Patents by Inventor Robert B. Whitehead

Robert B. Whitehead 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).

  • Polyester composition
    Patent number: 4385144
    Abstract: Improved injection moldability of polyethylene terephthalates is achieved by the addition of small amounts of at least one monoepoxyalkane. The injection moldability is further improved by the further addition of small amounts of an adjuvant synergistically cooperative with the monoepoxyalkane. The improved moldability and mold releasability is achieved even when the composition is injection molded at mold temperatures of at least as low as 93.degree. C.
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: May 24, 1983
    Assignee: Ethyl Corporation
    Inventors: Jesse D. Jones, Robert B. Whitehead, Edwin D. Hornbaker