Patents by Inventor David E. Whittlinger

David E. Whittlinger 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: 6211139
    Abstract: A composition comprising: (a) a compound of the following structural formula: wherein each of R* and R** is independently a linear, branched or cyclic alkylene group containing 2 to 12 carbon atoms, wherein no two nitrogen atoms are separated by fewer than 2 carbon atoms; each of A1, A2, A3, A4, and A5 is independently a straight or branched alkylene containing 2 to 4 carbon atoms; each of R1, R2, R3, R4, and R5 is independently —H or RAC(O)— wherein RA is straight or branched alkyl or alkenyl containing 7 to 21 carbon atoms and 0 to 4 carbon-carbon double bonds; provided that at least one of R1, R2, R3, R4, or R5 is RAC(O)—; each of Q1, Q2 and Q3 is independently —H, —CH3, —C2H5, —C3H7, —C4H5, benzyl, —CH2COOH, or —CH2COOA−; or, if R* is a —CH2CH2— group, Q1 and Q3 together or Q1 and Q2 together may be a —CH2CH2— group to form a six-membered piperazine ring; or, if R** is a —CH2CH2— group,
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: April 3, 2001
    Assignee: Goldschmidt Chemical Corporation
    Inventors: Robert O. Keys, Floyd E. Friedli, Damon M. Dalrymple, Monna Manning, Craig Poffenberger, David E. Whittlinger, Wangqi Hou
  • Patent number: 5284650
    Abstract: A process is disclosed for making substantially solvent free quaternary ammonium compounds using fatty acids, amines and quaternizing agents without side reactions that would produce esters of fatty acids. A relatively small amount of a water-alcohol solvent is used in the quaternizing reaction after which a fatty acid is added and the solvent removed by sparging and/or vacuum.
    Type: Grant
    Filed: November 5, 1992
    Date of Patent: February 8, 1994
    Assignee: Sherex Chemical Co., Inc.
    Inventor: David E. Whittlinger
  • Patent number: 5223628
    Abstract: A process is disclosed for making substantially solvent free quaternary ammonium compounds using fatty acids, amines and quaternizing agents without side reactions that would produce esters of fatty acids. A relatively small amount of a water-alcohol solvent is used in the quaternizing reaction after which a fatty acid is added and the solvent removed by sparging and/or vacuum.
    Type: Grant
    Filed: November 7, 1991
    Date of Patent: June 29, 1993
    Assignee: Sherex Chemical Company, Inc.
    Inventor: David E. Whittlinger
  • Patent number: 5221794
    Abstract: The invention relates to a method of producing a mixture of a quaternary ammonium compound, fatty acid, fatty acid ester and tertiary amine salt in situ which is a highly functional mixture that is manufactured in a single step reaction whereby quaternization is completed without the aid of solvents, especially flammable solvents. The single step reaction process eliminates separate blending of individual components. The compositions obtained can be used as fabric softeners, in modified clays, as hair treating compounds and as disinfectants.
    Type: Grant
    Filed: November 7, 1991
    Date of Patent: June 22, 1993
    Assignee: Sherex Chemical Company, Inc.
    Inventors: Jeannene A. Ackerman, Michael Miller, David E. Whittlinger
  • Patent number: 4622168
    Abstract: Disclosed is a method for improving the storage stability of a blend of an amine and an imidazolinium compound. Such method comprises adding an effective amount of a bisulfite agent to said blend. The stabilized blend is especially stable at elevated temperatures of storage.
    Type: Grant
    Filed: April 19, 1985
    Date of Patent: November 11, 1986
    Assignee: Sherex Chemical Company, Inc.
    Inventor: David E. Whittlinger
  • Patent number: RE37555
    Abstract: The invention relates to a method of producing a mixture of a quaternary ammonium compound, fatty acid, fatty acid ester and tertiary amine salt in situ which is a highly functional mixture that is manufactured in a single step reaction whereby quaternization is completed without the aid of solvents, especially flammable solvents. The single step reaction process eliminates separate blending of individual components. The compositions obtained can be used as fabric softeners, in modified clays, as hair treating compounds and as disinfectants.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: February 19, 2002
    Assignee: Goldschmidt Chemical Company
    Inventors: Jeannene A. Ackerman, Michael Miller, David E. Whittlinger