Patents by Inventor Jennifer M. Kirschner

Jennifer M. Kirschner 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).

  • Patent number: 9534070
    Abstract: A process to for polymerizing ethylene in the presence of a metal complex of Structure I, as described herein, which comprises a metal selected from one of Groups 3-6, which is bonded to aryl groups via oxygen and two Z groups. The aryl groups comprise substituents R1a, R1aa, through R15a, R15aa, which are selected from hydrogen, halo, hydrocarbyl, trihydrocarbylsilyl, trihydrocarbylsilylhydrocarbyl, —O(R), —N(R?R?), —S(R??), or —P(RIVRV); and each R, R?, R?, R??, RIV and Rv is described herein. Two X groups are also bonded to the metal, and each is halo, hydrocarbyl, or trihydrocarbylsilyl group. Each Z is O, S, N(C1-C40)hydrocarbyl, or P(C1-C40)hydrocarbyl. Groups Y and L form part of a bridge between the Z groups. Y is halo, hydrocarbyl, trihydrocarbylsilyl, trihydrocarbylsilylhydrocarbyl, —O(RVI), —N(RVIIRVIII), —S(RIX), or —P(RXRXI); and each RVI, RVII, RVIII, RIX, RX and RXI is described herein. L is (C1-C40)hydrocarbylene or (C1-C40)heterohydrocarbylene. The invention also provides Structure I.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 3, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Liam P. Spencer, Jennifer M. Kirschner
  • Publication number: 20150307643
    Abstract: A process to for polymerizing ethylene in the presence of a metal complex of Structure I, as described herein, which comprises a metal selected from one of Groups 3-6, which is bonded to aryl groups via oxygen and two Z groups. The aryl groups comprise substituents R1a, R1aa, through R15a, R15aa, which are selected from hydrogen, halo, hydrocarbyl, trihydrocarbylsilyl, trihydrocarbylsilylhydrocarbyl, —O(R), —N(R?R?), —S(R??), or —P(RIVRV); and each R, R?, R?, R??, RIV and Rv is described herein. Two X groups are also bonded to the metal, and each is halo, hydrocarbyl, or trihydrocarbylsilyl group. Each Z is O, S, N(C1-C40)hydrocarbyl, or P(C1-C40)hydrocarbyl. Groups Y and L form part of a bridge between the Z groups. Y is halo, hydrocarbyl, trihydrocarbylsilyl, trihydrocarbylsilylhydrocarbyl, —O(RVI), —N(RVIIRVIII), —S(RIX), or —P(RXRXI); and each RVI, RVII, RVIII, RIX, RX and RXI is described herein. L is (C1-C40)hydrocarbylene or (C1-C40)heterohydrocarbylene. The invention also provides Structure I.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 29, 2015
    Inventors: Liam P. Spencer, Jennifer M. Kirschner