Patents by Inventor Roland G. Severson

Roland G. Severson 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: 5194639
    Abstract: Polyhydroxy fatty acid amide materials are prepared from reactants such as N-methylglucamine and fatty acid esters in the presence of hydroxy solvents. Polyhydroxy fatty acid amide detersive surfactants are secured. By-product and color formation are minimized.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: March 16, 1993
    Assignee: The Procter & Gamble Company
    Inventors: Daniel S. Connor, Jeffrey J. Scheibel, Roland G. Severson
  • Patent number: 5188769
    Abstract: The synthesis of polyhydroxy fatty acid amide surfactants exemplified by the compound C.sub.11 H.sub.23 C(O)N(CH.sub.3)CH.sub.2 [CHOH].sub.4 CH.sub.2 OH by reacting a fatty acid ester with an N-alkyl sugar amine can result in contamination of the product surfactant by residual sources of fatty acids. These residual fatty acids may be unacceptable in high sudsing detergent compositions, such as dishwashing liquids, especially with Ca or Mg cations. The process of this invention reacts such contaminants with alkyl amines or, especially, ethanolamine, to convert them into fatty alkyl- or alkanolamides, which are quite acceptable in fully-formulated detergent compositions for home or industrial use.
    Type: Grant
    Filed: March 26, 1992
    Date of Patent: February 23, 1993
    Assignee: The Procter & Gamble Company
    Inventors: Daniel S. Connor, Jeffrey J. Scheibel, Bruce P. Murch, Mark H. Mao, Eugene P. Gosselink, Roland G. Severson, Jr.
  • Patent number: 4537706
    Abstract: Heavy-duty liquid detergents containing anionic surfactant, fatty acid, builder, proteolytic or amylolytic enzyme, boric acid or a boron compound capable of forming boric acid in the composition, and calcium ion are disclosed. Boric acid provides improved enzyme stability in the compositions.
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: August 27, 1985
    Assignee: The Procter & Gamble Company
    Inventor: Roland G. Severson, Jr.
  • Patent number: 4537707
    Abstract: Heavy-duty liquid detergents containing anionic surfactant, fatty acid, builder, proteolytic enzyme, boric acid or a boron compound capable of forming boric acid in the composition, formate, and calcium ion are disclosed. The combination of boric acid and formate provides improved protease stability in the compositions.
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: August 27, 1985
    Assignee: The Procter & Gamble Company
    Inventor: Roland G. Severson, Jr.