Patents by Inventor Robert E. Shumate

Robert E. Shumate 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: 5625098
    Abstract: Amines such as methyl amine are reacted with materials such as reducing sugars in aqueous/hydroxy solvents such as water and/or methanol to prepare N-alkyl polyhydroxy amines. Accordingly, glucose is reacted with methyl amine and the resulting adduct is hydrogenated to yield N-methylglucamine. The N-alkyl polyhydroxyamines can be subsequently reacted with fatty esters to provide polyhydroxy fatty acid amides useful as detersive surfactants. Thus, detersive surfactants are available from non-petrochemical precursors such as sugars and sugar sources such as corn syrup, and fatty acid esters derivable from various fats and oils.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: April 29, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Junan Kao, Jeffrey J. Scheibel, Robert E. Shumate, Cynthia M. Stark, Roland G. Severson, Jr., Kevin L. Garber, Scott A. VanDiest
  • Patent number: 5449770
    Abstract: N-alkylamino polyols substantially free from nickel contamination are prepared by reacting N-alkylamines with reducing sugars in the presence of hydrogen and nickel catalysts under defined conditions of temperature and pressure. The polyols are characterized by their low odor and low color characteristics. Thus, high quality N-methyl glucamine, N-methyl fructamines and the like are secured.
    Type: Grant
    Filed: January 14, 1992
    Date of Patent: September 12, 1995
    Assignee: The Procter & Gamble Company
    Inventors: Robert E. Shumate, Cynthia M. Stark, Jeffrey J. Scheibel, Roland G. Severson, Jr.
  • Patent number: 5334764
    Abstract: Amines such as methyl amine are reacted with materials such as reducing sugars in hydroxy solvents such as methanol to prepare N-alkyl polyhydroxy amines. Accordingly, glucose is reacted with methyl amine and the resulting adduct is hydrogenated to yield N-methylglucamine. The N-alkyl polyhydroxyamines can be subsequently reacted with fatty esters to provide polyhydroxy fatty acid amides useful as detersive surfactants. Thus, detersive surfactants are available from non-petrochemical precursors such as sugars and sugar sources such as corn syrup, and fatty acid esters derivable from various fats and oils.
    Type: Grant
    Filed: May 6, 1993
    Date of Patent: August 2, 1994
    Assignee: The Procter & Gamble Company
    Inventors: Jeffrey J. Scheibel, Daniel S. Connor, Robert E. Shumate, James B. St. Laurent