. In some embodiments, the stabilizer package disclosed herein is “phenol free” and contains at least one solid aryl monophosphite and a specific liquid phosphite. The processes disclosed herein are suitable for the manufacture of polyethylene film.Type: GrantFiled: December 18, 2017Date of Patent: October 15, 2019Assignee: NOVA Chemicals (International) S.A.Inventors: Fraser Waldie, Owen Lightbody, Tony Tikuisis, P. Scott Chisholm
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Publication number: 20190194425Abstract: The present disclosure relates to systems including a ternary stabilization package that contains a first phosphite, a second phosphite and a primary antioxidant is used in combination with a polyethylene that is polymerized with a mixed catalyst system that contains two different types of catalysts. In some embodiments the stabilized polyethylene exhibits improved color performance.Type: ApplicationFiled: December 21, 2017Publication date: June 27, 2019Applicant: NOVA Chemicals (International) S.A.Inventors: Derek Wasylenko, Tony Tikuisis, Owen Lightbody, Fraser Waldie
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Publication number: 20180186942Abstract: In some embodiments, this disclosure provides a process for the stabilization of thermoplastic polyolefins during melt processing operations. In some embodiments, the stabilizer package disclosed herein is “phenol free” and contains at least one solid aryl monophosphite and a specific liquid phosphite. The processes disclosed herein are suitable for the manufacture of polyethylene film.Type: ApplicationFiled: December 18, 2017Publication date: July 5, 2018Applicant: NOVA Chemicals (International) S.A.Inventors: Fraser Waldie, Owen Lightbody, Tony Tikuisis, P. Scott Chisholm
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Publication number: 20170247526Abstract: This invention provides a blow molding composition comprising a high molecular weight, chromium catalyzed ethylene copolymer (also referred to as a polyethylene resin) and a nucleating agent. The composition enables a more efficient blow molding process by reducing the number of malformed/rejected parts that are produced when the process is operated at high rates. In a preferred embodiment, the malformed parts may be reground and added to “virgin” composition for the production of prime parts.Type: ApplicationFiled: October 28, 2015Publication date: August 31, 2017Applicant: NOVA Chemicals (International) S.A.Inventors: Matthew Botros, Owen Lightbody, Fraser Waldie, Gilbert Arnould, Tony Tikuisis, Anna Rajkovic
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Patent number: 9109099Abstract: A new additive for plastics (for example, polyethylene) is prepared by reacting a fatty acid ester of glycerol (such as glycerol monostearate) with a source of a reactive divalent metal selected from zinc, calcium, and magnesium. In an embodiment, Zinc oxide is the reactive divalent metal and the reaction is conducted in the presence of an acid such as zinc acetate. In one embodiment, a molar excess of zinc oxide (compared to the fatty acid ester) is used. The additive is suitable for use in the preparation of injection molded parts, rotomolded parts, and films.Type: GrantFiled: December 19, 2014Date of Patent: August 18, 2015Assignee: NOVA Chemicals (International) S.A.Inventors: Owen Lightbody, Norman Dorien Joseph Aubee, P Scott Chisholm, Tony Tikuisis
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Publication number: 20150105509Abstract: A new additive for plastics (for example, polyethylene) is prepared by reacting a fatty acid ester of glycerol (such as glycerol monostearate) with a source of a reactive divalent metal selected from zinc, calcium, and magnesium. In an embodiment, Zinc oxide is the reactive divalent metal and the reaction is conducted in the presence of an acid such as zinc acetate. In one embodiment, a molar excess of zinc oxide (compared to the fatty acid ester) is used. The additive is suitable for use in the preparation of injection molded parts, rotomolded parts, and films.Type: ApplicationFiled: December 19, 2014Publication date: April 16, 2015Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.Inventors: Owen Lightbody, Norman Dorien Joseph Aubee, P Scott Chisholm, Tony Tikuisis
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Publication number: 20140275302Abstract: A new additive for plastics (for example, polyethylene) is prepared by reacting a fatty acid ester of glycerol (such as glycerol monostearate) with a source of a reactive divalent metal selected from zinc, calcium, and magnesium. In an embodiment, Zinc oxide is the reactive divalent metal and the reaction is conducted in the presence of an acid such as zinc acetate. In one embodiment, a molar excess of zinc oxide (compared to the fatty acid ester) is used. The additive is suitable for use in the preparation of injection molded parts, rotomolded parts, and films.Type: ApplicationFiled: February 27, 2014Publication date: September 18, 2014Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.Inventors: Owen Lightbody, Norman Dorien Joseph Aubee, P. Scott Chisholm, Tony Tikuisis