Patents by Inventor Gregory T. Whiteker

Gregory T. Whiteker 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: 20020103310
    Abstract: This invention relates to a process to polymerize olefin(s) comprising combining a solution, slurry or solid comprising one or more bulky ligand metallocene catalyst compounds, an optional support, and or one or more activator(s) with a solution comprising one or more phenoxide catalyst compounds, and thereafter, introducing one or more olefin(s) and the combination into a polymerization reactor. This invention also relates to a polymer of ethylene wherein the polymer has a density of 0.910 to 0.930 g/cc, a melt index of 0.3 to 2.0 dg/min, and a 15 to 35 &mgr;m thick film of the polymer has a 45° gloss of 60 or more, a haze of 7% or less, and a dart impact of 600 g or more.
    Type: Application
    Filed: December 4, 2000
    Publication date: August 1, 2002
    Inventors: John F. Szul, Tae Hoon Kwalk, David James Schreck, Simon Mawson, Matthew G. McKee, Kersten Anne Terry, Mark G. Goode, Gregory T. Whiteker, Eric A. Lucas
  • Publication number: 20020103313
    Abstract: The invention provides new olefin(s) polymerization catalyst systems, including controlled pore glass support.
    Type: Application
    Filed: December 7, 2000
    Publication date: August 1, 2002
    Inventors: Thomas Henry Peterson, Gregory T. Whiteker
  • Publication number: 20020077431
    Abstract: This invention relates to a method to oligomerize ethylene comprising combining ethylene with a catalyst system comprising an activator and one or more phenoxide group metal compounds represented by the formula: 1
    Type: Application
    Filed: December 19, 2000
    Publication date: June 20, 2002
    Inventor: Gregory T. Whiteker
  • Publication number: 20020016254
    Abstract: This invention relates to a catalyst system comprising an activator and one or more heteroatom substituted phenoxide group 3 to 10 transition metal or lanthanide metal compounds wherein the metal is bound to the oxygen of the phenoxide group and provided that:
    Type: Application
    Filed: August 20, 2001
    Publication date: February 7, 2002
    Inventors: Gregory T. Whiteker, Jack A. Smith
  • Patent number: 6333389
    Abstract: This invention relates to a catalyst system comprising an activator and one or more heteroatom substituted phenoxide group 3 to 10 transition metal or lanthanide metal compounds wherein the metal is bound to the oxygen of the phenoxide group and provided that: a) if more than one heteroatom substituted phenoxide is present it is not bridged to the other heteroatom substituted phenoxide, b) if the metal is a group 4 metal then the carbon adjacent to the carbon bound to the oxygen of the phenoxide may not be bound to an aldehyde or an ester, c) the carbon ortho to the carbon bound to the oxygen of the phenoxide may not be bound to the C1 carbon in a group represented by the formula: wherein R6 and R7 are independently hydrogen, halogen, a hydrocarbon group, a heterocyclic compound residue, an oxygen containing group, a nitrogen containing group, a boron containing group, an sulfur containing group, a phosphorus containing group, a silicon containing group, a germanium containing group, or a
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: December 25, 2001
    Assignee: Univation Technologies, LLC
    Inventors: Gregory T. Whiteker, Jack A. Smith
  • Publication number: 20010031843
    Abstract: This invention relates to a catalyst system comprising an activator and one or more heteroatom substituted phenoxide group 3 to 10 transition metal or lanthanide metal compounds wherein the metal is bound to the oxygen of the phenoxide group and provided that:
    Type: Application
    Filed: February 10, 1999
    Publication date: October 18, 2001
    Inventors: GREGORY T. WHITEKER, JACK A. SMITH
  • Patent number: 5527752
    Abstract: A catalyst precursor is provided which is useful, when combined with a cocatalyst, in the manufacture of polyolefins. The catalyst precursor is of the formula: ##STR1## where M is a transition metal, preferably Zr or Hf; L is a substituted or unsubstituted, .pi. bonded ligand coordinated to M, preferably a cyclopentadienyl-type ligand; Q can be the same or different and is independently selected from the group consisting of --O, --NR, --CR.sub.2 and --S; Y is either C or S; Z is selected from the group consisting of --OR, --NR.sub.2, --CR.sub.3, --SR, --SiR.sub.3, --PR.sub.
    Type: Grant
    Filed: March 29, 1995
    Date of Patent: June 18, 1996
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Walter T. Reichle, Frederick J. Karol, Gregory T. Whiteker
  • Patent number: 5491266
    Abstract: This invention relates to asymmetric syntheses in which a prochiral or chiral compound is contacted in the presence of an optically active metal-ligand complex catalyst to produce an optically active product.
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: February 13, 1996
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: James E. Babin, Gregory T. Whiteker
  • Patent number: 5360938
    Abstract: This invention relates to asymmetric syntheses in which a prochiral or chiral compound is contacted in the presence of an optically active metal-ligand complex catalyst to produce an optically active product.
    Type: Grant
    Filed: July 16, 1992
    Date of Patent: November 1, 1994
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: James E. Babin, Gregory T. Whiteker