Patents by Inventor Vivian R. Hofmeister

Vivian R. Hofmeister 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).

  • Removable polyurethane adhesive
    Patent number: 5227409
    Abstract: A polyurethane adhesive is prepared from a reaction mixture containing small amounts of chain extender material and a high equivalent weight of a polyol and a monoalcohol. An article adhered to a substrate using this adhesive is firmly affixed to the substrate, yet can be removed without leaving residual adhesive on the substrate. In addition, this adhesive can be washed and reused if desired.
    Type: Grant
    Filed: March 27, 1992
    Date of Patent: July 13, 1993
    Assignee: The Dow Chemical Company
    Inventors: Larry W. Mobley, Vivian R. Hofmeister
  • Removable polyurethane adhesive
    Patent number: 5102714
    Abstract: A polyurethane adhesive is prepared from a reaction mixture containing small amounts of chain extender material and a high equivalent weight of a polyol and a monoalcohol. An article adhered to a substrate using this adhesive is firmly affixed to the substrate, yet can be removed without leaving residual adhesive on the substrate. In addition, this adhesive can be washed and reused if desired.
    Type: Grant
    Filed: December 18, 1989
    Date of Patent: April 7, 1992
    Assignee: The Dow Chemical Company
    Inventors: Larry W. Mobley, Vivian R. Hofmeister