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).

  • Patent number: 10189924
    Abstract: 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: Grant
    Filed: April 12, 2018
    Date of Patent: January 29, 2019
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Celine Bellehumeur, Mark Hoidas
  • Publication number: 20180230255
    Abstract: 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: Application
    Filed: April 12, 2018
    Publication date: August 16, 2018
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Celine Bellehumeur, Mark Hoidas
  • Patent number: 9982077
    Abstract: 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: Grant
    Filed: December 5, 2016
    Date of Patent: May 29, 2018
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Celine Bellehumeur, Mark Hoidas
  • Publication number: 20170158789
    Abstract: 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: Application
    Filed: December 5, 2016
    Publication date: June 8, 2017
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Celine Bellehumeur, Mark Hoidas
  • Patent number: 9540505
    Abstract: 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: Grant
    Filed: September 17, 2015
    Date of Patent: January 10, 2017
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Celine Bellehumeur, Mark Hoidas
  • Patent number: 9321865
    Abstract: 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: Grant
    Filed: September 4, 2015
    Date of Patent: April 26, 2016
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Celine Bellehumeur, Yves Lacombe, Mark Hoidas
  • Publication number: 20160002448
    Abstract: 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: Application
    Filed: September 17, 2015
    Publication date: January 7, 2016
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Celine Bellehumeur, Mark Hoidas
  • Publication number: 20150376313
    Abstract: 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: Application
    Filed: September 4, 2015
    Publication date: December 31, 2015
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Celine Bellehumeur, Yves Lacombe, Mark Hoidas
  • Patent number: 9181422
    Abstract: 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: Grant
    Filed: November 7, 2014
    Date of Patent: November 10, 2015
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Marie Therese Celine Bellehumeur, Mark Hoidas
  • Patent number: 9156971
    Abstract: 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: Grant
    Filed: November 7, 2014
    Date of Patent: October 13, 2015
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Celine Bellehumeur, Yves Lacombe, Mark Hoidas
  • Publication number: 20150141579
    Abstract: 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: Application
    Filed: November 7, 2014
    Publication date: May 21, 2015
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Marie Therese Celine Bellehumeur, Mark Hoidas
  • Publication number: 20150065657
    Abstract: 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: Application
    Filed: November 7, 2014
    Publication date: March 5, 2015
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Celine Bellehumeur, Yves Lacombe, Mark Hoidas
  • Patent number: 8907018
    Abstract: 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: Grant
    Filed: May 9, 2013
    Date of Patent: December 9, 2014
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Celine Bellehumeur, Yves Lacombe, Mark Hoidas
  • Publication number: 20130310532
    Abstract: 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: Application
    Filed: May 9, 2013
    Publication date: November 21, 2013
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Celine Bellehumeur, Yves Lacombe, Mark Hoidas