Patents by Inventor Mark Hoidas
Mark Hoidas 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: 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: 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: 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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Patent number: 9321865Abstract: Resins suitable for rotomolded articles comprise a bimodal polyethylene copolymer comprising from 0.1 to 5 weight % of one or more C6-8 alpha olefins and the balance ethylene, comprising from 20 to 50 weight % of a higher molecular weight polymer component having an Mw greater than 120,000 and correspondingly from 80 to 50 weight % of a lower molecular weight polymer component having an Mw less than 100,000 having a density greater than 0.942 g/cc [but less than 0.965 g/cc] and a bent strip ESCR as determined by ASTM D 1693 in 100% Igepal® CO-630 (ethoxylated nonylphenols) for conditions A and B of greater than 1000 hours. The resulting articles have a very good balance of properties and significant ESCR.Type: GrantFiled: September 4, 2015Date of Patent: April 26, 2016Assignee: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Yves Lacombe, Mark Hoidas
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Publication number: 20160002448Abstract: 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: ApplicationFiled: September 17, 2015Publication date: January 7, 2016Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.Inventors: Celine Bellehumeur, Mark Hoidas
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Publication number: 20150376313Abstract: Resins suitable for rotomolded articles comprise a bimodal polyethylene copolymer comprising from 0.1 to 5 weight % of one or more C6-8 alpha olefins and the balance ethylene, comprising from 20 to 50 weight % of a higher molecular weight polymer component having an Mw greater than 120,000 and correspondingly from 80 to 50 weight % of a lower molecular weight polymer component having an Mw less than 100,000 having a density greater than 0.942 g/cc [but less than 0.965 g/cc] and a bent strip ESCR as determined by ASTM D 1693 in 100% Igepal® CO-630 (ethoxylated nonylphenols) for conditions A and B of greater than 1000 hours. The resulting articles have a very good balance of properties and significant ESCR.Type: ApplicationFiled: September 4, 2015Publication date: December 31, 2015Applicant: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Yves Lacombe, Mark Hoidas
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Patent number: 9181422Abstract: 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: November 7, 2014Date of Patent: November 10, 2015Assignee: NOVA Chemicals (International) S.A.Inventors: Marie Therese Celine Bellehumeur, Mark Hoidas
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Patent number: 9156971Abstract: Resins suitable for rotomolded articles comprise a bimodal polyethylene copolymer comprising from 0.1 to 5 weight % of one or more C6-8 alpha olefins and the balance ethylene, comprising from 20 to 50 weight % of a higher molecular weight polymer component having an Mw greater than 120,000 and correspondingly from 80 to 50 weight % of a lower molecular weight polymer component having an Mw less than 100,000 having a density greater than 0.942 g/cc [but less than 0.965 g/cc] and a bent strip ESCR as determined by ASTM D 1693 in 100 % Igepal® CO-630 (ethoxylated nonylphenols) for conditions A and B of greater than 1000 hours. The resulting articles have a very good balance of properties and significant ESCR.Type: GrantFiled: November 7, 2014Date of Patent: October 13, 2015Assignee: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Yves Lacombe, Mark Hoidas
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Publication number: 20150141579Abstract: 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: ApplicationFiled: November 7, 2014Publication date: May 21, 2015Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.Inventors: Marie Therese Celine Bellehumeur, Mark Hoidas
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Publication number: 20150065657Abstract: Resins suitable for rotomolded articles comprise a bimodal polyethylene copolymer comprising from 0.1 to 5 weight % of one or more C6-8 alpha olefins and the balance ethylene, comprising from 20 to 50 weight % of a higher molecular weight polymer component having an Mw greater than 120,000 and correspondingly from 80 to 50 weight % of a lower molecular weight polymer component having an Mw less than 100,000 having a density greater than 0.942 g/cc [but less than 0.965 g/cc] and a bent strip ESCR as determined by ASTM D 1693 in 100% Igepal® CO-630 (ethoxylated nonylphenols) for conditions A and B of greater than 1000 hours. The resulting articles have a very good balance of properties and significant ESCR.Type: ApplicationFiled: November 7, 2014Publication date: March 5, 2015Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.Inventors: Celine Bellehumeur, Yves Lacombe, Mark Hoidas
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Patent number: 8907018Abstract: Resins suitable for rotomolded articles comprise a bimodal polyethylene copolymer comprising from 0.1 to 5 weight % of one or more C6-8 alpha olefins and the balance ethylene, comprising from 20 to 50 weight % of a higher molecular weight polymer component having an Mw greater than 120,000 and correspondingly from 80 to 50 weight % of a lower molecular weight polymer component having an Mw less than 100,000 having a density greater than 0.942 g/cc [but less than 0.965 g/cc] and a bent strip ESCR as determined by ASTM D 1693 in 100% Igepal® CO-630 (ethoxylated nonylphenols) for conditions A and B of greater than 1000 hours. The resulting articles have a very good balance of properties and significant ESCR.Type: GrantFiled: May 9, 2013Date of Patent: December 9, 2014Assignee: NOVA Chemicals (International) S.A.Inventors: Celine Bellehumeur, Yves Lacombe, Mark Hoidas
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Publication number: 20130310532Abstract: Resins suitable for rotomolded articles comprise a bimodal polyethylene copolymer comprising from 0.1 to 5 weight % of one or more C6-8 alpha olefins and the balance ethylene, comprising from 20 to 50 weight % of a higher molecular weight polymer component having an Mw greater than 120,000 and correspondingly from 80 to 50 weight % of a lower molecular weight polymer component having an Mw less than 100,000 having a density greater than 0.942 g/cc [but less than 0.965 g/cc] and a bent strip ESCR as determined by ASTM D 1693 in 100% Igepal® CO-630 (ethoxylated nonylphenols) for conditions A and B of greater than 1000 hours. The resulting articles have a very good balance of properties and significant ESCR.Type: ApplicationFiled: May 9, 2013Publication date: November 21, 2013Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.Inventors: Celine Bellehumeur, Yves Lacombe, Mark Hoidas