Patents by Inventor James KUHEL, III

James KUHEL, III 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).

  • METAL-BASED CATALYST FOR PRODUCING POLYDIENES
    Publication number: 20230144912
    Abstract: A method for preparing a polymer, the method comprising polymerizing conjugated diene monomer in the presence of a lanthanide-based catalyst system including (i) a lanthanide-containing compound, (ii) triethyl aluminum, (iii) an aluminum hydride, and (iv) a halogen-containing compound; or a method for preparing a polymer, the method comprising polymerizing conjugated diene monomer in the presence of a lanthanide-based catalyst system including (i) a nickel-containing compound, (ii) triethyl aluminum, (iii) an aluminum hydride, and (iv) a halogen-containing compound selected from fluorine-containing compounds and chlorine-containing compounds.
    Type: Application
    Filed: March 31, 2021
    Publication date: May 11, 2023
    Inventors: Steven M. BALDWIN, James KUHEL, III, Terrence E. HOGAN