Patents by Inventor Amanda B. Allemand

Amanda B. Allemand 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).

  • Preparation of large pore silicas and uses thereof in chromium catalysts for olefin polymerization
    Patent number: 11548958
    Abstract: Silica composites and supported chromium catalysts having a bulk density of 0.08 to 0.4 g/mL, a total pore volume of 0.4 to 2.5 mL/g, a BET surface area of 175 to 375 m2/g, and a peak pore diameter of 10 to 80 nm are disclosed herein. These silica composites and supported chromium catalysts can be formed by combining two silica components. The first silica component can be irregularly shaped, such as fumed silica, and the second silica component can be a colloidal silica or a silicon-containing compound, and the second silica component can act as a glue to bind the silica composite together.
    Type: Grant
    Filed: May 19, 2022
    Date of Patent: January 10, 2023
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Kathy S. Clear, Carlton E. Ash, Stephen L. Kelly, Amanda B. Allemand
  • Preparation of Large Pore Silicas and Uses Thereof in Chromium Catalysts for Olefin Polymerization
    Publication number: 20220275116
    Abstract: Silica composites and supported chromium catalysts having a bulk density of 0.08 to 0.4 g/mL, a total pore volume of 0.4 to 2.5 mL/g, a BET surface area of 175 to 375 m2/g, and a peak pore diameter of 10 to 80 nm are disclosed herein. These silica composites and supported chromium catalysts can be formed by combining two silica components. The first silica component can be irregularly shaped, such as fumed silica, and the second silica component can be a colloidal silica or a silicon-containing compound, and the second silica component can act as a glue to bind the silica composite together.
    Type: Application
    Filed: May 19, 2022
    Publication date: September 1, 2022
    Inventors: Max P. McDaniel, Kathy S. Clear, Carlton E. Ash, Stephen L. Kelly, Amanda B. Allemand
  • Preparation of large pore silicas and uses thereof in chromium catalysts for olefin polymerization
    Patent number: 11384175
    Abstract: Silica composites and supported chromium catalysts having a bulk density of 0.08 to 0.4 g/mL, a total pore volume of 0.4 to 2.5 mL/g, a BET surface area of 175 to 375 m2/g, and a peak pore diameter of 10 to 80 nm are disclosed herein. These silica composites and supported chromium catalysts can be formed by combining two silica components. The first silica component can be irregularly shaped, such as fumed silica, and the second silica component can be a colloidal silica or a silicon-containing compound, and the second silica component can act as a glue to bind the silica composite together.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: July 12, 2022
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Kathy S. Clear, Carlton E. Ash, Stephen L. Kelly, Amanda B. Allemand
  • Preparation of Large Pore Silicas and Uses Thereof in Chromium Catalysts for Olefin Polymerization
    Publication number: 20220002449
    Abstract: Silica composites and supported chromium catalysts having a bulk density of 0.08 to 0.4 g/mL, a total pore volume of 0.4 to 2.5 mL/g, a BET surface area of 175 to 375 m2/g, and a peak pore diameter of 10 to 80 nm are disclosed herein. These silica composites and supported chromium catalysts can be formed by combining two silica components. The first silica component can be irregularly shaped, such as fumed silica, and the second silica component can be a colloidal silica or a silicon-containing compound, and the second silica component can act as a glue to bind the silica composite together.
    Type: Application
    Filed: September 16, 2021
    Publication date: January 6, 2022
    Inventors: Max P. McDaniel, Kathy S. Clear, Carlton E. Ash, Stephen L. Kelly, Amanda B. Allemand
  • Preparation of large pore silicas and uses thereof in chromium catalysts for olefin polymerization
    Patent number: 11186656
    Abstract: Silica composites and supported chromium catalysts having a bulk density of 0.08 to 0.4 g/mL, a total pore volume of 0.4 to 2.5 mL/g, a BET surface area of 175 to 375 m2/g, and a peak pore diameter of 10 to 80 nm are disclosed herein. These silica composites and supported chromium catalysts can be formed by combining two silica components. The first silica component can be irregularly shaped, such as fumed silica, and the second silica component can be a colloidal silica or a silicon-containing compound, and the second silica component can act as a glue to bind the silica composite together.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: November 30, 2021
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Kathy S. Clear, Carlton E. Ash, Stephen L. Kelly, Amanda B. Allemand
  • Preparation of Large Pore Silicas and Uses Thereof in Chromium Catalysts for Olefin Polymerization
    Publication number: 20200369796
    Abstract: Silica composites and supported chromium catalysts having a bulk density of 0.08 to 0.4 g/mL, a total pore volume of 0.4 to 2.5 mL/g, a BET surface area of 175 to 375 m2/g, and a peak pore diameter of 10 to 80 nm are disclosed herein. These silica composites and supported chromium catalysts can be formed by combining two silica components. The first silica component can be irregularly shaped, such as fumed silica, and the second silica component can be a colloidal silica or a silicon-containing compound, and the second silica component can act as a glue to bind the silica composite together.
    Type: Application
    Filed: May 24, 2019
    Publication date: November 26, 2020
    Inventors: Max P. McDaniel, Kathy S. Clear, Carlton E. Ash, Stephen L. Kelly, Amanda B. Allemand