Patents by Inventor Stacy Jordahl

Stacy Jordahl 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: 20250101149
    Abstract: Processes for making propylene-based copolymers having broad molecular weight distributions and broad comonomer distributions using a single tubular reactor. Processes for making a propylene-based copolymer can include introducing propylene and at least one other olefin comonomer to a tubular reactor to produce a propylene-based copolymer having a broad comonomer distribution, a Mw of about 10 kg/mol to about 2.000 kg/mol, and a MWD of about 2.0 to about 10.0. The tubular reactor can include one or more heat exchanger elements, preferably a spiral heat exchanger. Propylene-based copolymer compositions can include propylene derived units and at least one other comonomer derived units, wherein the copolymer compositions have a broad comonomer distribution, a Mw of about 10 kg/mol to about 2.000 kg/mol, and a MWD of about 2.0 to about 10.0. Such compositions can have broad orthogonal comonomer distributions.
    Type: Application
    Filed: December 14, 2022
    Publication date: March 27, 2025
    Inventors: Stacy Jordahl, Jun Shi, Rong Ma, Antonios K. Doufas, Narayanaswami Dharmarajan
  • Publication number: 20240239929
    Abstract: The present disclosure relates to a process including introducing a feed to a catalyst and an activator to provide a solution in a continuous or semi-continuous reactor. The feed can include a solvent, and a first monomer that is propylene. The reactor can include polymerization conditions including a pressure of about 1 MPa to about 5 MPa and/or a temperature of about 60° C. to about 120° C. The solution can be circulated to form a biphasic product including a first portion and a second portion, the first portion having a propylene based polymer having a polydispersity index of about 1.5 to about 15, and weight average molecular weight (Mw) of about 50,000 g/mol or greater, according to GPC-4D.
    Type: Application
    Filed: April 26, 2022
    Publication date: July 18, 2024
    Inventors: Jun Shi, Jay L. Reimers, Yifeng Hong, Keifer D. Slaton, Adrian G. Barry, Vetkav R. Eswaran, Brian R. Greenhalgh, Stacy Jordahl