Patents by Inventor Elizabeth Ann Eggert

Elizabeth Ann Eggert 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 the use of hydrophobic bleaching systems in cold batch textile preparation
    Patent number: 6569209
    Abstract: A method for the treatment of a non-finished textile component in a cold batch process is provided. The method comprises the steps of treating a non-finished textile component in an aqueous bleaching solution of hydrogen and a hydrophobic bleach activator or hydrophobic peracid followed by a treatment time of from about 1 hour to about 15 hours at a temperature of 35° C. or less. Preferred bleach activators include the alkanoyloxybenzene sulfonates and in particular noanoyloxybenzene sulfonate. The method provides acceptable whiteness and superior fiber protection and fabric strength benefits in significantly reduced treatment times versus conventional.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: May 27, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Jiping Wang, Elizabeth Ann Eggert
  • Method for the use of hydrophobic bleaching systems in cold batch textile preparation
    Publication number: 20020157189
    Abstract: A method for the treatment of a non-finished textile component in a cold batch process is provided. The method comprises the steps of treating a non-finished textile component in an aqueous bleaching solution of hydrogen and a hydrophobic bleach activator or hydrophobic peracid followed by a treatment time of from about 1 hour to about 15 hours at a temperature of 35° C. or less. Preferred bleach activators include the alkanoyloxybenzene sulfonates and in particular noanoyloxybenzene sulfonate. The method provides acceptable whiteness and superior fiber protection and fabric strength benefits in significantly reduced treatment times versus conventional.
    Type: Application
    Filed: February 27, 2001
    Publication date: October 31, 2002
    Inventors: Jiping Wang, Elizabeth Ann Eggert