Patents by Inventor Robert D. J. Froese

Robert D. J. Froese 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: 20200299420
    Abstract: An olefin polymerization catalyst system comprising: a procatalyst component comprising a metal-ligand complex of Formula (I) wherein each X is independently a monodentate or polydentate ligand that is neutral, monoanionic, or dianionic, wherein n is an integer, and wherein X and n are chosen such that the metal-ligand complex of Formula (I) is overall neutral; wherein each R1 and R5 independently is selected from (C1-C40)hydrocarbyls, substituted (C1-C40)hydrocarbyls; (C1-C40)heterohydrocarbyls and substituted (C1-C40)heterohydrocarbyls; wherein each R2 and R4 independently is selected from (C1-C40)hydrocarbyls and substituted (C1-C40)hydrocarbyls; wherein R3 is selected from the group consisting of a (C3-C40)hydrocarbylene, substituted (C3-C40)hydrocarbylene, [(C+Si)3-(C+Si)40]organosilylene, substituted [(C+Si)3-(C+Si)40]organosilylene, [(C+Ge)3-(C+Ge)40]organogermylene, or substituted [(C+Ge)3-(C+Ge)40]organogermylene; wherein each N independently is nitrogen; and optionally, two or more R1-5 groups each
    Type: Application
    Filed: March 30, 2017
    Publication date: September 24, 2020
    Applicant: Dow Global Technologies LLC
    Inventors: Brad C. Bailey, Matthew D. Christianson, Anna V. Davis, Andrew M. Camelio, Robert D.J. Froese, Jessica L. Klinkenberg
  • Publication number: 20200190228
    Abstract: Embodiments are directed to a catalyst system comprising metal ligand complexes and processes for polyolefin polymerization using the metal ligand complex having the following structure:
    Type: Application
    Filed: June 18, 2018
    Publication date: June 18, 2020
    Applicant: Dow Global Technologies LLC
    Inventors: Endre Szuromi, David D. Devore, Robert D.J. Froese, Arkady L. Krasovskiy, Lixin Sun, Kevin A. Frazier, Joseph S. Renny
  • Publication number: 20200157254
    Abstract: Embodiments are directed to catalyst systems comprising at least one metal ligand complex and to processes for polyolefin polymerization incorporating the catalyst systems.
    Type: Application
    Filed: June 20, 2018
    Publication date: May 21, 2020
    Applicant: Dow Global Technologies LLC
    Inventors: Andrew M. Camelio, Endre Szuromi, David D. Devore, Robert D.J. Froese
  • Publication number: 20200131289
    Abstract: Embodiments are directed to catalyst systems comprising at least one metal ligand complex and to processes for polyolefin polymerization incorporating the catalyst systems.
    Type: Application
    Filed: June 19, 2018
    Publication date: April 30, 2020
    Applicant: Dow Global Technologies LLC
    Inventors: Andrew M. Camelio, Endre Szuromi, David D. Devore, Robert D.J. Froese
  • Patent number: 10144791
    Abstract: A process for preparing an olefin homopolymer or copolymer comprises contacting ethylene, an alpha-olefin, or a combination, and a catalytic amount of a metal-ligand complex catalyst of a particular formula that requires at least one halogen atom that is ortho to a bridging moiety. The strategic location of the halogen atom(s) ensures a product having a molecular weight that is predictably and significantly reduced in comparison with that of copolymers produced using otherwise identical metal-ligand complex catalysts that lack halogen atoms at the specified sites.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: December 4, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Jerzy Klosin, Ruth Figueroa, Robert D J Froese
  • Patent number: 9951256
    Abstract: Epoxy adhesive compositions contain a heat-activatable catalyst. The heat-activatable catalyst includes a tertiary amine catalyst and a novolac resin that has a weight average molecular weight of at least 3000. One-component epoxy adhesive formulations that contain the heat-activatable catalyst have unexpectedly good storage stability.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: April 24, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Ming Ming, Shaoguang Feng, Yan Fei Liu, Robert D J Froese, Andreas Lutz, Glenn G. Eagle, Gary L. Jialanella, Eric E. Cole, Michael R. Golden
  • Patent number: 9605098
    Abstract: A process for preparing an olefin homopolymer or copolymer comprises contacting ethylene, an alpha-olefin, or a combination, and a catalytic amount of a metal-ligand complex catalyst of a particular formula that requires at least one halogen atom that is ortho to a bridging moiety. The strategic location of the halogen atom(s) ensures a product having a molecular weight that is predictably and significantly reduced in comparison with that of copolymers produced using otherwise identical metal-ligand complex catalysts that lack halogen atoms at the specified sites.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: March 28, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Jerzy Klosin, Ruth Figueroa, Robert D J Froese
