Patents by Inventor Karen M. Bland

Karen M. Bland 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).

  • Sulfonated 2-(2'-hydroxyaryl)-2H-benzotriazoles and/or sulfonated aromatic formaldehyde condensates and their use to improve stain resistance and dye lightfasteness
    Patent number: 5190565
    Abstract: A new class of sulfonated 2-(2'-hydroxyaryl)-2H-benzotriazole compounds and method for using them and other sulfonated hydroxyaryl benzotriazoles on nylon fibers to improve stain resistance and dye lightfastness has been discovered. A process is provided for improving stain resistance of nylon fibers by treatment with sulfonated aromatic-formaldehyde condensate and fluorinated dry soil resist agents.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: March 2, 1993
    Assignee: Allied-Signal Inc.
    Inventors: Morris B. Berenbaum, John H. Bonfield, Charles J. Cole, Paul W. Harris, Thomas P. J. Izod, Harry E. Ulmer, Frederick R. Hopf, James T. Yardley, Karen M. Bland
  • Sulfonated 2-(2'-hydroxyaryl)-2H-benzotriazoles and/or sulfonated aromatic formaldehyde condensates
    Patent number: 4990623
    Abstract: A new class of sulfonated 2-(2'-hydroxyaryl)-2H-benzotriazole compounds and method for using them and other sulfonated hydroxyaryl benzotriazoles on nylon fibers to improve stain resistance and dye lightfastness has been discovered. A process is provided for improving stain resistance of nylon fibers by treatment with sulfonated aromatic-formaldehyde condensate and fluorinated dry soil resist agents.
    Type: Grant
    Filed: July 24, 1989
    Date of Patent: February 5, 1991
    Inventors: Morris B. Berenbaum, John H. Bonfield, Charles J. Cole, Paul W. Harris, Thomas P. J. Izod, Harry E. Ulmer, Frederick R. Hopf, James T. Yardley, Karen M. Bland