Patents by Inventor Qinyan Wang

Qinyan Wang 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).

  • Publication number: 20180282453
    Abstract: The various embodiments of the invention provide, a magnesium titanium polymerization procatalyst, methods for making and using the same.
    Type: Application
    Filed: June 6, 2018
    Publication date: October 4, 2018
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Helena Ouskine, Mohamed Aiffa, Amy Baltimore, Holly Severin, Perry Dewit, Steven Clemens, Lawrence Martin Josef Van Asseldonk, Isam Jaber
  • Patent number: 10072111
    Abstract: A solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support. A process for the polymerization of ethylene with one or more alpha olefin catalyzed by a solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: September 11, 2018
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Tyler Craig, Savina Udara Suduweli Kondage, Bradley Wade Funk
  • Publication number: 20180155476
    Abstract: A solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support. A process for the polymerization of ethylene with one or more alpha olefin catalyzed by a solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support.
    Type: Application
    Filed: January 22, 2018
    Publication date: June 7, 2018
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Tyler Craig, Savina Udara Suduweli Kondage, Bradley Wade Funk
  • Patent number: 9963526
    Abstract: Some embodiments herein disclose a process for producing an ethylene polymer or copolymer which contains less than 5 ppm titanium and has a bulk density, in granular form, of at least 22.5 lbs/ft3, using a spheroidal Ziegler-Natta type olefin polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0 and comprising a titanium compound, an aluminum compound, and a spheroidal magnesium chloride support.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: May 8, 2018
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Savini Udara Suduweli Kondage, Mark Kelly, Amy Marie Baltimore, Jessamyn Ross Logan, Tyler Craig
  • Publication number: 20180118863
    Abstract: The various embodiments of the invention provide, a magnesium titanium polymerization procatalyst, methods for making and using the same.
    Type: Application
    Filed: December 21, 2017
    Publication date: May 3, 2018
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Helena Ouskine, Mohamed Aiffa, Amy Baltimore, Holly Severin, Perry Dewit, Steven Clemens, Lawrence Martin Josef Van Asseldonk, Isam Jaber
  • Patent number: 9914793
    Abstract: A solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support. A process for the polymerization of ethylene with one or more alpha olefin catalyzed by a solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: March 13, 2018
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Tyler Craig, Savina Udara Suduweli Kondage, Bradley Wade Funk
  • Publication number: 20170260307
    Abstract: The present invention provides a polyolefin polymer having a bimodal composition with a reduced higher molecular weight component prepared using a self-supported phosphinimine single site catalyst. The catalyst is prepared by precipitating an emulsion of the activated catalyst from a perfluoroalkane continuous phase resulting in spherical catalyst particles having a diameter typically from 5 to 200 ?m.
    Type: Application
    Filed: November 10, 2015
    Publication date: September 14, 2017
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Qinyan WANG, Tyler CRAIG
  • Publication number: 20170240673
    Abstract: In some embodiments provided herein is a self-supported phosphinimine single site catalyst having a molar ratio of Al from the activator (MAO) to the active metal in the catalyst from 5:1 to 30:1. The catalyst is prepared by precipitating an emulsion of the activated catalyst from a perfluoroalkane continuous phase resulting in spherical catalyst particles having a diameter typically from 5 to 200 ?m.
    Type: Application
    Filed: February 21, 2017
    Publication date: August 24, 2017
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Savini Udara Suduweli Kondage, Bradley Wade Funk, Amy Marie Baltimore
  • Publication number: 20170037163
    Abstract: The various embodiments of the invention provide, a magnesium titanium polymerization procatalyst, methods for making and using the same.
    Type: Application
    Filed: October 4, 2016
    Publication date: February 9, 2017
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Helena Ouskine, Mohamed Aiffa, Amy Baltimore, Holly Severin, Perry Dewit, Steven Clemens, Lawrence Martin Josef Van Asseldonk, Isam Jaber
  • Publication number: 20160326282
    Abstract: Some embodiments herein disclose a process for producing an ethylene polymer or copolymer which contains less than 5 ppm titanium and has a bulk density, in granular form, of at least 22.5 lbs/ft3, using a spheroidal Ziegler-Natta type olefin polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0 and comprising a titanium compound, an aluminum compound, and a spheroidal magnesium chloride support.
    Type: Application
    Filed: April 25, 2016
    Publication date: November 10, 2016
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Savini Udara Suduweli Kondage, Mark Kelly, Amy Marie Baltimore, Jessamyn Ross Logan, Tyler Craig
  • Patent number: 9481748
    Abstract: The various embodiments of the invention provide, a magnesium titanium polymerization procatalyst, methods for making and using the same.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: November 1, 2016
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Helena Ouskine, Mohamed Aiffa, Amy Baltimore, Holly Severin, Perry Dewit, Steven Clemens, Lawrence Martin Josef Van Asseldonk, Isam Jaber
  • Publication number: 20160168289
    Abstract: A solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support. A process for the polymerization of ethylene with one or more alpha olefin catalyzed by a solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support.
