Patents by Inventor Joyce M. Materniak

Joyce M. Materniak 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 manufacturing a carpet having a secondary backing substantially impervious to liquids and the resultant carpet
    Patent number: 5558916
    Abstract: This invention relates to methods for making a carpet having a secondary backing which is substantially impervious to liquids. The methods involve applying a repellent finish onto the secondary backing material and drying the finish. The finish may be applied as foam to the secondary backing, against the force of gravity, by means of a press roll. This invention also includes the resultant carpets prepared from these methods.
    Type: Grant
    Filed: April 6, 1995
    Date of Patent: September 24, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: William W. Heim, James K. Hendrix, Joyce M. Materniak, Peter M. Murphy, Neil A. Panzier, Yashavant V. Vinod
  • Process for imparting stain-resist agent
    Patent number: 5057121
    Abstract: A process for imparting stain resistance to polyamide substrates in continuous processes such as those using a Fluidyer.RTM. apparatus or a Flexnip.RTM. applicator and involving the application of a stain-resist composition containing a mixture of a hydrolyzed copolymer of maleic anhydride and one or more ethylenically unsaturated aromatic monomers with a sulfonated phenol-formaldehyde condensation product is disclosed wherein the stain-resist composition is applied at a pH between about 1.5 and about 3.0 in the prescence of an anionic surfactant in the form of an alkyl aryl sulfonic acid or an alkyl aryl sulfonate salt.
    Type: Grant
    Filed: August 4, 1989
    Date of Patent: October 15, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Patrick H. Fitzgerald, Joyce M. Materniak, Mead S. Moores, Ella D. Openstone, Ernest Rivet