Patents by Inventor Mary B. Grubb

Mary B. Grubb 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).

  • Aminoplast/polyurethane wear layer for PVC support surface
    Patent number: 5643677
    Abstract: A resilient surface covering has a wear layer including a crosslinked aminoplast/polyurethane which is directly adhered to a vinyl support surface. The adhesion between the wear layer and support surface is improved by including at least 20% polyurethane by weight based on the total amount of aminoplast, polyurethane and epoxy resin in the wear layer composition, or by applying the wear layer composition to a gelled, but unfused vinyl support surface by fusing the vinyl support surface and curing the wear layer in a single step.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: July 1, 1997
    Assignee: Armstrong World Industries, Inc.
    Inventors: Joseph P. Feifer, Mary B. Grubb, Claude R. Rupp, Jr., William T. Sigman
  • Method for making stain and scratch resistant resilient surface coverings
    Patent number: 4855165
    Abstract: Resilient surface coverings having improved scratch and stain resistance are disclosed in which a first top layer of a thermally-cured composition of a polyol component, an aminoplast component and an acid catalyst is adhered to a crosslinked or crosslinkable second layer material. A process to prepare such surface coverings is also disclosed.
    Type: Grant
    Filed: May 18, 1988
    Date of Patent: August 8, 1989
    Assignee: Armstrong World Industries, Inc.
    Inventors: Nicholas C. Bolgiano, Mary B. Grubb, Raymond S. Hudson, William T. Sigman
  • Stain and scratch resistant resilient surface coverings
    Patent number: 4781987
    Abstract: Resilient surface coverings having improved scratch and stain resistance are disclosed in which a first top layer of a thermally-cured composition of a polyol component, an aminoplast component and an acid catalyst is adhered to a crosslinked or crosslinkable second layer material. A process to prepare such surface coverings is also disclosed.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: November 1, 1988
    Assignee: Armstrong World Industries, Inc.
    Inventors: Nicholas C. Bolgiano, Mary B. Grubb, Raymond S. Hudson, William T. Sigman