Patents by Inventor Thomas B. Rauchfuss

Thomas B. Rauchfuss 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).

  • Patent number: 10946368
    Abstract: A catalyst having a specific structure and a method of preparing the catalyst is disclosed. A composition is also disclosed, which comprises: (A) an unsaturated compound including at least one aliphatically unsaturated group per molecule, subject to at least one of the following two provisos: (1) the (A) unsaturated compound also includes at least one silicon-bonded hydrogen atom per molecule; and/or (2) the composition further comprises (B) a silicon hydride compound including at least one silicon-bonded hydrogen atom per molecule. The composition further comprises (C) the catalyst. A method of preparing a hydrosilylation reaction product and a dehydrogenative silylation reaction product are also disclosed.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: March 16, 2021
    Assignees: DOW SILICONES CORPORATION, BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Debashis Basu, Aswini K. Dash, Thomas B. Rauchfuss, Ryan Gilbert Watson
  • Publication number: 20200230585
    Abstract: A catalyst having a specific structure and a method of preparing the catalyst is disclosed. A composition is also disclosed, which comprises: (A) an unsaturated compound including at least one aliphatically unsaturated group per molecule, subject to at least one of the following two provisos: (1) the (A) unsaturated compound also includes at least one silicon-bonded hydrogen atom per molecule; and/or (2) the composition further comprises (B) a silicon hydride compound including at least one silicon-bonded hydrogen atom per molecule. The composition further comprises (C) the catalyst. A method of preparing a hydrosilylation reaction product and a dehydrogenative silylation reaction product are also disclosed.
    Type: Application
    Filed: July 7, 2018
    Publication date: July 23, 2020
    Inventors: Debashis BASU, Aswini K. DASH, Thomas B. RAUCHFUSS, Ryan Gilbert WATSON
  • Patent number: 10046318
    Abstract: A ligand component is formed according to formula (1):R12P—X—N?C(R2)—Y, wherein R1 is Ph or Cyc or a C1-C20 substituted or unsubstituted ailkyl group; each Ph is a substituted or unsubstituted phenyl group; each Cyc is a substituted or unsubstituted cycloalkyl group; X is an unsubstituted arylene or a C2-C3 substituted or unsubstituted alkylene; R2 is H, methyl or Ph; and Y N is pyridyl, 6-phenylpyridyl or 6-methylpyridyl; with the proviso that when X is a C2 substituted or unsubstituted alkylene and Y is pyridyl, R2 is methyl or Ph. A reaction product including the ligand component and a metal precursor is prepared by combining the ligand component with the metal precursor. An activated reaction product is formed by activating the reaction product as a hydrosilylation catalyst.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: August 14, 2018
    Assignees: DOW SILICONES CORPORATION, THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Aswini Dash, Thomas B. Rauchfuss, Wan-Yi Chu, Ryan J. Gilbert-Wilson
  • Publication number: 20180036724
    Abstract: A ligand component is formed according to formula (1):R12P—X—N?C(R2)—Y, wherein R1 is Ph or Cyc or a C1-C20 substituted or unsubstituted ailkyl group; each Ph is a substituted or unsubstituted phenyl group; each Cyc is a substituted or unsubstituted cycloalkyl group; X is an unsubstituted arylene or a C2-C3 substituted or unsubstituted alkylene; R2 is H, methyl or Ph; and Y N is pyridyl, 6-phenylpyridyl or 6-methylpyridyl; with the proviso that when X is a C2 substituted or unsubstituted alkylene and Y is pyridyl, R2 is methyl or Ph. A reaction product including the ligand component and a metal precursor is prepared by combining the ligand component with the metal precursor. An activated reaction product is formed by activating the reaction product as a hydrosilylation catalyst.
    Type: Application
    Filed: November 13, 2015
    Publication date: February 8, 2018
    Inventors: Aswini DASH, Thomas B. RAUCHFUSS, Wan-Yi CHU, Ryan J. GILBERT-WILSON
  • Patent number: 8324409
    Abstract: The present disclosure provides methods to make liquid fuels from renewable, carbon neutral precursors. Specifically, methods to prepare 2,5-dimethylfuran from a source of fructose or other carbohydrates using a one-pot synthesis are provided. In some embodiments, the disclosed methods avoid the isolation of intermediates, and employ “green” reagents like formic acid and acetic acid.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: December 4, 2012
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Thomas B. Rauchfuss, Todsapon Thananatthanachon
  • Publication number: 20110263880
    Abstract: The present disclosure provides methods to make liquid fuels from renewable, carbon neutral precursors. Specifically, methods to prepare 2,5-dimethylfuran from a source of fructose or other carbohydrates using a one-pot synthesis are provided. In some embodiments, the disclosed methods avoid the isolation of intermediates, and employ “green” reagents like formic acid and acetic acid.
    Type: Application
    Filed: April 22, 2011
    Publication date: October 27, 2011
    Applicant: The Board of Trustees of the University of Illinois
    Inventors: Thomas B. RAUCHFUSS, Todsapon THANANATTHANACHON
  • Patent number: 7981276
    Abstract: The present invention relates to a process for removing sulfur from sulfur-containing hydrocarbon streams utilizing a multi-ring aromatic hydrocarbon complex containing an alkali metal ion. Preferably, the sulfur-containing hydrocarbon stream is comprised of high molecular weight hydrocarbons, such as a low API gravity, high viscosity crude, tar sands bitumen, an oil derived from shale, or heavy refinery intermediate stocks such as atmospheric resids or vacuum resids which are typically difficult to desulfurize and contain relatively high amounts of sulfur. However, intermediate refinery streams and refinery product streams may also be treated by the process of the current invention to achieve very low sulfur concentrations to meet environmental specification for fuels sulfur content.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: July 19, 2011
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Michael Siskin, Ronald D Myers, Roby Bearden, Jr., Thomas B. Rauchfuss
  • Publication number: 20090139903
    Abstract: The present invention relates to a process for removing sulfur from sulfur-containing hydrocarbon streams utilizing a multi-ring aromatic hydrocarbon complex containing an alkali metal ion. Preferably, the sulfur-containing hydrocarbon stream is comprised of high molecular weight hydrocarbons, such as a low API gravity, high viscosity crude, tar sands bitumen, an oil derived from shale, or heavy refinery intermediate stocks such as atmospheric resids or vacuum resids which are typically difficult to desulfurize and contain relatively high amounts of sulfur. However, intermediate refinery streams and refinery product streams may also be treated by the process of the current invention to achieve very low sulfur concentrations to meet environmental specification for fuels sulfur content.
    Type: Application
    Filed: November 30, 2007
    Publication date: June 4, 2009
    Inventors: Michael Siskin, Ronald D. Myers, Roby Bearden, Thomas B. Rauchfuss