Patents by Inventor Neal L. Wassberg

Neal L. Wassberg 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).

  • Advanced epoxy resins having improved impact resistance when cured
    Patent number: 4552814
    Abstract: Epoxy resins are prepared by reacting a mixture of (A) a diglycidyl ether of a dihydric aliphatic material, (B) a polyglycidyl ether of a polyhydric phenol having an average of at least about 2.6 glycidyl ether groups per molecule and optionally (C) a diglycidyl ether of a dihydric phenol with a dihydric phenol in the presence of a catalyst.Coating compositions containing the aforementioned epoxy resins have improved chip resistance, chemical resistance or pencil hardness when cured.
    Type: Grant
    Filed: January 30, 1985
    Date of Patent: November 12, 1985
    Assignee: The Dow Chemical Company
    Inventors: Michael B. Cavitt, Neal L. Wassberg