Patents by Inventor Mary A. Hittner

Mary A. Hittner 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).

  • Pressure-sensitive adhesive susceptible to ultraviolet light-induced detackification
    Patent number: 4286047
    Abstract: "Release on demand" pressure-sensitive adhesives and tapes which are readily detackifiable by exposure to actinic radiation. The adhesive system has an oxirane ring-bearing component blended thereinto (or preferably reacted therewith) to achieve an adhesive epoxy equivalent value of 400-900, preferably 450-700. The adhesive system also includes an effective amount of ionic photoinitiator capable of promoting the polymerization of oxirane rings.
    Type: Grant
    Filed: July 25, 1979
    Date of Patent: August 25, 1981
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard E. Bennett, Mary A. Hittner