Patents by Inventor Timothy T. Wenzel

Timothy T. Wenzel 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: 20020161141
    Abstract: The invention provides for polymerization catalyst compositions, and for methods for introducing the catalyst compositions into a polymerization reactor. More particularly, the method combines a catalyst component containing slurry and a catalyst component containing solution to form the completed catalyst composition for introduction into the polymerization reactor. The invention is also directed to methods of preparing the catalyst component slurry, the catalyst component solution and the catalyst compositions, to methods of controlling the properties of polymer products utilizing the catalyst compositions, and to polymers produced therefrom.
    Type: Application
    Filed: November 27, 2001
    Publication date: October 31, 2002
    Inventors: Simon Mawson, Sun-Chueh Kao, Tae Hoon Kwalk, Timothy Roger Lynn, David H. McConville, Matthew Gary McKee, John Francis Szul, Kersten Anne Terry, Timothy T. Wenzel, Mark Gregory Goode, John Henry Oskam, Robert J. Jorgensen, Robert Harold Vogel
  • Publication number: 20020143119
    Abstract: The present invention relates to the use of at least one solid compound that when used with a polymerization catalyst in a polymerization process results in a phase change of the solid compound to a liquid that renders the polymerization catalyst substantially or completely inactive.
    Type: Application
    Filed: February 1, 2002
    Publication date: October 3, 2002
    Inventors: Timothy T. Wenzel, David James Schreck, Thomas H. Peterson
  • Publication number: 20020123580
    Abstract: The present invention relates to a Group 15 containing transition catalyst compound, a catalyst system and a supported catalyst system thereof and to a process for polymerizing olefin(s) utilizing them.
    Type: Application
    Filed: December 20, 2001
    Publication date: September 5, 2002
    Inventors: Timothy T. Wenzel, Thomas Henry Peterson
  • Publication number: 20020119890
    Abstract: This invention relates to a method to prepare a supported catalyst system comprising preparing a combination comprising 1) a first supported catalyst system comprising a support, an activator and a metal catalyst compound, and 2) a second supported catalyst system comprising a support, an activator and a metal catalyst compound and thereafter spray-drying the combination.
    Type: Application
    Filed: February 26, 2001
    Publication date: August 29, 2002
    Inventors: Timothy T. Wenzel, David James Schreck
  • Publication number: 20020107342
    Abstract: The invention provides for polymerization catalyst compositions, and for methods for introducing the catalyst compositions into a polymerization reactor. More particularly, the method combines a catalyst component containing slurry and a catalyst component containing solution to form the completed catalyst composition for introduction into the polymerization reactor. The invention is also directed to methods of preparing the catalyst component slurry, the catalyst component solution and the catalyst compositions, to methods of controlling the properties of polymer products utilizing the catalyst compositions, and to polymers produced therefrom.
    Type: Application
    Filed: December 4, 2000
    Publication date: August 8, 2002
    Inventors: Simon Mawson, Sun-Chueh Kao, Tae Hoon Kwalk, Timothy Roger Lynn, David H. McConville, Matthew Gary McKee, John Francis Szul, Kersten Anne Terry, Timothy T. Wenzel, Mark Gregory Goode, John Henry Oskam, Robert J. Jorgensen, Robert Harold Vogel
  • Publication number: 20020099152
    Abstract: The present invention relates to the use of thermally triggered compounds that when used with a polymerization catalyst in a polymerization process results in the controllable generation of one or more catalyst inhibitors that renders the polymerization catalyst substantially or completely inactive.
    Type: Application
    Filed: November 30, 2000
    Publication date: July 25, 2002
    Inventors: Timothy T. Wenzel, Dick Alan Nagaki, Thomas Henry Peterson, David James Schreck
  • Patent number: 6369174
    Abstract: The present invention relates to the use of at least one solid compound that when used with a polymerization catalyst in a polymerization process results in a phase change of the solid compound to a liquid that renders the polymerization catalyst substantially or completely inactive.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: April 9, 2002
    Assignee: Univation Technologies, LLC
    Inventors: Timothy T. Wenzel, David James Schreck, Thomas H. Peterson
  • Patent number: 6346584
    Abstract: The present invention relates to the use of at least one acid and at least one base and/or at least one reductant and at least one oxidant that when used with a polymerization catalyst in a polymerization process results in the controllable generation of a catalyst inhibitor that renders the polymerization catalyst substantially or completely inactive.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: February 12, 2002
    Assignee: Univation Technologies, LLC
    Inventors: Timothy T. Wenzel, Dick A. Nagaki, Simon Mawson, David James Schreck, Thomas H. Peterson
  • Publication number: 20020013219
    Abstract: The present invention relates to the use of at least one acid and at least one base and/or at least one reductant and at least one oxidant that when used with a polymerization catalyst in a polymerization process results in the controllable generation of a catalyst inhibitor that renders the polymerization catalyst substantially or completely inactive.
    Type: Application
    Filed: August 17, 2001
    Publication date: January 31, 2002
    Inventors: Timothy T. Wenzel, Dick A. Nagaki, Simon Mawson, David James Schreck, Thomas H. Peterson
  • Patent number: 6180735
    Abstract: The present invention relates to a catalyst composition and a method for making the catalyst composition of a polymerization catalyst and a carbonyl compound. The invention is also directed to the use of the catalyst composition in the polymerization of olefin(s). In particular, the polymerization catalyst system is supported on a carrier. More particularly, the polymerization catalyst comprises a bulky ligand metallocene-type catalyst system.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: January 30, 2001
    Assignee: Univation Technologies
    Inventor: Timothy T. Wenzel
  • Patent number: 5136105
    Abstract: A process for the oxidation of a compound having a terminal carbon-carbon double bond to produce the corresponding aldehyde is disclosed. In one embodiment, the process comprises contacting the compound with molecular oxygen in the presence of a Group VIII metal component initially substantially free of NO ligands and NO.sub.2 ligands in an amount effective to promote the oxidation of the compound, a reoxidation component in an amount effective to reoxidize a reduced Group VIII metal component to the Group VIII metal component and at least one alcohol selected from secondary alcohols, tertiary alcohols and mixture thereof in an amount effective to increase the aldehyde selectivity of the oxidation. The contacting occurs at conditions effective to oxidize the compound and the form the corresponding aldehyde.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: August 4, 1992
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: Timothy T. Wenzel