Patents by Inventor Gerald H. Reifenberg, deceased

Gerald H. Reifenberg, deceased 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).

  • Heterogeneous organotin catalysts
    Patent number: 6166235
    Abstract: This invention provides: (a) new organotin functionalized silanes: (b) a solid prepared by chemically bonding organotin functionalized silanes to a solid inorganic support containing surface hydroxy groups: (c) a solid catalyst prepared from said supported organotin functionalized silane; (d) a process for conducting esterification or transesterification, and urethane, urea, silicone, and amino forming reaction utilizing said solid supported catalyst; (e) a process of separating the solid supported catalyst from the reaction products employing ligand-solid separation techniques; (f) reuse of the solid supported catalyst after being separated from the reaction products; (g) a continuous esterification or transesterification reaction or urethane, urea, silicone, or amino form.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: December 26, 2000
    Assignee: Elf Atochem North America, Inc.
    Inventors: William D. Honnick, Gerald H. Reifenberg, deceased, Kevin C. Cannon
  • Heterogeneous organotin catalysts
    Patent number: 6162755
    Abstract: This invention provides: (a) new organotin functionalized silanes: (b) a solid prepared by chemically bonding organotin functionalized silanes to a solid inorganic support containing surface hydroxy groups: (c) a solid catalyst prepared from said supported organotin functionalized silane; (d) a process for conducting esterification or transesterification, and urethane, urea, silicone, and amino forming reaction utilizing said solid supported catalyst; (e) a process of separating the solid supported catalyst from the reaction products employing ligand--solid separation techniques; (f) reuse of the solid supported catalyst after being separated from the reaction products; (g) a continuous esterification or transesterification reaction or urethane, urea, silicone, or amino form.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: December 19, 2000
    Assignee: Elf Atochem North American, Inc.
    Inventors: William D. Honnick, Gerald H. Reifenberg, deceased, Kevin C. Cannon