Patents by Inventor Nicholas W. Neuberg

Nicholas W. Neuberg 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).

  • Method of providing friable polytetrafluoroethylene products
    Patent number: 5891573
    Abstract: A method is disclosed for providing a friable polytetrafluoroethylene (PTFE) product that has particles of a desired size which are flowable and do not tend to agglomerate. To achieve this result, the PTFE starting material is handled at a temperature below 66.degree. F., and preferably below 55.degree. F., before irradiating. The PTFE starting material may be mixed with a wetting agent before irradiating to provide a product that has enhanced dispersibility. The source of radiation may include electron beam radiation, nuclear radiation, or radiation from a cobalt-60 (CO.sub.60) source.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: April 6, 1999
    Assignee: Shamrock Chemicals Corporation
    Inventors: Nicholas W. Neuberg, George Poszmik, Manshi Sui