Patents Represented by Attorney Wm. J. Farrington

Find this attorney in the Justia Lawyer Directory

  • Process for the preparation of polyglycidamides
    Patent number: 5003066
    Abstract: The polyglycidamides are epoxy derivatives of cyclic ureas such as glycouril and aminotriazines such as melamine and guanamines. They are prepared from cyclic ureas and aminotriazines by methylolating with formaldehyde, etherifying with an alcohol, transetheramidizing with acrylamide and epoxidizing with hydrogen peroxide. They are used with polyamines and other epoxy reactive oligomers to provide crosslinkable coating systems which posses solvent, chemical and water resistance and UV stability.
    Type: Grant
    Filed: March 29, 1989
    Date of Patent: March 26, 1991
    Assignee: Monsanto Company
    Inventor: William F. Pfohl
  • Styrene viscosity modifier of grafted starch polymer solutions
    Patent number: 4552940
    Abstract: A grafted starch polymer solution having a lower viscosity through the incorporation of styrene into said grafted starch polymer.
    Type: Grant
    Filed: September 6, 1984
    Date of Patent: November 12, 1985
    Assignee: Monsanto Company
    Inventor: Donald N. Van Eenam