Patents by Inventor Thomas Pugel

Thomas Pugel 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).

  • Novel pressure sensitive adhesive compositions (C-2511)
    Patent number: 5066694
    Abstract: This invention relates to a pressure sensitive adhesive compositions which include an emulsion of a metal neutralized sulfonated copolymer of isoprene/sodium styrene sulfonate, wherein the neutralized sulfonated copolymer has about 5 to about 250 meq. of neutralized sulfonate groups per 100 grams of the neutralized sulfonated copolymer, and less than about 50 parts by weight of an emulsion of a preferential polar plasticizer, and less than about 300 parts by weight of an emulsion of a hydrocarbon tackifying resin of a petroleum or coal tar distillate, having about 4 to 12 carbon atoms, wherein the hydrocarbon resin is composed of aliphatic dienes and monoolefins per 100 parts by weight of the neutralized sulfonated copolymer.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: November 19, 1991
    Assignee: Exxon Research and Engineering Company
    Inventors: Pawan K. Agarwal, Thomas Pugel