Patents by Inventor Craig Meverden

Craig Meverden 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).

  • PROPYLENE POLYMER RESINS
    Publication number: 20230312783
    Abstract: Propylene-based polymer resins and related compositions and processes are disclosed. The propylene polymer resins have high isotacticity and moderately high xylene soluble content. The polymer resins provide extruded sheets suitable for thermo forming that exhibit both sag resistance and ease of draw.
    Type: Application
    Filed: June 8, 2023
    Publication date: October 5, 2023
    Inventors: Kimberly Miller McLoughlin, Rodney Peratt, Craig Meverden, Michael Stephans
  • Non-phthalate catalyst system and its use in the polymerization of olefins
    Patent number: 11117982
    Abstract: This invention relates to a non-phthalate catalyst system for olefin polymerization. The non-phthalate catalyst system comprises (a) a solid Ziegler-Natta catalyst composition comprising a transition metal, a Group 2 metal, and one or more halogens; and one or more internal electron donor compounds; and (b) one or more external electron donor compounds.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: September 14, 2021
    Assignee: BRASKEM AMERICA, INC.
    Inventors: Brandi Mitchell, Craig Meverden
  • Non-phthalate catalyst system and its use in the polymerization of olefins
    Patent number: 11041028
    Abstract: This invention relates to a non-phthalate catalyst system for olefin polymerization. The non-phthalate catalyst system comprises (a) a solid Ziegler-Natta catalyst composition comprising a transition metal, a Group 2 metal, and one or more halogens; and one or more internal electron donor compounds; and (b) one or more external electron donor compounds.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: June 22, 2021
    Assignee: BRASKEM AMERICA, INC.
    Inventors: Brandi Mitchell, Craig Meverden
  • NON-PHTHALATE CATALYST SYSTEM AND ITS USE IN THE POLYMERIZATION OF OLEFINS
    Publication number: 20200199262
    Abstract: This invention relates to a non-phthalate catalyst system for olefin polymerization. The non-phthalate catalyst system comprises (a) a solid Ziegler-Natta catalyst composition comprising a transition metal, a Group 2 metal, and one or more halogens; and one or more internal electron donor compounds; and (b) one or more external electron donor compounds.
    Type: Application
    Filed: March 4, 2020
    Publication date: June 25, 2020
    Inventors: Brandi Mitchell, Craig Meverden
  • Non-phthalate catalyst system and its use in the polymerization of olefins
    Patent number: 10633464
    Abstract: This invention relates to a non-phthalate catalyst system for olefin polymerization. The non-phthalate catalyst system comprises (a) a solid Ziegler-Natta catalyst composition comprising a transition metal, a Group 2 metal, and one or more halogens; and one or more internal electron donor compounds; and (b) one or more external electron donor compounds.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: April 28, 2020
    Assignee: BRASKEM AMERICA, INC.
    Inventors: Brandi Mitchell, Craig Meverden
  • Non-phthalate catalyst system and its use in the polymerization of olefins
    Patent number: 10633463
    Abstract: This invention relates to a non-phthalate catalyst system for olefin polymerization. The non-phthalate catalyst system comprises (a) a solid Ziegler-Natta catalyst composition comprising a transition metal, a Group 2 metal, and one or more halogens; and one or more internal electron donor compounds; and (b) one or more external electron donor compounds.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: April 28, 2020
    Assignee: BRASKEM AMERICA, INC.
    Inventors: Brandi Mitchell, Craig Meverden
  • NON-PHTHALATE CATALYST SYSTEM AND ITS USE IN THE POLYMERIZATION OF OLEFINS
    Publication number: 20190016832
    Abstract: This invention relates to a non-phthalate catalyst system for olefin polymerization. The non-phthalate catalyst system comprises (a) a solid Ziegler-Natta catalyst composition comprising a transition metal, a Group 2 metal, and one or more halogens; and one or more internal electron donor compounds; and (b) one or more external electron donor compounds.
    Type: Application
    Filed: December 29, 2016
    Publication date: January 17, 2019
    Applicant: BRASKEM AMERICA, INC.
    Inventors: Brandi Mitchell, Craig Meverden
  • NON-PHTHALATE CATALYST SYSTEM AND ITS USE IN THE POLYMERIZATION OF OLEFINS
    Publication number: 20190010264
    Abstract: This invention relates to a non-phthalate catalyst system for olefin polymerization. The non-phthalate catalyst system comprises (a) a solid Ziegler-Natta catalyst composition comprising a transition metal, a Group 2 metal, and one or more halogens; and one or more internal electron donor compounds; and (b) one or more external electron donor compounds.
    Type: Application
    Filed: December 29, 2016
    Publication date: January 10, 2019
    Inventors: Brandi Mitchell, Craig Meverden
  • NON-PHTHALATE CATALYST SYSTEM AND ITS USE IN THE POLYMERIZATION OF OLEFINS
    Publication number: 20190010258
    Abstract: This invention relates to a non-phthalate catalyst system for olefin polymerization. The non-phthalate catalyst system comprises (a) a solid Ziegler-Natta catalyst composition comprising a transition metal, a Group 2 metal, and one or more halogens; and one or more internal electron donor compounds; and (b) one or more external electron donor compounds.
    Type: Application
    Filed: December 29, 2016
    Publication date: January 10, 2019
    Inventors: Brandi Mitchell, Craig Meverden
  • PROPYLENE POLYMER RESINS
    Publication number: 20160046737
    Abstract: Propylene-based polymer resins and related compositions and processes are disclosed. The propylene polymer resins have high isotacticity and moderately high xylene soluble content. The polymer resins provide extruded sheets suitable for thermo-forming that exhibit both sag resistance and ease of draw.
    Type: Application
    Filed: March 14, 2014
    Publication date: February 18, 2016
    Inventors: Kimberly Miller McLoughlin, Rodney Peratt, Craig Meverden, Michael Stephans
  • High crystallinity, high melt flow rate polypropylene
    Patent number: 7465776
    Abstract: High melt flow rate high crystallinity polypropylene homopolymer are produced in a bulk polymerization process using a Ziegler-Natta catalyst containing a combination of two internal electron donors and selected external donors. The high melt flow rate, high crystallinity polypropylene homopolymers produced according to the current invention display improved flexural modulus and tensile yield stress when nucleated.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: December 16, 2008
    Assignee: Sunoco, Inc. (R&M)
    Inventors: Craig Meverden, Andrew Schnitgen, Sehyun Kim
  • High crystallinity, high melt flow rate polypropylene
    Publication number: 20070287813
    Abstract: High melt flow rate high crystallinity polypropylene homopolymer are produced in a bulk polymerization process using a Ziegler-Natta catalyst containing a combination of two internal electron donors and selected external donors. The high melt flow rate, high crystallinity polypropylene homopolymers produced according to the current invention display improved flexural modulus and tensile yield stress when nucleated.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 13, 2007
    Inventors: Craig Meverden, Andrew Schnitgen, Sehyun Kim