Patents by Inventor Bruce Eric Wise

Bruce Eric Wise 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 for promotion of bench life extension in a hot box binder system
    Patent number: 5643675
    Abstract: The invention relates to the use of tripotassium citrate monohydrate and other alkali metal salts of polybasic acid as bench life extenders in heat curable hot box foundry mixtures comprising sand, thermosetting binder resin, and a latent acid catalyst composition. In one embodiment, the thermosetting binder resin is a phenolic resole resin modified with urea formaldehyde resin. In another embodiment, the thermosetting binder resin is a furfuryl alcohol resin modified with urea formaldehyde resin.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 1, 1997
    Assignee: Borden, Inc.
    Inventors: William John Ward, Robert Anton Laitar, Bruce Eric Wise