Patents by Inventor Jimmy D. Nichols

Jimmy D. Nichols 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).

  • Continuous production of high impact polystyrene
    Patent number: 4777210
    Abstract: The invention relates to a continuous flow process for producing polystyrene having discrete particles of rubber included therein. The process utilizes a pre-inversion reactor, in which a solution of styrene, polystyrene and rubber are mixed prior to being introduced into a second stirred tank reactor. The viscosity of the solutions in the pre-inversion reactor and in the second stirred tank reactor are closely controlled to produce desirable HIPS products.
    Type: Grant
    Filed: July 25, 1986
    Date of Patent: October 11, 1988
    Assignee: Cosden Technology, Inc.
    Inventors: Jose M. Sosa, Jimmy D. Nichols