Patents by Inventor William E. Britton, Jr.

William E. Britton, Jr. 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).

  • Thixotropic printing ink compositions and methods of preparing same
    Patent number: 5024700
    Abstract: A method of imparting thixotropic properties to printing ink compositions comprising blending at least one ethanolamine compound into a printing ink composition at sufficient concentration to obtain a final printing ink material exhibiting desired thixotropic properties. The ethanolamine compounds usable in connection with the present invention include monoethanolamine, diethanolamine and triethanolamine. In at least one naphthenic ink oil based printing ink composition, desirable thixotropic properties are exhibited when TEA is added at levels varying between 0.5 and 2.0 percent by weight. The optimal amount of TEA in such naphthenic oil based ink composition is approximately 0.7 percent by weight. Ink formulations in accordance with the present invention may be based on organic ink vehicles including naphthenic ink oils and/or hydrocarbon resins.
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: June 18, 1991
    Assignee: The Ink Company
    Inventor: William E. Britton, Jr.