Patents by Inventor Gregory J. Stuk

Gregory J. Stuk 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).

  • Addition polymerizable urethane-based anaerobic adhesives made from tin (II) organoesters
    Patent number: 4451627
    Abstract: An addition polymerizable adhesive is prepared by using the reaction product of (1) an isocyanate compound (such as 2-isocyanatoethyl methacrylate) and (2) an active hydrogen compound (such as a poly(ethylene glycol)) wherein the reaction between (1) and (2) is catalyzed with a tin (II) organoester (such as stannous octoate). The adhesives of the invention have surprisingly long shelf lives compared to similar adhesives made with other catalysts.
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: May 29, 1984
    Assignee: The Dow Chemical Company
    Inventors: Kurt C. Frisch, Jr., Michele R. Lock, Gregory J. Stuk