Patents by Inventor Stephen Shatynski

Stephen Shatynski 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).

  • Foundry molding compositions
    Patent number: 4250076
    Abstract: These compositions comprise sand, a novolac binder resin and a hot distortion additive comprising a modified novolac resin which is prepared by co-reacting an alkylphenol with phenol and formaldehyde or by post-alkylating the novolac resin by means of alkylating compounds selected from alkenes, vinyl benzenes and unsaturated alicyclic compounds.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: February 10, 1981
    Assignee: Borden, Inc.
    Inventors: Ronald Golden, Matthew S. Kulaga, Stephen Shatynski