    Type: Application
    Filed: December 14, 2015
    Publication date: June 16, 2016
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Tyler Craig, Savina Udara Suduweli Kondage, Bradley Wade Funk
  • Publication number: 20160046745
    Abstract: The various embodiments of the invention provide, a magnesium titanium polymerization procatalyst, methods for making and using the same.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 18, 2016
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Qinyan Wang, Helena Ouskine, Mohamed Aiffa, Amy Baltimore, Holly Severin, Perry Dewit, Steven Clemens, Lawrence Martin Josef Van Asseldonk, Isam Jaber
  • Patent number: 8907029
    Abstract: An olefin polymerization catalyst is prepared by (a) in a diluent, combining a diorganomagnesium compound with less than 2 molar equivalents of a first source of chloride to produce a “chloride deficient” magnesium chloride support; (b) without isolating any solids, adding a second source of chloride which reduces the amount of soluble un-reacted diorganomagnesium compound present; (c) without isolating any solids present, adding a tetravalent titanium species and; (d) adding an activator. The catalyst is active for solution polymerization of olefins.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: December 9, 2014
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Peter Zoricak
  • Publication number: 20130012672
    Abstract: An olefin polymerization catalyst is prepared by (a) in a diluent, combining a diorganomagnesium compound with less than 2 molar equivalents of a first source of chloride to produce a “chloride deficient” magnesium chloride support; (b) without isolating any solids, adding a second source of chloride which reduces the amount of soluble un-reacted diorganomagnesium compound present; (c) without isolating any solids present, adding a tetravalent titanium species and; (d) adding an activator. The catalyst is active for solution polymerization of olefins.
    Type: Application
    Filed: March 8, 2011
    Publication date: January 10, 2013
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Qinyan Wang, Peter Zoricak
  • Patent number: 7666810
    Abstract: A magnesium titanium olefin polymerization procatalyst is prepared by A) reacting a diorganomagnesium compound with a source of active chlorine, (with the proviso that the amount of chlorine is insufficient to completely convert the diorganomagnesium to magnesium dichloride); then B) removing unreacted diorganomagnesium from the reaction product; then depositing a tetravalent titanium species on the reaction product. This procatalyst is highly active for the solution polymerization of olefins when combined with a cocatalyst.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: February 23, 2010
    Assignee: NOVA Chemicals (International) S.A.
    Inventor: Qinyan Wang
  • Publication number: 20090264282
    Abstract: A magnesium titanium olefin polymerization procatalyst is prepared by A) reacting a diorganomagnesium compound with a source of active chlorine, (with the proviso that the amount of chlorine is insufficient to completely convert the diorganomagnesium to magnesium dichloride); then B) removing unreacted diorganomagnesium from the reaction product; then C) adding a tetravalent hafnium species to the washed MgCl2 support; then D) depositing a tetravalent titanium species on the supported Hf. This procatalyst is highly active for the solution polymerization of olefins when combined with a cocatalyst.
    Type: Application
    Filed: April 8, 2009
    Publication date: October 22, 2009
    Inventors: Qinyan Wang, Peter Zoricak, Joanna Ronne Newman
  • Publication number: 20080051534
    Abstract: A magnesium titanium olefin polymerization procatalyst is prepared by A) reacting a diorganomagnesium compound with a source of active chlorine, (with the proviso that the amount of chlorine is insufficient to completely convert the diorganomagnesium to magnesium dichloride); then B) removing unreacted diorganomagnesium from the reaction product; then depositing a tetravalent titanium species on the reaction product. This procatalyst is highly active for the solution polymerization of olefins when combined with a cocatalyst.
    Type: Application
    Filed: July 26, 2007
    Publication date: February 28, 2008
    Inventor: Qinyan Wang
  • Patent number: 6806329
    Abstract: Novel ethylene styrene interpolymers having atactic ES repeating units and an alternating structure substantially higher than that predicted using Bernoullian statistics may be prepared in the presence of a transition metal phosphinimine compound and an activator.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: October 19, 2004
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Qinyan Wang, Patrick Lam, Garry Takashi Yamashita
  • Patent number: 6740724
    Abstract: An ethylene styrene copolymer having isolated styrene monomer units separated by 5 or 6 methylene groups as determined by 13C-NMR may be polymerized in the presence of an activator and a transition metal catalyst containing a phosphinimine ligand.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: May 25, 2004
    Assignee: Nova Chemicals (International) S. A.
    Inventors: Qinyan Wang, Patrick Lam, Gail Baxter, James Arthur Auger