Patents by Inventor Charlotte I. Sauer

Charlotte I. Sauer 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).

  • High strength adhesives, films and coatings
    Patent number: 4102835
    Abstract: A pressure-sensitive adhesive having greatly improved physical strength is provided by adding 5 to 30 parts by weight of a block copolymer of the type - A - B - A - to 100 parts by weight of a conventional tacky viscoelastic pressure-sensitive adhesive. The resulting reinforced adhesive can be used in sheet form as a transfer adhesive without fibrous reinforcement or where a high strength adhesive is desired.
    Type: Grant
    Filed: January 29, 1976
    Date of Patent: July 25, 1978
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Charles R. Freeman, Charlotte I. Sauer