Patents by Inventor Celine Bellehumeur
Celine Bellehumeur 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: 12195564Abstract: A polyethylene composition having a high flow index and a bimodal composition provides an outstanding combination of environmental stress crack resistance (ESCR) and ductility in rotomolded articles. The composition is easy to process/mold.Type: GrantFiled: May 25, 2020Date of Patent: January 14, 2025Assignee: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Brian Molloy
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Publication number: 20240301182Abstract: A bimodal polyethylene composition has a density of from 0.940 to 0.949 g/cm3, a melt index, I2 of greater than 5 g/10 min and an environmental stress crack resistance, ESCR of greater than 1000 hours as determined by ASTM D1693 in 100% IGEPAL CO-630 under condition B. The bimodal polyethylene composition which comprises a first ethylene copolymer and a second ethylene copolymer is relatively easy to process and may be used to make molded articles.Type: ApplicationFiled: January 21, 2022Publication date: September 12, 2024Applicant: NOVA Chemicals (International) S.A.Inventors: Céline Bellehumeur, Sepideh Kasiri
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Publication number: 20240174778Abstract: A polyethylene composition has a density of ?0.945 g/cm3, a melt index. I2 of from 0.8 to 4.0 g/10 min. an environmental stress crack resistance, an ESCR of greater than 400 hours as determined by ASTM D1693 in 100% IGEPAL CO-630 under conditions A or B. and a melt strength of ?3.0 cN.Type: ApplicationFiled: March 16, 2022Publication date: May 30, 2024Applicant: NOVA Chemicals (International) S.A.Inventors: Céline Bellehumeur, Sepideh Kasiri
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Publication number: 20230279205Abstract: Provided in this disclosure is an ethylene interpolymer composition. The ethylene interpolymer composition includes a first ethylene interpolymer, a second ethylene interpolymer, and a third ethylene interpolymer. Further, the ethylene interpolymer composition has a density of at least 0.945 g/cm3; an environmental stress crack resistance (ESCR), measured according to ASTM D1693, Condition B, 10% IGEPAL CO-360, of at least 90 hours; and an Izod impact strength of at least 80 J/m, as measured according to ASTM D256.Type: ApplicationFiled: June 4, 2021Publication date: September 7, 2023Applicant: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Brian Molloy, Gilbert Arnould, Henry Hay, Tracy Li
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Publication number: 20230159732Abstract: High density polyethylene compositions having a high flow index and a bimodal composition provides an outstanding combination of processability, stiffness and ductility in rotomolded articles. The compositions have a low relative elasticity (G?/G?, measured at 0.05 rad/sec) of less than 0.03.Type: ApplicationFiled: April 9, 2021Publication date: May 25, 2023Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.Inventors: Celine Bellehumeur, Brian Molloy, Amin Mirzadeh
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Publication number: 20230124453Abstract: A rotomolding composition comprises a blend of two polyethylenes: 1) a well stabilized polyethylene; and 2) a poorly stabilized polyethylene having a very low flow rate. The poorly stabilized polyethylene is further characterized by having a large particle size (from 500 to 3000 microns). Rotomolded parts prepared from the composition have a rough inner surface. Polyurethane foam adheres well to this rough surface.Type: ApplicationFiled: February 10, 2021Publication date: April 20, 2023Applicant: Nova Chemicals (International) S.A.Inventors: Carmine D'AGOSTINO, Gilbert ARNOULD, Celine BELLEHUMEUR, Henry HAY, Van DANG
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Publication number: 20220396690Abstract: An interpolymer product comprising: a first ethylene interpolymer comprising ethylene and an ?-olefin having a weight-average molecular weight (Mw) of greater than 250,000 and a density of less than 0.930 g/cm3, and a second ethylene interpolymer comprising ethylene and an ?-olefin wherein the second ethylene interpolymer comprises a Mw of less than 70,000 and a density of greater than 0.930 g/cm3; and wherein the interpolymer product comprises an environmental stress crack resistance (ESCR), measured according to ASTM D1693, Condition B, 10% IGEPAL CO-630, of greater than 90 hours. The interpolymer product may be manufactured in a continuous solution polymerization process utilizing at least two reactors employing at least one single site catalyst formulation and at least one heterogeneous catalyst formulation.Type: ApplicationFiled: October 27, 2020Publication date: December 15, 2022Applicant: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Brian Molloy
