Patents by Inventor Joyce M. Whitfield

Joyce M. Whitfield 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).

  • Additive for felted cellulose fibers
    Patent number: 4432834
    Abstract: A composition is provided for addition to cellulosic fibers prior to felting them into a sheet comprising as component (a) a monomeric water soluble diallyl dimethyl ammonium halide or homopolymer thereof or mixtures thereof and as component (b) a water dispersible complex fatty amido compound, the proportion of (a) and (b) being sufficient to enhance softness of the dried sheet while increasing or not substantially reducing absorbency of water and tensile strength.
    Type: Grant
    Filed: April 11, 1980
    Date of Patent: February 21, 1984
    Assignee: Nalco Chemical Company
    Inventors: Joyce M. Whitfield, David R. Cosper