Patents by Inventor Mark A. Strobel

Mark A. Strobel 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).

  • Shaped polymeric articles having improved receptivity to organic coatings
    Patent number: 4844979
    Abstract: The receptivity of shaped polymer articles (e.g., self-supporting films of polypropylene) to subsequently applied organic coatings is enhanced by exposure to an electrical discharge in the presence of a chlorocarbon or chlorofluorocarbon gas, thereby providing an extremely thin chlorine-containing surface layer in which the Cl:C ratio is inversely related to the distance from the face of the layer. Preferred embodiments of the invention include tape products in which the primed surface of the backing is coated with a pressure-sensitive adhesive or a low adhesion backsize.
    Type: Grant
    Filed: February 13, 1986
    Date of Patent: July 4, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mark A. Strobel, Krishnakant P. Vora
  • Method of providing shaped polymeric articles with improved receptivity to organic coatings
    Patent number: 4828871
    Abstract: The receptivity of shaped polymer articles (e.g., self-supporting films of polypropylene) to subsequently applied organic coatings is enhanced by exposure to an electrical discharge in the presence of a chlorocarbon or chlorofluorocarbon gas, thereby providing an extremely thin chlorine-containing surface layer in which the Cl:C ratio is inversely related to the distance from the face of the layer. Preferred embodiments of the invention include tape products in which the primed surface of the backing is coated with a pressure-sensitive adhesive or a low adhesion backsize.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: May 9, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mark A. Strobel, Krishnakant P. Vora