Patents by Inventor Mrunmayi Kumbhalkar

Mrunmayi Kumbhalkar 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).

  • Catalyst separation process
    Patent number: 11878296
    Abstract: A process for separating a catalyst component from a catalyst-containing slurry by centrifugation including separating the catalyst component from the mother liquor of the catalyst-containing slurry using a stacked disc centrifuge equipped with an auto-discharging functionality. The solids discharge from the stacked disc centrifuge is enhanced by adding a washing solution to the bowl and the solids discharge chute of the stacked disc centrifuge.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: January 23, 2024
    Assignee: Dow Global Technologies LLC
    Inventors: Mrunmayi Kumbhalkar, Wu Chen, Brian Murdoch, Haifeng Shi, Lin Zhao
  • CATALYST SEPARATION PROCESS
    Publication number: 20230019789
    Abstract: A process for separating a catalyst component from a catalyst-containing slurry by centrifugation including separating the catalyst component from the mother liquor of the catalyst-containing slurry using a stacked disc centrifuge equipped with an auto-discharging functionality. The solids discharge from the stacked disc centrifuge is enhanced by adding a washing solution to the bowl and the solids discharge chute of the stacked disc centrifuge.
    Type: Application
    Filed: January 25, 2021
    Publication date: January 19, 2023
    Inventors: Mrunmayi Kumbhalkar, Wu Chen, Brian Murdoch, Haifeng Shi, Lin Zhao
  • POLYETHER POLYMERIZATION PROCESS
    Publication number: 20220049052
    Abstract: Polyethers are prepared by polymerizing an alkylene oxide in the presence of a double metal cyanide catalyst complex and certain M5 metal or semi-metal compounds. The double metal cyanide catalyst complex contains 0 5 to 2 weight percent potassium. The ability of this catalyst system to tolerate such high amounts of potassium permits the catalyst preparation procedure to be simplified and less expensive.
    Type: Application
    Filed: February 17, 2020
    Publication date: February 17, 2022
    Inventors: Haifeng Shi, Mrunmayi Kumbhalkar, Jason S. Fisk, Curtis M. Whaley, David A. Babb, Brian J. Murdoch