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Publication number: 20220289953Abstract: A dual reactor solution process gives high density polyethylene compositions containing a first ethylene copolymer and a second ethylene copolymer and which have good processability, toughness, and environmental stress crack resistance. The polyethylene compositions are suitable for the preparation of rotomolded parts.Type: ApplicationFiled: July 2, 2020Publication date: September 15, 2022Applicant: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Douglas Checknita, Henry Hay, Derek Wasylenko, Tony Tikuisis
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Publication number: 20220227902Abstract: A polyethylene composition having a high flow index and a bimodal composition provides an outstanding combination of environmental stress crack resistance (ESCR) and ductility in rotomolded articles. The composition is easy to process/mold.Type: ApplicationFiled: May 25, 2020Publication date: July 21, 2022Applicant: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Brian Molloy
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Patent number: 11286379Abstract: Rotomolded articles, especially flexible rotomolded articles are made from an ethylene interpolymer product having a melt index, I2 of from 2.5 to 8.0 g/10 min, a density of from 0.905 to 0.920 g/cm3; and a Dilution Index, Yd, greater than 0. The ethylene interpolymer product comprises: (I) a first ethylene interpolymer; (II) a second ethylene interpolymer, and; (III) optionally a third ethylene interpolymer.Type: GrantFiled: October 8, 2019Date of Patent: March 29, 2022Assignee: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Maryam Fereydoon, Amy Phinney
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Publication number: 20210102050Abstract: Rotomolded articles, especially flexible rotomolded articles are made from an ethylene interpolymer product having a melt index, I2 of from 2.5 to 8.0 g/10 min, a density of from 0.905 to 0.920 g/cm3; and a Dilution Index, Yd, greater than 0. The ethylene interpolymer product comprises: (I) a first ethylene interpolymer; (II) a second ethylene interpolymer, and; (III) optionally a third ethylene interpolymer.Type: ApplicationFiled: October 8, 2019Publication date: April 8, 2021Applicant: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Maryam Fereydoon, Amy Phinney
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Patent number: 10189924Abstract: The present disclosure provides high density polyethylene resins having good low temperature impact resistance. The resins are suitable for use in rotomolding application for large parts. The resin is a bi- or trimodal resin produced using solution phase polymerization in the presence of a single site catalyst.Type: GrantFiled: April 12, 2018Date of Patent: January 29, 2019Assignee: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Mark Hoidas
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Publication number: 20180230255Abstract: The present disclosure provides high density polyethylene resins having good low temperature impact resistance. The resins are suitable for use in rotomolding application for large parts. The resin is a bi- or trimodal resin produced using solution phase polymerization in the presence of a single site catalyst.Type: ApplicationFiled: April 12, 2018Publication date: August 16, 2018Applicant: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Mark Hoidas
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Patent number: 10023706Abstract: This disclosure relates to rotomolded articles, having a wall structure, where the wall structure contains at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product and an ethylene polymer, where the ethylene interpolymer product has a Dilution Index (Yd) greater than 0 and improved Environmental Stress Crack Resistance (ESCR). The ethylene interpolymer product has a melt index from about 0.5 to about 15 dg/minute, a density from about 0.930 to about 0.955 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 6 and a CDBI50 from about 50% to about 98%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.Type: GrantFiled: May 31, 2017Date of Patent: July 17, 2018Assignee: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Brian Molloy, Hamidreza Khakdaman, XiaoChuan Wang, Tieqi Li, Christopher Dobbin, Fazle Sibtain, Kenneth Taylor
