Patents by Inventor Ronald N. Cooke

Ronald N. Cooke 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).

  • Processes for reducing the loss of catalyst activity of a Ziegler-Natta catalyst
    Patent number: 11311870
    Abstract: A process for reducing the loss of catalyst activity of a Ziegler-Natta catalyst is provided. The process includes preparing a Ziegler-Natta (ZN) catalyst by contacting the ZN catalyst with at least one aluminum alkyl compound to produce a reduced ZN catalyst and storing and/or transporting the reduced ZN catalyst for at least 20 days at a temperature of 25° C. or less. The reduced ZN catalyst may be used for polymerizing polyolefin polymers.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: April 26, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Edward F. Smith, George A. Vaughan, Michael Awe, James R. Sollen, Ronald N. Cooke, Sateesh K. Rajput, Ahmed H. Ali
  • Rotomolded compositions, articles, and processes for making the same
    Patent number: 10995203
    Abstract: Rotomolded compositions and articles made therefrom using metallocene-catalyzed polyolefin polymers and at least one adhesion promoter are provided.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: May 4, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Ronald N. Cooke, Timothy K. Bean
  • Processes for Reducing the Loss of Catalyst Activity of a Ziegler-Natta Catalyst
    Publication number: 20200030785
    Abstract: A process for reducing the loss of catalyst activity of a Ziegler-Natta catalyst is provided. The process includes preparing a Ziegler-Natta (ZN) catalyst by contacting the ZN catalyst with at least one aluminum alkyl compound to produce a reduced ZN catalyst and storing and/or transporting the reduced ZN catalyst for at least 20 days at a temperature of 25° C. or less. The reduced ZN catalyst may be used for polymerizing polyolefin polymers.
    Type: Application
    Filed: December 13, 2017
    Publication date: January 30, 2020
    Inventors: Edward F. Smith, George A. Vaughan, Michael Awe, James R. Sollen, Ronald N. Cooke, Sateesh K. Rajput, Ahmed H. Ali
  • Rotomolded Compositions, Articles, and Processes for Making the Same
    Publication number: 20190284376
    Abstract: Rotomolded compositions and articles made therefrom using metallocene-catalyzed polyolefin polymers and at least one adhesion promoter are provided.
    Type: Application
    Filed: May 15, 2017
    Publication date: September 19, 2019
    Applicant: ExxonMobil Chemical Patents inc.
    Inventors: Ronald N. COOKE, Timothy K. BEAN
  • Linear polymers, polymer blends, and articles made therefrom
    Patent number: 8247065
    Abstract: Provided are blends of linear low density polyethylene copolymers with very low density, low density, medium density, high density, and differentiated polyethylenes and other polymers. The invention also includes articles produced from the linear low density polyethylene and polyethylene blends described herein.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: August 21, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Steven A. Best, Bernard L. Bossaert, Ronald N. Cooke, Paul M. German, Blair A. Graham, Carlos A. Mota, Calvin K. Schram, Barry C. Trudell
  • Linear polymers, polymer blends, and articles made therefrom
    Publication number: 20080038533
    Abstract: Provided are blends of linear low density polyethylene copolymers with very low density, low density, medium density, high density, and differentiated polyethylenes and other polymers. The invention also includes articles produced from the linear low density polyethylene and polyethylene blends described herein.
    Type: Application
    Filed: April 24, 2007
    Publication date: February 14, 2008
    Inventors: Steven A. Best, Bernard L. Bossaert, Ronald N. Cooke, Paul M. German, Blair A. Graham, Carlos A. Mota, Calvin K. Schram, Barry C. Trudell