  • Patent number: 9598368
    Abstract: 4-Amino-3-chloro-5-fluoro-6-(substituted)picolinates are conveniently prepared from 3,4,5,6-tetrachloropicolinonitrile by a series of steps involving fluorine exchange, amination, reaction with hydrazine, halogenation, hydrolysis and esterification, and transition metal assisted coupling.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: March 21, 2017
    Assignee: Dow AgroSciences LLC
    Inventors: Yuanming Zhu, Gregory T. Whiteker, Cynthia Arndt, James M. Renga, Robert D. J. Froese
  • Patent number: 9422375
    Abstract: Provided is a non-cyclopentadienyl-based chromium-ligand complex, preferably a chromium-ligand complex of formula (J): LCr(RA)m(D)k (J), wherein L is a non-Cp monoanionic ligand; Cr (chromium) is in a formal oxidation state of +3 or +2; when Cr formally is Cr+3, either m is 1 and RA is hydrocarbylene (a hydrocarbylene chromium-ligand complex of formula (J)) or m is 2 and each RA independently is hydrocarbyl (a dihydrocarbyl chromium-ligand complex of formula (J)), wherein each hydrocarbyl or hydrocarbylene of RA independently is unsubstituted or substituted by from 1 to 5 RAS; each RAS independently is a neutral aprotic heteroalkyl, neutral aprotic heterocycloalkyl, neutral aprotic heteroaryl, or neutral aprotic aryl; when Cr formally is Cr+2, m is 1 and RA is hydrocarbyl (a hydrocarbyl chromium-ligand complex of formula (J)); k is an integer of 0 or 1; D is absent when k is 0 or D is a neutral ligand when k is 1; wherein the chromium-ligand complex of formula (J) is overall neutral and lacks a cyclopentadien
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: August 23, 2016
    Inventors: Matthew D. Christianson, Timothy S. De Vries, Robert D J Froese, Matthias S. Ober, Jasson T. Patton, Duane R. Romer, Gordon R. Roof, Lixin Sun, Endre Szuromi, Curt N. Theriault, Dean M. Welsh, Timothy T. Wenzel, Paul H. Moran
  • Patent number: 8969495
    Abstract: The present invention relates to compositions and processes of making ethylene/?-olefins. More particularly, the invention relates to processes of producing ethylene/?-olefin compositions having a controlled molecular weight distribution. The molecular weight distribution is controlled, for example, by controlling the relative monomer concentrations during contact with a pre-catalyst and/or using a catalyst comprising a catalytic amount of a molecule having the structure: wherein M=group 2-8 metal, preferably group 4 as a neutral or charged moiety; Y=any substituent including fused rings; L=any ligating group, especially a pyridyl or pyridylamide; X=alkyl, aryl, substituted alkyl, H or hydride, halide, or other anionic moiety; y=an integer from 0 to the complete valence of M; R=alkyl, aryl, haloalkyl, haloaryl, hydrogen, etc; x=1-6, especially 2; Dashed line=optional bond, especially a weak bond; and X and (CR2)x may be tethered or part of a ring.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: March 3, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Phillip D. Hustad, Roger L. Kuhlman, Robert D. J. Froese, Timothy T. Wenzel, Joseph N. Coalter, III
  • Publication number: 20140046070
    Abstract: 4-Amino-3-chloro-5-fluoro-6-(substituted)picolinates are conveniently prepared from 3,4,5,6-tetrachloropicolinonitrile by a series of steps involving fluorine exchange, amination, reaction with hydrazine, halogenation, hydrolysis and esterification, and transition metal assisted coupling.
    Type: Application
    Filed: October 9, 2013
    Publication date: February 13, 2014
    Applicant: DOW AGROSCIENCES LLC
    Inventors: Cynthia Armdt, James M. Renga, Kim E. Arndt, Gregory T. Whiteker, Yuanming Zhu, Robert D.J. Froese
  • Patent number: 8362162
    Abstract: The present invention relates to compositions and processes of making polymers having a controlled molecular weight distribution. The molecular weight distribution is controlled, for example, by controlling the relative monomer concentrations during contact with a pre-catalyst and/or using a catalyst comprising a catalytic amount of a molecule having the structure: wherein M=group 2-8 metal, preferably group 4 as a neutral or charged moiety; Y=any substituent including fused rings; L=any ligating group, especially a pyridyl or pyridylamide; X=alkyl, aryl, substituted alkyl, H or hydride, halide, or other anionic moiety; y=an integer from 0 to the complete valence of M; R=alkyl, aryl, haloalkyl, haloaryl, hydrogen, etc; x=1-6, especially 2; Dashed line=optional bond, especially a weak bond; and X and (CR2)x may be tethered or part of a ring.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: January 29, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Phillip D. Hustad, Roger L. Kuhlman, Robert D. J. Froese, Timothy T. Wenzel, Joseph N. Coalter, III