Patents by Inventor Jeffrey H. Edwards

Jeffrey H. Edwards 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).

  • Method for 1,2-substituted imidazoline compositions
    Patent number: 5214155
    Abstract: This invention is a method for making 1,2-substituted imidazoline compositions utilizing a polyamine mixture containing a high concentration of linear polyamine. The polyamine is either triethylenetetramine or tetraethylenepentamine. The polyamine mixture is reacted with a fatty acid, fatty dimer acid or the fatty esters thereof to yield the 1,2-substituted imidazoline composition. The highly linear polyamine provides higher yields of the imidazoline compound in the composition.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: May 25, 1993
    Assignee: Texaco Chemical Company
    Inventors: Donald R. Hollingsworth, Jeffrey H. Edwards