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Patent number: 9982077Abstract: The present disclosure provides high density polyethylene resins having good low temperature impact resistance. The resins are suitable for use in rotomolding application for large parts. The resin is a bi- or trimodal resin produced using solution phase polymerization in the presence of a single site catalyst.Type: GrantFiled: December 5, 2016Date of Patent: May 29, 2018Assignee: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Mark Hoidas
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Publication number: 20170267822Abstract: This disclosure relates to rotomolded articles, having a wall structure, where the wall structure contains at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product and an ethylene polymer, where the ethylene interpolymer product has a Dilution Index (Yd) greater than 0 and improved Environmental Stress Crack Resistance (ESCR). The ethylene interpolymer product has a melt index from about 0.5 to about 15 dg/minute, a density from about 0.930 to about 0.955 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 6 and a CDBI50 from about 50% to about 98%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.Type: ApplicationFiled: May 31, 2017Publication date: September 21, 2017Applicant: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Brian Molloy, Hamidreza Khakdaman, XiaoChuan Wang, Tieqi Li, Christopher Dobbin, Fazle Sibtain, Kenneth Taylor
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Patent number: 9695309Abstract: This disclosure relates to rotomolded articles, having a wall structure, where the wall structure contains at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Yd) greater than ?1.0; total catalytic metal ?3.0 ppm; ?0.03 terminal vinyl unsaturations per 100 carbon atoms. The ethylene interpolymer products have a melt index from about 0.5 to about 15 dg/minute, a density from about 0.930 to about 0.955 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 6 and a CDBI50 from about 50% to about 98%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.Type: GrantFiled: April 6, 2016Date of Patent: July 4, 2017Assignee: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, XiaoChuan Wang, Tieqi Li, Christopher John Brooke Dobbin, Fazle Sibtain, Kenneth Edward Taylor, Hamidreza Khakdaman
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Publication number: 20170158789Abstract: The present disclosure provides high density polyethylene resins having good low temperature impact resistance. The resins are suitable for use in rotomolding application for large parts. The resin is a bi- or trimodal resin produced using solution phase polymerization in the presence of a single site catalyst.Type: ApplicationFiled: December 5, 2016Publication date: June 8, 2017Applicant: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Mark Hoidas
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Patent number: 9540505Abstract: The present disclosure provides a resin suitable for use in rotational molding having an environmental stress crack resistance of greater than 1000 hours. The resin has a density from 0.937 to 0.942 g/cm3, a melt index I2 determined according to ASTM D 1238 (2.16 kg/190° C.—I2) from 4.0 to 7.0 g/10 min, an I21 determined according to ASTM D 1238 (21.6 kg/190° C.—I21) from 160 to 200 g/10 min, an I21/I2 from 30 to 40 and a terminal vinyl unsaturation greater than 0.06, per 1000 carbon atoms; and a primary structure parameter (PSP2) of from 4 to 7, and an overall Mw/Mn from 2.7 to 3.5 comprising from 2 to 5 weight % of one or more C4-8 alpha olefin comonomers.Type: GrantFiled: September 17, 2015Date of Patent: January 10, 2017Assignee: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Mark Hoidas
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Publication number: 20160229964Abstract: This disclosure relates to rotomolded articles, having a wall structure, where the wall structure contains at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Yd) greater than ?1.0; total catalytic metal ?3.0 ppm; ?0.03 terminal vinyl unsaturations per 100 carbon atoms. The ethylene interpolymer products have a melt index from about 0.5 to about 15 dg/minute, a density from about 0.930 to about 0.955 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 6 and a CDBI50 from about 50% to about 98%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.Type: ApplicationFiled: April 6, 2016Publication date: August 11, 2016Applicant: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, XiaoChuan Wang, Tieqi Li, Christopher John Brooke Dobbin, Fazle Sibtain, Kenneth Edward Taylor, Hamidreza Khakdaman