Patents by Inventor Charles E. Banfield

Charles E. Banfield 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).

  • Patent number: 4637197
    Abstract: Methods and compositions are disclosed for absorbing moisture when moisture constraints are present. The moisture absorbing compositions include a curable epoxy resin, a curing agent, and an anhydride of a carboxylic acid. In one embodiment, the anhydride component is present in an amount sufficient both to cure the resin and to absorb the moisture. In other embodiments, a separate curing agent is included. Methods employing such compositions as adhesives or coatings, particularly in electronic device packaging, also are disclosed.
    Type: Grant
    Filed: December 26, 1985
    Date of Patent: January 20, 1987
    Assignee: Epoxy Technology, Inc.
    Inventor: Charles E. Banfield